A flat out type door handle

Abstract

The present application relates to the technical field of automobile door, and particularly relates to a flat-out type door handle, which comprises a handle, a blocking mechanism, an energy storage mechanism, a first connecting piece and a second connecting piece, the first connecting piece is connected with the first end of the handle, the second connecting piece is connected with the second end of the handle, the blocking mechanism is used for blocking the second connecting piece to make it temporarily unable to reset after the first end of the handle in the initial hidden position is pressed inward and the second connecting piece is pulled by the second end of the handle; a potential energy storage member for promoting the first connecting piece and the energy storage mechanism to approach each other is arranged between the first connecting piece and the energy storage mechanism, the energy storage mechanism is limited after moving away from the first connecting piece, so that the potential energy generated between the energy storage mechanism and the first connecting piece promotes the first connecting piece to rotate and pushes the second end of the handle to the unfolded position of the handle, the flat-out type handle of the present application is a mechanical structure, and the conversion of the initial hidden position, the pressing position, the unfolded position and the unlocking position of the handle can be realized without additional electrical elements, thereby saving cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile door, in particular to a flat-out type door handle. BACKGROUND

[0002] In the prior art, the hidden door handle triggers the micro switch and other electronic components by pressing the handle, and then the driver pushes out the handle, such as the patent with the application number CN201920661780.2. This method has a high cost, and the electronic components are easy to break, causing the door to be unable to be unlocked. SUMMARY

[0003] In order to solve the problem of high cost of the door handle containing a driver in the prior art, the present application provides a mechanical flat-out type door handle which saves cost.

[0004] The technical scheme adopted by the present application to solve its technical problems is:

[0005] A flat-out type door handle, comprising:

[0006] a handle, the handle is connected with a first connecting piece and a second connecting piece, the first connecting piece is connected with the first end of the handle, and the second connecting piece is connected with the second end of the handle,

[0007] a blocking mechanism, the blocking mechanism is used to block the second connecting piece so that it cannot be reset temporarily after the first end of the handle in the initial hidden position is pressed inward and the second connecting piece is pulled by the second end of the handle;

[0008] an energy storage mechanism, a potential energy storage member for promoting the mutual approach between the first connecting piece and the energy storage mechanism is arranged between the first connecting piece and the energy storage mechanism, the energy storage mechanism is limited after moving away from the first connecting piece, so that the potential energy generated between the energy storage mechanism and the first connecting piece promotes the rotation of the first connecting piece and pushes the first end of the handle after being pressed to the unfolded position of the handle. The potential energy storage member can be a torsional spring arranged between the first connecting piece and the energy storage mechanism.

[0009] Further, the energy storage mechanism is directly connected or indirectly connected with the second connecting piece.

[0010] Further, it further comprises a base body, a through hole is arranged on the base body, the handle can be stretched out of the through hole of the base body, the first connecting piece is a first connecting rod hinged on the base body, and the second connecting piece is a second connecting rod hinged on the base body.

[0011] Further, the first connecting rod and the second connecting rod are hinged with an intermediate connecting rod, a first elastic reset element is arranged between the intermediate connecting rod and the base body, and the energy storage mechanism is hinged with the intermediate connecting rod.

[0012] Further, the blocking mechanism comprises a swing arm rotatably arranged on the base body, and a third elastic reset element is arranged between the swing arm and the base body to facilitate the swing arm to return to the initial position, and the swing arm movement track and the second connecting rod movement track have a track intersection range, and the two are restricted or driven by each other in the track intersection range.

[0013] Further, the second connecting rod of the handle in the initial hidden position and the unlocking position is outside the track intersection range of the swing arm, that is, the initial hidden position is beyond the track intersection range, so that the handle can be quickly reset, and the second connecting rod in the unlocking position is also beyond the track intersection range, so that the unlocking is more labor-saving.

[0014] Further, the blocking mechanism further comprises a limiting lock piece, the first end of the handle is pressed to drive the limiting lock piece to rotate and block the swing arm, and the swing arm blocked by the limiting lock piece is in the track intersection range, so that the second connecting rod is limited by the swing arm.

[0015] Further, the limiting lock piece is rotatably connected to the base body, and a third elastic reset element is arranged between the limiting lock piece and the base body to facilitate the limiting lock piece to return, and the first end of the handle after being pressed facilitates the limiting lock piece to move close to the swing arm to lock the swing arm, and the limiting lock piece after returning moves away from the swing arm so as not to limit the swing arm.

[0016] Further, the swing arm is connected with a damping structure for delayed reset.

[0017] Further, the base body is further provided with a cable, and the cable is connected with a cable swing block, a fourth elastic reset element is arranged between the cable swing block and the base body, the fourth elastic reset element can be but is not limited to a torsion spring, during the process that the handle in the unfolded position is pulled up to the unlocking position, the second connecting rod hooks the cable swing block and drives the cable to move, the second end of the handle is provided with a sliding groove, and the second connecting rod is provided with a sliding column sliding in the sliding groove.

[0018] Advantages:

[0019] (1) The flat-out handle of the present application is a mechanical structure, and the initial hidden position, pressing position, unfolded position and unlocking position of the handle can be converted without additional electrical elements, thereby saving cost.

[0020] (2) After the first end of the handle is pressed, the second end is limited, the first end of the handle adopts a force storage mode to facilitate the first end of the handle to unfold, thereby realizing the unfolding of the handle, and the response is fast.

[0021] (3) The present application adopts four-bar linkage mechanism (first connecting rod, second connecting rod and intermediate connecting rod) to realize the connection of handle and base body, through pressing and pulling the second connecting rod, the second connecting rod is restricted by the swing arm, and the swing arm is restricted by the limiting lock piece, so that the second end of the handle is lifted to unfold the handle, and the energy storage mechanism is linked with the second connecting rod, the first end of the handle is linked with the limiting lock piece, and each part is matched or restricted in the whole process;

[0022] (4) The second connecting rod of the handle in the initial hidden position and the unlocking position is outside the trajectory intersection range of the swing arm, and the second connecting rod of the handle in the pressing position and the unfolding position is inside the trajectory intersection range of the swing arm, that is, the working principle of separation-interference-separation is adopted between the roller of the second connecting rod and the swing arm, the unfolding of the handle is realized, and the return of the handle is not affected, and the handle has good overall functionality;

[0023] (5) The swing arm has three functional parts, the first functional part is the first matching functional part X which is mutually restricted or mutually transmitted with the roller of the second connecting rod, the second functional part is the second matching functional part Y which is matched with the damping mechanism, and the third functional part is the third matching functional part Z which is matched with the limiting lock piece, the same structure realizes three functions, and is ingenious and integrated. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Figure 1 The four state diagrams of the flat-out handle of the present application;

[0026] Figure 2 The internal structure diagram of the flat-out handle of the present application in the initial hidden position;

[0027] Figure 3 The front view of the flat-out handle of the present application in the initial hidden position (hidden base body and sealing strip);

[0028] Figure 4 The back view of the flat-out handle of the present application in the initial hidden position (hidden base body and sealing strip);

[0029] Figure 5 The perspective view of the flat-out handle of the present application in the initial hidden position (hidden base body and sealing strip);

[0030] Figure 6Front view of the flat-out handle of the present application in the pressed state (hidden base and sealing strip);

[0031] Figure 7 Front view of the flat-out handle of the present application in the pressed state (hidden base and sealing strip);

[0032] Figure 8 Front view of the flat-out handle of the present application in the pressed state (hidden base and sealing strip);

[0033] Figure 9 Front view of the flat-out handle of the present application in the pressed state (hidden base and sealing strip);

[0034] Figure 10 Front view of the flat-out handle of the present application in the pressed state (hidden base and sealing strip);

[0035] Figure 11 Front view of the flat-out handle of the present application in the pressed state (hidden base and sealing strip);

[0036] Figure 12 Structure diagram of the swing arm;

[0037] Figure 13 Movement relationship diagram of the swing arm and the roller of the second connecting rod.

[0038] Wherein, 1, base, 2, handle, 21, first end, 22, second end, 23, sliding groove, 3, energy storage mechanism, 4, first connecting rod, 5, second connecting rod, 51, sliding column, 52, roller, 6, swing arm, 7, limit lock piece, 8, damping structure, 9, cable, 91, cable swing block, 10, intermediate connecting rod. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative in nature and by no means as any limitation to the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative work are within the scope of protection of the present application.

[0040] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0041] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application unless specifically so stated. It is to be understood that the drawings are not necessarily to scale of the various parts of the device shown therein. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail in order to avoid obscuring the present application. In each instance, the techniques, methods, and devices known to those of ordinary skill in the relevant art are deemed to be incorporated by reference. In all examples shown and discussed herein, any specific value is to be interpreted as illustrative only and not as a limitation. Thus, other examples of the example embodiments can have different values. It is noted that like references and designations can indicate like items in the drawings, and once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0042] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by orientation words such as "front, back, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without the opposite indication, these orientation words do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application. The orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0043] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "top", "bottom", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, then a dependent "above" or "upper" becomes "below" or "lower" respectively. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The terms "first", "second", "third", etc. as used herein are used as identifiers to describe one element from another element that has the same or similar function or structure. The terms "first", "second", "third", etc. are not used to limit the scope of the present application.

[0044] In addition, it should be noted that the use of "first", "second", etc. words to define parts, only for the convenience of the corresponding parts, as there is no declaration, the above words have no special meaning, therefore can not be understood as limiting the scope of the present application.

[0045] The flat-out handle of the present application has four working positions, such as Figure 1 , A position is the initial hidden position, B position is the pressing position, C position is the unfolded position, and D position is the handle unlocking position.

[0046] As Figures 1-11 , a flat-out handle of a vehicle door, comprising a base body 1, a handle 2, a blocking mechanism and an energy storage mechanism 3, the base body 1 is provided with a through hole, the edge of the through hole is provided with a sealing strip, the handle 2 can be extended from the through hole of the base body 1, the handle 2 is connected with a first connecting piece and a second connecting piece, the first connecting piece is connected with the first end 21 of the handle 2, and the second connecting piece is connected with the second end 22 of the handle 2, the present application adopts a four-bar linkage mechanism, and the specific structure is that the first connecting piece is a first connecting rod 4 hinged on the base body 1, the hinging position of the first connecting rod 4 is position O shown in the figure, the second connecting piece is a second connecting rod 5 hinged on the base body 1, the hinging position of the second connecting rod 5 is position P shown in the figure, a middle connecting rod 10 is hinged between the first connecting rod 4 and the second connecting rod 5, a first elastic reset element is arranged between the middle connecting rod 10 and the base body 1, and the first elastic reset element can be selected but is not limited to a torsion spring.

[0047] The blocking mechanism is used for blocking the second connecting piece to make it temporarily unable to reset after the first end 21 of the handle 2 in the initial hidden position is pressed inward and the second connecting piece is pulled by the second end 22 of the handle 2.

[0048] The blocking mechanism comprises a swing arm 6 rotatably arranged on the base 1, and a second elastic reset element arranged between the swing arm 6 and the base 1 for urging the swing arm 6 to return to the initial position. The second elastic reset element can be selected from, but is not limited to, a torsion spring, and the torsion spring can always return the swing arm to the initial position regardless of the clockwise or counterclockwise rotation of the swing arm, that is, the torsion spring has a bidirectional reset function. The swing arm 6 has a trajectory intersection range with the movement trajectory of the second connecting rod 5, and the two are mutually restricted or driven in the trajectory intersection range. The second connecting rod 5 of the handle 2 in the initial hidden position and the unlocking position is outside the trajectory intersection range of the swing arm 6. In this way, when the second connecting rod 5 passes through the trajectory intersection range of the swing arm 6, the two are separated from each other, facilitating the unlocking or reset of the four-bar linkage mechanism. The swing arm 6 is further connected with a damping structure 8 for delayed reset of the swing arm 6, and the damping structure 8 can be a conventional damper.

[0049] The blocking mechanism further comprises a limiting lock 7, which is driven to rotate by the first end 21 of the handle 2 being pressed and blocks the swing arm 6, and the swing arm 6 blocked by the limiting lock 7 is in the trajectory intersection range, so that the second connecting rod 5 is limited by the swing arm 6. The second connecting rod 5 is rotatably connected with a roller 52 for cooperation with the swing arm 6. The limiting lock 7 can be controlled independently. In the present application, the limiting lock 7 is rotatably connected to the base 1, and a third elastic reset element is arranged between the limiting lock 7 and the base 1 for urging the limiting lock 7 to return. The first end 21 of the handle 2 being pressed urges the limiting lock 7 to move close to the swing arm 6 to lock the swing arm 6, and the limiting lock 7 after reset moves away from the swing arm 6 so as not to limit the movement of the swing arm 6.

[0050] A potential energy storage element is arranged between the first connecting element and the energy storage mechanism 3 for urging the two to move close to each other. The energy storage mechanism 3 is limited after moving away from the first connecting element, so that the potential energy generated between the energy storage mechanism 3 and the first connecting element urges the first connecting element to rotate and push the first end 21 of the handle 2 pressed out to the unfolded position of the handle 2. The energy storage element can be selected from, but is not limited to, a torsion spring.

[0051] The energy storage mechanism 3 can be controlled independently. In the present application, the energy storage mechanism 3 is directly or indirectly connected with the second connecting element to realize linkage. As a preferred embodiment of the present application, the energy storage mechanism 3 is hingedly connected with the intermediate connecting rod 10 to realize linkage.

[0052] The base 1 is further provided with a cable 9, and the cable 9 is connected with a cable swing block 91. A fourth elastic reset element is arranged between the cable swing block 91 and the base. During the process of lifting the handle 2 in the unfolded position to the unlocking position, the second connecting rod 5 hooks the cable swing block 91 and drives the cable 9 to move. The second end 22 of the handle 2 is provided with a sliding groove 23, and the second connecting rod 5 is provided with a sliding column 51 sliding in the sliding groove 23.

[0053] As Figure 12, the swing arm 6 has three functional parts, the first functional part is the first matching functional part X which is restricted or transmitted with the roller 52 of the second connecting rod 5, the second functional part is the second matching functional part Y which is matched with the damping mechanism, and the third functional part is the third matching functional part Z which is matched with the limiting lock 7, the same structure realizes three functions, and the structure is ingenious and integrated.

[0054] As shown in Figure 13 , the solid line position is the initial position a of the swing arm 6, the dotted line positions b and c are respectively the first boundary position and the second boundary position of the swing arm 6 and the track intersection range of the roller 52, and the double-dot chain line position d is the position of the swing arm 6 limiting the roller 52 after the handle 2 is pressed, and the shadow part in the figure is the track intersection range of the roller 52 of the second connecting rod 5 and the swing arm 6.

[0055] Working principle:

[0056] Press the handle: when the handle 2 is in the initial hidden position as shown in Figures 3-5 , press the first end 21 of the handle 2, and the second end 22 of the handle 2 is driven to be raised, as shown in Figures 6-7 , the second connecting rod 5 rotates and drives the swing arm 6 to rotate, the first end 21 of the handle 2 is pressed, the first end 21 of the handle 2 drives the limiting lock 7 to rotate, the swing arm 6 rotates counterclockwise under the drive of the second connecting rod 5 and abuts against the limiting lock 7, at this time, the limiting lock 7 blocks the second connecting rod 5 so that it cannot be reset, the second end 22 of the handle 2 remains in the raised state, and in the process of just starting to raise the second end 22 of the handle 2 and drive the second connecting rod 5 to rotate, the second connecting rod 5 drives the energy storage mechanism 3 to rotate away from the first connecting rod 4 through the intermediate connecting rod 10, in the case that the second connecting rod 5 cannot be reset, the energy storage mechanism 3 also cannot be reset, at this time, the first end 21 of the handle 2 is not pressed, and the first connecting rod 4 is not limited to rotate to the energy storage mechanism 3 under the action of the potential energy storage member, thereby driving the first end 21 of the handle 2 to unfold outward, and the handle 2 reaches the unfolded position as shown in Figures 8-9 , after the first end 21 of the handle 2 is unfolded, the limiting lock 7 is no longer limited by the first end 21 of the handle 2, and the limiting lock 7 is reset;

[0057] Handle unlocking: Since handle 2 is in the extended position, the roller 52 of the second link 5 and the swing arm 6 are still in the intersecting range of their mutually constraining trajectories. Because the swing arm 6 is connected to the damping mechanism 8, if the intermediate link 10 wants to reset the first link 4 and the second link 5, it must overcome the damping force of the damping mechanism 9. Therefore, handle 2 in the extended position will not immediately reset; this state can be maintained for a certain period (e.g., several seconds). Without manual intervention, after handle 2 remains in the extended position for a certain time, the intermediate link 10 will drive the first link 4 and the second link 5 to overcome the damping force and reset, and handle 2 will return to its initial hidden position. However, if a person pulls down handle 2 in the extended position at this time, handle 2 will enter the... Figures 9-10 As shown in the unlocking position, during this process, the sliding pin 51 of the second link 5 slides in the sliding groove 23 of the second end 22 of the handle 2, thereby rotating the second link 5 and lifting the second end 22 of the handle 2. The second link 5 rotates during this process and hooks the cable swing block 91 to move, thereby pulling the cable 9 and unlocking. During this process, the roller 52 of the second link 5 will drive the swing arm 6 to continue to rotate counterclockwise and cross the intersection range of the two trajectories. That is, the swing arm 6 first rotates to the first boundary position b and then returns to the initial position a.

[0058] Handle reset: After unlocking, the middle link 10 drives the first link 4 and the second link 5 to reset under the action of the first elastic reset element. During the reset process, the second link 5 first pushes the swing arm 6 to make the swing arm 6 rotate clockwise. When the swing arm passes the second boundary position c, the roller 52 disengages from the swing arm 6, and then the swing arm 6 and the second link 5 are both reset.

[0059] Figure 11 The front end of the cable should cooperate with the swing arm, and the cable should be pulled. The figure only shows the rotation of the cable swing block, but the cable is actually being pulled.

[0060] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flush-type door handle, characterized by : comprising: a handle (2), the handle (2) is connected with a first connecting piece and a second connecting piece, the first connecting piece is connected with a first end (21) of the handle (2), the second connecting piece is connected with a second end (22) of the handle (2), a blocking mechanism, the blocking mechanism is used for blocking the second connecting piece to make it temporarily unable to reset after the first end (21) of the handle (2) in the initial hidden position is pressed inward and the second connecting piece is pulled by the second end (22) of the handle (2), an energy storage mechanism (3), a potential energy storage member is arranged between the first connecting piece and the energy storage mechanism (3) to make them approach each other, the energy storage mechanism (3) is limited after moving away from the first connecting piece, so that the potential energy generated between the energy storage mechanism (3) and the first connecting piece promotes the rotation of the first connecting piece and pushes the pressed first end (21) of the handle (2) to the unfolded position of the handle (2); further comprising a base body (1), the base body (1) is provided with a through hole, the handle (2) can be stretched out of the through hole of the base body (1), the first connecting piece is a first connecting rod (4) hinged on the base body (1), and the second connecting piece is a second connecting rod (5) hinged on the base body (1); the first connecting rod (4) and the second connecting rod (5) are hinged with an intermediate connecting rod (10), a first elastic reset element is arranged between the intermediate connecting rod (10) and the base body (1), and the energy storage mechanism (3) is hinged with the intermediate connecting rod (10); the blocking mechanism comprises a swing arm (6) rotatably arranged on the base body (1), a second elastic reset element is arranged between the swing arm (6) and the base body (1) to promote the swing arm (6) to return to the initial position, the swing arm (6) has a trajectory intersection range with the movement trajectory of the second connecting rod (5), and the two restrict or drive each other in the trajectory intersection range; the second connecting rod (5) of the handle (2) in the initial hidden position and the unlocking position is outside the trajectory intersection range of the swing arm (6); the blocking mechanism further comprises a limiting lock piece (7), the first end (21) of the handle (2) pressed downward drives the limiting lock piece (7) to rotate and block the swing arm (6), and the swing arm (6) blocked by the limiting lock piece (7) is in the trajectory intersection range, so that the second connecting rod (5) is limited by the swing arm (6); the limiting lock piece (7) is rotatably connected on the base body (1), a third elastic reset element is arranged between the limiting lock piece (7) and the base body (1) to promote the reset of the limiting lock piece (7), and the first end (21) of the handle (2) pressed downward promotes the limiting lock piece (7) to approach the swing arm (6) to lock the swing arm (6), and the limiting lock piece (7) after reset moves away from the swing arm (6) so as not to limit the swing arm (6). Press the first end (21) of the handle (2), the second end (22) of the handle (2) is driven to be raised, the second connecting rod (5) is rotated and drives the swing arm (6) to rotate, after the first end (21) of the handle (2) is pressed, the first end (21) of the handle (2) drives the limiting lock (7) to rotate, the swing arm (6) is counterclockwise rotated under the drive of the second connecting rod (5) and abuts against the limiting lock (7), the limiting lock (7) blocks the second connecting rod (5) so that it cannot be reset, the second end (22) of the handle (2) remains in the state of being raised, and in the process of the second end (22) of the handle (2) being raised and driving the second connecting rod (5) to rotate, the second connecting rod (5) pulls the energy storage mechanism (3) to rotate away from the first connecting rod (4) through the intermediate connecting rod (10), in the case that the second connecting rod (5) cannot be reset, the energy storage mechanism (3) also cannot be reset, at this time, the first end (21) of the handle (2) is not pressed any more, the first connecting rod (4) is not restricted and rotates to the energy storage mechanism (3) under the action of the potential energy storage member, thereby driving the first end (21) of the handle (2) to unfold outward.

2. A flush-type door handle according to claim 1, wherein: The energy storage mechanism (3) is directly connected or indirectly connected with the second connecting member.

3. A flush-type door handle according to claim 1, wherein: The swing arm (6) is connected with the damping structure (8) for delaying the reset.

4. A flush handle as defined in claim 1, wherein: The base body (1) is further provided with a cable (9), the cable (9) is connected with a cable swing block (91), the fourth elastic reset element is arranged between the cable swing block (91) and the base body, in the process of the handle (2) in the unfolded position being pulled to the unlocking position, the second connecting rod (5) hooks the cable swing block (91) and drives the cable (9) to move, the second end (22) of the handle (2) is provided with a sliding groove (23), and the second connecting rod (5) is provided with a sliding column (51) sliding in the sliding groove (23). The energy storage mechanism (3) is directly connected or indirectly connected with the second connecting member. The swing arm (6) is connected with the damping structure (8) for delaying the reset. The base body (1) is further provided with a cable (9), the cable (9) is connected with a cable swing block (91), the fourth elastic reset element is arranged between the cable swing block (91) and the base body, in the process of the handle (2) in the unfolded position being pulled to the unlocking position, the second connecting rod (5) hooks the cable swing block (91) and drives the cable (9) to move, the second end (22) of the handle (2) is provided with a sliding groove (23), and the second connecting rod (5) is provided with a sliding column (51) sliding in the sliding groove (23).

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