Locking device, tail door assembly and vehicle

Abstract

The utility model relates to the technical field of vehicle parts, aims to solve the technical problem that some known lock knob structures are inconvenient to operate, and provides a locking device, a tail door assembly and a vehicle. The locking device comprises a locking piece, an operating piece and a limiting piece. The locking piece has a locking state and an unlocking state. The operating piece comprises an operating part and a matching part. One end of the matching part is connected to the operation part, the other end of the matching part is movably connected with the locking piece, and the operation piece is configured to be stressed to drive the locking piece to move, so that the locking piece is switched between a locking state and an unlocking state. The limiting piece is located on the side, away from the operation part, of the locking piece, the limiting piece is movably connected with the locking piece, and the limiting piece is used for limiting the moving distance of the matching part along the locking piece so as to prevent the matching part from being disengaged from the locking piece in the moving process. The locking device has the beneficial effect that the operation convenience of the locking device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle components, and in particular to a locking device, a tailgate assembly and a vehicle. Background Art

[0002] In some known lock button structures on vehicles, the operating part and the lock button part are usually designed as a detachable matching structure. After the operating part is matched with the lock button part, during the actual locking and unlocking operation, the operating part is prone to detachment from the lock button part, making the operation more inconvenient. Utility Model Content

[0003] The present application provides a locking device, a tailgate assembly and a vehicle to solve the technical problem that some known lock button structures are inconvenient to operate.

[0004] The present application provides a locking device, comprising a locking member, an operating member and a limiting member. The locking member has a locked state and an unlocked state. The operating member comprises an operating portion and a matching portion, one end of the matching portion is connected to the operating portion, and the other end of the matching portion is movably connected to the locking member, and the operating member is configured to be subjected to force to drive the locking member to move, so that the locking member switches between the locked state and the unlocked state. The limiting member is located on the side of the locking member away from the operating portion, and the limiting member is movably connected to the locking member. The limiting member is used to limit the movable distance of the matching portion along the locking member to prevent the matching portion from separating from the locking member during the movement.

[0005] During operation of the locking device of the present application, the engaging portion of the operating member engages with the locking member, thereby facilitating the locking member to move through the operating member. During this process, the limiting member can limit the movable distance of the engaging portion along the locking member, thereby preventing the engaging portion from disengaging from the locking member during the process of driving the locking member to switch states, thereby ensuring the stability of the operating member during operation and improving the stability of the state switching of the locking member. At the same time, the limiting member is movably connected to the locking member. During operation of the locking device, the limiting member is connected to the locking member, which can reduce the possibility of the limiting member and the locking member being disengaged, thereby failing to limit the engaging portion, and further ensuring the reliability of the operating member driving the locking member to move.

[0006] In one possible implementation:

[0007] The locking member defines a mating hole, and the mating portion is movably disposed within the mating hole and is capable of driving the locking member to rotate axially about the mating hole to switch between the locked state and the unlocked state. The limiting member is configured to limit the mating portion axially along the mating hole to prevent the mating portion from falling out of the mating hole during movement of the mating portion.

[0008] In one possible implementation:

[0009] The operating member further includes an engaging portion connected to an end of the mating portion facing away from the operating member, the engaging portion engaging the locking member, and the mating portion defining a deformation space, the deformation space opening being located on a side of the mating portion facing away from the operating member. The limiting member includes an abutting portion configured to extend into the deformation space to limit deformation of the mating portion and maintain engagement of the engaging portion with the locking member, thereby limiting the mating portion in the axial direction of the mating hole.

[0010] In one possible implementation:

[0011] The locking portion includes two snap structures, which are respectively connected to one end of the matching portion away from the operating portion and extend in a direction away from the deformation space. The two snap structures are configured to be locked to the edge of the locking member near the matching hole.

[0012] In one possible implementation:

[0013] A first limiting portion is provided on the outer surface of the mating portion, and a second limiting portion is provided on the hole surface of the mating hole. The first limiting portion and the second limiting portion are limitedly matched to limit the circumferential rotation of the mating portion relative to the mating hole along the mating hole.

[0014] In one possible implementation:

[0015] The first limiting portion is a matching protrusion convexly provided on the outer surface of the matching portion, the matching hole is a matching groove formed by being concave from the hole surface of the matching hole, and the matching protrusion is configured to be provided in the matching groove.

[0016] In one possible implementation:

[0017] One side of the limiting member is rotatably connected to one side of the locking member, and the other side of the limiting member is detachably connected to the other side of the locking member.

[0018] The present application discloses a tailgate assembly comprising a tailgate trim, a cover plate, and the aforementioned locking device. The cover plate is detachably connected to the tailgate trim. The locking device is used to lock or unlock the cover plate on the tailgate trim.

[0019] In one possible implementation:

[0020] The operating member is configured to drive the locking member to rotate to switch between a locked state and an unlocked state. The locking member is provided with a limiting protrusion. The cover plate is provided with a first positioning portion and a second positioning portion, the first positioning portion and the second positioning portion being spaced apart along the rotation direction of the limiting protrusion, and the limiting protrusion is located between the first positioning portion and the second positioning portion. When the locking member is in the locked state, the limiting protrusion abuts the first positioning portion, and when the locking member is in the unlocked state, the limiting protrusion abuts the second positioning portion.

[0021] The present application also provides a vehicle, comprising the aforementioned locking device and / or the aforementioned tailgate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic structural diagram of a vehicle according to an embodiment of the present application.

[0024] Figure 2 This is a structural schematic diagram of a tailgate assembly according to an embodiment of the present application.

[0025] Figure 3 This is a cross-sectional view of a tailgate assembly at a locking device according to an embodiment of the present application.

[0026] Figure 4 This is a schematic diagram of the partial structure of a tailgate assembly according to an embodiment of the present application, wherein the locking member is in a locked state.

[0027] Figure 5 This is a schematic diagram of the partial structure of a tailgate assembly according to an embodiment of the present application, wherein the locking member is in an unlocked state.

[0028] Figure 6 Schematic diagram of the exploded structure of a tailgate assembly according to one embodiment of the present application.

[0029] Figure 7 Schematic diagram of a partially exploded structure of a tailgate assembly according to an embodiment of the present application.

[0030] Figure 8 Schematic diagram of the explosion structure of a locking device according to an embodiment of the present application.

[0031] Figure 9 This is a schematic diagram of the exploded structure of the locking device according to one embodiment of the present application from another perspective.

[0032] Figure 10 This is a structural diagram of a locking member and a limiting member according to an embodiment of the present application, in which the limiting member is deployed relative to the locking member.

[0033] Figure 11 This is a structural diagram of a locking member and a limiting member according to an embodiment of the present application, in which the limiting member is buckled with the locking member.

[0034] Figure 12 This is a schematic structural diagram of a locking member and a limiting member according to another embodiment of the present application.

[0035] Figure 13 This is a side view of a locking member and a limiting member according to another embodiment of the present application.

[0036] Description of main component symbols:

[0037] Locking device 100

[0038] Locking member 10

[0039] The second limiting portion 11

[0040] Locking body 12

[0041] Second clamping portion 13

[0042] Lock tongue 14

[0043] Pivot portion 15

[0044] Limiting protrusion 16

[0045] Clamping flange 17

[0046] Operating element 20

[0047] Operation unit 21

[0048] Operation block 211

[0049] Clamping plate 212

[0050] Fitting portion 22

[0051] Cantilever 221

[0052] Connecting portion 222

[0053] Engaging portion 23

[0054] Buckle structure 231

[0055] The first limiting portion 24

[0056] Limiter 30

[0057] Limiting plate 31

[0058] Abutting portion 32

[0059] Buckle structure 33

[0060] Pivot 34

[0061] Matching reinforcement 35

[0062] Connecting strip 40

[0063] Rear door assembly 200

[0064] Tailgate trim 201

[0065] First Guide 2011

[0066] Second Guide 2012

[0067] Depression 2013

[0068] Trim body 2014

[0069] Cover 202

[0070] First positioning portion 2021

[0071] Second positioning portion 2022

[0072] Clamping protrusion 2023

[0073] Cover body 2024

[0074] Sidewall 2025

[0075] Bottom wall 2026

[0076] First clamping portion 2027

[0077] Vehicle 300

[0078] Car body 301

[0079] Matching hole K1

[0080] Snap-fit ​​hole K2

[0081] Card hole K3

[0082] Locking hole K4

[0083] First hole section K41

[0084] Second hole section K42

[0085] Mounting hole K5

[0086] Deformation space Q1

[0087] Clamping space Q2

[0088] First positioning groove C1

[0089] Second positioning groove C2

[0090] Pivot slot C3

[0091] Clamping slot C4

[0092] The first limiting groove C5

[0093] Second limiting groove C6

[0094] Storage tank C7

[0095] Storage tank C8

[0096] The third limiting groove C9

[0097] First guide surface P1

[0098] Second guide surface P2

[0099] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0100] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the 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.

[0101] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered therein. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be an element centered therein. When an element is considered to be "set on" another element, it may be directly set on the other element or there may also be an element centered therein. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0102] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "or / and" as used herein includes any and all combinations of one or more of the relevant listed items.

[0103] Some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features of the embodiments can be combined with each other.

[0104] See also Figure 1and Figure 2 This embodiment provides a vehicle 300 including a vehicle body 301 and a rear door assembly 200 .

[0105] See also Figure 2 The rear door assembly 200 includes a tailgate trim panel 201, a cover panel 202, and a locking device 100. The cover panel 202 is detachably connected to the tailgate trim panel 201. The locking device 100 is used to lock or unlock the cover panel 202 on the tailgate trim panel 201.

[0106] See also Figures 3 to 5 The locking device 100 includes a locking member 10, an operating member 20 and a limiting member 30. The locking member 10 has a locked state and an unlocked state. Figure 4 ), the locking member 10 locks the cover plate 202 to the tailgate trim 201. When the locking member 10 is in the unlocked state (see Figure 5 ), the locking member 10 unlocks the cover plate 202 from the tailgate trim 201, so that the cover plate 202 can be removed from the tailgate trim 201. The operating member 20 includes an operating portion 21 and a matching portion 22. One end of the matching portion 22 is connected to the operating portion 21, and the other end of the matching portion 22 is movably connected to the locking member 10. The operating member 20 is configured to receive force to drive the locking member 10 to move, so that the locking member 10 switches between a locked state and an unlocked state. The limiting member 30 is located on the side of the locking member 10 away from the operating portion 21. The limiting member 30 is movably connected to the locking member 10 and is used to limit the movable distance of the matching portion 22 along the locking member 10 to prevent the matching portion 22 from disengaging from the locking member 10 during the movable process.

[0107] According to the locking device 100 of the present application, during operation, the engaging portion 22 of the operating member 20 engages with the locking member 10, thereby facilitating the movement of the locking member 10 by the operating member 20. During this process, the limiting member 30 can limit the movable distance of the engaging portion 22 along the locking member 10, thereby preventing the engaging portion 22 from disengaging from the locking member 10 during the process of driving the locking member 10 to switch states, thereby ensuring the stability of the operating member 20 during operation and improving the state switching stability of the locking member 10. At the same time, the limiting member 30 is movably connected to the locking member 10. During the operation of the locking device 100, the limiting member 30 is connected to the locking member 10, which can reduce the possibility of the limiting member 30 disengaging from the locking member 10 and thus being unable to limit the engaging portion 22, further ensuring the reliability of the operating member 20 driving the locking member 10 to move.

[0108] In some embodiments, see Figure 3The locking member 10 defines a mating hole K1. The mating portion 22 is movably disposed within the mating hole K1 and is capable of driving the locking member 10 to rotate axially about the mating hole K1. The stopper 30 is configured to position the mating portion 22 axially about the mating hole K1 to prevent the mating portion 22 from falling out of the mating hole K1 during movement.

[0109] In other embodiments, the locking member 10 may have a protrusion, and the mating portion 22 may have a hole. Through the cooperation of the hole and protrusion, the operating member 20 can also drive the locking member 10 to move. Alternatively, the locking member 10 and the mating portion 22 can be movably connected through a snap fit. Therefore, there are many ways to achieve the connection between the locking member 10 and the mating portion 22, which are not specifically limited in this embodiment.

[0110] See also Figure 6 The tailgate trim panel 201 includes a trim body 2014 and a recessed portion 2013. The edge of the recessed portion 2013 is connected to the trim body 2014 and is recessed away from the cover panel 202. The recessed portion 2013 defines a receiving slot C8. The receiving slot C8 can be configured to accommodate a foldable warning triangle or other items. The cover panel 202 removably covers the opening of the recessed portion 2013.

[0111] In some embodiments, a snap-in hole K3 is provided at the connection between the recessed portion 2013 and the decorative plate body 2014. A first snap-in portion 2027 is provided on the edge of the cover plate 202. The first snap-in portion 2027 is detachably engaged with the snap-in hole K3. In other embodiments, the snap-in hole K3 may also be provided on the decorative plate body 2014.

[0112] In some embodiments, see Figure 7 The bottom wall 2026 of the recessed portion 2013 defines a locking hole K4. When the locking member 10 is in the unlocked state, it can be moved axially relative to the locking hole K4. The operator can use the operating portion 21 to move the locking device 100 until the end of the locking member 10 facing away from the operating portion 21 is located on the side of the tailgate trim 201 facing away from the cover plate 202. The operator then moves the locking member 10 to the locked state, where it abuts the side of the tailgate trim 201 facing away from the cover plate 202, thereby preventing the cover plate 202 from separating from the tailgate trim 201.

[0113] In some embodiments, see Figure 7The locking hole K4 includes a first hole segment K41 and a second hole segment K42. The second hole segment K42 is connected to one side of the first hole segment K41. The locking member 10 includes a locking body 12 and a locking tongue 14. The orthographic projection of the locking body 12 on the tailgate trim 201 is located inside the first hole segment K41, and the locking tongue 14 is connected to the edge of the locking body 12. When the locking member 10 is unlocked, the orthographic projection of the locking body 12 on the tailgate trim 201 is located inside the second hole segment K42. When the locking member 10 is locked, at least part of the orthographic projection of the locking body 12 on the tailgate trim 201 is located outside the second hole segment K42. In this embodiment, the locking member 10 switches between the unlocked state and the locked state by radial rotation around the matching hole K1. In other embodiments, a snap-fit ​​structure may be provided at the end of the locking member 10 away from the operating portion 21, and the snap-fit ​​structure extends to the side of the tailgate trim 201 away from the cover plate 202 to be snapped with the tailgate trim 201. In this way, the locking member 10 can switch between the locked state and the unlocked state by moving axially along the matching hole K1.

[0114] In some embodiments, there are two second hole segments K42, each connected to opposite sides of the first hole segment K41. There are two locking tongues 14, each connected to opposite sides of the locking body 12. This allows the locking member 10 to simultaneously abut the side of the tailgate trim 201 facing away from the cover 202, improving the locking effect.

[0115] In some embodiments, see Figure 6 The cover plate 202 includes a cover plate body 2024, side walls 2025, and a bottom wall 2026. The side walls 2025 are connected to the cover plate body 2024 and extend toward the tailgate trim 201. The bottom wall 2026 is connected to the end of the side walls 2025 facing away from the cover plate body 2024. The bottom wall 2026 is arranged axially opposite the locking hole K4. The bottom wall 2026 defines a mounting hole K5. The locking member 10 is inserted into the mounting hole K5. A clamping space Q2 is defined between the locking member 10 and the operating portion 21 of the operating member 20. The edge of the cover plate 202 near the mounting hole K5 is clamped in the clamping space Q2 to mount the locking device 100 on the cover plate 202, thereby facilitating the removal of the locking device 100 from the tailgate trim 201 along with the cover plate 202. The side wall 2025 and the bottom wall 2026 together provide a housing groove C7 (see Figure 3 ), the accommodating groove C7 is used to accommodate the operating part 21, thereby preventing the operating part 21 from protruding from the cover body 2024 and avoiding the problem of accidental touch of the operating part 21.

[0116] In some embodiments, see Figure 3The locking member 10 further includes a clamping flange 17. The clamping flange 17 is protruding from the edge of the locking body 12 near the mating portion 22, and a clamping groove C4 is formed between the clamping flange 17 and the locking body 12. The cover plate 202 further includes a clamping protrusion 2023, which is protruding from the bottom wall 2026 near the tailgate trim 201 and extends into the clamping groove C4. This reduces the possibility of relative movement between the locking member 10 and the cover plate 202 along the radial direction of the mating hole K1, thereby improving the installation reliability of the locking device 100 on the cover plate 202.

[0117] When it is necessary to remove the locking device 100 from the cover plate 202, the limiting member 30 is disconnected from the mating relationship with the mating portion 22, the locking member 10 and the limiting member 30 are moved out of the mating hole K1 in a direction away from the operating portion 21, and the operating member 20 is moved out of the mating hole K1 in a direction away from the clamping protrusion 2023, thereby realizing the disassembly of the locking device 100. In this way, when the locking device 100 or the cover plate 202 fails, the operating member 20, the locking member 10 and the limiting member 30 and other structures of the cover plate 202 or the locking device 100 can be replaced separately, thereby reducing maintenance costs.

[0118] In some embodiments, see Figure 7 The tailgate trim 201 further includes a first guide portion 2011 and a second guide portion 2012. The first guide portion 2011 and the second guide portion 2012 are spaced apart along the circumference of the mounting hole K5 on the side of the bottom wall 2026 facing away from the cover body 2024. The first guide portion 2011, the first hole segment K41, the second guide portion 2012, and the second hole segment K42 are sequentially distributed along the circumference of the mounting hole K5. Along the rotational direction of the locking member 10 from the unlocked state to the locked state, the first guide portion 2011 is provided with a first guide surface P1 and a first limiting groove C5. The first limiting groove C5 extends from the first guide surface P1 to the surface of the bottom wall 2026. The first guide surface P1 is used to guide one locking tongue 14 to move into the first limiting groove C5 to engage with the first limiting groove C5. The second guide portion 2012 is provided with a second guide surface P2 and a second limiting groove C6. The second limiting groove C6 extends from the second guide surface P2 to the surface of the bottom wall 2026. The second guide surface P2 is used to guide the other locking tongue 14 to move into the second limiting groove C6 to engage with the second limiting groove C6. In this way, the cooperation between the first limiting groove C5 and the second limiting groove C6 and the two locking tongues 14 can reduce the possibility of the locking member 10 disengaging from the locked state, thereby improving the locking reliability of the locking device 100. The first guide surface P1 and the second guide surface P2 can both be inclined surfaces.

[0119] In some embodiments, see Figure 7The locking member 10 also includes a limiting protrusion 16. The limiting protrusion 16 is provided on the side of the locking body 12 close to the operating portion 21. A first positioning portion 2021 and a second positioning portion 2022 are provided on the side of the cover body 2024 close to the tailgate trim 201. The first positioning portion 2021 and the second positioning portion 2022 are spaced apart along the circumference of the mounting hole K5. When the locking member 10 is in the locked state, the limiting protrusion 16 abuts against the first positioning portion 2021. When the locking member 10 is in the unlocked state, the limiting protrusion 16 abuts against the second positioning portion 2022. In this way, when the operator drives the locking member 10 to rotate through the operating member 20, when the locking member 10 abuts against one of the first positioning portion 2021 and the second positioning portion 2022, it can be confirmed that the locking member 10 has rotated into place, thereby improving the convenience of operation.

[0120] In some embodiments, see Figure 7 The first positioning portion 2021 has a first positioning groove C1 on its surface facing the second positioning portion 2022, and the second positioning portion 2022 has a second positioning groove C2 on its surface facing the first positioning portion 2021. Thus, when the locking member 10 is in the locked or unlocked state, the limiting protrusion 16 engages with the first positioning groove C1 or the second positioning groove C2, respectively, to provide a positioning function.

[0121] In other embodiments, the locking device 100 can also be used to lock and unlock between two other panels of the vehicle 300. For example, a storage structure can be provided in the vehicle 300, comprising a storage box and a cover, the cover being detachably attached to the storage box. The locking device 100 can be applied between the cover and the storage box, and securely secure the cover to the storage box when the cover is attached to the storage box.

[0122] In some embodiments, see Figure 8 and Figure 9 The operating member 20 also includes a locking portion 23. The locking portion 23 is connected to the end of the matching portion 22 away from the operating portion 21, and the locking portion 23 is engaged with the locking member 10. The locking portion 23 can be engaged with the locking member 10 by extending out of the matching hole K1 and abutting against the side of the locking member 10 away from the operating portion 21. The matching portion 22 is provided with a deformation space Q1, and the opening of the deformation space Q1 is located on the side of the matching portion 22 away from the operating portion 21. The limiting member 30 includes a supporting portion 32, which is configured to extend into the deformation space Q1 to limit the deformation of the matching portion 22 and keep the locking portion 23 engaged with the locking member 10, thereby limiting the matching portion 22 along the axial direction of the matching hole K1. The opening of the deformation space Q1 can be provided on the end face of the matching portion 22 to facilitate cooperation with the supporting portion 32. In other embodiments, the opening of the deformation space Q1 can also be provided on the side of the matching portion 22.

[0123] Thus, during the mating process between the operating member 20 and the locking member 10, the engaging portion 22 of the operating member 20 is inserted into the mating hole K1. The mating hole K1 causes the engaging portion 22 to deform and compress inwardly of the deformation space Q1, allowing the engaging portion 23 to be accommodated within the mating hole K1. As the operating member 20 moves toward the limiting member 30, the engaging portion 23 extends to the side of the locking member 10 facing away from the operating portion 21. Thereafter, the engaging portion 23 is no longer limited by the mating hole K1 and engages with the side of the locking member 10 facing away from the operating portion 21, remaining engaged with the edge of the mating hole K1. At the same time, the supporting portion 32 extends from the opening into the deformation space Q1, thereby supporting the matching portion 22 in the deformation space Q1, so that when the operating member 20 drives the locking member 10 to move, the matching portion 22 cannot be deformed, and the engaging portion 23 remains engaged with the matching hole K1, thereby preventing the engaging portion 23 from entering the matching hole K1, which plays a role in limiting the matching portion 22 from moving in the direction away from the limiting member 30, thereby improving the operator's user experience.

[0124] In other embodiments, a stud may be provided in the mating portion 22 and a nut may be provided as the limiting member 30. After the stud and the nut are threadedly engaged, the axial movement of the mating portion 22 relative to the mating hole K1 can also be limited.

[0125] In some embodiments, the limiting member 30 includes a limiting plate 31 . The abutting portion 32 is protruded from a surface of the limiting plate 31 facing the operating portion 21 .

[0126] In some embodiments, the clamping flange 17 further extends to the side of the locking body 12 proximal to the stopper 30. The stopper 30 further includes a mating rib 35. When the stopper 30 is mated with the operating portion 21, the mating rib 35 is located inside the clamping flange 17 to position the connection between the stopper 30 and the locking member 10, thereby improving the accuracy of the mating between the abutting portion 32 and the mating portion 22 in the clamping space Q2.

[0127] In some embodiments, see Figure 9 The operating portion 21 includes an operating block 211 and a clamping plate 212. The operating block 211 and the mating portion 22 are connected to opposite sides of the clamping plate 212. The operating block 211 is convenient for the operator to grasp. The area of ​​the clamping plate 212 is larger than the area of ​​the mounting hole K5. Thus, the clamping plate 212 and the locking body 12 define a clamping space Q2.

[0128] In some embodiments, see Figure 9 The matching portion 22 further includes two connecting portions 222. One connecting portion 222 is connected to one side of the two cantilevers 221, and the other connecting portion 222 is connected to the other side of the two cantilevers 221. The two connecting portions 222 and the two cantilevers 221 together enclose a deformable space Q1.

[0129] The ends of the two connecting portions 222 facing away from the operating portion 21 are each provided with a third limiting groove C9. The two third limiting grooves C9 are connected to the deformation space Q1, thereby facilitating the two cantilevers 221 to approach each other and pass through the mating hole K1. Simultaneously, after the abutting portion 32 extends into the deformation space Q1, the two opposing sides of the abutting portion 32 abut against the two cantilevers 221, respectively, and the surface of the abutting portion 32 facing away from the limiting plate 31 abuts against the bottom surfaces of the two third limiting grooves C9. Thus, under the restraining action of the abutting portion 32, the two cantilevers 221 cannot approach each other and thus cannot extend into the mating hole K1 in the direction closer to the operating portion 21.

[0130] In some embodiments, see Figure 9 The engaging portion 23 includes two snap-fit ​​structures 231, each connected to one end of the mating portion 22 facing away from the operating portion 21 and extending in a direction away from the deformation space Q1. The two snap-fit ​​structures 231 are configured to engage with the edge of the locking member 10 near the mating hole K1. As a result, when the two snap-fit ​​structures 231 approach each other under the action of the mating hole K1, they can be inserted into the mating hole K1, thereby reducing the difficulty of inserting the engaging portion 23 into the mating hole K1 while ensuring operational convenience and reliable positioning. In other embodiments, the engaging portion 23 can also be constructed as a single, integral snap-fit ​​structure connected to the edge of the end of the mating portion 22.

[0131] In some embodiments, see Figure 8 and Figure 9 The cross-section of the mating hole K1 is shaped like a special shape or polygon, while the cross-section of the mating portion 22 is similar to that of the mating hole K1. This allows the mating portion 22 to rotate the locking member 10 after it is inserted into the mating hole K1, thereby reducing the possibility of the mating portion 22 rotating within the mating hole K1 and improving the reliability of the locking device 100. Specifically, in this embodiment, the cross-section of the mating hole K1 is rectangular, and the cross-section of the mating portion 22 is also rectangular.

[0132] In some embodiments, see Figure 9 The outer surface of the mating portion 22 is provided with a first stopper 24, and the surface of the mating hole K1 is provided with a second stopper 11. The first stopper 24 and the second stopper 11 cooperate to restrict the mating portion 22 from rotating relative to the mating hole K1 along the circumferential direction of the mating hole K1. This further reduces the possibility of the mating portion 22 rotating within the mating hole K1, thereby further improving the reliability of the mating portion 22 driving the locking member 10 to rotate.

[0133] In some embodiments, there are four first stoppers 24 and four second stoppers 11. The four first stoppers 24 are disposed on the four side surfaces of the mating portion 22, and the four second stoppers 11 are disposed on the four surfaces of the mating hole K1. Specifically, the four first stoppers 24 are disposed on the surfaces of the two connecting portions 222 and the two cantilevers 221.

[0134] In some embodiments, the first limiting portion 24 is a mating protrusion protruding from the outer surface of the mating portion 22, the mating hole K1 is a mating groove formed by a concave hole surface of the mating hole K1, and the mating protrusion is configured to be disposed in the mating groove.

[0135] When the operating portion 21 is inserted into the mating hole K1, the mating protrusion simultaneously inserts into the mating groove, thereby guiding the mating of the operating member 20 and the locking member 10. As the operating member 20 drives the locking member 10 to rotate, the mating protrusions cooperate with each other to further limit the relative rotation between the operating member 20 and the locking member 10, thereby improving operational reliability.

[0136] In some embodiments, the mating groove extends along the axial direction of the mating hole K1, and the mating groove is open at one end close to the operating part 21 along its length direction, and is closed at one end away from the operating part 21 along its length direction. In this way, when the mating protrusion abuts against the groove side of the mating groove, it can limit the axial movement of the operating part 21 along the mating hole K1.

[0137] In other embodiments, the first limiting portion 24 may also be configured as a groove structure provided on the outer surface of the mating portion 22 , and the second limiting portion 11 may be configured as a protruding structure provided on the hole surface of the mating hole K1 .

[0138] In some embodiments, see Figures 10 to 13 One side of the limiting member 30 is rotatably connected to one side of the locking member 10 , and the other side of the limiting member 30 is detachably connected to the other side of the locking member 10 .

[0139] Thus, when the locking device 100 is in use, the position-limiting member 30 is connected to the locking member 10, ensuring that the position-limiting member 30 functions as a limiter. When the locking device 100 is no longer in use, the position-limiting member 30 can be disconnected from the locking member 10 to remove the locking device 100 from the cover plate 202. Furthermore, since the position-limiting member 30 remains connected to the locking member 10, problems such as loss of the position-limiting member 30 can be avoided.

[0140] In some embodiments, see Figure 10, the limiting member 30 includes a snap-fit ​​structure portion 33. The snap-fit ​​structure portion 33 is connected to the edge of the limiting plate 31. The locking member 10 includes a second snap-fit ​​portion 13, which is connected to the edge of the locking body 12 and can be arranged corresponding to the snap-fit ​​structure portion 33. The second snap-fit ​​portion 13 has a snap-fit ​​hole K2. The snap-fit ​​structure portion 33 is configured to pass through the snap-fit ​​hole K2 and snap-fit ​​with the second snap-fit ​​portion 13. In this way, a detachable connection between the limiting member 30 and the locking member 10 is achieved. In other embodiments, the limiting member 30 and the locking member 10 can also be detachably connected by structures such as pins and screws.

[0141] In some embodiments, see Figure 11 The limiting member 30 further includes a pivot 34, which is connected to the side of the limiting plate 31 facing away from the snap structure 33. The locking member 10 further includes a pivot portion 15, which is connected to the side of the locking body 12 facing away from the second snap-fit ​​portion 13. The pivot portion 15 defines a pivot groove C3, into which the pivot 34 rotatably fits. In this way, a rotational connection is achieved between the limiting member 30 and the locking member 10. In other embodiments, the limiting member 30 and the locking member 10 can also be rotatably connected via a rotating structure such as a hinge.

[0142] In some embodiments, see Figure 13 The locking device 100 further includes a connecting bar 40. The connecting bar 40 is U-shaped, and one end of the connecting bar 40 is connected to the limiting member 30. The other end of the connecting bar 40 is connected to the locking member 10. In this way, the limiting member 30 can also rotate relative to the locking member 10.

[0143] In other embodiments, there are two snap-fit ​​structures 33. There are two second snap-fitting portions 13. The two snap-fitting structures 33 are respectively connected to opposite sides of the limiting plate 31. The two second snap-fitting portions 13 are respectively connected to opposite sides of the locking body 12. In this way, a movable connection between the limiting member 30 and the locking member 10 can also be achieved. In other embodiments, the number of snap-fitting structures 33 and the number of second snap-fitting portions 13 can be set to three or more.

[0144] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent replacements of the technical solutions of the present application should not depart from the spirit and scope of the technical solutions of the present application.

Claims

1. A locking device, characterized in that: include: A locking member having a locked state and an unlocked state; an operating member, the operating member comprising an operating portion and a mating portion, one end of the mating portion being connected to the operating portion, the other end of the mating portion being movably connected to the locking member, the operating member being configured to receive a force to drive the locking member to move, so as to switch the locking member between the locked state and the unlocked state; A limiting member is located on a side of the locking member away from the operating member, the limiting member is movably connected to the locking member, and the limiting member is used to limit the movable distance of the matching portion along the locking member to prevent the matching portion from separating from the locking member during the movement.

2. The locking device according to claim 1, characterized in that: The locking member defines a matching hole, the matching portion is movably inserted into the matching hole, and is capable of driving the locking member to rotate axially around the matching hole to switch between the locking state and the unlocking state; The limiting member is used to limit the matching portion along the axial direction of the matching hole to prevent the matching portion from escaping from the matching hole during the movement of the matching portion.

3. The locking device according to claim 2, characterized in that: The operating member further includes a clamping portion connected to an end of the matching portion facing away from the operating member, the clamping portion being clamped to the locking member, the matching portion defining a deformation space, the opening of the deformation space being located on a side of the matching portion facing away from the operating member; The limiting member includes a supporting portion, which is configured to extend into the deformation space to limit the deformation of the matching portion and keep the engaging portion engaged with the locking member, thereby limiting the matching portion along the axial direction of the matching hole.

4. The locking device according to claim 3, characterized in that: The locking portion includes two snap structures, which are respectively connected to one end of the matching portion away from the operating portion and extend in a direction away from the deformation space. The two snap structures are configured to be locked to the edge of the locking member near the matching hole.

5. The locking device according to claim 2, characterized in that: A first limiting portion is provided on the outer surface of the mating portion, and a second limiting portion is provided on the hole surface of the mating hole. The first limiting portion and the second limiting portion are limitedly matched to limit the circumferential rotation of the mating portion relative to the mating hole along the mating hole.

6. The locking device according to claim 5, characterized in that: The first limiting portion is a matching protrusion convexly provided on the outer surface of the matching portion, the matching hole is a matching groove formed by being concave from the hole surface of the matching hole, and the matching protrusion is configured to be provided in the matching groove.

7. The locking device according to claim 1, characterized in that: One side of the limiting member is rotatably connected to one side of the locking member, and the other side of the limiting member is detachably connected to the other side of the locking member.

8. A tailgate assembly, characterized in that: include: tailgate trim; a cover plate, the cover plate being detachably connected to the tailgate trim panel; The locking device according to any one of claims 1 to 7, wherein the locking device is used to lock or unlock the cover on the tailgate trim.

9. The tailgate assembly according to claim 8, characterized in that: The operating member is configured to drive the locking member to rotate so as to switch between a locked state and an unlocked state; The locking member is provided with a limiting protrusion; The cover plate is provided with a first positioning portion and a second positioning portion, the first positioning portion and the second positioning portion are spaced apart along the rotation direction of the limiting protrusion, the limiting protrusion is located between the first positioning portion and the second positioning portion, when the locking member is in the locked state, the limiting protrusion abuts the first positioning portion, and when the locking member is in the unlocked state, the limiting protrusion abuts the second positioning portion.

10. A vehicle, characterized in that: The invention comprises the locking device according to any one of claims 1 to 7, and / or the tailgate assembly according to claim 8 or 9.

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