Rotary locking device and rotatable device assembly

Abstract

The invention relates to a rotary locking device, the rotary locking device is configured to be used for locking and unlocking rotary motion of a rotatable device, the rotary locking device comprises a stepless locking mechanism and an unlocking mechanism used for unlocking the stepless locking mechanism, and the unlocking mechanism comprises an unlocking piece. The unlocking part is configured to generate an unlocking movement under the action of an unlocking driving force and only unlock the stepless locking mechanism through the unlocking movement without driving the rotation of the movable part, and after the movable part is unlocked by means of the unlocking part, the stepless locking mechanism is unlocked by means of the unlocking movement without driving the rotation of the movable part. The movable member is rotatable under the action of a further rotational driving force independent of an unlocking driving force applied to the unlocking member. The present disclosure also relates to a rotatable device assembly. Therefore, the power output requirement of each power source can be reduced, and meanwhile, the superior stepless locking effect of the stepless locking mechanism with the movable piece, the fixed piece and the wedge-caulking assembly is still kept.

Description

Technical Field

[0001] This disclosure relates to a rotary locking device and a rotatable device assembly. Background Technology

[0002] With the rapid development of the automotive industry, the demand for "emotional value" in passenger vehicles is increasing, and users expect the passenger cabin space to offer more practical and unique functions. The demand for rotatable seats is one such example.

[0003] In some current technical solutions, for rotatable seats, a solution is adopted that uses a drive disc to unlock the wedge assembly in the wedge structure formed by the opposing surfaces of the movable and fixed parts, and continues to push the movable part with the same drive disc. However, in this solution, the force transmission system from the drive disc to the movable part is in a "series" form. The drive disc must not only provide the unlocking driving force, but also the driving force to continue pushing the movable part. This places high power requirements on the drive disc. Therefore, the power source used to provide power to the drive disc is usually an electric motor, and the output power of the electric motor is usually also high, resulting in high power output requirements for a single power source.

[0004] Therefore, there is an urgent need for a rotary locking device that can achieve unlocking of the movable part and further actuation after unlocking using either a single power source or multiple power sources, thereby reducing the power output requirements of the power source. Furthermore, this rotary locking device can reduce the motion error of the movable part during rotation after unlocking. In addition, the rotary locking device can retain the good stepless locking effect of a stepless locking mechanism with a movable part, a fixed part, and a wedge assembly. Summary of the Invention

[0005] The purpose of this disclosure is to provide a rotary locking device that allows for the unlocking of a movable member and further actuation after unlocking using either a single power source or multiple power sources. This reduces the power output requirements of each power source while retaining the superior stepless locking effect of a stepless locking mechanism with a movable member, a fixed member, and a wedge assembly. Furthermore, this rotary locking device reduces motion errors in the movable member during rotation after unlocking.

[0006] Another object of this disclosure is to provide a rotatable device assembly having such a rotary locking device.

[0007] Therefore, one aspect of this disclosure relates to a rotary locking device configured for locking and unlocking the rotational movement of a rotatable device. The rotary locking device includes a stepless locking mechanism and an unlocking mechanism for unlocking the stepless locking mechanism. The stepless locking mechanism includes: a rotatable movable member and a fixed fixing member, with a cavity formed between the fixing member and the movable member; and a plurality of wedge-tightening assemblies disposed within the cavity and including wedge-tightening elements and elastic elements; wherein a wedge-tightening structure is formed by the opposing surfaces of the fixing member and the movable member, and the wedge-tightening structure is configured to receive the wedge-tightening assemblies. The rotary locking device includes a mechanism for providing unlocking. A first actuator for driving force, and the unlocking mechanism includes an unlocking member, wherein the unlocking member is configured to generate an unlocking motion under the action of an unlocking driving force and to unlock only the continuously variable locking mechanism without driving the rotation of the movable member, wherein, in the locked position of the continuously variable locking mechanism, an elastic member acts on a wedge and weds the wedge into a wedge structure, such that the movable member remains stationary relative to the fixed member; in the unlocked position of the continuously variable locking mechanism, the wedge presses against the matched elastic member based on the unlocking motion of the unlocking member and disengages the wedge from the wedge structure, such that the movable member can rotate independently of the unlocking driving force applied to the unlocking member under the action of a separate rotational driving force.

[0008] In this disclosure, since the unlocking component is configured to generate an unlocking motion under the action of the unlocking driving force, and this unlocking motion only unlocks the continuously variable locking mechanism without driving the rotation of the movable component, and the movable component can rotate independently of the unlocking driving force applied to the unlocking component under the action of another rotational driving force, it is not limited to a single power source. The traditional "series" power transmission from a single power source to the movable component is transformed into a "parallel" unlocking-driving configuration where the unlocking driving force is used to unlock the continuously variable locking mechanism, and the other rotational driving force is used to continue driving the rotation of the movable component after the continuously variable locking mechanism is unlocked. This brings the following advantages: 1. The unlocking driving force only needs to be used to unlock the continuously variable locking mechanism, and does not need to continue driving the movable component. Therefore, the requirement for the unlocking driving force is not high. Unlocking can be triggered manually, or an actuator with a small power output can be used to trigger unlocking; 2. Because of the parallel unlocking-drive configuration, the power sources for generating the unlocking drive force and the power sources for generating the rotation drive force can be flexibly selected and combined individually. For example, a "manual unlocking + manual rotation of the movable part" mode, a "manual unlocking + electric rotation of the movable part" mode, or a "electric unlocking + manual rotation of the movable part" or "electric unlocking + electric rotation of the movable part" mode can be used as needed. 3. The transmission chain from the power source generating the rotation drive force to the movable part is shorter than that of the "series" mode. For example, the movable part can be directly driven by the corresponding power source, which can better control the motion error of the movable part and meet higher error control requirements. 4. It still retains the superior stepless locking effect of the stepless locking mechanism with movable part, fixed part and wedge clamping assembly.

[0009] In some embodiments, the unlocking member is configured to remain stationary relative to the movable member when the unlocking motion is generated under the action of the unlocking driving force; and to remain stationary relative to the movable member when the movable member rotates.

[0010] In some embodiments, the movable element and the unlocking element are arranged coaxially with each other; and / or the movable element and the unlocking element are arranged overlapping each other along the axial direction of the rotary locking device and / or the unlocking element is configured as an unlocking disc.

[0011] In some embodiments, each wedge assembly includes two wedges, wherein an elastic element in the wedge assembly is disposed between the two wedges and simultaneously contacts the two wedges respectively; and / or the wedges are constructed as rollers; and / or the elastic element is constructed as an elastomer or a spring.

[0012] In some embodiments, the fixing member is arranged radially outside the movable member, the cavity is constructed between the inner peripheral surface of the fixing member and the outer peripheral surface of the movable member, and the inner peripheral surface of the fixing member and the outer peripheral surface of the movable member form a wedge-tight structure; or the fixing member is arranged radially inside the movable member, the cavity is constructed between the outer peripheral surface of the fixing member and the inner peripheral surface of the movable member, and the outer peripheral surface of the fixing member and the inner peripheral surface of the movable member form a wedge-tight structure.

[0013] In some embodiments, among the opposing surfaces of the fixed member and the movable member: the fixed member's surface is a circular surface, while the movable member's surface is an irregularly shaped surface, or the fixed member's surface is an irregularly shaped surface, while the movable member's surface is a circular surface. In this disclosure, thanks to the "parallel" unlocking-drive configuration, the movable member's surface can be innovatively made to be a circular surface in the wedge-tightening structure, and the unlocking structure becomes simpler.

[0014] In some embodiments, the unlocking element is configured to move axially along the axial direction of the rotary locking device under the action of an unlocking driving force, and to cause the continuously variable locking mechanism to unlock by means of this axial movement. Thus, the continuously variable locking mechanism can be unlocked by means of the advantageous axial movement of the unlocking element.

[0015] In some embodiments, a first engaging structure is provided circumferentially on the surface of the unlocking member facing the movable member. When the unlocking member moves axially toward the movable member in the axial direction, the first engaging structure acts on the wedge of the continuously variable locking mechanism and unlocks the continuously variable locking mechanism.

[0016] In some embodiments, the first mating structure is configured as a first axial protrusion protruding toward the movable member along the axial direction of the unlocking member.

[0017] In some embodiments, the first axial protrusion of the unlocking member is radially spaced from the opposing surfaces of the movable member; and / or the first axial protrusion of the unlocking member is radially spaced from the opposing surfaces of the fixing member. This reduces internal resistance during unlocking and actuation.

[0018] In some embodiments, each wedge assembly includes two wedges, an elastic element in the wedge assembly is disposed between the two wedges, and a chamfered or curved structure is provided on the first mating structure for mating with a corresponding wedge in the wedge assembly.

[0019] In some embodiments, a support tray is arranged between the movable member and the unlocking member, the support tray being configured to support the wedge-tightening assembly. This provides advantageous support for the wedge-tightening assembly.

[0020] In some embodiments, a first reset element is arranged between the tray and the unlocking member, the first reset element being configured to reset the unlocking member when it is not in an unlocking function. This allows for a more advantageous reset of the unlocking member.

[0021] In some embodiments, a first engaging structure is provided circumferentially on the surface of the unlocking member facing the movable member for engaging with the wedge-tightening member of the continuously variable locking mechanism and unlocking the continuously variable locking mechanism, and a through portion is provided circumferentially on the support tray for the first engaging structure to pass through. Thus, the support tray can be advantageously adapted to the unlocking movement of the unlocking member.

[0022] In some embodiments, the unlocking mechanism further includes a rotatable unlocking drive disposed on the side of the unlocking member opposite to the movable member, and configured to engage with the unlocking member and apply an unlocking driving force to the unlocking member, converting its own rotational motion into axial motion of the unlocking member. Thus, the rotatable unlocking drive converts its own rotational motion into axial motion of the unlocking member, thereby providing an advantageous triggering method for possible manual unlocking.

[0023] In some embodiments, a ramp structure is circumferentially distributed on one of the mutually facing surfaces of the unlocking drive and the unlocking member, and a second mating structure is circumferentially distributed on the other of the mutually facing surfaces of the unlocking drive and the unlocking member. The ramp structure can engage with the second mating structure to convert the rotational motion of the unlocking drive into the axial motion of the unlocking member. Thus, the ramp structure can convert the rotational motion of the unlocking drive into the axial motion of the unlocking member, providing a favorable motion conversion method for possible manual unlocking through the change in the direction of motion transmission.

[0024] In some embodiments, the second mating structure is constructed on the unlocking member, and the second mating structure is constructed as a second axial protrusion protruding toward the unlocking drive member along the axial direction of the unlocking drive member; or the second mating structure is constructed on the unlocking drive member, and the second mating structure is constructed as a second axial protrusion protruding toward the unlocking member along the axial direction of the unlocking drive member.

[0025] In some embodiments, a ramp that matches the ramp structure is provided at the top of the second axial protrusion. This allows the second axial protrusion to fit very snugly with the ramp structure, which can advantageously reduce wear on the second axial protrusion and the ramp structure, thereby extending their service life.

[0026] In some embodiments, a third mating structure is provided on the surface of the unlocking drive member facing away from the unlocking member, and the rotation locking device includes a rotation limiting structure for limiting the rotational stroke of the unlocking member. The third mating structure can move within the rotation limiting structure under the action of an external force so that the unlocking drive member rotates with a limited stroke.

[0027] In some embodiments, the third mating structure is configured as a third axial protrusion protruding away from the unlocking member along the axial direction of the unlocking drive member.

[0028] In some embodiments, the first actuator includes a cable mechanism, one end of which is fixed to a third mating structure. Triggering the cable mechanism can pull the third mating structure, thereby causing the unlocking drive to rotate and unlock the stepless locking mechanism; and / or the cable mechanism is configured to be manually triggered and manually held; or manually triggered and electrically held; or electrically triggered and electrically held.

[0029] In some embodiments, the rotary locking device further includes a second reset element, one end of which is connected to the third mating structure and the other end of which is connected to a position fixed relative to the rotary limiting structure. The second reset element is configured to reset the third mating structure after the stepless locking mechanism is unlocked and the cable mechanism is released.

[0030] In some embodiments, the second reset element is configured as a spring or an elastomeric element made of an elastomer.

[0031] In some embodiments, the rotation limiting structure is configured as an arcuate groove, and the third mating structure is able to pass through the arcuate groove and move within the arcuate groove with a limited stroke.

[0032] In some embodiments, the fixed member has a circular face, while the movable member has an irregularly shaped face. The rotary locking device also includes a follower member that engages with the movable member in a non-rotatable manner. This follower member can drive the unlocking member and the support tray to rotate with the movable member after the stepless locking mechanism is unlocked, without hindering the axial movement of the unlocking member. This provides a follower member for wedge-clamping structures where the fixed member has a circular face and the movable member has an irregularly shaped face, thus solving the problem of the need for various components that engage with the wedge-clamping assembly located on the irregularly shaped face of the movable member to rotate with the movable member.

[0033] In some embodiments, the unlocking mechanism includes a rotation limiting structure for limiting the rotational travel of the unlocking member, the rotation limiting structure being configured on the follower; and / or the follower and the movable member being arranged coaxially with each other; and / or the follower being configured as a follower rotating disk.

[0034] In some embodiments, a fourth mating structure is arranged circumferentially on the follower, the fourth mating structure cooperating with a fifth mating structure on the unlocking member, a sixth mating structure on the support tray, and a seventh mating structure on the movable member so that the follower can drive the unlocking member and the support tray to rotate with the movable member after the stepless locking mechanism is unlocked.

[0035] In some embodiments, the fourth mating structure is configured as a fourth axial protrusion distributed circumferentially along the follower and protruding toward the movable member in its axial direction, with a first slot formed in the fourth axial protrusion. The sixth mating structure is configured as a second slot distributed circumferentially along the unlocking member, and a first radial protrusion distributed circumferentially along the support tray and protruding radially. The fourth axial protrusion on the follower mates with the second slot on the unlocking member, and the first slot in the fourth axial protrusion of the follower mates with the first radial protrusion on the support tray. Alternatively, the fifth mating structure is configured as a first radial protrusion distributed circumferentially along the unlocking member and protruding radially, and the sixth mating structure is configured as a second slot distributed circumferentially along the support tray. The first slot in the fourth axial protrusion of the follower mates with the first radial protrusion on the support tray. The first radial protrusion on the locking member engages with the fourth axial protrusion on the follower, which engages with the second slot on the support plate; or the fifth and sixth engagement structures are respectively constructed as first radial protrusions that are distributed circumferentially and radially protruding along the unlocking member and the support plate, and the first slot in the fourth axial protrusion of the follower engages with the first radial protrusion on the unlocking member and the support plate respectively; or the fifth and sixth engagement structures are respectively constructed as second slots that are distributed circumferentially along the unlocking member and the support plate, and the fourth axial protrusion on the follower engages with the second slot on the unlocking member and the support plate respectively; and wherein the seventh engagement structure is constructed as a second radial protrusion that is distributed circumferentially and radially protruding along the movable member, and the first slot in the fourth axial protrusion of the follower engages with the second radial protrusion on the movable member.

[0036] In some embodiments, the fourth axial protrusion of the follower and the opposing surfaces of the retainer are radially spaced apart. This reduces the internal resistance during unlocking and driving.

[0037] In some embodiments, the fixed member has an irregularly shaped face among the opposing faces of the fixed member and the movable member, while the movable member has a circular face. In this embodiment, when the stepless locking mechanism is unlocked and rotated, the unlocking member and the support tray are configured not to rotate relative to the fixed member and not to rotate with the movable member.

[0038] In some implementations, the rotational driving force for rotating the movable element after unlocking can be applied manually.

[0039] In some embodiments, the rotary locking device further includes a second actuator configured to provide a rotary driving force for rotating the movable element after the continuously variable locking mechanism has been unlocked.

[0040] In some embodiments, the second actuator includes a rotary drive tooth and the movable member is provided with a first driven tooth, the rotary drive tooth meshing with the first driven tooth.

[0041] In some embodiments, the fixing member is arranged radially outside the movable member, and the first driven tooth is provided on the inner periphery of the movable member; or the fixing member is arranged radially inside the movable member, and the first driven tooth is provided on the outer periphery of the movable member.

[0042] In some embodiments, the unlocking member is provided with unlocking protrusions that are respectively matched with the wedge assembly. The unlocking protrusions extend axially and into the cavity. The unlocking member can rotate to drive the unlocking protrusions to rotate and thereby unlock the stepless locking mechanism.

[0043] In some embodiments, the first actuator includes an unlocking drive tooth, and the unlocking member is provided with a second driven tooth, the unlocking drive tooth engaging with the second driven tooth.

[0044] In some embodiments, the second actuator includes a rotary drive tooth and the movable member is provided with a first driven tooth, the rotary drive tooth meshing with the first driven tooth.

[0045] In some embodiments, the first actuator and the second actuator each include a driver, and the unlocking drive tooth and the rotating drive tooth are driven by corresponding drivers.

[0046] In some embodiments, among the opposing surfaces of the fixed member and the movable member, the fixed member has a circular surface, while the movable member has an irregularly shaped surface. The driver of the first actuator and the driver of the second actuator are respectively configured such that the unlocking member can rotate synchronously with the movable member after the continuously variable locking mechanism is unlocked. Alternatively, among the opposing surfaces of the fixed member and the movable member, the fixed member has an irregularly shaped surface, while the movable member has a circular surface. The driver of the first actuator and the driver of the second actuator are respectively configured such that after the continuously variable locking mechanism is unlocked, the driver of the first actuator keeps the unlocking structure unlocked, while the driver of the second actuator drives the movable member to rotate.

[0047] In some embodiments, among the opposing surfaces of the fixed member and the movable member, the fixed member has a circular surface, while the movable member has an irregularly shaped surface. Furthermore, the first and second actuators share a single driver. The unlocking drive gear and the rotary drive gear are mounted on the output shaft of the driver and driven by the same driver. The unlocking drive gear and the rotary drive gear are configured such that after the unlocking drive gear unlocks the continuously variable locking mechanism, the rotary drive gear can drive the movable member and the unlocking member to rotate synchronously.

[0048] In some embodiments, there is a free travel between the rotary drive teeth and the output shaft of the driver. This free travel is designed so that the rotary drive teeth can drive the movable part and the unlocking part to rotate synchronously after the unlocking drive teeth drive the stepless locking mechanism to unlock.

[0049] In some embodiments, a rotary drive gear is connected to the output shaft, and a rotary drive tooth is provided on the rotary drive gear. A radially protruding engagement protrusion is provided on one of the output shaft and the rotary drive gear, and a recess that can cooperate with the engagement protrusion is provided on the other of the output shaft and the rotary drive gear. In the locked position of the unlocking mechanism, for the corresponding rotation direction of the output shaft, there is a gap between the corresponding sidewall of the protrusion and the corresponding sidewall of the recess as a free stroke.

[0050] In some embodiments, the rotatable device is configured as a rotatable component inside a vehicle.

[0051] In some embodiments, the support tray is arranged coaxially with the movable and unlocking components.

[0052] In some embodiments, the unlocking drive is arranged coaxially with the movable member and the unlocking member; and / or the unlocking drive is configured as an unlocking disc.

[0053] The second aspect of this disclosure relates to a rotatable device assembly for use inside a transport vehicle, characterized in that the rotatable device assembly includes a rotatable device and a rotation locking device according to any one of the foregoing embodiments, the rotatable device being fixedly connected to a movable part of the rotation locking device, and the rotation locking device being capable of locking and unlocking the rotational movement of the rotatable device.

[0054] In some embodiments, the rotatable device includes or is configured as one of a seat frame, a center console, or an armrest box.

[0055] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description

[0056] The present disclosure will be further described below with reference to the illustrative accompanying drawings and exemplary embodiments. In the drawings:

[0057] Figure 1 A schematic perspective view of a rotary locking device according to a first embodiment of the present disclosure is shown.

[0058] Figure 2 Show Figure 1 A schematic exploded view of the rotary locking device in the diagram.

[0059] Figure 3 Show Figure 1 Another schematic exploded view of the rotary locking device.

[0060] Figure 4 Show Figure 1 A schematic cross-sectional view of a portion of the rotary locking device.

[0061] Figures 5 to 14 Show Figure 1 A schematic perspective view of several parts of the rotary locking device.

[0062] Figure 15 and Figure 16 Show Figure 1 A schematic diagram of the state of multiple local parts of the rotary locking device in the locked position.

[0063] Figure 17 and Figure 18 Show Figure 1 A schematic diagram showing the state of multiple parts of the rotary locking device in the unlocked position.

[0064] Figure 19 Show Figure 1 A schematic top view of the stepless locking mechanism of the rotary locking device.

[0065] Figure 20 A schematic top view of a continuously variable locking mechanism, a variation of the first embodiment of the rotary locking device.

[0066] Figure 21 A schematic perspective view of a rotary locking device according to a second embodiment of the present disclosure is shown.

[0067] Figure 22 Show Figure 21 A schematic cross-sectional view of a portion of the rotary locking device.

[0068] Figure 23 Show Figure 21 A schematic exploded view of the rotary locking device in the diagram.

[0069] Figure 24 Show Figure 21 Another schematic exploded view of the rotary locking device, showing detailed views of a portion thereof.

[0070] Figures 25 to 28 Show Figure 21 A schematic perspective view of several parts of the rotary locking device.

[0071] Figure 29 and Figure 30 Show Figure 21 A schematic diagram of the state of multiple local parts of the rotary locking device in the locked position.

[0072] Figure 31 and Figure 32 Show Figure 21 A schematic diagram showing the state of multiple parts of the rotary locking device in the unlocked position.

[0073] Figure 33 Show Figure 21 A schematic top view of the stepless locking mechanism of the rotary locking device.

[0074] Figure 34 A schematic top view of a variant of the rotary locking device, showing a continuously variable locking mechanism, according to a second embodiment.

[0075] Figure 35 A schematic perspective view of a rotary locking device according to a third embodiment of the present disclosure is shown, wherein only the output shaft portion of the first actuator is shown for clarity.

[0076] Figure 36 Show Figure 35 An exploded view of the rotary locking device in the diagram.

[0077] Figure 37 A schematic exploded view of a rotary locking device according to a third embodiment of the present disclosure is shown.

[0078] Figure 38 Show Figure 35 A schematic cross-sectional view of a portion of the rotary locking device.

[0079] Figure 39 Show Figure 35A schematic perspective view of a portion of the rotary locking device.

[0080] Figure 40 Show Figure 35 A schematic diagram of the state of multiple local parts of the rotary locking device in the locked position.

[0081] Figure 41 Show Figure 35 A schematic diagram showing the state of multiple parts of the rotary locking device in the unlocked position.

[0082] Figure 42 Show Figure 35 A schematic top view of the continuously variable locking mechanism and drive stage arrangement of the rotary locking device, wherein the irregular hole in the rotary drive gear is not shown for clarity.

[0083] Figures 43 to 45 A schematic top view of the continuously variable locking mechanism and drive stage arrangement of a rotary locking device according to some other embodiments of the present disclosure is shown, wherein the irregular holes in the rotary drive gear are not shown for clarity.

[0084] Figure 46 A schematic diagram of the arrangement of a rotatable device assembly with a rotary locking device and a rotatable device according to the present disclosure is shown. Detailed Implementation

[0085] First refer to Figures 1 to 14 The basic structure and operating principle of a rotation locking device 100 for a rotatable device according to a first embodiment of the present disclosure are described.

[0086] like Figures 1 to 14 As shown, the rotary locking device 100 according to a first embodiment of this disclosure includes a stepless locking mechanism, an unlocking mechanism for unlocking the stepless locking mechanism, and a first actuator for providing unlocking driving force. The stepless locking mechanism includes a rotatable movable member 8, a fixed fixing member 9, and a plurality of wedge-tightening assemblies, wherein the movable member 8 can be connected to a rotatable device. The unlocking mechanism includes an unlocking member 4 and an unlocking drive member 3 for driving the unlocking member 4. Furthermore, in the first embodiment, the rotary locking device 100 also includes a housing 1, a follower 2, a support tray 5, and a cover plate 11, wherein the housing 1 and the cover plate 11 are fixedly connected together, and the follower 2, the unlocking drive member 3, the unlocking member 4, the support tray 5, the movable member 8, and the fixing member 9 are accommodated in an installation space defined by the housing 1 and the cover plate 11. In this disclosure, the rotary locking device 100 is configured to lock and unlock a rotatable device, particularly the rotational movement of the rotatable device. The rotatable device can be a rotatable seat frame 200 for the transport vehicle 300 (see reference). Figure 46The rotatable seat frame 200 and the rotation locking device 100 can constitute one embodiment of the rotatable device assembly. In another embodiment, the rotatable device can also be other internal components within the vehicle 300, such as an armrest or center console. The vehicle 300 can be, for example, a motor vehicle, such as a passenger car. The vehicle 300 can also be other land vehicles, air vehicles, or water vehicles. For passenger cars, the vehicle 300 of this disclosure can in particular be a mid-to-large SUV or MPV. Of course, the rotation locking device 100 of this disclosure can also be used in other application areas where a rotatable device with a rotation locking device 100 is required, in addition to its use in the vehicle 300.

[0087] To fix the cover plate 11 to the housing 1, a plurality of first bolts 14 are provided on the cover plate 11, and a plurality of first bolt holes 1b are provided on the housing 1. The plurality of first bolt holes 1b on the housing 1 are fitted into the plurality of first bolts 14 on the cover plate 11, and are fixed by nuts. In addition, a plurality of snap-fit ​​parts 1a are provided on the outer periphery of the housing 1, and a window part 11a corresponding to the snap-fit ​​parts 1a is provided on the outer periphery of the cover plate 11. The snap-fit ​​parts 1a can be snapped into the window part 11a, so that the housing 1 and the cover plate 11 are pre-assembled and fixed before being finally fixed by nuts.

[0088] Multiple second bolts 12 are provided on the movable part 8, which can be used to connect rotatable devices, such as the seat frame of a seat.

[0089] In this disclosure, the fixing member 9 and the wedge-tightening assembly are components of the stepless locking mechanism. A cavity is formed between the fixing member 9 and the movable member 8. In a first embodiment, multiple wedge-tightening assemblies are disposed within the cavity, and each wedge-tightening assembly includes two wedges 7 and one elastic member 6b, wherein the elastic member 6b in the wedge-tightening assembly is disposed between the two wedges 7 and simultaneously contacts the two wedges 7 respectively. Besides each wedge-tightening assembly including two wedges 7 and one elastic member 6b, other arrangements of the wedges 7 and elastic members 6b are conceivable; for example, a wedge-tightening assembly may include only one wedge 7 and one elastic member 6b, the elastic member 6b being blocked by a protrusion radially projecting from the irregular surface. Here, the wedges 7 are constructed as rollers. The elastic member 6b can be a spring, such as a metal compression spring, or it can be an elastomeric element made of an elastomer, which can be silicone or rubber. Here, a wedge-tightening structure is formed by the opposing surfaces of the fixed member 9 and the movable member 8, and the wedge-tightening structure is configured to receive the wedge-tightening assembly. The unlocking member 4 can move axially along the axial direction of the rotary locking device 100 under the action of the unlocking driving force provided by the first actuator, and unlocks the stepless locking mechanism through this axial movement. In the locked position of the stepless locking mechanism, the elastic member 6b acts on the wedge-tightening member 7 and wedges the wedge-tightening member 7 into the wedge-tightening structure, keeping the movable member 8 stationary relative to the fixed member 9. In the unlocked position of the stepless locking mechanism, the wedge-tightening member 7 presses against the matched elastic member 6b based on the axial movement of the unlocking member 4, disengaging the wedge-tightening member 7 from the wedge-tightening structure, allowing the movable member 8 to rotate independently of the unlocking driving force applied to the unlocking member 4. The unlocking member 4 can be constructed as an unlocking disc and coaxially arranged with the movable member 8; other configurations of the unlocking member 4 are also conceivable. In the first embodiment, the fixing member 9 is arranged radially outside the movable member 8, and the cavity is constructed between the inner peripheral surface of the fixing member 9 and the outer peripheral surface of the movable member 8, forming a wedge-tight structure. Furthermore, in the first embodiment, among the opposing surfaces of the fixing member 9 and the movable member 8, the surface of the fixing member 9 is circular, while the surface of the movable member 8 is irregularly shaped. In the first embodiment, the unlocking mechanism is only used to unlock the continuously variable locking mechanism; after the continuously variable locking mechanism is unlocked, the rotation of the movable member 8 is achieved manually. The following problem exists: Since the movable part 8 has an irregular surface, the wedge assembly will rotate together with the irregular surface in the wedge structure when the movable part 8 rotates. As mentioned above, the unlocking of the wedge assembly is achieved by the axial movement of the unlocking part 4. If the unlocking part 4 does not rotate with the movable part 8, it may cause the movable part 8 to be unable to rotate, or it may cause the unlocking part 4 to fail to unlock the wedge assembly after the movable part 8 rotates due to the change in the circumferential position of the wedge assembly.Therefore, in the first embodiment, a follower 2 is provided. The main task of the follower 2 is to enable the unlocking member 4 to rotate with the movable member 8 after the stepless locking mechanism is unlocked. For this purpose, the follower 2 can be constructed as a follower rotating disk, but other forms of follower structures are also conceivable.

[0090] To enable the axial movement of the unlocking member 4 to unlock the continuously variable locking mechanism, a first engaging structure 4b is circumferentially distributed on the surface of the unlocking member 4 facing the movable member 8. When the unlocking member 4 moves axially toward the movable member 8, the first engaging structure 4b acts on the wedge member 7 of the continuously variable locking mechanism, thus unlocking the mechanism. The first engaging structure 4b can be constructed as a first axial protrusion protruding toward the movable member 8 along the axial direction of the unlocking member 4. To reduce unlocking and driving resistance, such as... Figure 16 As shown, the unlocking member 4 is constructed such that the first axially protruding first mating structure 4b and the opposing surfaces of the movable member 8 are radially spaced apart from each other, and the unlocking member 4 is also constructed such that the first axially protruding first mating structure 4b and the opposing surfaces of the fixing member 9 are also radially spaced apart from each other. Furthermore, as from... Figure 6 and Figure 15 As can be clearly seen, a beveled structure 4d is provided on the first mating structure 4b, which is used to mate with the corresponding wedge member 7 in the wedge assembly. In addition to the beveled structure 4d, an arc-shaped structure can also be conceived.

[0091] To support the wedge-tightening assembly, a support tray 5 is arranged between the movable member 8 and the unlocking member 4. Furthermore, a first reset element 6a is arranged between the support tray 5 and the unlocking member 4, configured to reset the unlocking member 4 when it is not in an unlocking function. Additionally, through-holes are provided circumferentially on the support tray 5 for the first mating structure 4b to pass through. These through-holes are achieved through gaps on both sides of a radial protrusion 5a on the support tray 5, which serves to cover and support the wedge-tightening assembly.

[0092] To achieve axial movement of the unlocking member 4, the unlocking mechanism further includes a rotatable unlocking drive member 3, which is arranged on the side of the unlocking member 4 opposite to the movable member 8. The unlocking drive member 3 is configured to cooperate with the unlocking member 4, apply an unlocking driving force to the unlocking member 4, and convert its own rotational motion into axial movement of the unlocking member 4. A ramp structure 3a is circumferentially distributed on the surface of the unlocking drive member 3 facing the unlocking member 4, and a second mating structure 4a is circumferentially distributed on the surface of the unlocking member 4 facing the unlocking drive member 3. The ramp structure 3a can cooperate with the second mating structure 4a to convert the rotational motion of the unlocking drive member 3 into axial movement of the unlocking member 4. The second mating structure 4a can be constructed as a second axial protrusion protruding towards the unlocking drive member 3 along its axial direction. Figure 15 and Figure 17 As can be clearly seen, a ramp matching the ramp structure 3a is provided at the top of the second mating structure 4a, which is constructed as a second axial protrusion. In addition to the above arrangement, in another embodiment not shown, it is conceivable that the ramp structure 3a is provided circumferentially on the surface of the unlocking member 4 facing the unlocking drive member 3, and the second mating structure 4a is provided circumferentially on the surface of the unlocking drive member 3 facing the unlocking member 4.

[0093] Furthermore, a third mating structure 3b is provided on the surface of the unlocking drive member 3 facing away from the unlocking member 4, and the rotation locking device 100 includes a rotation limiting structure 2c for restricting the rotational stroke of the unlocking member 4. The third mating structure 3b can move within the rotation limiting structure 2c with a limited stroke under the action of an external force, so that the unlocking drive member 3 rotates with a limited stroke. The third mating structure 3b can be configured as a third axial protrusion protruding away from the unlocking member 4 along the axial direction of the unlocking drive member 3. In the first embodiment, the rotation limiting structure 2c is constructed on the follower member 2. Of course, it is also conceivable that the rotation limiting structure 2c is constructed on another component.

[0094] In the first embodiment, the first actuator includes a cable mechanism 13, one end of which is fixed to the third mating structure 3b. Triggering the cable mechanism 13 pulls the third mating structure 3b, thereby causing the unlocking drive member 3 to rotate, thus unlocking the stepless locking mechanism. That is, in the first embodiment, the unlocking drive force is provided by the cable mechanism 13. Furthermore, the rotation locking device 100 also includes a second reset element 6c, one end of which is connected to the third mating structure 3b and the other end to a position fixed relative to the rotation limiting structure 2c. The second reset element 6c is configured to reset the third mating structure 3b after the stepless locking mechanism is unlocked and the cable mechanism 13 is released. The second reset element 6c can be constructed as a spring, such as a metal tension spring or compression spring. The second reset element 6c can also be constructed as an elastomeric element made of an elastomer, which can be silicone or rubber. The rotation limiting structure 2c is constructed as an arc-shaped groove, and the third mating structure 3b can pass through the arc-shaped groove and move within the arc-shaped groove with a limited stroke.

[0095] from Figure 3 As can be clearly seen, the follower 2, constructed as a rotating disk, engages with the movable member 8 in a non-rotatable manner, and also with the unlocking member 4 and the support tray 5 in a non-rotatable manner. Thus, after the stepless locking mechanism is unlocked, the follower 2 can drive the unlocking member 4 and the support tray 5 to rotate with the movable member 8, without hindering the axial movement of the unlocking member 4. For this purpose, a fourth engagement structure 2b is arranged circumferentially on the follower 2. In some embodiments, refer to... Figure 2 and Figure 5 The fourth mating structure 2b can be configured as a fourth axial protrusion distributed circumferentially along the follower 2 and protruding toward the movable member 8 in its axial direction. A first slot 2e can be constructed in the fourth axial protrusion. The fourth mating structure 2b cooperates with the fifth mating structure 4e on the unlocking member 4, the sixth mating structure 5b on the support tray 5, and the seventh mating structure 8a on the movable member 8 so that the follower 2 can drive the unlocking member 4 and the support tray 5 to rotate with the movable member 8 after the stepless locking mechanism is unlocked. In one embodiment, as... Figure 6As shown, the fifth mating structure 4e can be constructed as a second slot distributed circumferentially along the unlocking member 4, and the sixth mating structure 5b is constructed as a first radial protrusion distributed circumferentially and protruding radially along the support tray 5. The fourth axial protrusion on the follower 2 mates with the second slot on the unlocking member 4, and the first slot 2e in the fourth axial protrusion of the follower 2 mates with the first radial protrusion on the support tray 5. In addition to the above-described arrangement, in another embodiment (not shown), it is conceivable that the fifth mating structure 4e is constructed as a first radial protrusion distributed circumferentially and protruding radially along the unlocking member 4, and the sixth mating structure 5b is constructed as a second slot distributed circumferentially along the support tray 5. The first slot in the fourth axial protrusion of the follower 2 mates with the first radial protrusion on the unlocking member 4, and the fourth axial protrusion on the follower 2 mates with the second slot on the support tray 5; or the fifth mating structure 4e and the sixth mating structure 5b are respectively constructed as first radial protrusions distributed circumferentially and protruding radially along the unlocking member 4 and the support tray 5, and the first slot 2e in the fourth axial protrusion of the follower 2 mates with the first radial protrusions on the unlocking member 4 and the support tray 5; or the fifth mating structure 4e and the sixth mating structure 5b are respectively constructed as second slots distributed circumferentially along the unlocking member 4 and the support tray 5, and the fourth axial protrusion on the follower 2 mates with the second slots on the unlocking member 4 and the support tray 5. (Refer to...) Figure 3 and Figure 7 The seventh mating structure 8a can be constructed as a second radial protrusion distributed circumferentially and protruding radially along the movable member 8, and the first slot 2e in the fourth axial protrusion of the follower 2 mates with the second radial protrusion on the movable member 8. Furthermore, in the first embodiment, the unlocking drive member 3, which interacts with the unlocking member 4, also rotates along with the unlocking member 4. Here, in order to reduce the unlocking and driving internal resistance, such as from... Figure 16 As can be clearly seen, the follower 2 is constructed as a fourth axial protrusion fourth mating structure 2b, and the opposing surfaces of the fixing member 9 are also spaced apart from each other radially.

[0096] The cover plate 11 can be fixedly arranged on the fixing member 9 by means of a first bolt 14 passing through the cover plate 11 and the cover plate 11 substantially covers the cavity. A spacer 10 is provided between the movable member 8 and the wedge assembly and the cover plate 11, thereby providing a spacer 10 that is as follows: Figure 4 The upper end shown can isolate the cover plate 11, and the isolation gasket 10 is as follows: Figure 4 The lower end shown can isolate the movable part 8 and the wedge member 7 in the wedge assembly to avoid abnormal noise caused by collision between metal parts and to reduce the frictional resistance of the metal parts during rotation.

[0097] To assemble the rotary locking device 100, in one embodiment, four first bolts 14 can be fixed so that the four holes of the cover plate 11 pass through the first bolts 14, the isolation washers 10 are stacked on the cover plate 11, and the four holes of the fixing member 9 pass through the first bolts 14 and are stacked on top of the cover plate 11 and the isolation washers 10. Next, four second bolts 14 can be pressed into the four holes of the movable member 8 to form a whole, and installed into the inner circumferential surface of the fixing member 9, allowing the movable member 8 to rotate freely about its central axis within the fixing member 9. Subsequently, a wedge-tightening assembly with wedge-tightening elements 7 and elastic elements 6b configured as springs can be simultaneously installed in the cavity formed by the inner circumferential surface of the fixing member 9 and the outer circumferential surface of the movable member 8. In each wedge-tightening assembly, two wedge-tightening elements 7 contact the inner circumferential surface of the fixing member 9 and the outer circumferential surface of the movable member 8 under the action of the elastic elements 6b, wherein the elastic elements 6b are located between the wedge-tightening elements 7 and contact the two wedge-tightening elements 7 on both sides. The larger radial protrusion of the support tray 5 rests on the wedge-tightening assembly. Next, the first reset element 6a, configured as a return spring, can be inserted into the support cylinder 4c of the unlocking member 4, configured as an unlocking disc. The unlocking member 4 with the first reset element 6a is stacked on the support tray 5, and the first mating structure 4b of the unlocking member 4, configured as a first axial protrusion, passes through the groove formed by the larger radial protrusion and the smaller first radial protrusion of the support tray 5, wherein the groove forms a through portion for the first mating structure 4b of the unlocking member 4. Then, the second mating structure 4a of the unlocking member 4, configured as a second axial protrusion, can be placed within the ramp structure 3a of the unlocking drive member 3. Then, the third mating structure 3b of the unlocking drive member 3, configured as a third axial protrusion, passes through the rotation limiting structure 2c of the follower member 2, configured as a follower rotating disc, which can be configured as a hole or an arc-shaped groove. The fourth mating structure 2b of the follower member 2, configured as a slot in a fourth axial protrusion, passes through the first radial protrusion of the support tray 5 and the second radial protrusion of the movable member 8. Next, the housing 1 can be installed onto the outer peripheral surface of the follower 2. The follower 2 as a whole can rotate freely around the central axis within the housing 1, and the snap-fit ​​portion 1a of the housing 1 can be connected to the window portion 11a of the cover plate 11. The second reset element 6c, which is a tension spring for resetting the cable mechanism 13, is fixed at one end to the fixing portion 2a of the follower 2 and at the other end to the hole in the third mating structure 3b of the unlocking drive member 3. The opening hole on the third mating structure 3b of the unlocking drive member 3 is connected to the fixing end 13a of the cable mechanism 13 (see reference). Figure 13 and Figure 15 The axial protruding groove 2d of the follower 2 is connected, in particular, to the I-shaped fixing block 13b of the cable mechanism 13, and is engaged (see reference). Figure 5 , Figure 13 and Figure 15 The installation is now complete.

[0098] The following reference Figures 15 to 18Describe the locking and unlocking positions of the stepless locking mechanism in the first embodiment. For example... Figure 15 and Figure 16 As shown, in the locked position, the cable mechanism 13 is not pulled, so the unlocking member 4 does not perform axial movement. At this time, the two wedge members 7 in the wedge assembly rebound through the elastic member 6b, or are squeezed to both sides, and move away from the elastic member 6b, thereby contacting the inner circumferential surface of the fixed member 9 and the outer circumferential surface of the movable member 8, and thus locking the movable member 8, thereby achieving the locking effect. In addition, as Figure 17 and Figure 18 As shown, when unlocking is required, the cable mechanism 13 can be manually pulled, which pulls the third mating structure 3b of the unlocking drive 3 to rotate via the fixed end. The rotation of the ramp structure 3a on the unlocking drive 3 causes the second mating structure 4a of the unlocking member 4 to move axially toward the movable member 8, i.e., upward. The first mating structure 4b on the unlocking member 4 moves upward as a whole, overcoming the elastic force of the first reset element 6a, which is constructed as a return spring. The first mating structure 4b of the unlocking member 4 overcomes the elastic force of the elastic element 6b and squeezes the wedges 7 on both sides toward the elastic element 6b in the middle, causing the wedges 7 to be squeezed open and disengaged from the wedge structure, thereby disengaging from the locked position, and thus the stepless locking mechanism is unlocked. After unlocking, since the irregular surface of the wedge structure is set on the outer peripheral surface of the movable member 8, when the movable member 8 rotates, each wedge assembly also rotates around the central axis. In this case, the follower 2 will bring the unlocking member 4, as well as the mating support tray 5 and the unlocking drive 3, to rotate with the movable member 8.

[0099] Figure 19 The diagram illustrates the relative arrangement of the movable member 8 and the fixed member 9 in the first embodiment. The movable member 8 is located inside the fixed member 9, and its outer peripheral surface is irregularly shaped, while the inner peripheral surface of the fixed member 9 is circular, thus forming a wedge-tightening structure. After unlocking, the internal movable member 8 will rotate together with the unlocking member 4, the support tray 5, and the unlocking drive member 3 via the follower 2. Figure 20 A variation of the first embodiment is shown, in which the movable member 8 is located outside the fixed member 9, and the inner peripheral surface of the movable member 8 is an irregular surface, while the outer peripheral surface of the fixed member 9 is a circular surface. Under this configuration, the components can also operate on the same principle as in the first embodiment.

[0100] Next refer to Figures 21 to 28 The basic structure and operating principle of a rotation locking device 100 for a rotatable device according to a second embodiment of the present disclosure are described.

[0101] The main difference between the second embodiment and the first embodiment is that, in the second embodiment, among the opposing surfaces of the fixed member 9 and the movable member 8, the surface of the fixed member 9 is an irregularly shaped surface, while the surface of the movable member 8 is a circular surface. That is, the inner peripheral surface of the fixed member 9 located on the outside is an irregularly shaped surface, while the outer peripheral surface of the movable member 8 located inside the fixed member 9 is a circular surface. This brings about the following change: since the irregularly shaped surface is constructed on the fixed member 9, rather than on the rotatable movable member 8, when the stepless locking mechanism is unlocked and rotated, the wedge-tightening assembly can remain at the irregularly shaped surface without rotating with the movable member 8. Therefore, other components related to the unlocking of the wedge-tightening assembly do not need to rotate. For example, the unlocking member 4 and the unlocking drive member 3 do not need to rotate together, and the support tray 5 does not need to rotate together. In this case, the follower 2 and the mating structure for rotating the unlocking member 4 or the support tray 5 with the movable member 8, such as the first radial protrusion on the support tray 5 and the second radial protrusion on the movable member 8, are omitted. If the conventional "series" scheme, where the drive disc is used for both unlocking and applying driving force to the movable member 8, is adopted, the irregular surface of the wedge-tightening structure can only be set on the movable member 8. However, in the second embodiment, since the unlocking driving force of the unlocking mechanism and the rotational driving force of the movable member 8 are connected in parallel, the component used for unlocking does not need to generate additional rotational driving force, and therefore does not need to rotate with the movable member 8. In this case, the wedge-tightening assembly does not need to move, so the irregular surface of the wedge-tightening structure can be set on the fixed member 9, and the circular surface of the wedge-tightening structure can then be set on the movable member 8. In this respect, the "parallel" scheme of the unlocking driving force of the unlocking mechanism and the rotational driving force of the movable member 8 opens up a new configuration of the wedge-tightening structure that is different from the conventional scheme: among the opposing surfaces of the fixed member 9 and the movable member 8, the surface of the fixed member 9 is an irregular surface, while the surface of the movable member 8 is a circular surface.

[0102] Since the follower 2 is eliminated, in the second embodiment, the rotation limiting structure 2c originally provided on the follower 2 for limiting the rotation stroke of the unlocking member 4 can be provided on the housing 1. Furthermore, the fixing part 2a for fixing one end of the second reset element 6c and the axial protruding groove 2d for the cable mechanism 13 are also provided on the housing 1. Additionally, the through-hole in the tray 5 for guiding the first mating structure 4b of the unlocking member 4 through is constructed as a hole 5c, particularly an arc-shaped hole.

[0103] In other respects, the structure of the second embodiment is basically the same as that of the first embodiment, and therefore reference can be made to the above description of the first embodiment.

[0104] The following reference Figures 29 to 32 The locking and unlocking positions of the stepless locking mechanism in the second embodiment are described. For example... Figure 29 and Figure 30As shown, in the locked position, the cable mechanism 13 is not pulled, so the unlocking member 4 does not perform axial movement. At this time, the two wedge members 7 in the wedge assembly rebound through the elastic member 6b, or are squeezed to both sides, and move away from the elastic member 6b, thereby contacting the inner circumferential surface of the fixed member 9 and the outer circumferential surface of the movable member 8, and thus locking the movable member 8, thereby achieving the locking effect. In addition, as Figure 31 and Figure 32 As shown, when unlocking is required, the cable mechanism 13 can be manually pulled, which pulls the third mating structure 3b of the unlocking drive 3 to rotate via the fixed end. The rotation of the ramp structure 3a on the unlocking drive 3 causes the second mating structure 4a of the unlocking member 4 to move axially toward the movable member 8, i.e., upward. The first mating structure 4b on the unlocking member 4 moves upward as a whole, overcoming the elastic force of the first reset element 6a, which is constructed as a return spring. The first mating structure 4b of the unlocking member 4 overcomes the elastic force of the elastic element 6b and squeezes the wedges 7 on both sides toward the elastic element 6b in the middle, causing the wedges 7 to be squeezed open and disengaged from the wedge structure, thereby disengaging from the locked position, and thus the stepless locking mechanism is unlocked. After unlocking, since the irregular surface of the wedge structure is set on the inner circumferential surface of the fixed member 9, while the circular surface is set on the outer circumferential surface of the movable member 8, the wedge assembly does not need to rotate around the central axis together when the movable member 8 rotates. In this case, only the movable member 8 rotates, while the unlocking member 4, the mating tray 5, and the unlocking drive 3 remain stationary.

[0105] Figure 33 The second embodiment illustrates the relative arrangement of the movable member 8 and the fixed member 9, wherein the movable member 8 is located inside the fixed member 9, and the outer peripheral surface of the movable member 8 is circular, while the inner peripheral surface of the fixed member 9 is irregular, thus forming a wedge-tightening structure. After unlocking, the internal movable member 8 rotates, while the unlocking member 4, the support tray 5, and the unlocking drive member 3 remain stationary. Figure 34 A variation of the second embodiment is shown, in which the movable member 8 is located outside the fixed member 9, and the inner peripheral surface of the movable member 8 is a circular surface, while the outer peripheral surface of the fixed member 9 is an irregular surface. Under this configuration, the components can also operate on the same working principle as the second embodiment.

[0106] The following is for reference. Figures 35 to 39 The basic structure and operating principle of a rotation locking device 100 for a rotatable device according to a third embodiment of the present disclosure are described.

[0107] In the third embodiment, the rotary locking device 100 also includes a stepless locking mechanism, an unlocking mechanism for unlocking the stepless locking mechanism, and a first actuator for providing unlocking driving force. The stepless locking mechanism also includes a rotatable movable member 8, a fixed fixing member 9, and a plurality of wedge-tightening assemblies, wherein the movable member 8 can be connected to the rotatable device. The unlocking mechanism includes an unlocking member 4 and an outer gear disk 41 connected to the unlocking member 4. In this embodiment, the unlocking member 4 and the outer gear disk 41 are engaged with each other by a convex-concave locking structure; in another embodiment, the unlocking member 4 and the outer gear disk 41 can also be conceived as a one-piece structure. Furthermore, in the first embodiment, the rotary locking device 100 also includes a housing 1, an inner cover plate 111, and an outer cover plate 112, wherein the housing 1 is fixedly connected to the inner cover plate 111 and the outer cover plate 112, and the unlocking member 4, the outer gear disk 41, the movable member 8, and the fixing member 9 are accommodated in an installation space defined by the housing 1, the inner cover plate 111, and the outer cover plate 112.

[0108] In the third embodiment, a cavity is also formed between the fixed member 9 and the movable member 8. Multiple wedge-tightening assemblies are disposed within the cavity, and each wedge-tightening assembly includes two wedges 7 and one elastic member 6b, wherein the elastic member 6b in the wedge-tightening assembly is disposed between the two wedges 7 and simultaneously contacts both wedges 7. Besides each wedge-tightening assembly including two wedges 7 and one elastic member 6b, other forms of wedge-tightening member-elastic member arrangements are conceivable; for example, a wedge-tightening assembly may include only one wedge 7 and one elastic member 6b, the elastic member 6b being blocked by a protrusion radially projecting from the irregular surface. Here, the wedge 7 is constructed as a roller. The elastic member 6b can be a spring, such as a metal compression spring, or it can be an elastomeric element made of an elastomer, which can be silicone or rubber. Here, a wedge-tightening structure is formed by the opposing surfaces of the fixed member 9 and the movable member 8, and the wedge-tightening structure is configured to receive the wedge-tightening assembly. The unlocking member 4 is provided with unlocking protrusions 43 that are respectively matched with the wedge-tightening assembly. The unlocking protrusions 43 extend axially and into the cavity. The unlocking member 4 can rotate under the unlocking driving force provided by the first actuator, thereby driving the unlocking protrusions 43 to rotate, thus unlocking the stepless locking mechanism. The rotational movement of the unlocking member 4 can switch the stepless locking mechanism between the locked position and the unlocked position. In the locked position of the stepless locking mechanism, the elastic member 6b acts on the wedge-tightening member 7 and wedges the wedge-tightening member 7 into the wedge-tightening structure. In the unlocked position of the stepless locking mechanism, the wedge-tightening member 7 is pressed against the matched elastic member 6b based on the rotational movement of the unlocking member 4, causing the wedge-tightening member 7 to disengage from the wedge-tightening structure. After the movable member 8 is unlocked by means of the unlocking member 4, the movable member 8 can rotate independently of the unlocking driving force applied to the unlocking member 4. In the third embodiment, when the unlocking member 4 rotates, the corresponding unlocking protrusion 43 can contact and push one of the two wedge members 7 of the corresponding wedge assembly, thereby pressing the wedge member 7 against the elastic member 6b and disengaging it from the wedge structure. The other wedge member 7 can then be used as a rotational support for the member's rotation relative to the fixed member 9. In the third embodiment, the fixed member 9 is arranged radially within the movable member 8, and a cavity is constructed between the outer peripheral surface of the fixed member 9 and the inner peripheral surface of the movable member 8, forming a wedge structure. Furthermore, in the third embodiment, among the opposing surfaces of the fixed member 9 and the movable member 8, the surface of the fixed member 9 is circular, while the surface of the movable member 8 is irregularly shaped.

[0109] Unlike existing technologies, in this disclosure, in the third embodiment, the rotation of the unlocking member 4 is limited to unlocking and is no longer used to drive the movable member 8. For unlocking, in the third embodiment, the first actuator includes an unlocking drive tooth 17, and the unlocking member 4 is provided with a second driven tooth 42, which is constructed on the outer gear disk 41. The unlocking drive tooth 17 meshes with the second driven tooth 42. To drive the movable member 8 to rotate after the continuously variable locking mechanism is unlocked, the rotary locking device 100 further includes a second actuator configured to provide a rotational driving force for rotating the movable member 8 after the continuously variable locking mechanism is unlocked. This second actuator may include a rotary drive tooth 18, and the movable member 8 is provided with a first driven tooth 81, for example, the first driven tooth 81 is provided on the outer periphery of the movable member 8, and the rotary drive tooth 18 meshes with the first driven tooth 81. For the same reasons as in the first embodiment, since the fixed member 9 has a circular surface and the movable member 8 has an irregularly shaped surface, it is necessary to ensure that the rotation of the unlocking member 4 and the movable member 8 is synchronized after the continuously variable locking mechanism is unlocked. This ensures that the unlocking member 4 is always in the unlocked state and does not obstruct the rotation of the movable member 8 while the movable member 8 is rotating. In this regard, the third embodiment uses a shared driver 16 for both the first and second actuators. The unlocking drive gear 17 and the rotation drive gear 18 are mounted on the output shaft 15 of the driver 16 and driven by the same driver 16, thus ensuring synchronized rotation. To ensure that the movable member 8 is unlocked before being rotated, a free travel is allowed between the rotation drive gear 18 and the output shaft 15 of the driver 16. This free travel is designed so that the rotation drive gear 18 can drive the movable member 8 and the unlocking member 4 to rotate synchronously after the unlocking drive gear 17 unlocks the continuously variable locking mechanism. (Refer to...) Figure 39In the third embodiment, a rotary drive gear 19 is connected to the output shaft 15, and a rotary drive tooth 18 is disposed on the rotary drive gear 19. The output shaft 15 has an engaging protrusion 151 that protrudes outward in the radial direction of the output shaft 15, and the rotary drive gear 19 has a recessed portion 191 that can engage with the engaging protrusion 151. In the locked position of the unlocking mechanism, for both rotational directions of the output shaft 15, there is a gap 192 between the corresponding sidewall of the engaging protrusion 151 and the corresponding sidewall of the recessed portion 191 as a free stroke. That is, regardless of whether the output shaft 15 rotates clockwise or counterclockwise, the technical effect of unlocking first and then rotating the movable member 8 can be achieved. If there is a gap 192 between the corresponding sidewalls of the engagement protrusion 151 and the recess 191 only in the clockwise direction of the output shaft 15, the movable member 8 can only be rotated in its counterclockwise direction. It is impossible to unlock first and then rotate the movable member 8 in the other direction, and vice versa. Therefore, if the movable member 8 is to be able to rotate in both directions, it is preferable to... Figure 39 As shown, for both rotational directions of the output shaft 15, gaps 192 are provided on both sides of the protrusion 151. In addition, besides the above arrangement, in another embodiment not shown, a fitting protrusion is provided on the rotary drive gear 19, which protrudes inward along the radial direction of the rotary drive gear 19, for example, and a recess is provided in the output shaft 15 that can cooperate with the fitting protrusion.

[0110] Besides the same driver 16 in the third embodiment, in other embodiments, it is conceivable that the first and second actuators each include a driver 16, and the unlocking drive tooth 17 and the rotation drive tooth 18 are driven by the corresponding driver 16. Here, the driver 16 of the second actuator will start with a delay relative to the driver 16 of the first actuator to ensure that unlocking occurs first, and then the movable member 8 is rotated. However, based on the above-mentioned special structure of the third embodiment of this disclosure (the surface of the fixed member 9 is a circular surface, while the surface of the movable member 8 is an irregular surface), after unlocking, the drivers 16 of the second actuator and the first actuator need to ensure that the unlocking member 4 can rotate synchronously with the movable member 8 after the stepless locking mechanism is unlocked, so that when the movable member 8 rotates, the unlocking member 4 can always unlock the wedge assembly without hindering the rotation of the movable member 8.

[0111] In addition to the above-described embodiment where the surface of the fixed member 9 is circular and the surface of the movable member 8 is irregularly shaped, in other embodiments (see...) Figure 43When the fixed member 9 and the movable member 8 have opposing surfaces, with the fixed member 9 having an irregular shape and the movable member 8 having a circular shape, it is conceivable to provide drivers 16 for the first and second actuators respectively. The drivers 16 of the first and second actuators are configured such that after the stepless locking mechanism unlocks, the driver 16 of the first actuator keeps the unlocking structure unlocked, while the driver 16 of the second actuator drives the movable member 8 to rotate. In this case, synchronization is not a concern because the irregular shape is constructed on the fixed member 9, allowing the movable member 8 to rotate freely after unlocking.

[0112] In the third embodiment, to fix the inner cover plate 111 to the housing 1, a plurality of first bolts 14 are provided on the inner cover plate 111, and a plurality of first bolt holes are provided on the housing 1. The plurality of first bolt holes on the housing 1 are fitted with the plurality of first bolts 14 on the inner cover plate 111, and are fixed by nuts. Furthermore, a plurality of first snap-fit ​​portions 1b are provided on the inner periphery of the housing 1, and a first window portion 11a corresponding to the first snap-fit ​​portions 1b is provided on the inner periphery of the inner cover plate 111. The first snap-fit ​​portions 1b can snap into the first window portion 11a, so that the housing 1 and the inner cover plate 111 are pre-assembled and fixed before final fixing with nuts. Furthermore, to fix the outer cover plate 112, a plurality of second snap-fit ​​portions 1c are also provided on the outer periphery of the housing 1, and a second window portion 112a corresponding to the second snap-fit ​​portions 1c is provided on the outer periphery of the outer cover plate 112, wherein the second snap-fit ​​portions 1c can snap into the second window portion 112a.

[0113] The inner cover plate 11 can be fixedly arranged on the fixing member 9 by a first bolt 14 passing through the inner cover plate 111 and the inner cover plate 111 substantially covers the cavity. An isolation washer 10 is provided between the movable member 8 and the wedge assembly and the inner cover plate 111. The upper end of the isolation washer 10 can isolate the inner cover plate 111 and the outer cover plate 112, while the lower end of the isolation washer 10 can isolate the movable member 8 and the wedge assembly, so as to avoid abnormal noise caused by collision between metal parts and reduce the frictional resistance of metal parts during rotation.

[0114] Similar to the first embodiment, a plurality of second bolts 12 are also provided on the movable member 8. These second bolts 12 can be used to connect the rotatable device, such as the rotatable device frame of the rotatable device.

[0115] The following reference Figures 40 to 42 The locking and unlocking mechanism of the third embodiment is described. For example... Figure 40 Combination Figure 42As shown, in the locked position, for both rotational directions of the output shaft 15, there is a gap 192 between the engaging protrusion 151 on the output shaft 15 (which is a rack-like structure) and the recess 191 in the rotary drive gear 19 as a free stroke. The unlocking protrusion 43 on the unlocking member 4, which protrudes axially, does not contact the two wedges 7. At this time, the elastic member 6b located between the wedges 7 pushes the two wedges 7 apart to both sides, thereby wedging the two wedges 7 into the wedge structure formed between the fixed member 9 and the movable member 8, achieving a locking effect. When unlocking is required, the driver 16 drives the output shaft 15 (which is a rack-like structure) to rotate. Since the unlocking drive tooth 17 on the output shaft 15 meshes with the second driven tooth 42 on the outer gear disk 41, the rotation of the output shaft 15 drives the outer gear disk 41 to rotate. Since the outer gear disk 41 and the unlocking member 4 are assembled into a single unit, the unlocking member 4 rotates together with the outer gear disk 41. Figure 41 Combination Figure 42 As shown, when the unlocking member 4 rotates, the unlocking protrusion 43 on the unlocking member 4 contacts a wedge 7 and presses it against the mating elastic member 6b, so that the wedge 7 is disengaged, thereby achieving the unlocking effect in this direction. After the stepless locking mechanism is unlocked, the output shaft 15 continues to rotate, and the engaging protrusion 151 on the output shaft 15 contacts the side wall of the recess 191 in the rotary drive gear 19, thereby pushing the rotary drive gear 19 to rotate. Since the rotary drive gear 19 meshes with the first driven tooth 81 on the movable member 8, the rotation of the rotary drive gear 19 will drive the movable member 8 to rotate, thereby realizing the function of the movable member 8 rotating around the central axis. In this process, after unlocking, the unlocking drive tooth 17 and the rotary drive tooth 18 are driven by the same driver 16, so the rotation synchronization of the movable member 8 and the unlocking member 4 can be ensured. Thus, when the movable member 8 rotates, the unlocking member 4 always ensures that the stepless locking mechanism is in the unlocked position and does not hinder the rotation of the movable member 8.

[0116] Figures 43 to 45 The stepless locking mechanism and drive stage arrangement of a rotary locking device according to other embodiments of the present disclosure are schematically illustrated, wherein, Figures 43 to 45 Various variations of the third embodiment are shown. Figure 43 In the variation shown, the movable member 8 is located outside the fixed member 9, and the inner circumferential surface of the movable member 8 is circular, while the outer circumferential surface of the fixed member 9 is irregularly shaped. Figure 44 In the variation shown, the movable member 8 is located inside the fixed member 9, and the inner circumferential surface of the fixed member 9 is an irregular shape, while the outer circumferential surface of the movable member 8 is a circular surface. Figure 45In the variant shown, the movable member 8 is located inside the fixed member 9, and the inner circumferential surface of the fixed member 9 is circular, while the outer circumferential surface of the movable member 8 is irregularly shaped. Under this configuration, each component can operate on the same principle as in the third embodiment; therefore, the description above regarding the locking position and the operating principle in the locking position of the third embodiment can be referred to.

[0117] In this disclosure, thanks to the novel design concept, the movable part 8 can rotate independently of the unlocking driving force applied to the unlocking part 4. Therefore, the requirement for the magnitude of the unlocking driving force is reduced. The unlocking driving force is sufficient to unlock the stepless locking mechanism, without having to rotate the movable part 8 along with the entire rotatable device as in the traditional solution. This allows the unlocking driving force to be applied manually or by using a lower-power motor, providing more solutions for unlocking methods, and these solutions are also less expensive.

[0118] Furthermore, this disclosure eliminates the need for welding processes, reducing the heat generated by welding on the contact surfaces of the fixed parts, movable parts, and rollers, thus preventing a decrease in locking capability.

[0119] It should be noted that the terminology used herein is for illustrative purposes only and is not intended to limit the disclosure. The singular forms “a” and “the one” as used herein should include the plural forms unless the context explicitly states otherwise. It is understood that the terms “comprising” and “including,” and other similar terms, when used in the application documents, specifically describe the presence of the stated operation, element, and / or component, without excluding the presence or addition of one or more other operations, elements, components, and / or combinations thereof. The term “and / or” as used herein includes all arbitrary combinations of one or more of the associated listed items. In the description of the drawings, similar reference numerals always denote similar elements.

[0120] The thickness of the elements in the accompanying drawings may be exaggerated for clarity. It is also understood that if an element is described as being on, coupled to, or connected to another element, then the element may be directly formed on, coupled to, or connected to the other element, or there may be one or more intermediate elements between them. Conversely, if the expressions "directly on," "directly coupled to," and "directly connected to" are used herein, it indicates that there is no intermediate element. Other terms used to describe relationships between elements should be interpreted similarly, such as "between" and "directly between," "attached" and "directly attached," "adjacent" and "directly adjacent," etc.

[0121] Terms such as “top,” “bottom,” “above,” “below,” “over,” “under,” etc., are used to describe the relationship of one element, layer, or region relative to another element, layer, or region, as shown in the accompanying drawings. It is understood that these terms should also encompass other orientations of the device in addition to those described in the accompanying drawings.

[0122] It is understood that although the terms "first," "second," etc., may be used here to describe different elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0123] It can also be considered that all the exemplary embodiments disclosed herein can be arbitrarily combined with each other. Furthermore, all individual technical features in this application can be arbitrarily combined with each other, as long as the combined technical features are not contradictory. All technically feasible combinations of features are the technical content described in this application.

[0124] Finally, it should be noted that the above embodiments are merely for understanding this disclosure and do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art can make modifications based on the above embodiments, and these modifications will not depart from the scope of protection of this disclosure.

Claims

1. A rotary locking device (100) configured to lock and unlock rotational movement of a rotatable device, the rotary locking device comprising a continuously variable locking mechanism and an unlocking mechanism for unlocking the continuously variable locking mechanism. The stepless locking mechanism includes: A rotatable movable part (8) and a fixed fixed part (9) are provided, with a cavity formed between the fixed part and the movable part; as well as Multiple wedge-tightening assemblies are disposed within the cavity and include a wedge-tightening element (7) and an elastic element (6b); wherein, A wedge-tightening structure is formed by the opposing surfaces of the fixed and movable parts, and the wedge-tightening structure is configured to receive the wedge-tightening assembly. Its features are, The rotary locking device includes a first actuator for providing an unlocking driving force, and the unlocking mechanism includes an unlocking member (4), wherein the unlocking member is configured to generate an unlocking motion under the action of the unlocking driving force and to unlock only the stepless locking mechanism without driving the rotation of the movable member, wherein, in the locked position of the stepless locking mechanism, the elastic member acts on the wedge and wedges the wedge in the wedge structure, so that the movable member remains stationary relative to the fixed member; in the unlocked position of the stepless locking mechanism, the wedge presses against the matched elastic member based on the unlocking motion of the unlocking member and disengages the wedge from the wedge structure, so that the movable member can rotate independently of the unlocking driving force applied to the unlocking member under the action of another rotary driving force.

2. The rotary locking device according to claim 1, characterized in that, The movable element and the unlocking element are arranged coaxially with each other; and / or The movable part and the unlocking part are arranged overlapping each other along the axial direction of the rotary locking device; and / or The unlocking component is configured as an unlocking disc; and / or Each wedge assembly includes two wedges, wherein an elastic element in the wedge assembly is disposed between the two wedges and simultaneously contacts the two wedges respectively; and / or The wedge is constructed of rollers; and / or The elastic element is constructed as a spring or an elastic element made of an elastomer; and / or The fixed member is arranged radially outside the movable member, and the cavity is constructed between the inner circumferential surface of the fixed member and the outer circumferential surface of the movable member, forming a wedge-tight structure with the inner circumferential surface of the fixed member and the outer circumferential surface of the movable member; or The fixed member is arranged radially within the movable member, the cavity is constructed between the outer peripheral surface of the fixed member and the inner peripheral surface of the movable member, and a wedge-tightening structure is formed by the outer peripheral surface of the fixed member and the inner peripheral surface of the movable member; and / or Among the opposing surfaces of the fixed and movable parts: The fixed part has a circular surface, while the movable part has an irregularly shaped surface, or The fixed part has an irregularly shaped surface, while the movable part has a circular surface.

3. The rotary locking device according to claim 1 or 2, characterized in that, The unlocking element is configured to move axially along the axial direction of the rotary locking device under the action of an unlocking driving force, and to cause the stepless locking mechanism to unlock by means of such axial movement; and / or A first engaging structure (4b) is circumferentially distributed on the surface of the unlocking member facing the movable member. When the unlocking member moves axially toward the movable member in the axial direction, the first engaging structure acts on the wedge of the continuously variable locking mechanism, thereby unlocking the continuously variable locking mechanism; and / or The first mating structure is constructed as a first axial protrusion protruding toward the movable member along the axial direction of the unlocking member; and / or The first axial protrusion of the unlocking member and the opposing surfaces of the movable member are radially spaced apart from each other; and / or The first axial protrusion of the unlocking member and the opposing surfaces of the retaining member are radially spaced apart from each other; and / or Each wedge assembly includes two wedges, with an elastic element disposed between the two wedges, and a chamfered or curved structure provided on the first mating structure for mating with the corresponding wedge in the wedge assembly.

4. The rotary locking device according to claim 1, characterized in that, A support tray (5) is arranged between the movable member and the unlocking member, the support tray being configured to support the wedge-tightening assembly; and / or A first reset element (6a) is arranged between the tray and the unlocking element, the first reset element being configured to reset the unlocking element when it is not unlocking; and / or The surface of the unlocking member facing the movable member is provided with a first mating structure distributed circumferentially for cooperating with the wedge clamping member of the stepless locking mechanism and unlocking the stepless locking mechanism, and a through portion is provided circumferentially at the support tray for the first mating structure to pass through.

5. The rotary locking device according to claim 3, characterized in that, The unlocking mechanism also includes a rotatable unlocking drive (3) arranged on the side of the unlocking member opposite to the movable member, and the unlocking drive is configured to cooperate with the unlocking member and apply an unlocking driving force to the unlocking member and convert its own rotational motion into axial motion of the unlocking member. and / or A ramp structure (3a) is provided circumferentially on one of the faces of the unlocking drive and the unlocking member facing each other, and a second mating structure (4a) is provided circumferentially on the other face of the unlocking drive and the unlocking member facing each other. The ramp structure can cooperate with the second mating structure to convert the rotational motion of the unlocking drive into the axial motion of the unlocking member. and / or The second mating structure is constructed on the unlocking component, and the second mating structure is constructed as a second axial protrusion protruding toward the unlocking drive component along the axial direction of the unlocking drive component; or The second mating structure is constructed on the unlocking drive component, and the second mating structure is constructed as a second axial protrusion protruding toward the unlocking component along the axial direction of the unlocking drive component; and / or A third mating structure (3b) is provided on the surface of the unlocking drive member facing away from the unlocking member, and the rotation locking device includes a rotation limiting structure (2c) for limiting the rotational stroke of the unlocking member. The third mating structure can move within the rotation limiting structure under the action of an external force, thereby limiting the rotational stroke of the unlocking drive member; and / or The third mating structure is constructed as a third axial protrusion that protrudes away from the unlocking component along the axial direction of the unlocking drive component. and / or The first actuator includes a cable mechanism (13), one end of which is fixed to a third mating structure. Triggering the cable mechanism pulls the third mating structure, thereby causing the unlocking drive to rotate, thus unlocking the stepless locking mechanism; and / or The rotary locking device further includes a second reset element (6c), one end of which is connected to the third mating structure and the other end of which is connected to a position fixed relative to the rotary limiting structure. The second reset element is configured to reset the third mating structure after the stepless locking mechanism is unlocked and the cable mechanism is released; and / or The cable mechanism is configured to be manually triggered and manually held; or manually triggered and electrically held; or electrically triggered and electrically held; and / or The second reset element is constructed as a spring or an elastomeric element made of an elastic body; and / or The rotation limiting structure is constructed as an arc-shaped groove, and the third mating structure can pass through the arc-shaped groove and move within the arc-shaped groove with a limited stroke.

6. The rotary locking device according to claim 4, characterized in that, The fixed part has a circular surface, while the movable part has an irregular surface. The rotating locking device also includes a follower (2). The follower and the movable part are engaged in a non-rotatable manner. The follower can drive the unlocking part and the support plate to rotate with the movable part after the stepless locking mechanism is unlocked, and at the same time does not hinder the axial movement of the unlocking part. and / or The unlocking mechanism includes a rotation limiting structure for restricting the rotational travel of the unlocking member, the rotation limiting structure being constructed on the follower member; and / or The follower and the movable member are arranged coaxially with each other; and / or The follower component is configured as a follower rotating disk; and / or A fourth mating structure (2b) is arranged circumferentially on the follower, which engages with a sixth mating structure (4e) on the unlocking member, a sixth mating structure (5b) on the support tray, and a seventh mating structure (8a) on the movable member, so that the follower can drive the unlocking member and the support tray to rotate with the movable member after the stepless locking mechanism is unlocked; and / or The fourth mating structure is constructed as a fourth axial protrusion distributed along the circumference of the follower and protruding toward the movable member along its axial direction, and a first slot (2e) is constructed in the fourth axial protrusion. The fifth mating structure is constructed as a second slot distributed circumferentially along the unlocking member; the sixth mating structure is constructed as a first radial protrusion distributed circumferentially and protruding radially along the support tray; the fourth axial protrusion on the follower mates with the second slot on the unlocking member; and the first slot in the fourth axial protrusion of the follower mates with the first radial protrusion on the support tray; or The fifth mating structure is constructed as a first radial protrusion distributed circumferentially and protruding radially along the unlocking member; the sixth mating structure is constructed as a second slot distributed circumferentially along the support tray; the first slot in the fourth axial protrusion of the follower mates with the first radial protrusion on the unlocking member; the fourth axial protrusion on the follower mates with the second slot on the support tray; or The fifth and sixth mating structures are respectively constructed as first radial protrusions distributed circumferentially and protruding radially along the unlocking member and the support tray, respectively; the first slot in the fourth axial protrusion of the follower mates with the first radial protrusions on the unlocking member and the support tray; or The fifth and sixth mating structures are respectively constructed as second slots distributed circumferentially along the unlocking member and the support tray, and the fourth axial protrusion on the follower mates with the second slots on the unlocking member and the support tray, respectively; and The seventh mating structure is constructed as a second radial protrusion distributed circumferentially and protruding radially along the movable member, wherein the first slot in the fourth axial protrusion of the follower mates with the second radial protrusion on the movable member; and / or The fourth axial protrusion of the follower and the opposing surfaces of the fixed member are radially spaced apart; and / or The fixed member has an irregularly shaped surface, while the movable member has a circular surface, and when the stepless locking mechanism is unlocked and rotated, the unlocking member and the support tray are configured not to rotate relative to the fixed member and not to rotate with the movable member.

7. The rotary locking device according to claim 1 or 2, characterized in that, The rotary driving force for rotating the movable part after the continuously locking mechanism is unlocked can be applied manually; and / or The rotary locking device further includes a second actuator configured to provide a rotary driving force for rotating the movable member after the continuously variable locking mechanism has been unlocked; and / or The second actuator includes a rotary drive gear (18), and the movable member is provided with a first driven gear (81), the rotary drive gear meshing with the first driven gear; and / or The fixed member is arranged radially outside the movable member, and the first driven tooth is provided on the inner circumference of the movable member; or The fixed member is arranged radially within the movable member, and the first driven tooth is provided on the outer periphery of the movable member; and / or The unlocking member is provided with unlocking protrusions (43) that are respectively matched with the wedge assembly. The unlocking protrusions extend axially and are inserted into the cavity. The unlocking member can rotate to drive the unlocking protrusions to rotate, thereby unlocking the stepless locking mechanism; and / or The first actuator includes an unlocking drive tooth (17), and the unlocking member is provided with a second driven tooth (42), the unlocking drive tooth meshing with the second driven tooth; and / or The second actuator includes a rotary drive gear, and the movable member is provided with a first driven gear, the rotary drive gear meshing with the first driven gear; and / or The first and second actuators each include a driver (16), and the unlocking drive gear and the rotating drive gear are driven by their respective drivers; and / or Of the opposing surfaces of the fixed member and the movable member, the fixed member has a circular surface, while the movable member has an irregularly shaped surface. Furthermore, the drivers of the first and second actuators are respectively configured such that the unlocking member can rotate synchronously with the movable member after the continuously variable locking mechanism is unlocked; or Of the opposing surfaces of the fixed member and the movable member, the fixed member has an irregularly shaped surface, while the movable member has a circular surface. The actuators of the first and second actuators are respectively configured such that, after the continuously variable locking mechanism unlocks, the actuator of the first actuator keeps the unlocking structure unlocked, while the actuator of the second actuator drives the movable member to rotate; and / or Among the opposing surfaces of the fixed member and the movable member, the fixed member has a circular surface, while the movable member has an irregularly shaped surface. The first and second actuators share a single driver (16). Unlocking drive teeth and rotary drive teeth are mounted on the output shaft of the driver and driven by the same driver. The unlocking drive teeth and rotary drive teeth are configured such that after the unlocking drive teeth unlock the continuously variable locking mechanism, the rotary drive teeth can drive the movable member and the unlocking member to rotate synchronously; and / or There is a free travel between the rotary drive teeth and the output shaft of the driver. This free travel is designed so that the rotary drive teeth can drive the movable part and the unlocking part to rotate synchronously after the unlocking drive teeth have unlocked the continuously variable locking mechanism; and / or A rotary drive gear (19) is connected to the output shaft. A rotary drive tooth is provided on the rotary drive gear. A radially protruding engagement protrusion (151) is provided on one of the output shaft and the rotary drive gear, and a recessed portion (191) that can cooperate with the engagement protrusion is provided on the other of the output shaft and the rotary drive gear. In the locked position of the unlocking mechanism, a gap (192) exists between the corresponding sidewall of the protrusion and the corresponding sidewall of the recessed portion as a free stroke for the corresponding rotation direction of the output shaft.

8. The rotary locking device according to any one of claims 1 to 6, characterized in that, The rotatable device is configured as a rotatable component inside the transport vehicle; and / or The support tray is arranged coaxially with the movable and unlocking components; and / or The unlocking drive component, movable component, and unlocking component are arranged coaxially with each other; and / or The unlocking drive is configured as an unlocking disk; and / or The unlocking element is configured such that when the unlocking motion is generated under the action of the unlocking driving force, the movable element remains stationary; when the movable element rotates, the unlocking element remains stationary relative to the movable element; and / or A ramp matching the ramp structure is provided at the top of the second axial protrusion.

9. A rotatable device assembly for use inside a transport vehicle, characterized in that, The rotatable device assembly includes a rotatable device and a rotation locking device according to any one of claims 1 to 8, wherein the rotatable device is fixedly connected to the movable part of the rotation locking device, and the rotation locking device is capable of locking and unlocking the rotational movement of the rotatable device.

10. The rotatable device assembly according to claim 9, characterized in that, The rotatable device includes or is configured as one of a seat frame, a center console, or an armrest box.

Images