Rotary locking mechanism with oil groove and rotary seat

Abstract

The utility model relates to a kind of rotary locking mechanism and rotary chair with oil groove, the rotary locking mechanism is used to lock and unlock the rotary movement of rotatable device, the rotary locking mechanism includes: slot housing, first chamber and second chamber are formed with in it along axial communication;Brake ring and clamping piece are arranged in first chamber, and third chamber is formed between brake ring and clamping piece;Multiple roller-elastic member combined components are arranged in third chamber;Driving disc is arranged in slot housing, and it is at least partially housed in first chamber and second chamber;Wherein, first grease is arranged in third chamber, second grease is arranged in second chamber, oil groove for receiving first grease is opened on the inner wall of slot housing, to prevent the first grease from flowing into second chamber and mixing with second grease.The utility model solves the problem that the existing rotary locking mechanism is prone to oil mixing.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a rotary locking mechanism with an oil groove and a rotary seat. Background Technology

[0002] With the rapid development of the automotive industry, the demand for "emotional value" is increasing in high-end or luxury vehicles, and users expect the passenger cabin space to offer more practical and unique functions. The demand for rotating seats is one such example. Rotating seats typically include the seat itself and a rotation locking mechanism for controlling its rotation. Furthermore, this rotation locking mechanism should also be able to rotate and lock other devices that require rotation.

[0003] See Figures 3-5 In order to clearly describe the overall architecture of the existing rotary locking mechanism, this utility model is used in conjunction with... Figure 1 and Figure 2 As shown, existing rotary locking mechanisms generally include a slotless housing 1' (corresponding to...) Figure 1 and Figure 2 The seat comprises a grooved housing 1', a clamping member 7, a brake ring 8, a drive disc 4, and multiple roller-elastic member assemblies. The grooveless housing 1' has a first chamber 1a and a second chamber 1b connected axially (i.e., along the rotation axis of the seat). The clamping member 7 and the brake ring 8 are both disposed within the first chamber 1a, and a third chamber 1c is formed between the brake ring 8 and the clamping member 7. The roller-elastic member assembly is disposed within the third chamber 1c and includes two rollers 6 and an elastic member 5. The surfaces of the brake ring 8 and the clamping member 7 facing each other form a wedge structure, configured to receive the roller-elastic member assembly and wedge the two rollers 6 within it. The drive disk 4 is disposed within the grooveless housing 1' and is at least partially housed in the first chamber 1a and at least partially housed in the second chamber 1b. The drive disk 4 is tractively connected to the clamping member 7 so that the clamping member 7 can rotate when the drive disk 4 is driven by the motor. The drive disk 4 is provided with a drive protrusion 4b that matches the roller-elastic member assembly. The drive protrusion 4b extends axially and extends into the third chamber 1c to contact the roller-elastic member assembly when it rotates with the drive disk 4, thereby releasing the wedging structure from wedging one of the two rollers 6 in the roller-elastic member assembly.

[0004] To enhance the locking strength of the wedge-locking structure and rollers within the first chamber 1a during locking, a first grease (such as...) is typically provided between the clamping member 7, the brake ring 8, and the roller-elastic member assembly. Figure 5(As shown by the red wavy line in the middle); Similarly, in order to reduce the frictional resistance between the transmission components between the motor and the drive disk 4 and the grooveless housing 1' when the drive disk 4 rotates, a second grease (such as...) is usually provided in the second chamber 1b. Figure 5 (As shown by the red dashed line in the middle). However, since the first chamber 1a and the second chamber 1b are axially connected and the first chamber 1a is located above the second chamber 1b, the first grease may flow downward into the second chamber 1b through the gap between the drive disc 4 and the grooveless housing 1' and mix with the second grease. The flow path is as follows: Figure 5 As shown.

[0005] It should be noted that the parts with the same reference numerals in the above description are only used to clearly describe the overall structure of the existing rotary locking mechanism, and do not indicate that the specific structure of each part is the same as the specific structure of the parts with the same reference numerals in this utility model. For example, the grooveless housing in the existing rotary locking mechanism does not have an oil groove. Utility Model Content

[0006] To solve the above problems, this utility model provides a rotary locking mechanism with an oil groove and a rotary seat. By setting an oil groove in the rotary locking mechanism, the two types of grease can be prevented from mixing.

[0007] This utility model is achieved through the following solution: a rotary locking mechanism with an oil groove, the rotary locking mechanism being configured to lock and unlock the rotational movement of a rotatable device, the rotary locking mechanism comprising:

[0008] A grooved housing, wherein a first chamber and a second chamber are formed within the grooved housing and communicate along the axial direction;

[0009] A brake ring and a clamping member are disposed in the first chamber, and a third chamber is formed between the brake ring and the clamping member;

[0010] Multiple roller-elastic element assemblies are disposed in the third chamber, each roller-elastic element assembly comprising two rollers and an elastic element;

[0011] A drive disk is disposed within the grooved housing, the drive disk being at least partially housed in the first chamber and at least partially housed in the second chamber, and the drive disk is tractively connected to the clamping member so that the clamping member can be rotated when the drive disk rotates;

[0012] in,

[0013] The third chamber is provided with a first grease, and the second chamber is provided with a second grease. The inner wall of the grooved shell is provided with an oil groove for receiving the first grease, so as to prevent the first grease from flowing into the second chamber and mixing with the second grease.

[0014] The surfaces of the brake ring and the clamping member facing each other form a wedge structure. The wedge structure is configured to receive the roller-elastic member assembly and wedge two rollers in the roller-elastic member assembly. The drive disk is provided with a drive protrusion that matches the roller-elastic member assembly. The drive protrusion extends axially and into the third chamber to contact the roller-elastic member assembly when rotating with the drive disk, thereby releasing the wedge structure from wedge-tightening one of the two rollers in the roller-elastic member assembly.

[0015] A further improvement of this utility model is that the brake ring is arranged radially outside the clamping member, the third chamber is constructed between the inner circumferential surface of the brake ring and the outer circumferential surface of the clamping member, and the wedge-tightening structure is formed by the inner circumferential surface of the brake ring and the outer circumferential surface of the clamping member; or

[0016] The brake ring is arranged radially within the clamping member, and the third chamber is constructed between the outer peripheral surface of the brake ring and the inner peripheral surface of the clamping member, forming the wedge structure by the outer peripheral surface of the brake ring and the inner peripheral surface of the clamping member.

[0017] A further improvement of this utility model is that the inner peripheral wall of the grooved housing is provided with a stepped structure that protrudes radially, and the stepped structure is located below the driving protrusion in the axial direction.

[0018] A further improvement of this utility model is that the oil groove is formed on the stepped structure, and the opening of the oil groove is oriented axially.

[0019] A further improvement of this utility model is that the side of the drive protrusion of the drive disc facing the brake ring is radially spaced apart from the brake ring to form a first gap, and the groove of the oil groove is directly opposite the first gap.

[0020] A further improvement of this invention is that the side of the driving protrusion of the driving disk facing the clamping member is radially spaced apart from the clamping member to form a second gap.

[0021] A further improvement of this utility model is that the drive disk includes a main body and a drive protrusion disposed on one side of the main body, a third gap is formed between the outer peripheral surface of the main body and the inner peripheral surface of the grooved housing, and the groove opening of the oil groove is directly opposite the third gap.

[0022] A further improvement of this invention is that the first grease and the second grease are different greases.

[0023] A further improvement of this utility model is that the first grease is disposed between the clamping member, the brake ring and the roller-elastic member assembly to adapt the locking strength.

[0024] A further improvement of this utility model is that the rotary locking mechanism is equipped with a drive motor, which can drive the drive disk to rotate.

[0025] A further improvement of this utility model is that the rotary locking mechanism further includes a transmission component for transmitting the rotational motion of the drive motor to the drive disk. The transmission component includes a gear component that can be fixedly mounted on the drive disk and a rack fixedly connected to the output end of the drive motor. The rack and the gear component mesh with each other.

[0026] A further improvement of this invention is that the second grease is disposed between the gear component and the grooved housing to reduce the frictional resistance between the gear component and the grooved housing.

[0027] This utility model also protects a rotating seat, which includes the aforementioned rotating locking mechanism with an oil groove.

[0028] This invention utilizes a first grease to adapt the locking strength between the clamping member and the brake ring, which is formed by the roller-elastic component assembly, thus meeting the requirements for both locking and unlocking states. A second grease reduces the frictional resistance between the external gear and the grooved housing during drive disc rotation. Furthermore, the first and second gaps prevent unnecessary radial contact between the drive disc, clamping member, brake ring, and grooved housing, avoiding or reducing internal driving resistance during rotation. Additionally, the oil groove prevents the two greases from mixing, allowing each grease to fully utilize its respective performance, thereby ensuring the service life of the rotary locking mechanism. Attached Figure Description

[0029] Figure 1 A schematic diagram of the assembled structure of the rotary locking mechanism of this utility model is shown.

[0030] Figure 2 An exploded view of the rotary locking mechanism of this utility model is shown.

[0031] Figure 3 A partial cross-sectional view of the grooveless shell without an oil trough is shown.

[0032] Figure 4 A partial cross-sectional view of the rotary locking mechanism without an oil trough is shown.

[0033] Figure 5 A schematic diagram showing the positions of the first and second greases in a rotary locking mechanism without an oil trough is provided.

[0034] Figure 6 A schematic diagram of the roller-elastic component assembly in the locked state is shown.

[0035] Figure 7 A schematic diagram of the roller-elastic component assembly in the unlocked state is shown.

[0036] Figure 8 A schematic diagram of the assembly state of the rotary locking mechanism of this utility model is shown.

[0037] Figure 9 A partial cross-sectional view of a grooved housing with an oil tank is shown in one embodiment of the present invention.

[0038] Figure 10 The diagram shows a comparison of the grooved shell structure with an oil trough in one embodiment and another embodiment of the present invention.

[0039] Figure 11 A partial cross-sectional view of a rotary locking mechanism with an oil tank in one embodiment of the present invention is shown.

[0040] Figure 12 The diagram shows the positions of the first and second greases in a rotary locking mechanism with an oil tank in one embodiment of the present invention.

[0041] Figure 13 A partial cross-sectional view of a grooved housing with an oil trough is shown in another embodiment of the present invention.

[0042] Figure 14 A partial cross-sectional view of a rotary locking mechanism with an oil tank in another embodiment of the present invention is shown.

[0043] Figure 15 This diagram shows the positions of the first and second greases in a rotary locking mechanism with an oil tank in another embodiment of the present invention.

[0044] In the diagram: 1', slotless housing; 1, slotted housing; 1a, first chamber; 1b, second chamber; 1c, third chamber; 1d, rack hole; 1e, second motor bolt hole; 1f, snap-fit ​​part; 1g, stepped structure; 1h, oil groove; 2, external gear; 2a, recessed mating part; 3, rack; 4, drive disc; 41, main body; 42, protrusion; 4a, protruding mating part; 4b, drive protrusion; 5, elastic element; 6, roller; 7, clamping element; 7a, radial protrusion; 8, brake ring; 9, isolation washer; 10, cover plate; 10a, window part; 11, first bolt; 12, drive motor; 12a, motor hole; 12b, first motor bolt hole; 13, motor bolt; 14, second bolt. Detailed Implementation

[0045] To address the problem of oil mixing in existing rotary locking mechanisms, this invention provides a rotary locking mechanism with an oil groove and a rotary seat. The following detailed description, in conjunction with the accompanying drawings, provides further insights into this rotary locking mechanism with an oil groove and a rotary seat.

[0046] See Figures 1-2 and Figure 8 As shown, the rotary locking mechanism includes a grooved housing 1, an external gear 2, a drive disc 4, multiple roller-elastic element assemblies, a clamping element 7, a brake ring 8, and a cover plate 10. The grooved housing 1 contains a first chamber 1a and a second chamber 1b that communicate axially (i.e., in the direction of the seat's rotation axis L). The grooved housing 1 and the cover plate 10 are fixedly connected together. The drive disc 4, roller-elastic element assemblies, clamping element 7, and brake ring 8 are accommodated within an installation space defined by the grooved housing 1 and the cover plate 10. The brake ring 8 and clamping element 7 are located within the first chamber 1a, and the drive disc 4 is at least partially accommodated in the first chamber 1a and at least partially in the second chamber 1b. This rotary locking mechanism is configured to lock and unlock the rotational movement of a rotatable device, particularly a seat. The seat can be a seat for a transportation vehicle. Of course, the seat can also be a seat in other application scenarios. The seat and the rotary locking mechanism can constitute a seat assembly. The transportation vehicle can be, for example, a motor vehicle, such as a passenger car. The means of transport can also be other land-based, air-based, or water-based vehicles. For passenger vehicles, the means of transport disclosed herein is particularly suitable for mid-to-large-sized SUVs or MPVs. Of course, the rotary locking mechanism of this disclosure can also be used in other applications requiring a rotary locking mechanism, in addition to its use in means of transport.

[0047] To fix the cover plate 10 to the grooved housing 1, a plurality of first bolts 11 are provided on the cover plate 10, and a plurality of first bolt holes are provided on the grooved housing 1. The plurality of first bolt holes on the grooved housing 1 are fitted into the plurality of first bolts 11 on the cover plate 10, and are fixed by nuts. In addition, a plurality of snap-fit ​​parts 1f are provided on the outer periphery of the grooved housing 1, and a window part 10a corresponding to the snap-fit ​​parts 1f is provided on the outer periphery of the cover plate 10. The snap-fit ​​parts 1f can be snapped into the window part 10a, so that the grooved housing 1 and the cover plate 10 are pre-assembled and fixed before being finally fixed by nuts.

[0048] The clamping member 7 is arranged radially within the brake ring 8. A plurality of second bolts 14 are provided on the clamping member 7, which can be used to connect rotatable devices, such as the seat frame of a seat.

[0049] like Figure 6As shown, a third chamber 1c is formed between the inner circumferential surface of the brake ring 8 and the outer circumferential surface of the clamping member 7. The roller-elastic member assembly is accommodated in the third chamber 1c. The roller-elastic member assembly can be a combination of two rollers 6 and one elastic member 5, or it can be a combination of two rollers 6 and two elastic members 5.

[0050] A drive protrusion 4b is provided on the drive disc 4 to mate with the roller-elastic element assembly. The drive protrusion 4b extends axially and into the third chamber 1c. In this embodiment, radial protrusions 7a are distributed circumferentially on the clamping member 7, extending radially toward the brake ring 8. Between any two adjacent radial protrusions 7a, there is one roller-elastic element assembly and two drive protrusions 4b, with the roller-elastic element assembly arranged between the two mating drive protrusions 4b. It is conceivable that other forms of roller-elastic element assemblies in the prior art rotary locking mechanism, not limited to the number and arrangement of rollers, elastic elements, drive protrusions, and radial protrusions, can also be applied to this solution.

[0051] Cooperate Figure 6 and Figure 7 As shown, a wedge-clamping structure is formed by the portion of the inner circumferential surface of the brake ring 8 and the outer circumferential surface of the clamping member 7 between any adjacent drive protrusions 4b. This wedge-clamping structure is configured to receive and wedge the two rollers 6 in the roller-elastic member assembly. Here, the clamping member 7, the drive disc 4, the roller-elastic member assembly, and the brake ring 8 constitute the main functional components of the rotary locking mechanism. Figure 6 As shown, when the drive disc 4 is not rotating, the two rollers 6 in the roller-elastic element assembly are pushed apart to both sides by the elastic restoring action of the elastic element 5, thereby wedging the two rollers 6 into the wedging structure, thus locking the clamping element 7 relative to the brake ring 8, and thereby locking a rotatable device, such as a seat lock, fixed to the clamping element 7. Figure 7As shown, when the drive disc 4 rotates, one of the two drive protrusions 4b of the drive disc 4 contacts the roller-elastic element assembly, thereby releasing one of the other rollers 6 that is wedged by the wedging structure (which roller 6 is released depends on the rotation direction of the drive disc 4; the released roller 6 should be facing the rotation direction), while the other of the two drive protrusions 4b contacts and pushes the radial protrusion 7a, so that the clamping member 7 rotates with the rotation of the drive disc 4. During this process, the other roller 6 in the roller-elastic element assembly acts as a rotation support for the clamping member 7. That is, when the drive disc 4 drives the clamping member 7 to rotate, the clamping member 7 can rotate freely around the rotation axis within the brake ring 8 with the other roller 6 as the rotation support. It is understood that the radial protrusion 7a is only one form of enabling the drive protrusion 4b to push the clamping member 7, and the existing structural forms on the clamping member 7 that can be pushed by the drive protrusion 4b can also be applied to this solution.

[0052] like Figure 2 , Figure 8 and Figure 11 As shown, a separate external gear 2 is arranged on the drive disk 4 to drive its rotation. The external gear 2 is hollow and includes a recessed mating portion 2a on its inner circumference. The drive disk 4 includes a main body 41, a drive protrusion 4b extending axially outward on one side of the main body 41, and a protruding portion 42 protruding axially outward on the other side of the main body 41. A protruding mating portion 4a that mates with the recessed mating portion 2a is provided on the outer circumference of the protruding portion 42. The protruding portion 42 of the drive disk 4 can be inserted into the hollow portion of the external gear 2, thereby forming a form-locking mating structure between the recessed mating portion 2a and the protruding mating portion 4a. In another embodiment, a technical solution where the drive disk 4 and the external gear 2 are integrally constructed is also conceivable. Furthermore, in another embodiment, an internal gear with an internal gear is also conceivable. Figure 8As can be seen, the rotary locking mechanism may further include a drive motor 12, which is mounted, for example, on a bracket portion integrally constructed on the slotted housing 1 via a motor bolt 13, wherein the motor bolt 13 can pass through a first motor bolt hole 12b in the drive motor 12 and a second motor bolt hole 1e in the slotted housing 1. To transmit the rotational motion of the drive motor 12 to the external gear 2, which is connected to the drive disc 4, the rotary locking mechanism may include a rack 3, one side of which is connected to the drive motor 12, and the other side meshing with the teeth of the external gear 2, wherein the other side can pass through a rack hole 1d in the slotted housing 1 and a motor hole 12a in the motor. A mating tooth that interacts with the tooth on the said side of the rack 3 may exist within the motor hole 12a. Here, the portion of the slotted housing with the rack hole 1a and the portion with the second motor bolt hole 1b can jointly serve as a bracket portion for the drive motor 12.

[0053] like Figure 2 , Figure 8 and Figure 11 As shown, the cover plate 10 can be fixed to the brake ring 8 by a first bolt 11 passing through the cover plate 10, and the cover plate 10 substantially covers the third chamber 1c. A spacer 9 is provided between the clamping member 7 and the roller-elastic member assembly and the cover plate 10, thereby providing a spacer 9 that... Figure 11 The upper end shown can isolate the cover plate 10 and the isolation gasket 9 as shown. Figure 11 The lower end shown can isolate the clamping member 7 and the roller 6 in the roller-elastic member assembly to avoid abnormal noise caused by collision between the metal parts and to reduce the frictional resistance of the metal parts during rotation.

[0054] exist Figures 11-12 The arrangement of the external gear 2, drive disc 4, roller-elastic component assembly, clamping component 7, brake ring 8, isolation washer 9 and cover plate 10 relative to each other can be seen, as well as the setting positions of step structure 1g and oil groove 1h.

[0055] Then, with the help of Figure 11 The relative positional relationship between the drive protrusion 4b of the drive disc 4, the brake ring 8, and the clamping member 7 is described. To avoid or reduce internal driving resistance, the side of the drive protrusion 4b facing the brake ring 8 is radially spaced from the inner circumferential surface of the brake ring 8 to form a first gap h1. Thus, when the drive disc 4 drives the clamping member 7 to rotate, the drive protrusion 4b of the drive disc 4 and the brake ring 8 are in a non-contact state radially. Furthermore, the side of the drive protrusion 4b of the drive disc 4 facing the clamping member 7 is radially spaced from the outer circumferential surface of the clamping member 7 to form a second gap h2. Thus, during the unlocking process of the roller-elastic member assembly, the drive protrusion 4b of the drive disc 4 and the clamping member 7 are in a non-contact state radially.

[0056] It is important to note that in this embodiment, the third chamber 1c is provided with a first grease (such as...). Figure 12 (As shown by the red wavy line in the middle), this first grease is adapted to achieve locking strength between the clamping member 7 and the brake ring 8 through the roller-elastic assembly, while also taking into account the requirement of reducing frictional resistance when the clamping member 7 and the roller-elastic assembly rotate relative to the brake ring 8. In other words, the first grease should be able to simultaneously meet the needs of both locking and unlocking states between the clamping member 7, the brake ring 8, and the roller-elastic assembly. The second chamber 1b is provided with a second grease (such as...) to reduce the frictional resistance between the external gear 2 and the grooved housing 1 when the drive disc 4 rotates. Figure 12 (As shown by the red dashed line). Due to their different functions, the first and second greases are usually made of different types of grease. To avoid mixing of the first and second greases, an oil trough 1h is provided on the inner peripheral wall of the housing 1 to receive the first grease. This rotary locking mechanism is arranged vertically along the rotation axis, and the first chamber 1a is located above the second chamber 1b. The first grease in the first chamber 1a easily flows into the second chamber 1b. Therefore, in this embodiment, as... Figure 9 , Figure 10 Figure (a) and Figures 11-12 As shown, the first grease is disposed between the clamping member 7, the brake ring 8, and the roller-elastic member assembly. A stepped structure 1g protruding radially inward is provided on the inner peripheral wall of the grooved housing 1. The stepped structure 1g is located axially below the drive protrusion 4b. The oil groove 1h is opened on the stepped structure 1g, and the groove opening of the oil groove 1h is axially oriented. A third gap Δ is formed between the outer peripheral surface of the main body 41 of the drive disc 4 and the inner peripheral surface of the grooved housing 1. The third gap Δ and the first gap h1 constitute a seepage path. The groove opening of the oil groove 1h is directly opposite the third gap Δ to receive the first grease flowing through the third gap Δ to the second chamber 1b, so as to prevent the first grease from mixing with the second grease. The third gap Δ can be in the form shown in the figure, or it can be in other forms. For example, the third gap Δ and the first gap h1 can form a straight seepage path. For a straight seepage path, it can also form a broken-line seepage path. The width of the third gap Δ can be greater than or equal to the width of the first gap h1. The (inner / outer) circumferential surface of the main body 41 and the inner circumferential surface of the oil tank shell 1 can be parallel to the axial direction or inclined to the axial direction. For a straight seepage path, when the widths of the third gap Δ and the first gap h1 are equal, the third gap Δ can be used as an extension of the first gap h1. In this case, it can be considered that the opening of the oil tank 1h is directly opposite the first gap h1. In summary, the principle for setting the position of the oil tank 1h is that the opening of the oil tank 1h should be directly opposite the end port of the seepage path from the first grease to the second chamber 1b.

[0057] In another embodiment, see Figure 10 Figure (b) and 13~ Figure 15 As shown, it is also conceivable that the brake ring 8 is arranged radially within the clamping member 7, and the third chamber 1c is constructed between the outer peripheral surface of the brake ring 8 and the inner peripheral surface of the clamping member 7. The wedge-tightening structure is formed by the portion of the outer peripheral surface of the brake ring 8 and the inner peripheral surface of the clamping member 7 located between any adjacent driving protrusions 4b (which are blocked by the elastic member 5 and therefore not shown in the figure). To avoid or reduce the driving resistance, this embodiment also provides a first gap h1 and a second gap h2 as described in the previous embodiment. However, since the brake ring 8 is arranged radially within the clamping member 7, the positions of these two gaps differ from those in the previous embodiment. In this embodiment, as shown... Figure 14 As shown, the first gap h1 (not shown in the figure) is formed between the side of the drive protrusion 4b of the drive disk 4 facing the brake ring 8 and the outer peripheral surface of the brake ring 8, so that when the drive disk 4 drives the clamping member 7 to rotate, the drive protrusion 4b of the drive disk 4 and the brake ring 8 are in a non-contact state in the radial direction. The second gap h2 (not shown in the figure) is formed between the side of the drive protrusion 4b of the drive disk 4 facing the clamping member 7 and the inner peripheral surface of the clamping member 7, so that during the unlocking process of the roller-elastic member assembly, the drive protrusion 4b of the drive disk 4 and the clamping member 7 are in a non-contact state in the radial direction. Correspondingly, a third gap Δ is also formed between the inner peripheral surface of the main body 41 of the drive disk 4 and the inner peripheral wall of the grooved housing 1. The groove opening of the oil groove 1h is directly opposite the third gap Δ, used to receive the first grease (such as oil grease) flowing through the third gap Δ to the second chamber 1b. Figure 15 (As shown by the red wavy line in the middle), to prevent the first grease from mixing with the second grease (such as...). Figure 15 (As shown by the red dashed line in the middle) Mixing. The position of the oil tank 1h is also set so that the tank opening is directly opposite the end port of the seepage path of the first grease flowing into the second chamber 1b.

[0058] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0059] In the description of this utility model, it should be understood that the terms "upper", "lower", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0060] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0061] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A rotary locking mechanism with an oil groove, the rotary locking mechanism being configured to lock and unlock the rotational movement of a rotatable device, characterized in that, The rotary locking mechanism includes: A grooved housing, wherein a first chamber and a second chamber are formed within the grooved housing and communicate along the axial direction; A brake ring and a clamping member are disposed in the first chamber, and a third chamber is formed between the brake ring and the clamping member; Multiple roller-elastic element assemblies are disposed in the third chamber, each roller-elastic element assembly comprising two rollers and an elastic element; A drive disk is disposed within the grooved housing, the drive disk being at least partially housed in the first chamber and at least partially housed in the second chamber, and the drive disk is tractively connected to the clamping member so that the clamping member can be rotated when the drive disk rotates; in, The third chamber is provided with a first grease, and the second chamber is provided with a second grease. The inner wall of the grooved shell is provided with an oil groove for receiving the first grease, so as to prevent the first grease from flowing into the second chamber and mixing with the second grease. The surfaces of the brake ring and the clamping member facing each other form a wedge structure. The wedge structure is configured to receive the roller-elastic member assembly and wedge two rollers in the roller-elastic member assembly. The drive disk is provided with a drive protrusion that matches the roller-elastic member assembly. The drive protrusion extends axially and into the third chamber to contact the roller-elastic member assembly when rotating with the drive disk, thereby releasing the wedge structure from wedge-tightening one of the two rollers in the roller-elastic member assembly.

2. The rotary locking mechanism with an oil groove according to claim 1, characterized in that, The brake ring is arranged radially outside the clamping member, and the third chamber is constructed between the inner circumferential surface of the brake ring and the outer circumferential surface of the clamping member, forming the wedge-clamping structure; or The brake ring is arranged radially within the clamping member, and the third chamber is constructed between the outer peripheral surface of the brake ring and the inner peripheral surface of the clamping member, forming the wedge structure by the outer peripheral surface of the brake ring and the inner peripheral surface of the clamping member.

3. The rotary locking mechanism with an oil groove according to claim 2, characterized in that, The grooved housing has a radially protruding stepped structure on its inner peripheral wall, and the stepped structure is located axially below the driving protrusion.

4. The rotary locking mechanism with an oil groove according to claim 3, characterized in that, The oil groove is formed on the stepped structure, and the opening of the oil groove is oriented axially.

5. The rotary locking mechanism with an oil groove according to claim 4, characterized in that, The side of the drive protrusion of the drive disc facing the brake ring is radially spaced apart from the brake ring to form a first gap, and the groove of the oil groove is directly opposite the first gap.

6. The rotary locking mechanism with an oil groove according to claim 5, characterized in that, The side of the drive protrusion of the drive disc facing the clamping member is radially spaced apart from the clamping member to form a second gap.

7. The rotary locking mechanism with an oil groove according to claim 4, characterized in that, The drive disc includes a main body and a drive protrusion disposed on one side of the main body. A third gap is formed between the outer peripheral surface of the main body and the inner peripheral surface of the grooved housing. The groove opening of the oil groove is directly opposite the third gap.

8. The rotary locking mechanism with an oil groove according to claim 1, characterized in that, The first grease and the second grease are different greases.

9. The rotary locking mechanism with an anti-mixing oil groove according to claim 1, characterized in that, The first grease is disposed between the clamping member, the brake ring, and the roller-elastic member assembly to adapt the locking strength.

10. The rotary locking mechanism with an oil groove according to claim 1, characterized in that, The rotary locking mechanism is equipped with a drive motor, which can drive the drive disk to rotate.

11. The rotary locking mechanism with an oil groove according to claim 10, characterized in that, The rotary locking mechanism further includes a transmission assembly for transmitting the rotational motion of the drive motor to the drive disk. The transmission assembly includes a gear component that can be fixedly mounted on the drive disk and a rack fixedly connected to the output end of the drive motor. The rack and the gear component mesh with each other.

12. The rotary locking mechanism with an oil groove according to claim 11, characterized in that, The second grease is disposed between the gear component and the grooved housing to reduce the frictional resistance between the gear component and the grooved housing.

13. A rotating seat, characterized in that, Includes the rotary locking mechanism with an oil groove as described in any one of claims 1 to 12.

Images