Spindle lock

Abstract

This application discloses an axle head lock, comprising: a transmission assembly, one end of which is rotatably engaged with the drive unit, and the other end of which forms a first rotating engagement portion; a mounting connection assembly, comprising a first connecting plate, a second connecting member, and a plurality of fixing members; a movable engagement member, which is coaxially disposed within the end of the axial movement channel near the first connecting plate, such that it can move axially along the axial movement channel and approach and move away from the first rotating engagement portion; a plurality of limiting guide members, which are respectively accommodated in a plurality of corresponding outer guide grooves and a plurality of inner guide grooves; and a pushing member, which is coaxially disposed within the end of the axial movement channel away from the first connecting plate, such that it can rotate about an axis and drive the movable engagement member to move axially. This lock is used to disconnect or connect the power transmission between the wheel and the drive unit under specific working conditions, thereby improving the flexibility and energy efficiency of all-terrain vehicles or robots.

Description

Technical Field

[0001] This application relates to the field of wheel drive technology, and in particular to axle head locks. Background Technology

[0002] With the development of technology, automobiles are becoming increasingly popular as a means of transportation for carrying people and goods. Depending on the usage scenario, people will choose to drive different types of vehicles. For example, to adapt to harsh working environments with rugged roads such as mountains or border areas, eight-wheeled all-terrain vehicles are usually driven.

[0003] In cases where an eight-wheeled all-terrain vehicle malfunctions and needs to be pushed, and there are no other vehicles nearby to help tow it, the eight-wheeled all-terrain vehicle must be pushed manually.

[0004] However, on the one hand, when the eight-wheel all-terrain vehicle is driven by an electric motor, the wheels will drive the rotor to rotate passively inside the motor during the process of pushing the eight-wheel all-terrain vehicle. The permanent magnet inside the motor will generate eddy current losses when the rotor rotates, which will obstruct the rotation of the wheels and thus make it difficult to push the eight-wheel all-terrain vehicle smoothly. At the same time, the hysteresis effect generated when the motor is de-energized will also hinder the rotation of the wheels.

[0005] On the other hand, when an eight-wheeled all-terrain vehicle is driven by an engine, the wheels will cause the drive shaft to rotate passively during the process of pushing the vehicle, resulting in mechanical wear that hinders the rotation of the wheels and makes it difficult to push the vehicle smoothly. Utility Model Content

[0006] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides an axle head lock for use between a vehicle's drive unit and a wheel, wherein the drive unit rotates the wheel via the axle head lock, and wherein the axle head lock comprises:

[0007] A transmission assembly, wherein one end of the transmission assembly is rotatably engaged with the drive unit, and the transmission assembly forms a first rotating engagement portion at the other end away from the drive unit;

[0008] The mounting connection assembly includes a first connecting plate, a second connecting member, and several fixing members. The first connecting plate is rotatably coaxially sleeved on the end of the transmission assembly away from the drive unit. The end of the transmission assembly near the drive unit and the first rotating engagement part are located on both sides of the first connecting plate. The second connecting member is coaxially fixed to the first connecting plate by several fixing members. The second connecting member has an axial movable channel along its axis. The first rotating engagement part is accommodated in the axial movable channel. Several external guide grooves are evenly formed on the inner wall of the axial movable channel near the end of the first connecting plate along its extension direction. The several external guide grooves are in communication with the axial movable channel. The wheel is fixedly mounted to the second connecting member by several screws.

[0009] A movable engaging member is coaxially disposed within the end of the axial moving channel near the first connecting disc, such that it can move axially along the axial moving channel and approach and move away from the first rotating engaging portion. The movable engaging member forms a second rotating engaging portion at the end near the first rotating engaging portion, which is adapted to the first rotating engaging portion, so that when the movable engaging member approaches the first rotating engaging portion, it engages with the first rotating engaging portion through the second rotating engaging portion. The circumferential side of the movable engaging member in the axial direction is provided with a plurality of inner guide grooves that communicate with the plurality of outer guide grooves.

[0010] A plurality of limiting guide members, wherein the plurality of limiting guide members are respectively accommodated in a plurality of corresponding outer guide grooves and a plurality of inner guide grooves;

[0011] A pushing member is coaxially disposed within the end of the axially movable channel away from the first connecting disc, in a manner that allows the pushing member to rotate about an axis and drive the movable engaging member to move axially.

[0012] According to one embodiment of this application, the transmission assembly includes a transmission body and a transmission engagement member. The transmission body has a drive engagement portion and a first transmission engagement portion. Several grooves are respectively formed along the axial direction on the periphery of both ends of the transmission body to form a drive engagement portion and a first transmission engagement portion at both ends of the transmission body. The transmission body is engaged with the drive unit through the drive engagement portion in a rotatable manner around an axis. The transmission engagement member has a nesting space formed along the axial direction. Several grooves are uniformly formed along the axial direction on the inner wall of the nesting space to form a second transmission engagement portion adapted to the first transmission engagement portion.

[0013] According to one embodiment of this application, the transmission engagement member has a plurality of grooves uniformly formed along the axial direction on the periphery of the end near the movable engagement member to form a first rotating engagement portion. The end of the movable engagement member near the first rotating engagement portion in the axial direction has a receiving space. The inner wall of the receiving space has a plurality of grooves uniformly formed along the axial direction to form a second rotating engagement portion adapted to the first rotating engagement portion. When the movable engagement member moves along the axial direction and approaches the transmission engagement member, the first rotating engagement portion is inserted into the receiving space and engages with the second rotating engagement portion.

[0014] According to one embodiment of this application, the transmission body extends radially at the end near the transmission engagement member to form a blocking ring. The end of the transmission engagement member near the blocking ring in the extension direction of the second transmission engagement portion expands radially outward to form an annular groove and forms a blocking wall facing the blocking ring. The distance between the end of the blocking ring near the blocking wall in the axial direction and the first connecting disc is greater than the distance between the end of the transmission engagement member near the first connecting disc and the blocking wall. The blocking wall of the second transmission engagement portion abuts against the blocking ring.

[0015] According to one embodiment of this application, the rotating body is held within the end of the axial moving channel away from the movable engaging member, and the end of the rotating body axially close to the movable engaging member is coaxially threaded to the movable engaging member.

[0016] According to one embodiment of this application, the rotating body is movably disposed within the axially movable channel in such a way that it is threadedly connected to the inner wall of the axially movable channel, and the end of the rotating body near the movable engaging member is rotatably coaxially connected to the movable engaging member through a bearing seat.

[0017] According to one embodiment of this application, the inner peripheral wall of the axial movable channel near the first connecting plate along the axial direction expands radially outward to form an annular groove and forms a retaining ring step facing the first connecting plate. The annular groove communicates with the outer guide groove. The mounting connection assembly further includes a limiting member, which includes a limiting ring body. The limiting ring body is coaxially disposed within the axial movable channel, and a portion of the limiting ring body extends into the annular groove. The two ends of the limiting ring body in the axial direction respectively abut against the retaining ring step and the first connecting plate.

[0018] According to one embodiment of this application, the mounting connection assembly further includes a stop ring disposed at the end of the axial moving channel away from the movable engaging member, the rotating body extending radially at the end away from the movable engaging member to form an extension, the pushing member further includes a limiting member sleeved on the rotating body, the stop ring being located between the extension and the limiting member in the axial direction of the rotating body, and both the extension and the stop ring abutting against the stop ring.

[0019] According to one embodiment of this application, the pushing member further includes a second rotating shaft, which is sleeved on the rotating body and is located between the rotating body and the stop ring.

[0020] According to one embodiment of this application, the first connecting plate extends radially to form a first connecting edge, and the second connecting member extends radially to form a second connecting edge. The first connecting edge and the second connecting edge correspond to each other in the axial direction of the first connecting plate. Each of the plurality of fixing members includes a fixing member and a stabilizing member. The second connecting edge is uniformly provided with a plurality of through holes for the plurality of stabilizing members to pass through in the axial direction. The first connecting edge is provided with a plurality of receiving grooves communicating with the plurality of through holes. The plurality of stabilizing members pass through the plurality of through holes and extend into the corresponding plurality of receiving grooves. The plurality of fixing members pass through the stabilizing members and the first connecting edge, and the plurality of fixing members are respectively threadedly connected to the plurality of stabilizing members and the first connecting edge.

[0021] The axle lock (also described as a drive disconnector) disclosed in this application is a key mechanical device, particularly suitable for eight-wheeled all-terrain vehicles or robots, used to disconnect or connect the power transmission between the wheels and the drive unit under specific working conditions. Its core purpose is to improve the flexibility and energy efficiency of all-terrain vehicles or robots. In the power-engaged state: when locked, the power of the drive unit is transmitted to the wheels, giving them driving force. In the power-disengaged state: when unlocked, the connection between the wheels and the drive unit is broken, allowing the wheels to rotate freely (follow-up), preventing the motor / engine from being passively dragged, reducing energy consumption and mechanical wear. Manual locking is achieved by directly operating a manual knob to switch between the power-engaged and power-disengaged states. Attached Figure Description

[0022] Figure 1 A perspective view of an application state of a preferred embodiment of this application is shown, wherein the axle head lock is disposed between the drive unit and the wheel of the vehicle.

[0023] Figure 2 It shows Figure 1 A schematic cross-sectional view.

[0024] Figure 3A perspective view of the shaft lock according to a preferred embodiment of this application is shown.

[0025] Figure 4 It shows Figure 3 A schematic cross-sectional view.

[0026] Figure 5 It shows Figure 4 A magnified view of a portion of point A in the diagram.

[0027] Figure 6 An exploded view of the shaft head lock according to a preferred embodiment of this application is shown.

[0028] Figure 7 It shows Figure 6 A magnified view of a portion of point B in the diagram.

[0029] Figure 8 It shows Figure 6 A magnified view of a portion of point C. Detailed Implementation

[0030] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.

[0031] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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 application 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, the above terms should not be construed as limitations on this application.

[0032] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0033] refer to Figures 1 to 8A preferred embodiment of the axle lock according to this application will be described in detail below. The axle lock is disposed between a drive unit 910 and a wheel 100 of a vehicle 900, such that the drive unit 910 drives the wheel 100 via the axle lock. The vehicle 900 may be an eight-wheeled all-terrain vehicle or a robot. The axle lock includes a transmission assembly 10, a mounting connection assembly 20, a movable engaging member 30, a plurality of limiting guide members 40, and a pushing member 50.

[0034] Specifically, one end of the transmission assembly 10 is rotatably engaged with the drive unit 910 of the vehicle 900. The transmission assembly 10 forms a first rotating engagement portion 121 at the other end, which is away from the drive unit 910.

[0035] The mounting connection assembly 20 includes a first connecting plate 21, a second connecting member 22, and a plurality of fixing members 23. The transmission assembly 10 partially passes through the first connecting plate 21, and the first connecting plate 21 is rotatably and coaxially positioned at the end of the transmission assembly 10 furthest from the drive unit 910. The end of the transmission assembly 10 closest to the drive unit 910 and the first rotating engagement portion 121 are located on opposite sides of the first connecting plate 21. The second connecting member 22 is coaxially fixed to the first connecting plate 21 by the plurality of fixing members 23. An axially movable channel 2201 is formed along the axis of the second connecting member 22, allowing the first rotating engagement portion 121 to be accommodated within the axially movable channel 2201. A plurality of external guide grooves 2202 are evenly formed along the extending direction on the inner wall of the axially movable channel 2201 near the end of the first connecting plate 21. The plurality of external guide grooves 2202 communicate with the axially movable channel 2201. The wheel 100 is fixedly mounted to the second connector 22 by a number of screws.

[0036] The movable engaging member 30 is coaxially disposed within the end of the axial moving channel 2201 near the first connecting disc 21, such that it can move axially along the axial moving channel 2201 and approach and move away from the first rotating engaging portion 121. At the end of the movable engaging member 30 near the first rotating engaging portion 121, a second rotating engaging portion 31 is formed, adapted to the first rotating engaging portion 121, so that when the movable engaging member 30 approaches the first rotating engaging portion 121, the second rotating engaging portion 31 engages with the first rotating engaging portion 121. The circumferential side of the movable engaging member 30 is provided with a plurality of inner guide grooves 301 corresponding to a plurality of outer guide grooves 2202 along the axial direction. In other words, the outer guide grooves 2202 and the plurality of inner guide grooves 301 are respectively connected.

[0037] The limiting guides 40 are respectively accommodated in the corresponding outer guide grooves 2202 and inner guide grooves 301.

[0038] The pushing member 50 is coaxially positioned within the end of the axial moving channel 2201 away from the first connecting plate 21, in a manner that allows it to rotate about an axis and drive the movable engaging member 30 to move axially.

[0039] It is understood that when the drive unit 910 of the vehicle 900 drives the transmission assembly 10 to rotate around the axis, the push member 50 rotates around the axis and drives the movable meshing member 30 to move axially, so that the second rotating meshing part 31 of the movable meshing member 30 can engage with the first rotating meshing part 121, thereby allowing the transmission assembly 10 to drive the movable meshing member 30 to rotate around the axis through the first rotating meshing part 121. In this configuration, since several limiting guide members 40 are respectively accommodated in corresponding outer guide grooves 2202 and inner guide grooves 301, when the movable engaging member 30 rotates around the axis, the setting of several limiting guide members 40 prevents the movable engaging member 30 from spinning freely in the axial moving channel 2201. The movable engaging member 30 drives the second connecting member 22 and the first connecting disc 21 to rotate around the axis through several limiting guide members 40, thereby rotating the wheel 100, so that the wheel 100 obtains driving force and realizes power transmission, achieving a power engagement state to achieve locking, and thus enabling the vehicle 900 to move.

[0040] Furthermore, by rotating the pushing member 50 axially and driving the movable engaging member 30 to move axially, and by moving the movable engaging member 30 away from the first rotating engaging part 121, the second rotating engaging part 31 of the movable engaging member 30 can be separated from the first rotating engaging part 121, achieving a power separation state and unlocking. When the drive unit 910 of the vehicle 900 drives the transmission assembly 10 to rotate around the axis as a whole, it prevents the transmission assembly 10 from driving the movable engaging member 30 to rotate around the axis through the first rotating engaging part 121.

[0041] In other words, by rotating the pushing member 50 axially and driving the movable meshing member 30 to move axially, and after the second rotating meshing part 31 of the movable meshing member 30 is separated from the first rotating meshing part 121, since the transmission assembly 10 partially penetrates the first connecting plate 21, and the first connecting plate 21 is rotatably and coaxially located at the end of the transmission assembly 10 that is far away from the drive unit 910, the wheel 100, the first connecting plate 21, the second connecting member 22, and the fixing member 23 can rotate at the point where the first connecting plate 21 is penetrated by the transmission assembly 10. The rotation of the wheel 100, the first connecting plate 21, the second connecting member 22, and the fixing member 23 as a whole does not affect the rotation of the transmission assembly 10 as a whole when it is driven by the drive unit 910, so that the wheel 100 is in a free state, thereby improving the overall flexibility and energy efficiency of the 900.

[0042] As an example, the drive unit 910 is implemented including a drive member and a transmission member, the transmission member being disposed between the output end of the drive member and the transmission assembly 10, and one end of the transmission assembly 10 being rotatably engaged with the transmission member of the drive unit 910, so that the drive member drives the transmission assembly 10 to rotate as a whole through the transmission member. The drive member is implemented as a drive motor or engine.

[0043] On the one hand, it should be noted that when the drive unit 910 malfunctions during the operation of the vehicle 900 and the vehicle 900 needs to be manually pushed to make the wheel 100 rotate, the second rotating engagement part 31 of the movable engagement part 30 can be separated from the first rotating engagement part 121 to achieve a power separation state. This prevents the wheel 100 from being passively rotated by the transmission component through the mounting connection assembly 20, the limiting guide part 40, the movable engagement part 30, and the transmission assembly 10 in sequence. This prevents the wheel 100 from being obstructed from rotating, avoids the drive motor or engine being passively dragged, reduces energy consumption and mechanical wear, and facilitates the smooth pushing of the vehicle 900 by manpower.

[0044] On the other hand, it should be noted that when the vehicle 900 is climbing a slope and the drive component fails, preventing the wheels 100 from being driven by the transmission component and the axle lock, a locking mechanism is installed in the vehicle 900 to automatically lock the transmission component 10 when the drive component fails. This prevents the vehicle 900 from sliding downhill due to the drive component failure preventing the wheels 100 from being driven by the transmission component and the axle lock. However, although the locking mechanism can stop the vehicle 900 halfway down the slope, if the vehicle 900 is on a flat section of road and the drive component fails, preventing the wheels 100 from being driven by the transmission component and the axle lock, and the vehicle 900 needs to be pushed, the vehicle 900 will be unable to be pushed because the wheels 100 cannot rotate. Therefore, according to the axle lock of this application, the second rotating engagement part 31 of the movable engagement part 30 can be separated from the first rotating engagement part 121 to achieve a power separation state, thereby unlocking the vehicle 900 and smoothly pushing it.

[0045] Preferably, the transmission assembly 10 includes a transmission body 11 and a transmission engagement member 12. The transmission body 11 has a drive engagement portion 111 and a first transmission engagement portion 112. A plurality of grooves are formed axially on the periphery of both ends of the transmission body 11 to form a drive engagement portion 111 and a first transmission engagement portion 112 at each end of the transmission body 11. The transmission body 11 is rotatably engaged with the transmission member of the drive unit 910 via the drive engagement portion 111. The transmission engagement member 12 has a nesting space 1201 formed along the axial direction. The inner wall of the nested space 1201 is uniformly provided with a plurality of grooves along the axial direction to form a second transmission engagement part 122 adapted to the first transmission engagement part 112. The first transmission engagement part 112 engages with the second transmission engagement part 122 by inserting into the nested space 1201, so that the transmission engagement part 12 is coaxially arranged at the end of the transmission body 11 away from the transmission component in a separable manner.

[0046] In other words, by rotating the pushing member 50 around the axis and driving the movable meshing member 30 to move axially, and after the second rotating meshing part 31 of the movable meshing member 30 is separated from the first rotating meshing part 121, the transmission body 11 can drive the transmission meshing member 12 to rotate in the axial moving channel 2201 through the meshing of the first transmission meshing part 112 and the second transmission meshing part 122.

[0047] Furthermore, it can be understood that the transmission body 11 of the transmission assembly 10 passes through the first connecting disk 21, and the first connecting disk 21 is rotatably and coaxially disposed at the end of the transmission body 11 near the transmission engagement member 12. The drive engagement part 111 and the first transmission engagement part 112 are respectively located on both sides of the first connecting disk 21 along its axial direction. The transmission engagement member 12 is accommodated in the axial movement channel 2201.

[0048] In this embodiment, the transmission engagement member 12 has a plurality of grooves evenly formed along the axial direction on the periphery of its end near the movable engagement member 30 to form the first rotating engagement portion 121. The movable engagement member 30 has a receiving space 302 formed along the axial direction on its axial end near the first rotating engagement portion 121. The inner wall of the receiving space 302 has a plurality of grooves evenly formed along the axial direction to form the second rotating engagement portion 31 adapted to the first rotating engagement portion 121. When the pushing member 50 rotates around its axis and drives the movable engagement member 30 to move axially closer to the transmission engagement member 12, the first rotating engagement portion 121 inserts into the receiving space 302 and engages with the second rotating engagement portion 31, so that the transmission member sequentially drives the wheel 100 through the transmission body 11, the transmission engagement member 12, the movable engagement member 30, a plurality of the limiting guide members 40, and the second connecting member 22.

[0049] It is worth mentioning that, since the transmission engagement member 12 is coaxially arranged in a detachable manner at the end of the transmission body 11 away from the transmission component, when the transmission engagement member 12 is damaged due to repeated engagement and disengagement of the first rotating engagement portion 121 and the second rotating engagement portion 31 of the movable engagement member 30, the transmission engagement member 12 can be removed from the axial movable channel 2201 for replacement simply by separating the first connecting plate 21 from the second connecting member 22, without having to replace the entire transmission assembly 10. This facilitates the replacement and maintenance of the transmission engagement member 12. Furthermore, since the entire transmission assembly 10 does not need to be replaced, the replacement and maintenance costs are reduced.

[0050] Similarly, since the movable engagement member 30 is coaxially positioned within the end of the axial movable channel 2201 near the first connecting disc 21, so that it can move axially along the axial movable channel 2201 and approach and move away from the first rotating engagement portion 121, when the movable engagement member 30 is damaged due to repeated engagement and disengagement between the second rotating engagement portion 31 and the first rotating engagement portion 121 of the transmission engagement member 12, the movable engagement member 30 can be removed from the axial movable channel 2201 and replaced simply by separating the first connecting disc 21 from the second connecting member 22.

[0051] Preferably, the transmission body 11 extends radially at the end near the transmission engagement member 12 to form a blocking ring 113. The end of the transmission engagement member 12 near the blocking ring 113 in the extending direction of the second transmission engagement portion 122 expands radially outward to form an annular groove, and forms a blocking wall 1221 facing the blocking ring 113. The distance between the end of the blocking ring 113 near the blocking wall 1221 in the axial direction and the first connecting disk 21 is greater than the distance between the end of the transmission engagement member 12 near the first connecting disk 21 and the blocking wall 1221. When the first transmission engagement portion 112 engages with the second transmission engagement portion 122 by inserting into the nesting space 1201, the blocking wall 1221 of the second transmission engagement portion 122 abuts against the blocking ring 113, preventing the end of the transmission engagement member 12 near the first connecting disk 21 from sticking to the first connecting disk 21. This prevents the transmission body 11 from driving the transmission engagement member 12 to rotate in the axial movable channel 2201 due to friction with the first connecting disk 21, thus hindering rotation.

[0052] Preferably, the mounting connection assembly 20 further includes a first rotating shaft 24. The first rotating shaft 24 is sleeved on the transmission body 11 in a manner that reduces the friction between the transmission body 11 and the first connecting plate 21, and the first rotating shaft 24 is positioned between the transmission body 11 and the first connecting plate 21 at the point where the transmission body 11 passes through the first connecting plate 21.

[0053] As an example, the first rotating shaft 24 is implemented to include a bearing.

[0054] It is understood that when the pushing member 50 rotates around the axis and drives the movable meshing member 30 to move axially, and after the second rotating meshing part 31 of the movable meshing member 30 separates from the first rotating meshing part 121, when the transmission body 11 drives the transmission meshing member 12 to rotate in the axial moving channel 2201, the friction between the transmission body 11 and the first connecting disc 21 at the point through which the first rotating shaft 24 is set can be reduced, thereby increasing the wear of the transmission body 11 and the first connecting disc 21 and extending the service life of the transmission body 11 and the first connecting disc 21.

[0055] Meanwhile, by rotating the pushing member 50 around the axis and driving the movable meshing member 30 to move axially, and by separating the second rotating meshing part 31 of the movable meshing member 30 from the first rotating meshing part 121, when the vehicle 900 is manually pushed to make the wheel 100 rotate, the rotation of the wheel 100, the first connecting plate 21, the second connecting member 22 and the fixed member 23 as a whole at the point where the transmission assembly 10 passes through the first connecting plate 21 is smoother, so that it is less effort to push the vehicle 900 manually.

[0056] In one embodiment, the rotating body 51 is held within the end of the axial movable channel 2201 away from the movable engagement member 30, and the end of the rotating body 51 axially close to the movable engagement member 30 is coaxially threaded to the movable engagement member 30.

[0057] It is understood that, since the limiting guide members 40 are respectively accommodated in the corresponding external guide grooves 2202 and internal guide grooves 301, when the rotating body 51 is rotated, the movable engaging member 30 cannot follow the rotating body 51 to rotate under the restriction of the limiting guide members 40. At the same time, under the guidance of the limiting guide members 40, the movable engaging member 30 will move along the axial direction in a manner that maintains a threaded connection with the rotating body 51, thereby realizing the engagement and disengagement between the second rotating engaging part 31 and the first rotating engaging part 121 of the movable engaging member 30.

[0058] In another modified embodiment, the rotating body 51 is movably disposed within the axial movable channel 2201 such that it is threadedly connected to the inner wall of the axial movable channel 2201, and the end of the rotating body 51 near the movable engagement member 30 is rotatably coaxially connected to the movable engagement member 30 via a bearing seat.

[0059] It is understood that when the rotating body 51 is rotated, the rotating body 51 can move along the axial direction while maintaining its threaded connection to the inner wall of the axial movable channel 2201. Since the end of the rotating body 51 near the movable engagement member 30 is rotatably coaxially connected to the movable engagement member 30 through a bearing seat, the movable engagement member 30 can be driven to move along the axial direction to realize the engagement and disengagement between the second rotating engagement part 31 and the first rotating engagement part 121 of the movable engagement member 30.

[0060] To enable those skilled in the art to understand this application, in at least one embodiment of this application, the example is provided whereby the rotating body 51 is held within the end of the axial movable channel 2201 away from the movable engagement member 30, and the end of the rotating body 51 axially close to the movable engagement member 30 is coaxially threadedly connected to the movable engagement member 30.

[0061] Preferably, the inner peripheral wall of the axial movable channel 2201 near the first connecting plate 21 expands radially outward along the axial direction to form an annular groove, and forms a retaining ring step 221 facing the first connecting plate 21. The annular groove communicates with the outer guide groove 2202. The mounting connection assembly 20 further includes a limiting member 25. The limiting member 25 includes a limiting ring body 251, which is coaxially disposed within the axial movable channel 2201, and the limiting ring body 251 retains a portion extending into the annular groove. The two ends of the limiting ring body 251 in the axial direction respectively abut against the retaining ring step 221 and the first connecting plate 21.

[0062] Since the annular groove remains connected to the outer guide groove 2202, and the two ends of the limiting ring body 251 in the axial direction respectively abut against the retaining ring step 221 and the first connecting disc 21, the limiting ring body 251 stops several limiting guide members 40, thereby restricting the position of several limiting guide members 40 in the axial direction. That is, when the rotating body 51 is rotated and the movable engaging member 30 moves along the axial direction under the restriction and guidance of the limiting guide members 40, the limiting ring body 251 can prevent several limiting guide members 40 from sliding out of several outer guide grooves 2202 and several inner guide grooves 301 in the extending direction.

[0063] Preferably, the limiting member 25 further includes a reduced-diameter ring 252. The inner circumference of the limiting ring body 251 is radially reduced to form the reduced-diameter ring 252, thereby reinforcing the limiting ring body 251 through the reduced-diameter ring 252.

[0064] Furthermore, the transmission engagement member 12 extends radially to form an extension disc 123 close to the retaining ring body 251 and the reduced diameter ring 252. The extension disc 123 and the reduced diameter ring 252 are opposite each other in the axial direction of the transmission engagement member 12.

[0065] During the process where the movable engaging member 30 moves away from the transmission engaging member 12 and the second rotating engaging part 31 disengages from the first rotating engaging part 121, the reducing ring 252 can block the extension disc 123 of the transmission engaging member 12 to prevent the second rotating engaging part 31 from being unable to disengage from the first rotating engaging part 121, and at the same time prevent the transmission engaging member 12 from being pulled away from the transmission body 11 in the manner that the second transmission engaging part 122 disengages from the first transmission engaging part 112.

[0066] Preferably, the mounting connection assembly 20 further includes a retaining ring 26. The retaining ring 26 is disposed at the end of the axial movement channel 2201 away from the movable engagement member 30. The rotating body 51 extends radially at the end away from the movable engagement member 30 to form an extension 511. The extension 511 and the retaining ring 26 abut against each other in the axial direction, and the retaining ring 26 is located on the side of the extension 511 closer to the movable engagement member 30, so as to prevent the rotating body 51 from moving towards the transmission engagement member 12 in the axial direction when rotating by the retaining ring 26 abutting against the extension 511.

[0067] In this embodiment, the abutment ring 26 is threadedly connected to the inner wall of the axial movable channel 2201, so that the position of the abutment ring 26 within the axial movable channel 2201 can be adjusted. Since the extension portion 511 and the abutment ring 26 abut against each other in the axial direction, the distance by which the movable engaging member 30 moves along the axial direction when the rotating body 51 rotates is changed by maintaining a threaded connection with the movable engaging member 30. This allows the engagement degree between the second rotating engaging portion 31 and the first rotating engaging portion 121 of the movable engaging member 30 to be adjusted to a better state. Alternatively, the abutment ring 26 and the second connecting member 22 are integrally formed.

[0068] Preferably, the pushing member 50 further includes a limiting member 52, which is sleeved on the rotating body 51 and abuts against the end of the stop ring 26 away from the extension portion 511 in the axial direction. That is, in the axial direction of the rotating body 51, the stop ring 26 is located between the extension portion 511 and the limiting member 52, and both the extension portion 511 and the stop ring 26 abut against the stop ring 26. By the extension portion 511 and the stop ring 26 abutting against the stop ring 26, the position of the rotating body 51 within the axial movable channel 2201 is restricted, so that the rotating body 51 is prevented from moving along the axis when rotating about the axis, thereby allowing the rotating body 51 to stably drive the movable engaging member 30 to move along the axis when rotating.

[0069] As an example, the limiting member 52 is threaded to the rotating body 51 so that after the rotating body 51 partially passes through the stop ring 26 and the extension 511 abuts against the stop ring 26, the limiting member 52 is threaded to the rotating body 51 by rotating the limiting member 52, and the limiting member 52 is attached to the end of the stop ring 26 away from the extension 511 in the axial direction.

[0070] Preferably, the pushing member 50 further includes a second rotating shaft 53. The second rotating shaft 53 is sleeved on the rotating body 51, and the second rotating shaft 53 is disposed between the rotating body 51 and the abutment ring 26.

[0071] Preferably, the second rotating shaft 53 is implemented to include a bearing, so as to reduce the friction between the rotating body 51 and the stop ring 26. At the same time, the second rotating shaft 53 prevents the rotating body 51 from shaking in the direction perpendicular to the axis.

[0072] In this embodiment, the rotating body 51 extends axially at the end portion away from the movable engaging member 30 to form a gripping portion 512, thereby improving the convenience of rotating the rotating body 51 by manually gripping the gripping portion 512, and thus realizing manual locking. By manually gripping the gripping portion 512 to rotate the rotating body 51, the switching between the power engagement state and the power disengagement state can be realized.

[0073] The rotating body 51 includes a manual knob.

[0074] Alternatively, the second connector 22 is equipped with an electric motor, and the rotating body 51 is connected to the output end of the electric motor in a manner that allows it to rotate about an axis, so that the rotating body 51 is driven by the electric motor, thereby eliminating the tedious operation of manually rotating the rotating body 51.

[0075] Preferably, the first connecting disc 21 extends radially to form a first connecting edge 211. The second connecting member 22 extends radially to form a second connecting edge 222. The first connecting edge 211 and the second connecting edge 222 correspond to each other in the axial direction of the first connecting disc 21. Each of the plurality of fixing members 23 includes a fixing member 231 and a stabilizing member 232. The second connecting edge 222 has a plurality of through holes uniformly formed around its axial direction for the plurality of stabilizing members 232 to pass through. The first connecting edge 211 has a plurality of receiving grooves communicating with the plurality of through holes. The plurality of stabilizing members 232 respectively pass through the plurality of through holes and extend into the corresponding plurality of receiving grooves. A plurality of fixing members 231 pass through the stabilizing member 232 and the first connecting edge 211, and the plurality of fixing members 231 are respectively threadedly connected to the plurality of stabilizing members 232 and the first connecting edge 211, so as to coaxially fix the second connecting edge 222 of the second connecting member 22 to the first connecting edge 211 of the first connecting plate 21 by the plurality of fixing members 231, thereby coaxially fixing the second connecting member 22 to the first connecting plate 21.

[0076] Preferably, the fastener 231 is implemented by including screws.

[0077] Since the stabilizers 232 pass through the through holes and extend into the corresponding receiving grooves, they prevent the vibration from breaking the fasteners 231 when the first connecting edge 211 and the second connecting edge 222 move relative to each other due to vibration. At the same time, they improve the stability of the fasteners 231 when they coaxially fix the second connecting edge 222 of the second connecting member 22 to the first connecting edge 211 of the first connecting plate 21.

[0078] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.

Claims

1. A spindle nut lock for between a drive unit of a vehicle and a wheel, the drive unit to turn the wheel via the spindle nut lock, characterised in that, The shaft head lock includes: A transmission assembly, wherein one end of the transmission assembly is rotatably engaged with the drive unit, and the transmission assembly forms a first rotating engagement portion at the other end away from the drive unit; The mounting connection assembly includes a first connecting plate, a second connecting member, and several fixing members. The first connecting plate is rotatably coaxially sleeved on the end of the transmission assembly away from the drive unit. The end of the transmission assembly near the drive unit and the first rotating engagement part are located on both sides of the first connecting plate. The second connecting member is coaxially fixed to the first connecting plate by several fixing members. The second connecting member has an axial movable channel along its axis. The first rotating engagement part is accommodated in the axial movable channel. Several external guide grooves are evenly formed on the inner wall of the axial movable channel near the end of the first connecting plate along its extension direction. The several external guide grooves are in communication with the axial movable channel. The wheel is fixedly mounted to the second connecting member by several screws. A movable engaging member is coaxially disposed within the end of the axial moving channel near the first connecting disc, such that it can move axially along the axial moving channel and approach and move away from the first rotating engaging portion. The movable engaging member forms a second rotating engaging portion at the end near the first rotating engaging portion, which is adapted to the first rotating engaging portion, so that when the movable engaging member approaches the first rotating engaging portion, it engages with the first rotating engaging portion through the second rotating engaging portion. The circumferential side of the movable engaging member in the axial direction is provided with a plurality of inner guide grooves that communicate with the plurality of outer guide grooves. A plurality of limiting guide members, wherein the plurality of limiting guide members are respectively accommodated in a plurality of corresponding outer guide grooves and a plurality of inner guide grooves; A pushing member is coaxially disposed within the end of the axially movable channel away from the first connecting disc, in a manner that allows the pushing member to rotate about an axis and drive the movable engaging member to move axially.

2. The lock of claim 1, wherein The transmission assembly includes a transmission body and a transmission engagement component. The transmission body has a drive engagement portion and a first transmission engagement portion. Several grooves are respectively formed on the circumferential sides of both ends of the transmission body along the axial direction to form a drive engagement portion and a first transmission engagement portion at both ends of the transmission body. The transmission body is engaged with the drive unit through the drive engagement portion in a rotatable manner around the axis. The transmission engagement component has a nesting space formed along the axial direction. Several grooves are uniformly formed on the inner wall of the nesting space along the axial direction to form a second transmission engagement portion adapted to the first transmission engagement portion.

3. The lock of claim 2, wherein: The transmission engagement member has a plurality of grooves evenly formed along the axial direction on the periphery of the end near the movable engagement member to form the first rotating engagement portion. The end of the movable engagement member near the first rotating engagement portion in the axial direction has a receiving space. The inner wall of the receiving space has a plurality of grooves evenly formed along the axial direction to form the second rotating engagement portion adapted to the first rotating engagement portion. When the movable engagement member moves along the axial direction and approaches the transmission engagement member, the first rotating engagement portion is inserted into the receiving space and engages with the second rotating engagement portion.

4. The lock of claim 3, wherein: The transmission body extends radially at the end near the transmission engagement member to form a blocking ring. The end of the transmission engagement member near the blocking ring in the extension direction of the second transmission engagement portion expands radially outward to form an annular groove and forms a blocking wall facing the blocking ring. The distance between the end of the blocking ring near the blocking wall in the axial direction and the first connecting disc is greater than the distance between the end of the transmission engagement member near the first connecting disc and the blocking wall. The blocking wall of the second transmission engagement portion abuts against the blocking ring.

5. The lock of claim 4, wherein: The rotating body is located at the end of the axial moving channel away from the movable engaging member, and the end of the rotating body axially close to the movable engaging member is coaxially threaded to the movable engaging member.

6. The lock of claim 4 wherein, The rotating body is movably disposed within the axially movable channel in such a way that it is threadedly connected to the inner wall of the axially movable channel, and the end of the rotating body near the movable engaging member is rotatably coaxially connected to the movable engaging member via a bearing seat.

7. The lock of claim 5 wherein, The inner peripheral wall of the axial movable channel near the first connecting plate expands radially outward along the axial direction to form an annular groove and a retaining ring step facing the first connecting plate. The annular groove communicates with the outer guide groove. The mounting connection assembly also includes a limiting member, which includes a limiting ring body. The limiting ring body is coaxially disposed within the axial movable channel, and a portion of the limiting ring body extends into the annular groove. The two ends of the limiting ring body in the axial direction abut against the retaining ring step and the first connecting plate, respectively.

8. The lock of claim 7, wherein: The mounting connection assembly further includes a stop ring disposed at the end of the axial moving channel away from the movable engaging member. The rotating body extends radially at the end away from the movable engaging member to form an extension. The pushing member further includes a limiting member sleeved on the rotating body. The stop ring is located between the extension and the limiting member in the axial direction of the rotating body, and both the extension and the stop ring abut against the stop ring.

9. The lock of claim 8, wherein The pushing component further includes a second rotating shaft, which is sleeved on the rotating body and is located between the rotating body and the stop ring.

10. The lock of claim 9, wherein The first connecting plate extends radially to form a first connecting edge, and the second connecting member extends radially to form a second connecting edge. The first connecting edge and the second connecting edge correspond to each other in the axial direction of the first connecting plate. Each of the plurality of fixing members includes a fixing member and a stabilizing member. The second connecting edge is evenly provided with a plurality of through holes for the plurality of stabilizing members to pass through in the axial direction. The first connecting edge is provided with a plurality of receiving grooves communicating with the plurality of through holes. The plurality of stabilizing members pass through the plurality of through holes and extend into the corresponding plurality of receiving grooves. The plurality of fixing members pass through the stabilizing members and the first connecting edge, and the plurality of fixing members are respectively threadedly connected to the plurality of stabilizing members and the first connecting edge.

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