Parking mechanism of vehicle and vehicle

Abstract

The utility model provides a parking mechanism of a vehicle and the vehicle. The parking mechanism comprises a fixing plate, a first connecting piece, a second connecting piece and a lock sleeve. The fixing plate is provided with first meshing teeth, and the fixing plate is fixed relative to a frame of the vehicle. The first connecting piece is used for being connected to one wheel of the vehicle. The second connection is spaced apart from the first connection in the switching direction, and the second connection is for connection to another wheel of the vehicle. The lock sleeve is arranged on the first connecting piece in a sleeving mode and cannot rotate relative to the first connecting piece, the lock sleeve can move between the unlocking position and the parking position in the switching direction relative to the first connecting piece, and the lock sleeve is provided with second meshing teeth. When the lock sleeve is located at the parking position, the second meshing teeth are matched with the first meshing teeth, and the lock sleeve is arranged on the second connecting piece in a sleeving mode and cannot rotate relative to the second connecting piece. The parking mechanism can achieve parking of the vehicle, and is simple in structure and low in cost.

Description

Technical Field

[0001] This application generally relates to the technical field of differential locks, and more specifically to a parking mechanism and a vehicle for a vehicle. Background Art

[0002] Currently, for off-road vehicles, the vehicle is relatively bulky, and at the same time, it is necessary to park on a large-angle steep slope. The through groove will adopt a parking mechanism of ratchet and pawl. However, this type of parking mechanism is relatively complex, and it occupies a relatively large space and weight in terms of structural design. At the same time, it requires a separate controller and motor to drive, increasing the vehicle cost. Summary of the Utility Model

[0003] A series of simplified concepts are introduced in the Summary of the Utility Model section, which will be further described in detail in the Detailed Implementation section. The Summary of the Utility Model section of this application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0004] To at least partially solve the above problems, a first aspect of this application provides a parking mechanism for a vehicle, and the parking mechanism for the vehicle includes:

[0005] A fixing plate, the fixing plate is provided with first engaging teeth;

[0006] A first connecting member, the first connecting member is used to connect to one wheel of the vehicle;

[0007] A second connecting member, the second connecting member is spaced apart from the first connecting member along a switching direction, and the second connecting member is used to connect to another wheel of the vehicle;

[0008] A locking sleeve, the locking sleeve is movable relative to the first connecting member along the switching direction, and the locking sleeve is provided with second engaging teeth;

[0009] Wherein, when the locking sleeve is in a parking position, the second engaging teeth cooperate with the first engaging teeth, the locking sleeve is sleeved on the first connecting member and the second connecting member, and the locking sleeve is non-rotatable relative to the first connecting member and the second connecting member.

[0010] According to the parking mechanism of the vehicle in the first aspect of the present application, the lock sleeve moves along the switching direction to the parking position, and the lock sleeve simultaneously sleeves the first connecting member and the second connecting member, so that the first connecting member and the second connecting member cannot rotate relative to each other. Moreover, the second engaging teeth of the lock sleeve cooperate with the first engaging teeth of the fixing plate, so that both the first connecting member and the second connecting member can be non-rotatable relative to the vehicle frame, and the two wheels respectively connected to the first connecting member and the second connecting member are locked, realizing the parking of the vehicle. Therefore, the parking mechanism of the vehicle in the present application can realize the parking of the vehicle through the cooperation between the lock sleeve and the fixing plate, with a simple structure, small occupied space and low manufacturing cost. In addition, the driving of the lock sleeve can share the original control system of the parking mechanism, further reducing the cost of the vehicle.

[0011] Optionally, the lock sleeve further has a locking position and an unlocking position relative to the first connecting member along the switching direction. During the process of moving from the unlocking position to the locking position, the lock sleeve sleeves the second connecting member and is non-rotatable relative to the second connecting member, while the second engaging teeth and the first engaging teeth are spaced apart along the switching direction.

[0012] Optionally, along the switching direction, the locking position is located between the unlocking position and the parking position.

[0013] Optionally, the second engaging teeth are located on the end face of the lock sleeve close to the fixing plate along the switching direction.

[0014] Optionally, a spline groove is provided in the lock sleeve, a first spline tooth is provided on the first connecting member and is matched with the spline groove, and a second spline tooth is provided on the second connecting member and is matched with the spline groove.

[0015] Optionally, during the process of the lock sleeve moving from the unlocking position to the locking position, the spline groove is engaged with the second spline tooth.

[0016] Optionally, during the process of the lock sleeve moving from the locking device to the parking position, the spline groove and the second spline tooth remain in a mating state.

[0017] Optionally, the parking mechanism further includes:

[0018] A fork, which clamps the lock sleeve; and

[0019] A driving element, which is connected to the fork and is used to drive the fork along the switching direction.

[0020] Optionally, the parking mechanism further includes a fork sleeve, the fork sleeve is sleeved on the lock sleeve, the fork sleeve is rotatable relative to the lock sleeve, the fork sleeve is fixed relative to the lock sleeve along the switching direction, and the shift fork is sleeved on the fork sleeve.

[0021] Optionally, the parking mechanism further includes a limiter and a transmission rod, the transmission rod is fixed to the shift fork, the limiter is fixed relative to the vehicle frame, and the transmission rod is provided with at least three limiting grooves; when the lock sleeve is located at the unlocking position, the locking position, and the parking position respectively, the limiter is respectively abutted against three of the limiting grooves.

[0022] Optionally, the limiter includes:

[0023] A housing, the housing is fixed relative to the vehicle frame;

[0024] A limiting ball, the limiting ball is located at the end of the housing, and the limiting ball is used for embedding into the limiting groove; and

[0025] An elastic member, the elastic member is disposed in the housing and connected to the limiting ball for tightly pressing the limiting ball.

[0026] The second aspect of the present application provides a vehicle, including the parking mechanism of the vehicle according to the above.

[0027] For the vehicle according to the second aspect of the present application, its internal space utilization rate is high, the structure is simple, and the manufacturing cost of the whole vehicle is reduced.

[0028] Optionally, it further includes:

[0029] A first wheel, the first wheel is provided with a first half shaft, and the first half shaft is connected to the first connecting member;

[0030] A second wheel, the second wheel is provided with a second half shaft, and the second half shaft is connected to the second connecting member; and

[0031] A vehicle frame, the first wheel and the second wheel are rotatable relative to the vehicle frame.

[0032] Optionally, it further includes:

[0033] A first motor, the first motor is connected to the first half shaft for driving the first wheel to rotate; and

[0034] A second motor, the second motor is connected to the second half shaft for driving the second wheel to rotate. Description of the Drawings

[0035] The following drawings of the embodiments of the present application are hereby incorporated as part of the present application for understanding the present application. The embodiments of the present application and their descriptions are shown in the drawings to explain the principles of the present application. In the drawings,

[0036] Figure 1 is a perspective view of a parking mechanism of a vehicle according to a preferred embodiment of the present application;

[0037] Figure 2 is Figure 1 a side view of the parking mechanism in

[0038] Figure 3 a side view when the lock sleeve is in the locked position;

[0039] Figure 4 is a perspective view when the lock sleeve is in the locked position;

[0040] Figure 5 is Figure 1 a perspective view of the fixing plate in

[0041] Figure 6 a schematic diagram of the cooperation between the lock sleeve and the fixing plate when the lock sleeve is in the parking position; and

[0042] Figure 7 is a schematic diagram of the cooperation between the limiter and the transmission rod.

[0043] Description of the reference numerals

[0044] 100: Fixing plate 101: First engaging tooth

[0045] 110: Lock sleeve 111: Second engaging tooth

[0046] 112: Spline groove 120: First connecting member

[0047] 121: First spline tooth 130: Second connecting member

[0048] 131: Second spline tooth 140: Fork

[0049] 150: Transmission rod 151: Limiting groove

[0050] 152: First limiting groove 153: Second limiting groove

[0051] 154: Third limiting groove 160: Driving element

[0052] 170: Limiter 171: Housing

[0053] 172: Limiting ball 180: Fork sleeve

[0054] Z: Switching direction Detailed implementation manners

[0055] In the following description, numerous specific details are given to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that embodiments of the present application may be practiced without one or more of these details. In other instances, some technical features well known in the art are not described in order to avoid obscuring the embodiments of the present application.

[0056] In this document, ordinal numbers such as "first" and "second" cited in the present application are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" does not imply the existence of a "second component" by itself, and the term "second component" does not imply the existence of a "first component" by itself.

[0057] In this document, "up", "down", "front", "back", "left", "right", etc. are only used to represent the relative positional relationship between relevant parts, rather than defining the absolute positions of these relevant parts.

[0058] In this document, "equal", "same", etc. are not strict mathematical and / or geometric limitations, and also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use, etc.

[0059] Unless otherwise specified, the numerical ranges in this document include not only the entire range between its two endpoints, but also several sub-ranges included therein.

[0060] Figures 1 to 7 A parking mechanism of a vehicle according to the present application is shown. The parking mechanism of the vehicle includes a fixing plate 100, a first connecting member 120, a second connecting member 130, and a lock sleeve 110. The fixing plate 100 is provided with first engaging teeth 101. The first connecting member 120 is used to connect to a wheel of the vehicle. The second connecting member 130 is spaced apart from the first connecting member 120 along a switching direction Z, and the second connecting member 130 is used to connect to another wheel of the vehicle. The lock sleeve 110 is movable relative to the first connecting member 120 along the switching direction Z, and the lock sleeve 110 is provided with second engaging teeth 111.

[0061] Wherein, when the lock sleeve 110 is in the parking position, the second engaging teeth 111 cooperate with the first engaging teeth 101, the lock sleeve 110 is sleeved on the first connecting member 120 and the second connecting member 130, and the lock sleeve 110 is non-rotatable relative to the first connecting member 120 and the second connecting member 130.

[0062] For the parking mechanism of the vehicle according to the present application, the lock sleeve 110 moves along the switching direction Z to the parking position, and the lock sleeve 110 simultaneously sleeves the first connecting member 120 and the second connecting member 130, so that the first connecting member 120 and the second connecting member 130 cannot rotate relative to each other. Moreover, the second engaging teeth 111 of the lock sleeve 110 cooperate with the first engaging teeth 101 of the fixed plate 100, so that the first connecting member 120 and the second connecting member 130 are both non-rotatable relative to the vehicle frame, and the two wheels respectively connected to the first connecting member 120 and the second connecting member 130 are locked, realizing the parking of the vehicle. Therefore, the parking mechanism of the vehicle according to the present application can realize the parking of the vehicle through the cooperation of the lock sleeve 110 and the fixed plate 100, with a simple structure, small occupied space, and low manufacturing cost. In addition, the drive of the lock sleeve 110 can share the original control system (such as a motor, a control module, etc.) of the parking mechanism, further reducing the cost of the vehicle.

[0063] Optionally, the first engaging teeth 101 and the second engaging teeth 111 can be end face teeth, making it easy for the lock sleeve 110 to be locked with the fixed plate 100.

[0064] As an alternative, the first engaging teeth 101 can be a spline sleeve, and the second engaging teeth 111 can be spline teeth, which can also realize the locking of the lock sleeve 110 and the fixed plate 100.

[0065] The fixed plate 100 is fixed relative to the vehicle body or the vehicle frame. Thus, when the lock sleeve 110 is in the parking position, the lock sleeve 110 is non-rotatable relative to the vehicle body or the vehicle frame, so that the wheels can be locked to realize parking. Preferably, the fixed plate 100 can be fixed to the housing of the vehicle drive assembly through fasteners such as bolts.

[0066] Furthermore, the lock sleeve 110 also has a locking position and an unlocking position relative to the first connecting member 120 along the switching direction Z. During the process of moving from the unlocking position to the locking position, the lock sleeve 110 sleeves the second connecting member 130 and is non-rotatable relative to the second connecting member 130, while the second engaging teeth 111 and the first engaging teeth 101 are spaced apart along the switching direction Z. Therefore, when the lock sleeve 110 is in the locking position, the first connecting member 120 and the second connecting member 130 cannot rotate relative to each other, realizing the locking between the two wheels, and at this time, the lock sleeve 110 is unlocked from the fixed plate 100.

[0067] Generally speaking, corresponding to the unlocking position, locking position, and parking position of the lock sleeve 110, the parking mechanism of the vehicle according to the present application has three states: an unlocking state (the two wheels rotate independently), a locking state (the two wheels are locked and can be driven to rotate together), and a parking state (the two wheels are locked relative to the vehicle frame). Therefore, the parking mechanism of the vehicle according to the present application is applicable to vehicles with two independently driven wheels. However, vehicles with more than two independently driven wheels should also be within the protection scope of the present application.

[0068] Further, along the switching direction Z, the locking position is located between the unlocking position and the parking position. The arrangement of the unlocking position, locking position, and parking position conforms to the control logic of the parking mechanism and is reasonably arranged.

[0069] Referring to Figure 3 and Figure 4 , the first connecting member 120 and the second connecting member 130 can be selected as cylindrical structures, and the drive half shafts corresponding to the vehicle wheels can also be connected by splines. Therefore, when the two wheels rotate, the first connecting member 120 and the second connecting member 130 can rotate respectively with the rotation of the two wheels.

[0070] Referring to Figure 1 and Figure 3 , a spline groove 112 is provided in the lock sleeve 110, and a first spline tooth 121 that mates with the spline groove 112 is provided on the outside of the first connecting member 120, and a second spline tooth 131 that mates with the spline groove 112 is provided on the outside of the second connecting member 130. When the lock sleeve 110 is in the unlocking position, the lock sleeve 110 is sleeved on the first connecting member 120 through the cooperation of the spline groove 112 and the first spline tooth 121. Therefore, at this time, there is no rotation between the first connecting member 120 and the lock sleeve 110, and the lock sleeve 110 is movable relative to the first connecting member 120 along the switching direction Z. When the lock sleeve 110 is in the locking position or the parking position, the lock sleeve 110 is sleeved on the second connecting member 130 through the cooperation of the spline groove 112 and the second spline tooth 131. Therefore, there is also no rotation between the second connecting member 130 and the lock sleeve 110, and thus the first connecting member 120 and the second connecting member 130 are locked.

[0071] In other words, during the process of the lock sleeve 110 moving from the unlocking position to the locking position, the spline groove 112 is engaged with the second spline tooth 131. During the process of the lock sleeve 110 moving from the locking device to the parking position, the spline groove 112 remains in engagement with the second spline tooth 131.

[0072] Referring to Figure 5 and Figure 6, the second engaging tooth 111 is located on the end face of the lock sleeve 110 close to the fixed plate 100 along the switching direction Z, which can reduce the moving stroke of the lock sleeve 110 along the switching direction Z and is convenient for control. The first engaging tooth 101 is a straight tooth, and the first engaging tooth 101 is distributed around the axis of the lock sleeve 110. Similarly, the second engaging tooth 111 is also a straight tooth and is distributed around the axis of the lock sleeve 110. When the lock sleeve 110 is in the parking position, the second engaging tooth 111 is spaced and fitted between the first engaging teeth 101, so that the lock sleeve 110 cannot rotate relative to the fixed plate 100.

[0073] Specifically for the driving mode of the lock sleeve 110, refer to Figures 1 to 4 , the parking mechanism further includes a fork 140 and a driving element 160. The fork 140 is clamped to the lock sleeve 110. The driving element 160 is connected to the fork 140 and is used to drive the fork 140 along the switching direction Z. The driving element 160 drives the fork 140 through a transmission rod 150, so that the lock sleeve 110 can move along the switching direction Z.

[0074] Furthermore, the parking mechanism further includes a fork sleeve 180, and the fork sleeve 180 is sleeved on the lock sleeve 110. The fork sleeve 180 can rotate relative to the lock sleeve 110 around the axis of the lock sleeve 110, and the fork sleeve 180 is fixed relative to the lock sleeve 110 along the switching direction Z. The fork 140 is sleeved on the fork sleeve 180. Through the setting of the fork sleeve 180, the lock sleeve 110 can rotate relative to the fork 140, so the driving of the lock sleeve 110 by the fork 140 will not affect the rotation of the lock sleeve 110. Specifically, the fork 140 is embedded in the outside of the fork sleeve 180, so that the fork sleeve 180 is fixed relative to the fork 140.

[0075] Optionally, the driving element 160 is a linear motor, and the output end of the driving element 160 is connected to the fork 140. When the driving element 160 is started, its output end moves along the switching direction Z, so as to drive the fork 140, the fork sleeve 180 and the lock sleeve 110.

[0076] Combined with Figure 7 As shown, the parking mechanism further includes a stopper 170 and a transmission rod 150. The transmission rod 150 passes through the fork 140 and is fixed to the fork 140. The stopper 170 is fixed relative to the vehicle frame. Specifically, refer to Figure 1 and Figure 2, the limiter 170 is arranged on the fixed plate 100. The transmission rod 150 is provided with at least three limit grooves 151; when the lock sleeve 110 is respectively located at the unlocking position, the locking position and the parking position, the limiter 170 is respectively abutted against the three limit grooves 151. In detail, the transmission rod 150 is provided with a first limit groove 152, a second limit groove 153 and a third limit groove 154 at one end close to the limiter 170, and the first limit groove 152, the second limit groove 153 and the third limit groove 154 are arranged in sequence along the switching direction Z. When the lock sleeve 110 is located at the unlocking position, the limiter 170 abuts against the first limit groove 152; when the lock sleeve 110 is located at the locking position, the limiter 170 abuts against the second limit groove 153; when the lock sleeve 110 is located at the parking position, the limiter 170 abuts against the third limit groove 154.

[0077] The arrangement of the limiter 170 and the transmission rod 150 can effectively position the travel of the lock sleeve 110 along the switching direction Z through the control of the driving element 160, thereby improving the accuracy of the driving element 160 in controlling the lock sleeve 110. At the same time, due to the self-locking function of the limiter 170 and the transmission rod 150, if the driving element 160 is powered off, the lock sleeve 110 will not leave the current state, and the performance stability is good.

[0078] Furthermore, the limiter 170 includes a shell 171, a limit ball 172 and an elastic member. The shell 171 is fixed relative to the frame of the vehicle. The limit ball 172 is located at the end of the shell 171, and the limit ball 172 is used to embed in the limit groove 151. The elastic member is arranged in the shell 171 and connected to the limit ball 172, and is used to press against the limit ball 172. The setting of the elastic member can adjust the stroke of the limit ball 172, so that the limit ball 172 can switch between the limit grooves 151 more smoothly.

[0079] The present application also provides a vehicle, including the parking mechanism of the vehicle according to the above. The vehicle according to the present application has high internal space utilization, simple structure, and reduces the manufacturing cost of the whole vehicle.

[0080] Optionally, the vehicle further includes a first wheel, a second wheel and a frame. The first wheel is provided with a first semi-axle, and the first semi-axle is connected to the first connecting member 120. The second wheel is provided with a second semi-axle, and the second semi-axle is connected to the second connecting member 130. The first wheel and the second wheel are rotatable relative to the frame. The first wheel and the second wheel can be the front wheels of the vehicle or the rear wheels of the vehicle. When the lock sleeve 110 is in the parking position, the first wheel and the second wheel are locked and cannot rotate relative to the frame, so that the vehicle is parked.

[0081] Optionally, the vehicle further includes a first motor and a second motor. The first motor is connected to the first half shaft and is used to drive the first wheel to rotate. The second motor is connected to the second half shaft and is used to drive the second wheel to rotate. When the lock sleeve 110 is in the locked position, the first wheel and the second wheel are locked, and the first motor and the second motor jointly drive the first wheel and the second wheel to rotate. When the lock sleeve 110 is in the unlocked position, the first motor drives the first wheel to rotate, while the second motor drives the second wheel to rotate, so that the first wheel and the second wheel can be independently driven respectively.

[0082] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the technical field of this application. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. Terms such as "arranged" that appear herein can either mean that one component is directly attached to another component or that one component is attached to another component through an intermediate member. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0083] This application has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of illustration and example, and are not intended to limit this application to the scope of the described embodiments. Those skilled in the art can understand that according to the teachings of this application, more variations and modifications can be made, and these variations and modifications all fall within the scope claimed by this application.

Claims

1. A parking mechanism for a vehicle, characterized in that: The parking mechanism of the vehicle comprises: A fixing plate, wherein the fixing plate is provided with first meshing teeth; a first connecting member, the first connecting member being configured to be connected to a wheel of the vehicle; a second connecting member, the second connecting member being spaced apart from the first connecting member along the switching direction and the second connecting member being used to be connected to another wheel of the vehicle; a locking sleeve, the locking sleeve being movable relative to the first connecting member along the switching direction, the locking sleeve being provided with second meshing teeth; Wherein, when the lock sleeve is located at the parking position, the second meshing tooth cooperates with the first meshing tooth, the lock sleeve is sleeved onto the first connecting member and the second connecting member, and the lock sleeve is non-rotatable relative to the first connecting member and the second connecting member.

2. The parking mechanism for a vehicle according to claim 1, characterized in that: The locking sleeve also has a locking position and an unlocking position relative to the first connecting member along the switching direction. During the process of moving from the unlocking position to the locking position, the locking sleeve is sleeved onto the second connecting member and cannot rotate relative to the second connecting member, and the second meshing teeth are spaced apart from the first meshing teeth along the switching direction.

3. The parking mechanism for a vehicle according to claim 2, characterized in that: In the switching direction, the locking position is located between the unlocking position and the parking position.

4. The parking mechanism for a vehicle according to claim 1, characterized in that: The second meshing tooth is located on an end surface of the locking sleeve close to the fixing plate along the switching direction.

5. The parking mechanism for a vehicle according to claim 2, characterized in that: The lock sleeve is provided with a spline groove, the first connecting member is provided with a first spline tooth matched with the spline groove, and the second connecting member is provided with a second spline tooth matched with the spline groove.

6. The parking mechanism for a vehicle according to claim 5, characterized in that: During the movement of the locking sleeve from the unlocking position to the locking position, the spline groove is engaged with the second spline tooth.

7. The parking mechanism for a vehicle according to claim 5, characterized in that: During the process of the lock sleeve being moved from the locking device to the parking position, the spline groove and the second spline teeth maintain a matching state.

8. The parking mechanism for a vehicle according to claim 2, characterized in that: The parking mechanism further comprises: a shift fork, the shift fork being clamped to the locking sleeve; and A drive element is connected to the shift fork and is used to drive the shift fork along the switching direction.

9. The parking mechanism for a vehicle according to claim 8, characterized in that: The parking mechanism further comprises a fork sleeve, the fork sleeve is sleeved on the lock sleeve, the fork sleeve is rotatable relative to the lock sleeve, the fork sleeve is fixed relative to the lock sleeve along the switching direction, and the shift fork is sleeved on the fork sleeve.

10. The parking mechanism for a vehicle according to claim 8, characterized in that: The parking mechanism also includes a limiter and a transmission rod, wherein the transmission rod is fixed to the shift fork, the limiter is fixed relative to the frame of the vehicle, and the transmission rod is provided with at least three limit grooves; when the lock sleeve is respectively located at the unlocking position, the locking position and the parking position, the limiter is correspondingly abutted against the three limit grooves.

11. The parking mechanism for a vehicle according to claim 10, characterized in that: The stopper comprises: a housing fixed relative to a frame of the vehicle; a limiting ball, the limiting ball being located at an end of the housing and being used to be embedded in the limiting groove; and An elastic member is disposed in the housing and connected to the limiting ball, and is used to press against the limiting ball.

12. A vehicle, characterized in that: A parking mechanism for a vehicle comprising the vehicle according to any one of claims 1 to 11.

13. The vehicle according to claim 12, characterized in that Also includes: a first wheel, the first wheel being provided with a first half-axle, the first half-axle being connected to the first connecting member; a second wheel, the second wheel being provided with a second half-shaft, the second half-shaft being connected to the second connecting member; as well as A frame, the first wheel and the second wheel are rotatable relative to the frame.

14. The vehicle according to claim 13, characterized in that Also includes: a first motor, the first motor being connected to the first half-shaft and configured to drive the first wheel to rotate; as well as A second motor is connected to the second half shaft and is used for driving the second wheel to rotate.

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