Driving axle parking locking mechanism and vehicle

Abstract

The invention relates to the technical field of parking systems, in particular to a drive axle parking locking mechanism and a vehicle. The drive axle parking locking mechanism structurally comprises a motor; the transmission shaft is in transmission connection with the motor; the movable fluted disc is in transmission connection with the transmission shaft through a crank connecting rod assembly; the fixed fluted disc is connected with a main speed reducer gear shaft of the vehicle, and the fixed fluted disc can be meshed with the movable fluted disc; and the guide sleeve is arranged opposite to the fixed fluted disc, the movable fluted disc partially penetrates through the guide sleeve, and the movable fluted disc can move between the guide sleeve and the fixed fluted disc. According to the drive axle parking locking mechanism and the vehicle, the problem that an existing vehicle is insufficient in parking strength and impact resistance can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of parking systems, and in particular to a drive axle parking lock mechanism and a vehicle. Background Art

[0002] With the rapid development of new energy electric vehicles, the market share of new energy trucks has gradually expanded, and higher requirements have been placed on the vehicle's cargo capacity and safety.

[0003] Traditional electric vehicles usually use a cable-type wheel-side parking system, which has a high risk of slipping when driving on a steep slope under full load. In addition, some vehicles also use a ratchet-type parking mechanism, but its parking strength and impact resistance are still insufficient. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a drive axle parking lock mechanism and a vehicle to solve the problem of insufficient parking strength and impact resistance of existing vehicles.

[0005] According to a first aspect of the present invention, a drive axle parking lock mechanism is provided, wherein the drive axle parking lock mechanism comprises: a motor; a transmission shaft, which is transmission-connected to the motor; a movable sprocket, which is transmission-connected to the transmission shaft through a crank-connecting rod assembly; a fixed sprocket, which is connected to the main reducer gear shaft of the vehicle, and the fixed sprocket can engage with the movable sprocket; and a guide sleeve, which is arranged opposite to the fixed sprocket, the movable sprocket part is inserted into the guide sleeve, and the movable sprocket can move between the guide sleeve and the fixed sprocket.

[0006] Preferably, the axial direction of the transmission shaft is perpendicular to the axial direction of the main reducer gear shaft, and the crank-connecting rod assembly includes: a rocker arm, a first end of which is connected to the transmission shaft; a connecting rod, a first end of which is pivotally connected to the second end of the rocker arm; and a transmission block, pivotally connected to the second end of the connecting rod, the guide sleeve is mounted on the outside of the transmission block, and the movable gear plate is installed on the transmission block, and the transmission block can drive the movable gear plate to move in the axial direction of the main reducer gear shaft.

[0007] Preferably, an abutment portion is provided on the connecting rod, and when the rocker arm rotates to a preset angle with the axial direction of the main reducer gear shaft, the abutment portion abuts against the end surface of the transmission block, so that the connecting rod cannot continue to rotate.

[0008] Preferably, during the rotation of the rocker arm, when the angle between the rocker arm and the axial direction of the main reducer gear shaft gradually increases, the preset angle is greater than 180°.

[0009] Preferably, a through hole is formed inside the transmission block, the second end of the connecting rod extends into the through hole, the width of the through hole is greater than the width of the second end of the connecting rod, the abutment is formed in the middle of the connecting rod in the length direction, and the abutment protrudes from the connecting rod along the width direction.

[0010] Preferably, a first pin is provided at the second end of the rocker arm, a second pin is provided in the transmission block, the first pin and the second pin are parallel to the transmission shaft, and the first end and the second end of the connecting rod are rotatably connected to the first pin and the second pin respectively.

[0011] Preferably, the guide sleeve is formed in a ring shape, a guide groove is formed in the inner ring of the guide sleeve, an annular connecting part is formed in the middle of the movable gear plate, the connecting part is sleeved on the outside of the transmission block, and the outer ring of the connecting part is provided with a guide block capable of cooperating with the guide groove.

[0012] Preferably, the drive axle parking lock mechanism further includes a fixed housing, and the motor and the guide sleeve are mounted on the fixed housing.

[0013] Preferably, the motor is transmission-connected to the transmission shaft via a reducer, a plug interface is provided on the motor, and the vehicle controller of the vehicle is connected to the plug interface via a wiring harness.

[0014] According to a second aspect of the present invention, a shower is provided, wherein the vehicle comprises the drive axle parking lock mechanism as described above.

[0015] The drive axle parking lock mechanism and vehicle of the embodiment of the present invention are characterized in that the transmission shaft is connected to the motor in a transmission manner. The movable sprocket is connected to the transmission shaft through a crank-connecting rod assembly. The fixed sprocket is connected to the main reducer gear shaft of the vehicle, and the fixed sprocket can mesh with the movable sprocket. The guide sleeve is arranged opposite to the fixed sprocket. The movable sprocket is partially inserted into the guide sleeve, and the movable sprocket can move between the guide sleeve and the fixed sprocket. In this arrangement, the pawl is replaced by the meshing structure of the sprocket. Since the sprocket has a large number of meshing teeth and the crank-connecting rod assembly can be self-locking, the parking strength and impact resistance of the vehicle under large slopes are greatly enhanced. In addition, a platform design can be formed by changing the motor power. This can effectively solve the problem of insufficient parking strength and impact resistance of existing vehicles.

[0016] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 Schematic diagram of the drive axle parking lock mechanism according to the present invention.

[0019] Figure 2 FIG. 4 is a schematic diagram of a drive axle parking lock mechanism according to another angle of the present invention.

[0020] Figure 3 FIG. 4 is a schematic diagram of the drive axle parking lock mechanism according to another angle of the present invention.

[0021] Figure 4 2 is a cross-sectional view of a drive axle parking lock mechanism according to the present invention.

[0022] Figure 5 Schematic diagram of a partial structure of a drive axle parking lock mechanism according to the present invention.

[0023] Figure 6 Schematic diagram of a fixed housing of a drive axle parking lock mechanism according to the present invention.

[0024] Figure markings: 1-motor; 10-plug interface; 11-reducer; 2-transmission shaft; 3-movable gear plate; 30-connecting part; 301-guide block; 4-fixed gear plate; 5-guide sleeve; 50-guide groove; 51-fixing bolt; 60-steering; 601-first angle; 61-rocker arm; 62-connecting rod; 620-abutment part; 63-transmission block; 630-through hole; 71-first pin shaft; 72-second pin shaft; 8-fixed housing; 9-main reducer gear shaft. DETAILED DESCRIPTION

[0025] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0026] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0027] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0028] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0029] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0030] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0031] The terms used herein are only used to describe various examples and are not used to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprising" and "having" list the existence of the stated features, quantities, operations, components, elements and / or their combinations, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0032] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0033] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0034] like Figures 1 to 6 As shown, according to a first aspect of the present invention, a drive axle parking lock mechanism is provided, which includes a motor 1, a transmission shaft 2, a movable gear plate 3, a fixed gear plate 4 and a guide sleeve 5.

[0035] In the following description, reference will be made to Figures 1 to 6 The specific structure of the above components of the drive axle parking lock mechanism and the connection relationship of the above components are described in detail.

[0036] like Figures 1 to 6 As shown, in the embodiment, the transmission shaft 2 can be connected to the motor 1 by transmission, and the motor 1 is used to drive the transmission shaft 2 to rotate. The mobile gear disc 3 can be connected to the transmission shaft 2 by transmission through the crank connecting rod assembly, so that the mobile gear disc 3 can move with the rotation of the transmission shaft 2. The fixed gear disc 4 can be fixedly connected to the main reducer gear shaft 9 of the vehicle. The fixed gear disc 4 can mesh with the mobile gear disc 3 to achieve parking lock. The guide sleeve 5 can be arranged opposite to the fixed gear disc 4, and is used to guide the movement of the mobile gear disc 3 and limit the movement range of the mobile gear disc 3. The mobile gear disc 3 can be partially penetrated by the guide sleeve 5. The mobile gear disc 3 can reciprocate between the guide sleeve 5 and the fixed gear disc 4. In this way, the existing pawl structure is replaced by the meshing structure of the gear disc. Since the number of meshing teeth of the gear disc is large and the crank connecting rod assembly can be self-locking, the parking strength and impact resistance of the vehicle under a large slope are greatly enhanced. In addition, the platform design can also be achieved by changing the power of the motor 1.

[0037] Preferably, Figures 1 to 4As shown, in the embodiment, the motor 1 can be arranged vertically. The motor 1 can be connected to the transmission shaft 2 through the reducer 11. The axial direction of the motor 1 can be perpendicular to the axial direction of the transmission shaft 2, and the end of the transmission shaft 2 can be inserted and installed in the reducer 11. Such an arrangement can adjust the speed of the motor 1 through the reducer 11, and it is easy to transmit power to the moving gear disc 3.

[0038] Preferably, Figures 1 to 5 As shown, in the embodiment, the axial direction of the main reducer gear shaft 9 can be perpendicular to the axial direction of the motor 1 and the axial direction of the transmission shaft 2. The fixed toothed disc 4 can be sleeved and fixed on the outer periphery of the end of the main reducer gear shaft 9, and the fixed toothed disc 4 and the main reducer gear shaft 9 can be coaxially inspected. The transmission shaft 2 can be connected to the crank connecting rod assembly, thereby converting the rotation of the transmission shaft 2 into the linear motion of the mobile toothed disc 3, so as to drive the mobile toothed disc 3 to move along the axial direction of the main reducer gear shaft 9.

[0039] Preferably, Figures 1 to 5 As shown, in the embodiment, the crank connecting rod assembly may include a rocker arm 61, a connecting rod 62 and a transmission block 63. The first end of the rocker arm 61 (which may be Figure 4 The first end of the connecting rod 62 (as shown in the figure) can be fixedly connected to the transmission shaft 2, so that the transmission shaft 2 can drive the rocker arm 61 to rotate. Figure 4 The left end shown in FIG. 1 and the second end of the rocker arm 61 (which may be Figure 4 The transmission block 63 can be connected to the second end of the connecting rod 62 (which can be as shown in the figure) so that the rocker arm 61 can drive the connecting rod 62 to rotate. Figure 4 The guide sleeve 5 can be sleeved on the outside of the transmission block 63, and the movable toothed disc 3 is installed on the transmission block 63, so that the transmission block 63 moves under the guidance of the guide sleeve 5, and then the transmission block 63 drives the movable toothed disc 3 to move in the axial direction of the main reducer gear shaft 9.

[0040] Further, preferably, Figures 1 to 5 As shown, in the embodiment, the first end of the rocker arm 61 may be provided with a quadrilateral hole. The transmission shaft 2 is passed through the quadrilateral hole of the rocker arm 61. Preferably, the transmission shaft 2 may be formed with a quadrilateral protrusion at a position corresponding to the quadrilateral hole, so that the transmission shaft 2 can be just engaged with the first end of the rocker arm 61. Preferably, the steering of the transmission shaft 2 is controlled by the steering of the motor 1, so that the transmission shaft 2 can rotate in both clockwise and counterclockwise directions, thereby changing the rotation direction of the rocker arm 61 to control the movement direction of the movable gear disc 3.

[0041] Preferably, Figures 1 to 5As shown, in the embodiment, a first pin shaft 71 may be provided at the second end of the rocker arm 61, and the first pin shaft 71 may be provided perpendicular to the connecting rod 62. The first end of the connecting rod 62 is rotatably connected to the first pin shaft 71 (may be connected by a bearing), so that the connecting rod 62 can rotate relative to the second end of the rocker arm 61. Similarly, a second pin shaft 72 may be installed in the transmission block 63, and the second pin shaft 72 may be provided perpendicular to the connecting rod 62. The second end of the connecting rod 62 is rotatably connected to the second pin shaft 72 (may be connected by a bearing), so that the connecting rod 62 can rotate relative to the transmission block 63. Further, preferably, the first pin shaft 71 and the second pin shaft 72 may be provided parallel to the transmission shaft 2.

[0042] Preferably, Figures 1 to 5 As shown, in an embodiment, the transmission block 63 can be formed into a columnar structure, and the transmission block 63 can be arranged coaxially with the main reducer gear shaft 9. A through hole 630 can be formed in the middle of the transmission block 63, and the shape of the through hole 630 can be cylindrical or bar-shaped. The second pin 72 can be arranged perpendicular to the extension direction of the through hole 630. Preferably, the second pin 72 can be arranged in the middle of the length direction of the through hole 630. The second end of the connecting rod 62 can extend into the through hole 630 of the transmission block 63 and connect with the second pin 72. The width of the through hole 630 should be greater than the width of the second end of the connecting rod 62, so that the second end of the connecting rod 62 can rotate to a certain extent inside the transmission block 63.

[0043] Preferably, Figures 1 to 5 As shown, in the embodiment, the guide sleeve 5 can be formed into a ring shape, and a guide groove 50 is formed on the inner ring of the guide sleeve 5, and the guide groove 50 can extend along the axial direction of the guide sleeve 5. A ring-shaped connecting portion 30 can be formed in the middle of the mobile toothed disc 3, and the connecting portion 30 can protrude from the disc surface of the mobile toothed disc 3 along the axial direction. The connecting portion 30 is arranged on the side of the mobile toothed disc 3 facing the guide sleeve 5, and the outer diameter of the connecting portion 30 is smaller than the inner diameter of the guide sleeve 5. The connecting portion 30 can be sleeved on the outside of the transmission block 63, and the connecting portion 30 is fixed to the transmission block 63 by a retaining spring, thereby fixing the transmission block 63 and the mobile toothed disc 3 together. A guide block 301 that can cooperate with the guide groove 50 can be provided on the outer ring of the connecting portion 30. Preferably, the guide groove 50 can be a dovetail groove, and a plurality of guide grooves 50 are arranged at intervals along the circumferential direction on the inner periphery of the guide sleeve 5. The number of guide blocks 301 can be equal to the number of guide grooves 50, and multiple guide blocks 301 can be arranged in a one-to-one correspondence with multiple guide grooves 50. In this way, the guide sleeve 5 can limit the connecting portion 30 of the movable gear plate 3, thereby keeping the movable gear plate 3 moving in the axial direction of the main reducer gear shaft 9.

[0044] Further, preferably, Figures 1 to 4 As shown, in the embodiment, a plurality of fixing bolts 51 may be provided on the guide sleeve 5. Specifically, the plurality of fixing bolts 51 may be provided at intervals along the circumferential direction on the side of the guide sleeve 5 facing the crank connecting rod assembly. Figure 6 As shown, the drive axle parking lock mechanism may further include a fixed housing 8 (to avoid blocking other components, the fixed housing 8 is only Figure 6 The fixed housing 8 may be a main reducer housing, and the guide sleeve 5 may be mounted on the fixed housing 8 by means of fixing bolts 51. More preferably, the motor 1 may also be fixedly mounted on the fixed housing 8 by means of bolts.

[0045] Preferably, Figure 5 As shown, in an embodiment, the connecting rod 62 may also be provided with an abutment portion 620 to achieve self-locking of the crank connecting rod assembly. Specifically, the abutment portion 620 may be formed in the middle of the length direction of the connecting rod 62, and the abutment portion 620 may protrude from the connecting rod 62 in the width direction. The side of the abutment portion 620 facing the transmission block 63 may be formed as a vertical surface, and when the connecting rod 62 rotates to a certain angle, the vertical surface of the abutment portion 620 will abut against the end surface of the transmission block 63, so that the connecting rod 62 cannot continue to rotate. Further, preferably, the end surface of the transmission block 63 may be provided with a certain inclination angle, so that the vertical surface of the abutment portion 620 can fit with the end surface of the transmission block 63.

[0046] In the embodiment, when the mobile sprocket 3 is meshed with the fixed sprocket 4, the mobile sprocket 3 will be subjected to the axial force from the fixed sprocket 4, pushing the mobile sprocket 3 to move away from the fixed sprocket 4. In order to prevent the parking lock mechanism of the drive axle from failing under the influence of the reverse drag force of the wheel, the crank-connecting rod assembly can be mechanically self-locked to prevent the mobile sprocket 3 from being separated from the mobile sprocket 3.

[0047] Specifically, Figure 1As shown, in the embodiment, the axis of the transmission shaft 2 can be located on the same horizontal plane as the axis of the main reducer gear shaft 9. The rocker arm 61 can be rotated clockwise from the vertical upward state. In this case, when the rocker arm 61 rotates to be parallel to the axial direction of the main reducer gear shaft 9, the movable toothed disc 3 will move to the farthest distance, and the movable toothed disc 3 is fully meshed with the fixed toothed disc 4. Thereafter, the rocker arm 61 continues to rotate a certain angle (such as 5°) in the clockwise direction. At this time, the abutment portion 620 just abuts the end face of the transmission block 63, and the crank connecting rod assembly realizes self-locking. In this case, the movable toothed disc 3 and the fixed toothed disc 4 are still meshed (not completely disengaged). At this time, if the movable toothed disc 3 is subjected to the axial force from the fixed toothed disc 4, the abutment portion 620 makes the connecting rod 62 unable to continue to rotate, so the movable toothed disc 3 cannot push the connecting rod 62, so that the position of the movable toothed disc 3 will not change, thereby preventing the movable toothed disc 3 from separating from the fixed toothed disc 4.

[0048] Further, preferably, Figure 5 As shown, in the embodiment, when the rocker arm 61 rotates to an angle with the axial direction of the main reducer gear shaft 9 (i.e., Figure 5 When the first included angle 601 shown in the figure reaches a preset angle, the abutment portion 620 abuts against the end surface of the transmission block 63, so that the connecting rod 62 cannot continue to rotate (i.e., it only enters the self-locking state in the above embodiment). During the rotation of the rocker arm 61, when the included angle between the rocker arm 61 and the axial direction of the main reducer gear shaft 9 (i.e., Figure 5 When the first angle 601 shown in the figure gradually increases (at this time, the direction 60 of the rocker arm 61 is clockwise), the preset angle should be greater than 180° (can be 185°). In this way, when the movable sprocket 3 pushes the second end of the connecting rod 62 to move away from the fixed sprocket 4, the rocker arm 61 will still keep the direction 60 unchanged, thereby ensuring that the rotation direction of the connecting rod 62 will not change, and the connecting rod 62 cannot continue to rotate due to the restriction of the abutment portion 620, thereby ensuring that the movable sprocket 3 and the fixed sprocket 4 will not separate, thereby greatly enhancing the parking strength and impact resistance of the vehicle on a large slope.

[0049] Preferably, Figure 4 As shown, in the embodiment, the motor 1 may also be provided with a plug interface 10. The vehicle controller of the vehicle may be connected to the plug interface 10 through a low-voltage wiring harness, thereby controlling the direction and speed of the motor 1. The vehicle controller can improve the parking capacity of the vehicle by increasing the power of the motor 1, thereby realizing the platform universalization of the parking lock mechanism of the drive axle.

[0050] Furthermore, according to a second aspect of the present invention, there is provided a vehicle including the transaxle parking lock mechanism as described above.

[0051] During use, the drive axle parking lock mechanism replaces the existing pawl structure with the meshing structure of the toothed disc. Since the toothed disc has a large number of meshing teeth and its crank-connecting rod assembly can achieve self-locking, the parking strength and impact resistance of the vehicle on a large slope are greatly enhanced. In addition, the drive axle parking lock mechanism can also achieve platform universality by changing the power of the motor 1.

[0052] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A drive axle parking lock mechanism, provided on a vehicle, characterized in that: The drive axle parking lock mechanism comprises: Motor; A transmission shaft, drivingly connected to the motor; A movable gear plate is connected to the transmission shaft via a crank-connecting rod assembly; A fixed sprocket connected to the final reducer gear shaft of the vehicle, the fixed sprocket being capable of meshing with the movable sprocket; and The guide sleeve is arranged opposite to the fixed toothed disc, the movable toothed disc is partially passed through the guide sleeve, and the movable toothed disc can move between the guide sleeve and the fixed toothed disc.

2. The drive axle parking lock mechanism according to claim 1, characterized in that: The axial direction of the transmission shaft is perpendicular to the axial direction of the main reducer gear shaft, and the crank-connecting rod assembly includes: A rocker arm, a first end of which is connected to the transmission shaft; a connecting rod having a first end pivotally connected to a second end of the rocker arm; and The transmission block is pivotally connected to the second end of the connecting rod, the guide sleeve is sleeved on the outside of the transmission block, the movable gear plate is installed on the transmission block, and the transmission block can drive the movable gear plate to move in the axial direction of the main reducer gear shaft.

3. The drive axle parking lock mechanism according to claim 2, characterized in that: The connecting rod is provided with an abutment portion. When the rocker arm rotates to a preset angle with the axial direction of the main reducer gear shaft, the abutment portion abuts against the end surface of the transmission block, so that the connecting rod cannot continue to rotate.

4. The drive axle parking lock mechanism according to claim 3, characterized in that: During the rotation of the rocker arm, when the angle between the rocker arm and the axial direction of the main reducer gear shaft gradually increases, the preset angle is greater than 180°.

5. The drive axle parking lock mechanism according to claim 3, characterized in that: A through hole is formed inside the transmission block, the second end of the connecting rod extends into the through hole, the width of the through hole is greater than the width of the second end of the connecting rod, the abutment is formed in the middle of the connecting rod in the length direction, and the abutment protrudes from the connecting rod along the width direction.

6. The drive axle parking lock mechanism according to claim 3, characterized in that: A first pin is arranged at the second end of the rocker arm, a second pin is arranged in the transmission block, the first pin and the second pin are parallel to the transmission shaft, and the first end and the second end of the connecting rod are rotatably connected to the first pin and the second pin respectively.

7. The drive axle parking lock mechanism according to claim 2, characterized in that: The guide sleeve is formed in an annular shape, a guide groove is formed in the inner ring of the guide sleeve, an annular connecting part is formed in the middle of the movable gear plate, the connecting part is sleeved on the outside of the transmission block, and the outer ring of the connecting part is provided with a guide block capable of cooperating with the guide groove.

8. The drive axle parking lock mechanism according to claim 1, characterized in that: The drive axle parking lock mechanism also includes a fixed housing, and the motor and the guide sleeve are mounted on the fixed housing.

9. The drive axle parking lock mechanism according to claim 1, characterized in that: The motor is connected to the transmission shaft through a reducer, a plug interface is provided on the motor, and the vehicle controller of the vehicle is connected to the plug interface through a wiring harness.

10. A vehicle, characterized in that: The vehicle includes the transaxle parking lock mechanism according to any one of claims 1 to 9.

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