阅读说明：本技术 一种锁止机构、转向系统和车辆 (Locking mechanism, steering system and vehicle ) 是由 席玉岭 江军 赵策 邴建 于 2021-08-03 设计创作，主要内容包括：本发明提供一种锁止机构、转向系统和车辆,锁止机构包括：转动件,所述转动件在锁止姿态和解锁姿态之间转动；锁止组件,所述锁止组件在所述锁止姿态时与所述转动件接触,限制所述转动件转动；所述锁止组件在所述解锁姿态时与所述转动件分离；第一驱动组件,所述第一驱动组件与所述转动件连接,配置为驱动所述转动件转动。利用第一驱动组件驱动转动件转动,使转动件能够在锁止姿态和解锁姿态中转换,这种方式减少了人工干预,有利于节省时间和精力。(The invention provides a locking mechanism, a steering system and a vehicle, wherein the locking mechanism comprises: a turn piece that turns between a locked attitude and an unlocked attitude; a locking assembly that contacts the rotating member in the locking posture to restrict rotation of the rotating member; the locking assembly is separated from the rotating member in the unlocking posture; the first driving assembly is connected with the rotating piece and configured to drive the rotating piece to rotate. Utilize first drive assembly drive to rotate the piece and rotate, make to rotate the piece and can change in locking gesture and unblock gesture, this kind of mode has reduced manual intervention, is favorable to saving time and energy.)

1. A locking mechanism, comprising:

a turn piece that turns between a locked attitude and an unlocked attitude;

a locking assembly that contacts the rotating member in the locking posture to restrict rotation of the rotating member; the locking assembly is separated from the rotating member in the unlocking posture;

the first driving assembly is connected with the rotating piece and configured to drive the rotating piece to rotate.

2. The locking mechanism of claim 1, further comprising:

the first elastic piece is connected with the rotating piece;

when the rotating piece is positioned at the locking posture, the first elastic piece stores a first elastic restoring force;

when the rotating piece is located at the unlocking posture, the first elastic piece releases the first elastic restoring force, and the rotating piece rotates for a preset angle under the action of the first elastic restoring force;

the first driving assembly is configured to provide a driving force in a direction opposite to the elastic restoring force.

3. The locking mechanism of claim 2, wherein the first resilient member comprises a torsion spring; and/or the presence of a gas in the gas,

the first drive member includes a motor.

4. The locking mechanism of claim 1, wherein the locking assembly comprises:

the locking pieces are distributed in parallel with the rotating piece;

and the second driving assembly is connected with the locking piece and is configured to drive the locking piece to be separated from the rotating piece.

5. The locking mechanism of claim 4, wherein the locking assembly further comprises:

the second elastic piece is connected with the locking piece;

when the rotating piece is located at the unlocking posture, the second elastic piece stores a second elastic restoring force, and the locking piece is far away from the rotating piece under the action of the second elastic restoring force; or, when the rotating member is in the locking posture, the second elastic member stores a third elastic restoring force, and the locking member is in contact with the rotating member under the action of the third elastic restoring force; when the rotating piece is located at the unlocking posture, the second elastic piece releases a third elastic restoring force;

the second driving assembly is configured to provide a driving force in an opposite direction to the second elastic restoring force or the third elastic restoring force.

6. The locking mechanism of claim 5, wherein the second resilient member comprises a compression or tension spring; and/or the second drive assembly comprises a motor.

7. The locking mechanism of claim 1, wherein the rotating member comprises:

a first lever portion that contacts the locking assembly in the locking posture and is separated from the locking assembly in the unlocking posture;

and the second rod part is connected with the first rod part and is vertical to the first rod part.

8. The locking mechanism of claim 7, wherein the rotary member is L-shaped.

9. A steering system, characterized in that the turning system comprises:

a rotating shaft;

the rocker arm is connected with the rotating shaft;

the latch mechanism of any one of claims 1 to 8, a rotary member of the latch mechanism contacting the rocker arm in the latched position to limit rotation of the rocker arm relative to the rotary shaft; the rotating piece can rotate relative to the axis of the rotating shaft when in the unlocking posture.

10. A vehicle characterized in that it comprises a steering system according to claim 9.

Technical Field

The invention relates to the field of vehicles, in particular to a locking mechanism, a steering system and a vehicle.

Background

Currently, when locking the wheels of a vehicle, it is necessary to prevent the rocker arm from rotating. For example, in the rear wheel steering centering locking mechanism, which is often manually operated, as shown in fig. 1, the steering rocker arm 20 is locked by applying an external force to the locking pin 10 so that the steering rocker arm 20 cannot rotate along the rocker rotation shaft 30. In the mode for realizing the steering locking, the locking pin 10 is fixedly connected with the rocker arm 20, the locking pin 10 needs to be manually controlled to lock the rocker arm 20, so that not only is time and energy wasted, but also the reliability is low, and the requirement cannot be met.

Disclosure of Invention

In view of the above, the invention provides a locking mechanism, a steering system and a vehicle.

In order to solve the technical problems, the invention adopts the following technical scheme:

a lock mechanism according to an embodiment of a first aspect of the present invention includes:

a turn piece that turns between a locked attitude and an unlocked attitude;

a locking assembly that contacts the rotating member in the locking posture to restrict rotation of the rotating member; the locking assembly is separated from the rotating member in the unlocking posture;

the first driving assembly is connected with the rotating piece and configured to drive the rotating piece to rotate.

Further, the locking mechanism further includes:

the first elastic piece is connected with the rotating piece;

when the rotating piece is positioned at the locking posture, the first elastic piece stores a first elastic restoring force;

when the rotating piece is located at the unlocking posture, the first elastic piece releases the first elastic restoring force, and the rotating piece rotates for a preset angle under the action of the first elastic restoring force;

the first driving assembly is configured to provide a driving force in a direction opposite to the elastic restoring force.

Further, the first elastic member includes a torsion spring; and/or the presence of a gas in the gas,

the first drive member includes a motor.

Further, the locking assembly includes:

the locking pieces are distributed in parallel with the rotating piece;

and the second driving assembly is connected with the locking piece and is configured to drive the locking piece to be separated from the rotating piece.

Further, the locking assembly further comprises:

the second elastic piece is connected with the locking piece;

when the rotating piece is located at the unlocking posture, the second elastic piece stores a second elastic restoring force, and the locking piece is far away from the rotating piece under the action of the second elastic restoring force; or, when the rotating member is in the locking posture, the second elastic member stores a third elastic restoring force, and the locking member is in contact with the rotating member under the action of the third elastic restoring force; when the rotating piece is located at the unlocking posture, the second elastic piece releases a third elastic restoring force;

the second driving assembly is configured to provide a driving force in an opposite direction to the second elastic restoring force or the third elastic restoring force.

Further, the second elastic element comprises a compression spring or a tension spring; and/or the second drive assembly comprises a motor.

Further, the rotating member includes:

a first lever portion that contacts the locking assembly in the locking posture and is separated from the locking assembly in the unlocking posture;

and the second rod part is connected with the first rod part and is vertical to the first rod part.

Further, the rotating piece is L-shaped.

A steering system according to an embodiment of a second aspect of the present invention, the turning system includes:

a rotating shaft;

the rocker arm is connected with the rotating shaft;

the locking mechanism according to the embodiment of the first aspect, wherein a rotating member of the locking mechanism contacts the rocker arm in the locking posture to limit the rotation of the rocker arm relative to the rotating shaft; the rotating piece can rotate relative to the axis of the rotating shaft when in the unlocking posture.

A vehicle according to an embodiment of the third aspect of the invention, the vehicle comprising: the steering system according to the embodiment of the second aspect.

The technical scheme of the invention has the following beneficial effects:

in the locking mechanism provided by the embodiment of the invention, the first driving assembly is utilized to drive the rotating member to rotate, so that the rotating member can be switched between the locking posture and the unlocking posture, manual intervention is reduced, and time and energy are saved. During the locking state, rotate the piece and can prevent the rocking arm and rotate, and then realize the locking function. And, when the locking state, the locking subassembly can be through contacting with rotating the piece, the rotation of restriction rotation piece makes the rotation piece keep in the locking gesture, has improved the reliability of locking.

Drawings

FIG. 1 is a schematic view of a partial structure of a steering system;

FIG. 2 is a schematic structural diagram of a locking mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a locking mechanism in a locked position according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a locking mechanism in an unlocked position according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a stop mechanism when the unlocking posture is changed to the locking posture according to an embodiment of the present invention.

Reference numerals

A rotating member 110; a first lever portion 111; a second stem portion 112; a locking assembly 120; a lock member 121; a second drive assembly 122; the second elastic member 123; a first drive assembly 130; the first elastic member 140.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

The following first describes a lock mechanism according to an embodiment of the present invention in detail with reference to the drawings.

The locking mechanism includes: a rotation member 110, a locking assembly 120, and a first driving assembly 130.

Wherein the rotation piece 110 rotates between the locking posture and the unlocking posture; a locking assembly 120, wherein the locking assembly 120 contacts with the rotating member 110 in the locking posture to limit the rotation of the rotating member 110; the locking assembly 120 is separated from the rotation member 110 in the unlocking posture; the first driving assembly 130 is connected to the rotating member 110 and configured to drive the rotating member 110 to rotate.

The locking mechanism locks the rocker arm by the rotating member 110. As shown in fig. 2 to 5, in the locked position, not only the rotor 110 but also the locking unit 120 can lock the rotor 110, and the rotor 110 cannot rotate. Similarly, in the unlocking state, the locking assembly 120 and the rotating member 110 are unlocked, the rotating member 110 can rotate, and then the rotating member 110 can release the locking of the rocker arm and is far away from the rocker arm, so that the rotating member 110 and the rocker arm are unlocked, and the rocker arm can rotate.

Therefore, in the embodiment of the present invention, the first driving assembly 130 is used to drive the rotation member 110 to rotate, so that the rotation member 110 can be switched between the locking posture and the unlocking posture, which reduces manual intervention and is beneficial to saving time and energy. In the locked state, the rotating member 110 can prevent the rocker arm from rotating, thereby realizing the locking function. In addition, in the locked state, the locking assembly 120 can contact the rotating member 110 to limit the rotation of the rotating member 110, so that the rotating member 110 is maintained in the locked posture, thereby improving the reliability of the locking.

In some embodiments, the locking mechanism further comprises: a first elastic member 140, wherein the first elastic member 140 is connected to the rotation member 110; when the rotating member 110 is in the locking posture, the first elastic member 140 stores a first elastic restoring force; when the rotating member 110 is located at the unlocking posture, the first elastic member 140 releases the first elastic restoring force, and the rotating member 110 rotates by a preset angle under the action of the first elastic restoring force; the first driving assembly 130 is configured to provide a driving force in a direction opposite to the elastic restoring force.

The first elastic member 140 and the first driving assembly 130 cooperate to switch the rotation member 110 between the locking posture and the unlocking posture.

The rotation member 110 is automatically rotated in the first direction by the first elastic restoring force, and thus can be automatically changed from the locking posture to the unlocking posture. At this time, the driving force provided by the first driving assembly 130 is used to make the first elastic element 140 generate an elastic restoring force, so that the rotating element 110 rotates in the second direction, and the rotating element 110 is switched from the unlocking posture to the locking posture. Wherein the second direction is opposite to the first direction.

For example: the first direction is counterclockwise and the second direction is clockwise. When the rotating member 110 rotates clockwise, the unlocking posture is switched to the locking posture, that is, the posture of fig. 3 is switched to the posture of fig. 2. In fig. 2 to 5, a dotted arrow indicates a rotation method of the rotation member 110. When the rotating member 110 rotates counterclockwise, the locking posture is switched to the unlocking posture, that is, the posture of fig. 2 is switched to the posture of fig. 3.

In some embodiments, the first elastic member 140 includes a torsion spring; and/or the first drive member comprises a motor.

Besides the spring, the first elastic component can also be a metal elastic sheet.

In some embodiments, the first elastic element 140 can be eliminated, and the rotation of the rotation element 110 in two directions can be realized by means of the first driving assembly 130. For example: the first driving assembly 130 is a motor, and the rotation of the rotating member 110 in the first direction is realized by the forward rotation of the motor, and the rotation of the rotating member 110 in the second direction is realized by the reverse rotation of the motor.

In some embodiments, the locking assembly 120 includes: a latch 121 and a second drive assembly 122. Wherein, the locking member 121 and the rotating member 110 are distributed in parallel; the second driving assembly 122 is connected to the locking member 121 and configured to drive the locking member 121 to separate from the rotating member 110.

As shown in fig. 2 to 5, in the locked position, the locking assembly 120 contacts the rotating member 110 with respect to the rotating member 110 to limit the rotation of the rotating member 110; in the unlocked state, the locking assembly 120 separates the rotating member 110 from the rotating member 110 to unlock the rotating member 110, so that the rotating member 110 can rotate.

In the locking assembly 120, the locking member 121 can lock or unlock the rotating member 110 via the second driving assembly 122. For example: the second driving assembly 122 can drive the locking member 121 to move along the third direction, so that the locking member 121 contacts with the rotating member 110; the second driving unit 122 can drive the locking member 121 to move in the fourth direction, so that the locking member 121 is separated from the rotation member 110; wherein the fourth direction is opposite to the third direction. The linear arrows in fig. 3 to 5 indicate the moving direction of the lock member 121.

In some embodiments, the locking assembly 120 further comprises: a second elastic member 123, wherein the second elastic member 123 is connected with the locking member 121; when the rotating member 110 is located at the unlocking posture, the second elastic member 123 stores a second elastic restoring force, and the locking member 121 is away from the rotating member 110 under the action of the second elastic restoring force; or, when the rotating member 110 is located in the locking posture, the second elastic member 123 stores a third elastic restoring force, and the locking member 121 contacts with the rotating member 110 under the action of the third elastic restoring force; when the rotating member 110 is located at the unlocking posture, the second elastic member 123 releases a third elastic restoring force; wherein the second driving assembly 122 is configured to provide a driving force in a direction opposite to the second elastic restoring force or the third elastic restoring force.

The movement of the locking member 121 can also be realized by the cooperation of the second elastic member 123 and the second driving assembly 122.

In some embodiments, the second elastic member 123 includes a compression spring or a tension spring; and/or, the second drive assembly 122 comprises a motor.

As shown in fig. 2 to 5, the second elastic member 123 is a compression spring, for example, and as shown in fig. 2, in the locked position, the lock member 121 abuts against the rotor 110 by the elastic force of the compression spring, and the rotor 110 is held in the locked position and is unable to rotate. When the lock is unlocked, the second elastic element 123 stores a second elastic restoring force under the action of the second driving assembly 122, that is, the second elastic element 123 is compressed, the second elastic element 123 drives the locking element 121 to move away from the rotating element 110, and the rotating element 110 can rotate.

In some embodiments, the rotation member 110 includes: a first lever portion 111 and a second lever portion 112 which are in contact with the locking assembly 120 in the locking posture and are separated from the locking assembly 120 in the unlocking posture; the second rod part 112 is connected to the first rod part 111 and perpendicular to the first rod part 111.

In the locked position, the locking assembly 120 is aligned with the second lever portion 112, as shown in fig. 2-5.

The first lever portion 111 serves as a latch portion for enabling latching of the rocker arm, and the second lever portion 112 contacts the latch assembly 120 for maintaining a latch posture by contacting the latch assembly 120.

Without limitation, the rotating member 110 is L-shaped.

As shown in fig. 2 to 5, the first rod portion 111 has a length greater than that of the second rod portion 112,

the L-shaped rotating member 110 is compact and simple in structure, and contributes to cost saving.

In one specific example, the initial centering lock-up state: as shown in fig. 3, the first motor (i.e., the first driving assembly 130) and the second motor (i.e., the second driving assembly 122) do not operate, and the spring (i.e., the second elastic member 123) provides a pushing force for the limit pin (i.e., the locking member 121), so that the limit pin abuts against the centering and locking pin (i.e., the rotating member 110) to achieve centering and locking. Releasing the locking state: as shown in fig. 4, the second motor rotates to overcome the spring force, so that the centering pin is released, and the centering pin is twisted by the torsion of the torsion spring (i.e., the first elastic element 140), thereby releasing the locking state. Centering and locking again: the second motor rotates to overcome the spring force to loosen the limiting pin, then the first motor rotates to overcome the torsion of the torsion spring to rotate the centering locking pin to realize the limiting of the long end, and then the second motor is disconnected and the limiting pin is pushed by the spring to limit. And once the motor is disconnected. And automatic centering and locking are realized again. In the locking mechanism in this example, centering locking round pin long end can centering locking steering rocker, and centering locking round pin can be followed locking round pin pivot and rotated, and the torsional spring can provide a rotatory torsion for centering locking round pin, and the motor one can provide a rotatory torsion with torsional spring torsion reversal for centering locking round pin. The spacer pin can support the short end of the centering locking pin, the centering locking pin is limited to rotate, the spring can provide thrust for the spacer pin, the spacer pin is made to support the centering locking pin to be immobile, the motor II can provide reverse thrust for the spacer pin, and the spring is compressed to enable the spacer pin to loosen the centering locking pin.

An embodiment of the present invention further provides a steering system, where the steering system includes: pivot, rocking arm and the locking mechanism of any preceding embodiment.

Wherein, the rocker arm is connected with the rotating shaft; the rotating member 110 of the locking mechanism contacts with the rocker arm in the locking posture to limit the rotation of the rocker arm relative to the rotating shaft; the rotating member 110 can rotate relative to the axis of the rotating shaft in the unlocking posture.

Since the locking mechanism according to the above-described embodiment of the present invention has the above-described technical effects, the vehicle according to the embodiment of the present invention also has a corresponding technical effect that the rotation member 110 is driven to rotate by the first driving assembly 130, so that the rotation member 110 can be switched between the locked posture and the unlocked posture, which reduces manual intervention and is advantageous in saving time and effort. In the locked state, the rotating member 110 can prevent the rocker arm from rotating, thereby realizing the locking function. In addition, in the locked state, the locking assembly 120 can contact the rotating member 110 to limit the rotation of the rotating member 110, so that the rotating member 110 is maintained in the locked posture, thereby improving the reliability of the locking.

The embodiment of the invention also provides a vehicle which comprises the steering system in any one of the embodiments.

The vehicle in the embodiment of the invention includes, but is not limited to, a vehicle, an electric vehicle or a balance car and other transportation tools.

Since the steering system according to the above-described embodiment of the present invention has the above-described technical effects, the vehicle according to the embodiment of the present invention also has a corresponding technical effect that the rotation member 110 is driven to rotate by the first drive assembly 130, so that the rotation member 110 can be switched between the locked posture and the unlocked posture, in such a manner that manual intervention is reduced, which is advantageous in saving time and effort. In the locked state, the rotating member 110 can prevent the rocker arm from rotating, thereby realizing the locking function. In addition, in the locked state, the locking assembly 120 can contact the rotating member 110 to limit the rotation of the rotating member 110, so that the rotating member 110 is maintained in the locked posture, thereby improving the reliability of the locking.

Other structures and operations of the vehicle according to the embodiment of the present invention will be understood and readily implemented by those skilled in the art, and thus will not be described in detail.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.