WO2020199607A1

WO2020199607A1 - Traveling device

Info

Publication number: WO2020199607A1
Application number: PCT/CN2019/119711
Authority: WO
Inventors: 奚卫宁; 郝旭昶; 薛超
Original assignee: 纳恩博（北京）科技有限公司
Priority date: 2019-03-29
Filing date: 2019-11-20
Publication date: 2020-10-08
Also published as: CN111746702B; CN111746702A

Abstract

A steering mechanism and a scooter having same. The steering mechanism comprises a mounting base (10), a swinging member (20), a first steering wheel assembly (30), a second steering wheel assembly (40), and an operation part (50), wherein the middle of the swinging member (20) is rotatably connected to the mounting base (10); the first steering wheel assembly (30) is pivotally connected to a first end of the swinging member (20); the second steering wheel assembly (40) is pivotally connected to a second end of the swinging member (20); the operation part (50) is rotatably connected to the mounting base (10); and the operation part (50) is respectively connected to the first steering wheel assembly (30) and the second steering wheel assembly (40) by means of an omnidirectional joint assembly (60).

Description

Driving equipment

Cross references to related applications

This application is filed based on the Chinese patent application with the application number 201910252328.5 and claims the priority of the Chinese patent application. The content of the Chinese patent application is hereby incorporated into this application by way of introduction.

Technical field

This application relates to the technical field of transportation equipment, and specifically to a steering mechanism and a scooter with the steering mechanism.

Background technique

In the prior art, in order to reduce bumps when the scooter passes on an uneven road surface, a floating mechanism is added to the front wheel, and the running wheel is connected with the floating mechanism, so that the scooter can adapt to the uneven road surface.

However, the prior art floating mechanism is provided with a plurality of structural members, and the two wheels of the scooter are adapted to the uneven road surface through the plurality of structural members, and the structure is complicated.

Summary of the invention

The main purpose of the present application is to provide a steering mechanism and a scooter with the steering mechanism to solve the problems in the prior art that the steering mechanism is difficult to steer and the handlebars are easily twisted severely when one side of the front wheel encounters obstacles, thereby causing potential safety hazards.

In order to achieve the above objective, according to one aspect of the present application, a steering mechanism is provided, including: a mounting base; a swinging member, the middle of the swinging member is rotatably connected with the mounting base; a first steering wheel assembly, a first steering wheel The assembly is pivotally connected to the first end of the swing member; the second steering wheel assembly, the second steering wheel assembly is pivotally connected to the second end of the swing member; the operating part, the operating part is rotatably connected with the mounting base, and the operating part The input section of the universal joint assembly is connected, and the output section of the universal joint assembly is respectively connected with the first steering wheel assembly and the second steering wheel assembly to drive the first steering wheel assembly to rotate around the corresponding pivot axis through the rotating operation part , And the operating part drives the second steering wheel assembly to rotate around the corresponding pivot axis.

Further, the rotation center point of the universal joint assembly is located on the axis of the pivot shaft between the swing member and the mounting base.

Further, the output section is respectively rotatably connected with the first steering wheel assembly and the second steering wheel assembly;

The output section can rotate with the rotation of the input section, the output section can rotate with a first axis relative to the input section; the output section can rotate with a second axis relative to the input section; so The second axis and the first axis are perpendicular to each other;

The swing member can rotate with a third axis relative to the mounting base, and the third axis and the first axis coincide when the steering mechanism is in a state where the steering mechanism is traveling downward;

The operating part is capable of rotating with respect to the mounting base on a fourth axis; the fourth axis and the second axis are perpendicular to each other, and the fourth axis and the first axis are perpendicular to each other;

Wherein, the fourth axis, the third axis, the first axis and the second axis intersect at the center of rotation of the universal joint assembly.

Further, the steering mechanism further includes: a first connecting piece, the first end of the first connecting piece is rotatably connected with the output section of the universal joint assembly, and the second end of the first connecting piece is rotatably connected with the first steering wheel assembly Movably connected; a second connecting piece, the first end of the second connecting piece is rotatably connected with the output section of the universal joint assembly, and the second end of the second connecting piece is movably connected with the second steering wheel assembly connection.

Further, the transition section of the universal joint assembly is rotatably connected with the input section; the transition section can rotate with respect to the input section on a first axis; the transition section and the output section can be Rotatably connected, the output section can rotate with a second axis relative to the transition section; the first axis and the second axis are perpendicular to each other;

The output section is a half-ring sheet structure, the two ends of the half-ring sheet structure are respectively rotatably connected with the two ends of the transition section, and the middle part of the half-ring sheet structure is respectively connected with the first The second end of a connecting piece is rotatably connected with the second end of the second connecting piece.

Further, an included angle is formed between the axis of the first connecting member and the axis of the second connecting member, and the included angle is an obtuse angle.

Further, a protrusion is formed in the middle of the half-ring sheet structure, and the protrusion faces a side of the transition section of the universal joint assembly with a groove, and the output section passes through the protrusion of the groove. Are respectively rotatably connected with the second end of the first connecting piece and the second end of the second connecting piece; or,

A first connecting hole is opened in the middle of the half-ring sheet structure, the second end of the first connecting piece has a second connecting hole, and the second end of the second connecting piece has a third connecting hole; the steering mechanism further includes a connecting hole. Shaft, the connecting shaft passes through the first connecting hole, the second connecting hole and the third connecting hole in sequence.

Further, the first steering wheel assembly includes a first steering wheel and a third connecting member. The first steering wheel is rotatably connected with the third connecting member, and the first end of the third connecting member is pivoted with the first end of the swinging member. The second end of the third connecting piece is pivotally connected to the first end of the first connecting piece; the second steering wheel assembly includes a second steering wheel and a fourth connecting piece. The second steering wheel is rotatably connected to the fourth connecting piece. The connecting piece is connected, the first end of the fourth connecting piece is pivotally connected with the second end of the swinging piece, and the second end of the fourth connecting piece is pivotally connected with the first end of the second connecting piece.

Further, the mounting base is provided with a mounting hole, the operating part includes an operating shaft and a handle, the operating shaft is rotatably inserted in the mounting hole, the handle is connected to the first end of the operating shaft, and the second end of the operating shaft is connected to the The input section of the universal joint assembly is connected.

Further, the second end of the operating shaft and the input section of the universal joint assembly are integrally formed or detachably connected.

According to another aspect of the present application, there is provided a scooter including a steering structure, the steering structure being the above-mentioned steering structure.

Further, the scooter further includes: a skateboard, which is connected to the mounting base; and a support wheel, which is arranged at a predetermined distance from the mounting base.

Applying the technical solution of the present application, by rotatably connecting the swinging member with the mounting base, the first steering wheel assembly and the second steering wheel assembly can be swung within a certain range of angles according to different road conditions through a structural member of the swinging member , In order to make the steering mechanism adapt to uneven roads, the structure is simple; at the same time, the first steering wheel assembly and the second steering wheel assembly are respectively pivotally connected to the two ends of the swing member, and the middle part of the swing member and the mounting base are rotatably connected. The operating part is connected with the first steering wheel assembly and the second steering wheel assembly through the universal joint assembly, and the operating part is operated to drive the first steering wheel assembly and the second steering wheel assembly through the universal joint assembly. Turn to complete the steering operation, reduce the steering resistance, and enable the first steering wheel assembly and the second steering wheel assembly to still complete the steering function during the floating process through the swing member, so that when the unilateral steering wheel assembly encounters obstacles The handlebar will not be subject to severe interference, which improves the user experience and actual safety performance.

Description of the drawings

The drawings of the specification forming a part of the application are used to provide a further understanding of the application, and the exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

Fig. 1 shows a schematic structural view of an embodiment of a scooter according to the present application from a first perspective;

Fig. 2 shows a schematic structural view of a second view of the embodiment of the scooter according to the present application;

Figure 3 shows a schematic diagram of an exploded structure of an embodiment of the scooter according to the present application;

Fig. 4 shows an exploded structure diagram of an embodiment of a steering mechanism of a scooter according to the present application;

Figure 5 shows a schematic structural diagram of the first embodiment of the steering mechanism of the scooter according to the present application;

Figure 6 shows a schematic structural view of the second embodiment of the steering mechanism of the scooter according to the present application;

Fig. 7 shows an exploded structure diagram of an embodiment of a steering mechanism of a scooter according to the present application.

Among them, the above drawings include the following reference signs:

10. Install the base body;

20. Swing parts;

30. The first steering wheel assembly; 31. The first steering wheel; 32. The third connecting piece;

40. The second steering wheel assembly; 41. The second steering wheel; 42, the fourth connecting piece;

50. Operation department;

60. Universal joint assembly; 61. Input section; 611. Accommodating through slot; 62. Output section; 63. Transition section; 631. Blind hole; 64. First fixed shaft; 65. Second fixed shaft; 66. Connecting shaft

70. The first connecting piece;

80. The second connecting piece;

90. Support wheel;

100. Skateboard.

detailed description

It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with embodiments.

As shown in Figs. 1 to 6, according to an embodiment of the present application, a scooter is provided.

Specifically, as shown in FIG. 6, the steering mechanism includes a mounting base 10, a swinging member 20, a first steering wheel assembly 30, a second steering wheel assembly 40, and an operating portion 50. The middle of the swinging member 20 and the mounting base 10 are rotatable The first steering wheel assembly 30 is pivotally connected to the first end of the swing member 20, the second steering wheel assembly 40 is pivotally connected to the second end of the swing member 20, and the operating portion 50 is rotatably connected to the mounting base 10 The operating portion 50 is connected to the input section 61 of the universal joint assembly 60, and the output section 62 of the universal joint assembly 60 is respectively connected to the first steering wheel assembly 30 and the second steering wheel assembly 40 to pass The rotating operating portion 50 drives the first steering wheel assembly 30 to rotate around the corresponding pivot axis, and causes the operating portion 50 to drive the second steering wheel assembly 40 to rotate around the corresponding pivot axis. By rotatably connecting the swing member 20 with the mounting base 10, the first steering wheel assembly 30 and the second steering wheel assembly 40 can swing within a certain angle range according to different road conditions, so as to improve the obstacle crossing performance of the steering mechanism. Moreover, the steering operation can still be completed during the swinging process of the first steering wheel assembly 30 and the second steering wheel assembly 40. Different road conditions such as flat roads, gravel roads, dirt roads, etc., the road surface can be in a smooth or different undulating state.

In this embodiment, the first steering wheel assembly 30 and the second steering wheel assembly 40 are respectively pivotally connected to both ends of the swing member 20, and the middle part of the swing member 20 is rotatably connected to the mounting base 10, and The operating portion 50 is connected to the first steering wheel assembly 30 and the second steering wheel assembly 40 through the universal joint assembly 60, and the operating portion 50 is operated to drive the first steering wheel assembly 30 and the second steering wheel assembly 30 through the universal joint assembly 60. The wheel assembly 40 rotates separately to complete the steering operation, which reduces the steering resistance, and enables the first steering wheel assembly 30 and the second steering wheel assembly 40 to perform the steering function during the floating process through the swing member 20, so that one side When the steering wheel assembly encounters obstacles, the handlebar will not be severely interfered, which improves the user experience and actual safety performance.

As shown in FIGS. 4 and 5, the center of rotation of the universal joint assembly 60 is located on the axis of the pivot shaft between the swing member 20 and the mounting base 10. Among them, the universal joint assembly 60 has an output section 62 and an input section 61. The output section 62 and the input section 61 rotate around a preset point. The preset point is the rotation center point of the universal joint assembly 60. This arrangement is convenient for the universal joint. The output section 62 of the assembly 60 and the swing angle of the swing member 20 are consistent, so as to improve the stability of the universal joint assembly 60, reduce the steering resistance, and improve the user experience. As an example, the universal joint assembly 60 is a cross-axis universal joint.

As shown in Figures 3 and 4, the input section 61 of the universal joint assembly 60 is connected to the operating portion 50, and the steering mechanism further includes a first connecting piece 70 and a second connecting piece 80. The first end of the first connecting piece 70 It is rotatably connected with the output section 62 of the universal joint assembly 60, the second end of the first connecting piece 70 is movably connected with the first steering wheel assembly 30, and the first end of the second connecting piece 80 is movably connected with the universal joint assembly 60. The output section 62 of the joint assembly 60 is rotatably connected, and the second end of the second connecting member 80 is movably connected with the second steering wheel assembly 40. The input section 61 is driven to rotate by the rotating operation part 50, and then the output section 62 is driven to swing around the rotation center point of the universal joint assembly 60, so as to actuate the first connecting member 70 and the second connecting member 80 to drive the first steering wheel The assembly 30 and the second steering wheel assembly 40 rotate respectively, which reduces the steering resistance of the steering mechanism and improves the user experience. Wherein, the input section 61 of the universal joint assembly 60 and the output section 62 of the universal joint assembly 60 are connected to each other through a cross shaft, and rotating the input section 61 can drive the output section 62 to swing. The intersection of the axes of the two shafts of the cross shaft is the center of rotation.

As shown in Figures 4 to 6, the output section 62 of the universal joint assembly 60 is a half-ring sheet structure, and the two ends of the half-ring sheet structure are respectively rotatably connected to both ends of the transition section 63 of the universal joint assembly 60. Connected, the middle part of the half-ring sheet structure forms a protrusion, and the protrusion faces the side of the transition section 63 of the universal joint assembly 60 to open a groove, and the output section 62 is connected to the first connecting member 70 through the protrusion grooves. The second end of the second connecting member 80 is rotatably connected with the second end; of course, the output section 62 of the universal joint assembly 60 can also be provided with a first connecting hole, and the second end of the first connecting member 70 has a Two connecting holes, the second end of the second connecting member 80 has a third connecting hole, wherein the axis of the first connecting hole, the axis of the second connecting hole and the axis of the third connecting hole are coaxial. The steering mechanism further includes a connecting shaft, which passes through the first connecting hole, the second connecting hole, and the third connecting hole in order to swing the output section 62 to drive the first connecting member 70 and the second connecting member 80 to move. The first steering wheel assembly 30 and the second steering wheel assembly 40 rotate respectively, which reduces the steering resistance of the steering mechanism and improves the user experience.

As shown in FIGS. 4 and 6, the axis of the first connecting member 70 and the axis of the second connecting member 80 form an included angle, and the included angle is an obtuse angle. This arrangement facilitates that when the output section 62 of the universal joint assembly 60 swings left and right, the first steering wheel assembly 30 and the second steering wheel assembly 40 are driven to steer separately, shorten the moment arm, and improve the safety and stability of the steering mechanism.

4, the universal joint assembly 60 includes a transition section 63, the transition section 63 and the input section 61 are rotatably connected along the first axis of the transition section 63, the transition section 63 and the output section 62 along the first axis of the transition section 63 The two axes are rotatably connected, and the first axis and the second axis are angularly arranged. As an example, the first axis and the second axis are perpendicular to each other. This arrangement is convenient for the input section 61 to drive the output section 62 to move through the transition section 63, wherein the intersection of the first axis and the second axis is the rotation center point of the universal joint assembly 60.

As shown in Figures 1 and 6, the first steering wheel assembly 30 includes a first steering wheel 31 and a third connecting member 32. The first steering wheel 31 is rotatably connected with the third connecting member 32. The third connecting member 32 The first end of the oscillating member 20 is pivotally connected to the first end, the second end of the third connecting member 32 is pivotally connected to the first end of the first connecting member 70; the second steering wheel assembly 40 includes a second steering wheel 41 and the fourth connecting member 42, the second steering wheel 41 is rotatably connected with the fourth connecting member 42, the first end of the fourth connecting member 42 is pivotally connected to the second end of the swing member 20, the fourth connecting member The second end of 42 is pivotally connected to the first end of the second connecting member 80. Under the action of the output section 62 of the universal joint assembly 60 rotating around the center point of the universal joint assembly 60, the first connecting piece 70 and the second connecting piece 80 can pass through the first connecting piece 70 and the second connecting piece 80 respectively. The three connecting pieces 32 and the fourth connecting piece 42 drive the first steering wheel 31 to turn independently and the second steering wheel 41 to turn independently.

In this embodiment, the mounting base 10 is provided with a mounting hole, the operating part 50 includes an operating shaft and a handle, the operating shaft rotatably penetrates the mounting hole, the handle is connected to the first end of the operating shaft, the operating shaft The second end of is connected with the input section 61 of the universal joint assembly 60. This arrangement facilitates the user to drive the operating shaft to rotate by operating the handlebar, so that the universal joint assembly 60 connected with the operating shaft drives the first steering wheel assembly 30 and the second steering wheel assembly 40 to steer separately.

In this embodiment, the second end of the operating shaft is integrally formed with the input section 61 of the universal joint assembly 60 to facilitate the improvement of product stability. The second end of the operating shaft is integrated with the input section 61 of the universal joint assembly 60. 61 is detachably connected to facilitate production and reduce processing costs.

As shown in Figures 1 to 3, the guiding mechanism of the above embodiment can also be used in the technical field of scooter equipment, that is, according to another aspect of the present application, a scooter is provided, which includes a steering structure, and a steering structure It is the steering structure of the above embodiment.

As shown in FIGS. 1 to 3, the scooter further includes a skateboard 100 and a support wheel 90. The skateboard 100 is connected to the mounting base 10, and the support wheel 90 and the mounting base 10 are arranged at a predetermined distance. This arrangement facilitates the formation of a stable inverted triangle structure with two guide wheels and one support wheel 90, which improves the stability of the vehicle.

In this embodiment, the output section 62 can rotate as the input section 61 rotates. When the operating part 50 rotates, the input section 61 and the operating part 50 rotate around the center of rotation of the universal joint assembly 60. At this time, the output section 62 rotates as the input section 61 rotates, and the first steering wheel assembly 30 and The second steering wheel assembly 40 rotates with the rotation of the output section 62, so that the first steering wheel assembly 30 is driven to rotate around the corresponding pivot axis through the turning operation portion 50, and the second steering wheel assembly 40 is driven around the corresponding pivot axis through the turning operation portion 50 The pivot axis rotates.

Here, the operating portion 50 can rotate with respect to the mounting base 10 on a fourth axis; the fourth axis passes through the rotation center point of the universal joint assembly 60.

In this embodiment, the output section 62 can rotate about the first axis relative to the input section 61; the swing member 20 can rotate about the third axis relative to the mounting base 10, and the steering mechanism is in a state of straight running, the third axis and The first axis coincides, when the steering mechanism is in a turning state, an angle is formed between the third axis and the first axis; when the steering mechanism is in a state of driving, and the first steering wheel assembly 30 and the second steering wheel assembly When 40 is in an uneven road condition, the swing member 20 rotates on the third axis relative to the mounting base 10 to allow the first steering wheel assembly 30 and the second steering wheel assembly 40 to swing left and right so as to adapt to uneven road conditions and reduce the bumps of the steering mechanism; At the same time, the output section 62 is adapted to rotate with the first steering wheel assembly 30 and the second steering wheel assembly 40 along the first axis relative to the input section 61, so as to avoid uneven road conditions, the first steering wheel assembly 30 and The second steering wheel assembly 40 is stuck.

In this embodiment, the output section 62 may be rotatably connected with the first steering wheel assembly 30 and the second steering wheel assembly 40, that is, the output section 62 may be rotatably connected with the first steering wheel assembly 30 , The output section 62 can be rotatably connected with the second steering wheel assembly 40, so that the output section 62 can drive the first steering wheel assembly 30 and the second steering wheel assembly 30 and the second steering wheel assembly when the operating part 50 drives the output section 62 to rotate through the input section 61 The wheel assembly 40 rotates to realize the steering of the steering mechanism.

Here, the output section 62 can rotate with a second axis relative to the input section 61; the second axis and the first axis can be perpendicular to each other; when the steering mechanism is running, and the first steering wheel assembly 30 and the second steering wheel assembly 40 are in uneven road conditions When the swing member 20 rotates on the third axis relative to the mounting base 10, the first steering wheel assembly 30 and the second steering wheel assembly 40 can swing left and right to adapt to uneven road conditions; at the same time, the output section 62 is adaptable to the input section 61 The ground rotates on the first axis as the first steering wheel assembly 30 and the second steering wheel assembly 40 swing from side to side, so as to avoid the first steering wheel assembly 30 and the second steering wheel assembly 40 from getting stuck when the road conditions are uneven; The section 62 adaptively swings to the left and right with the first steering wheel assembly 30 and the second steering wheel assembly 40 and rotates on the second axis relative to the input section 61 to ensure the pivot of the first steering wheel assembly 30 relative to the swing member 20. The pivot axis, the pivot axis of the first steering wheel assembly 30 relative to the output section 62, the pivot axis of the second steering wheel assembly 40 relative to the swing member 20, and the pivot axis of the second steering wheel assembly 40 relative to the output section 62, are generally Parallel, when the operating portion 50 rotates on the fourth axis relative to the mounting base 10, the first steering wheel assembly 30 and the second steering wheel assembly 40 can swing left and right with the swing member 20, and can smoothly follow the output section 62 turns to achieve steering.

It should be noted that the fourth axis, the third axis, the first axis and the second axis may intersect at the center of rotation of the universal joint assembly 60; in order to reduce the steering resistance of the steering mechanism when running on uneven roads. Here, the fourth axis and the first axis may be perpendicular to each other, and the fourth axis and the second axis may be perpendicular to each other, so as to further reduce the rotation resistance of the steering of the operating part 50.

In the embodiment of the present application, the first end of the swing member 20 is pivotally connected to the first steering wheel assembly 30 at the first position; the output section 62 is pivotally connected to the first steering wheel assembly 30 at the second position; The first position is different from the second position, so that the first steering wheel assembly 30 rotates under the joint action of the swing member 20 and the output section 62. For example, the first position is a position corresponding to the center of the first steering wheel 31 of the first steering wheel assembly 30, and the second position is a position with a certain distance from the first position, that is, the first position is close to the first steering wheel. The second position is close to the edge of the first steering wheel 31, so that the middle of the first steering wheel 31 is supported by the swing member 20, and the edge of the first steering wheel 31 is pushed or pulled by the output section 62 to make the first steering wheel 31 31 rotation.

The second end of the swing member 20 is pivotally connected to the second steering wheel assembly 40 at the third position; the output section 62 is pivotally connected to the second steering wheel assembly 40 at the fourth position; wherein the third position and the fourth position are different , So that the second steering wheel assembly 40 rotates under the joint action of the swing member 20 and the output section 62. For example, the third position is a position corresponding to the center of the second steering wheel 41 of the second steering wheel assembly 40, and the fourth position is a position with a certain distance from the third position, that is, the third position is close to the second steering wheel. The center of 41, the fourth position is close to the edge of the second steering wheel 41, so that the middle of the second steering wheel 41 is supported by the swing member 20, and the edge of the second steering wheel 41 is pushed or pulled by the output section 62 to make the second steering wheel 41 rotation.

In the embodiment of the present application, the implementation manner in which the output section 62 is respectively rotatably connected with the first steering wheel assembly 30 and the second steering wheel assembly 40 is not limited.

For example, the steering mechanism may further include: a first connecting piece 70 and a second connecting piece 80; the first end of the first connecting piece 70 is rotatably connected with the output section 62, and the second end of the first connecting piece 70 is rotatably connected with the output section 62. A steering wheel assembly 30 is movably connected; the first end of the second connecting piece 80 is rotatably connected with the output section 62, and the second end of the second connecting piece 80 is movably connected with the second steering wheel assembly 40 connection.

Here, the structure of the first connecting member 70 and the second connecting member 80 is not limited. For example, as shown in FIG. 4, the first connecting member 70 and the second connecting member 80 may both be rod-shaped structures.

Here, the second end of the first connecting member 70 is movably connected with the first steering wheel assembly 30, and the second end of the first connecting member 70 is rotatably connected with the first steering wheel assembly 30, or it may be The second end of the first connecting member 70 is connected to the first steering wheel assembly 30 through a spherical surface.

Here, the second end of the second connecting member 80 is movably connected with the second steering wheel assembly 40, and the second end of the second connecting member 80 is rotatably connected with the second steering wheel assembly 40, or it may be The second end of the second connecting member 80 and the second steering wheel assembly 40 are connected by a spherical surface.

Here, an included angle is formed between the first connecting member 70 and the second connecting member 80, and the included angle may be an obtuse angle.

In the embodiment of the present application, the structure of the universal joint assembly 60 is not limited. For example, the universal joint assembly 60 may be a cross-shaft universal joint; in this case, one shaft of the cross-shaft universal joint serves as the input section 61, and the other shaft of the cross-shaft universal joint serves as the output section 62.

Example 1, as shown in FIGS. 4 and 7, the universal joint assembly 60 includes an input section 61, an output section 62 and a transition section 63. The transition section 63 of the universal joint assembly 60 is rotatably connected with the input section 61; the transition section 63 can rotate with respect to the input section 61 on a first axis; the transition section 63 is rotatably connected with the output section 62, and the output section 62 Relative to the transition section 63, it can rotate on a second axis; the first axis and the second axis can be perpendicular to each other.

In example 1, as shown in FIGS. 4 and 7, the bottom of the input section 61 has a receiving through groove 611, and the transition section 63 is located in the receiving through groove 611, forming two opposite walls and the transition section of the receiving through groove 611 63 adjacent to each other, the two ends of the first fixed shaft 64 are respectively fixed on the two opposite walls forming the receiving through groove 611, the transition section 63 is sleeved on the outside of the first fixed shaft 64, and the transition section 63 is opposite to the first fixed shaft 64. A fixed shaft 64 can move, and the transition section 63 is rotatably connected with the input section 61 through the first fixed shaft 64; at this time, when the input section 61 rotates, the two opposite walls forming the receiving through groove 611 will have the transition section 63 When rotating, the transition section 63 drives the output section 62 to rotate;

In example one, the transition section 63 has two blind holes 631 on both sides exposed through the accommodating slot 611, and the first ends of the two second fixed shafts 65 are respectively fixed in the two blind holes 631, and the output section 62 The two ends are respectively sleeved on the outside of the second ends of the two second fixed shafts 65, the output section 62 is rotatable relative to the two second fixed shafts 65, and the output section 62 is rotatable through the second fixed shaft 65 and the transition section 63地连接。 Ground connection.

Of course, those skilled in the art can also implement the structure of the universal joint assembly 60 in other ways, as long as the output section 62 can rotate with the rotation of the input section 61, and the output section 62 can rotate with respect to the input section 61 along the first axis; The section 62 can rotate with respect to the input section 61 along the second axis.

In the embodiment of the present application, the structure of the output section 62 is not limited. For example, the output section 62 may be a half-ring sheet structure, the two ends of the half-ring sheet structure are respectively rotatably connected with the two ends of the input section 61; the middle part of the half-ring sheet structure is respectively connected with the first steering wheel assembly 30 It is rotatably connected with the second steering wheel assembly 40.

Here, when the universal joint assembly 60 includes the transition section 63, the two ends of the half-ring sheet structure are respectively rotatably connected with the two ends of the transition section 63.

Here, when the steering mechanism includes the first connecting piece 70 and the second connecting piece 80, the middle of the half-ring sheet structure is rotatably connected with the second end of the first connecting piece 70 and the second end of the second connecting piece 80, respectively. Phase connection.

Here, the implementation manner of rotatably connecting the middle part of the half-ring sheet structure with the first steering wheel assembly 30 and the second steering wheel assembly 40 is not limited.

For example, a protrusion is formed in the middle of the half-ring sheet structure, and a groove is formed on the side of the transition section 63 of the universal joint assembly 60. The half-ring sheet structure is connected to the first steering wheel assembly 30 and the first steering wheel assembly through the grooves. The two steering wheel assemblies 40 are rotatably connected. As an example, the half-ring sheet structure is rotatably connected with the second end of the first connecting member 70 and the second end of the second connecting member 80 through grooves; here, as shown in FIG. 7, the steering mechanism It may include: a connecting shaft 66; the second end of the first connecting piece 70 has a second connecting hole, and the second end of the second connecting piece 80 has a third connecting hole; the connecting shaft 66 passes through the groove, the second connecting hole, and The third connection hole.

For another example, the middle of the output section 62 of the universal joint assembly 60 may also have a first connecting hole, the second end of the first connecting piece 70 has a second connecting hole, and the second end of the second connecting piece 80 has a third connecting hole. A hole, wherein the axis of the first connecting hole, the axis of the second connecting hole and the axis of the third connecting hole are coaxial. The steering mechanism may further include a connecting shaft 66, which passes through the first connecting hole, the second connecting hole and the third connecting hole in sequence. The half-ring sheet structure is connected to the first connecting member 70 and the second connecting member 70 and the second connecting hole respectively through the first connecting hole. The connecting member 80 is rotatably connected, so that the output section 62 swings to drive the first connecting member 70 and the second connecting member 80 to move, so that the first steering wheel assembly 30 and the second steering wheel assembly 40 are rotated respectively, which reduces The steering resistance of the steering mechanism improves the user experience.

Of course, the second end of the first connecting member 70 and the second end of the second connecting member 80 may also be rotatably connected to different positions of the middle of the output section 62 respectively.

It should be noted that the two structural members rotatably connected and the pivotal connection of the two structural members in this application refer to the connection of the two structural members, and one structural member of the two structural members is relative to the other structural member. Pieces can rotate.

The above descriptions are only optional embodiments of the application, and are not used to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A steering mechanism, characterized in that it comprises:

Installation base (10);

A swinging piece (20), the middle of the swinging piece (20) is rotatably connected with the mounting base (10);

A first steering wheel assembly (30), the first steering wheel assembly (30) is pivotally connected to the first end of the swing member (20);

A second steering wheel assembly (40), the second steering wheel assembly (40) is pivotally connected to the second end of the swing member (20);

The operating portion (50), the operating portion (50) is rotatably connected with the mounting base (10), and the operating portion (50) is connected with the input section (61) of the universal joint assembly (60) , The output section (62) of the universal joint assembly (60) is respectively connected with the first steering wheel assembly (30) and the second steering wheel assembly (40) to rotate the operating portion ( 50) Drive the first steering wheel assembly (30) to rotate around the corresponding pivot axis, and make the operating portion (50) drive the second steering wheel assembly (40) to rotate around the corresponding pivot axis.
The steering mechanism according to claim 1, wherein the center of rotation of the universal joint assembly (60) is located on the axis of the pivot shaft between the swing member (20) and the mounting base (10) .
The steering mechanism according to claim 1, wherein:

The output section (62) is respectively rotatably connected with the first steering wheel assembly (30) and the second steering wheel assembly (40);

The output section (62) can rotate with the rotation of the input section (61), and the output section (62) can rotate with respect to the input section (61) on a first axis; the output section (62) ) Can rotate with a second axis relative to the input section (61); the second axis and the first axis are perpendicular to each other;

The swing member (20) can rotate with a third axis relative to the mounting base (10), and the third axis and the first axis coincide with the steering mechanism when the steering mechanism is in a downward and straight running state;

The operating portion (50) can rotate with respect to the mounting base (10) on a fourth axis; the fourth axis and the second axis are perpendicular to each other, and the fourth axis and the first axis are perpendicular to each other ；

Wherein, the fourth axis, the third axis, the first axis and the second axis intersect at the center of rotation of the universal joint assembly (60).
The steering mechanism according to claim 1, wherein the steering mechanism further comprises:

The first connecting piece (70), the first end of the first connecting piece (70) is rotatably connected with the output section (62), and the second end of the first connecting piece (70) is connected to the output section (62). The first steering wheel assembly (30) is movably connected;

The second connecting piece (80), the first end of the second connecting piece (80) is rotatably connected with the output section (62), and the second end of the second connecting piece (80) is connected to the output section (62). The second steering wheel assembly (40) is movably connected.
The steering mechanism according to claim 4, wherein the transition section (63) of the universal joint assembly (60) is rotatably connected with the input section (61); the transition section (63) Relative to the input section (61), it can rotate on a first axis; the transition section (63) is rotatably connected with the output section (62), and the output section (62) is relative to the transition section (63) It can rotate on a second axis; the first axis and the second axis are perpendicular to each other;

The output section (62) is a half-ring sheet structure, and the two ends of the half-ring sheet structure are respectively rotatably connected with the two ends of the transition section (63). The middle part is respectively rotatably connected with the second end of the first connecting piece (70) and the second end of the second connecting piece (80).
The steering mechanism according to claim 5, wherein the steering mechanism further comprises: a connecting shaft (66); the second end of the first connecting piece (70) has a second connecting hole, and the second connecting piece (80) ) Has a third connecting hole at the second end;

A protrusion is formed in the middle of the half-ring sheet-like structure, and the protrusion is opened with a groove toward one side of the transition section (63). The half-ring sheet-like structure is connected to the first The connecting piece (70) and the second connecting piece (80) are rotatably connected, and the connecting shaft (66) passes through the groove, the second connecting hole and the third connecting hole; or, so A first connecting hole is opened in the middle of the half-ring sheet structure, and the half-ring sheet structure is rotatably connected with the first connecting piece (70) and the second connecting piece (80) through the first connecting hole. Are connected, the connecting shaft (66) passes through the first connecting hole, the second connecting hole and the third connecting hole.
The steering mechanism according to claim 4, wherein the first steering wheel assembly (30) comprises a first steering wheel (31) and a third connecting member (32), and the first steering wheel (31) It is rotatably connected with the third connecting piece (32), the first end of the third connecting piece (32) is pivotally connected with the first end of the swinging piece (20), and the third connecting The second end of the member (32) is pivotally connected to the first end of the first connecting member (70); the second steering wheel assembly (40) includes a second steering wheel (41) and a fourth connecting member ( 42), the second steering wheel (41) is rotatably connected with the fourth connecting member (42), and the first end of the fourth connecting member (42) is connected to the swing member (20) The second end is pivotally connected, and the second end of the fourth connecting member (42) is pivotally connected to the first end of the second connecting member (80).
The steering mechanism according to claim 1, wherein the mounting base (10) is provided with a mounting hole, the operating portion (50) includes an operating shaft and a handlebar, and the operating shaft is rotatably penetrated In the mounting hole, the handlebar is connected with the first end of the operating shaft, and the second end of the operating shaft is connected with the input section (61).
The steering mechanism according to claim 8, characterized in that the second end of the operating shaft and the input section (61) are integrally formed or detachably connected.
A scooter comprising a steering structure, characterized in that the steering structure is the steering structure according to any one of claims 1 to 9.