CN116238581B - Electric steering column structure and vehicle - Google Patents

Abstract

The application relates to the technical field of vehicles, in particular to an electric steering column structure and a vehicle, wherein the electric steering column structure comprises: the first column tube is provided with a first connecting part and is used for being connected with the steering wheel assembly; the second cylinder is provided with a second connecting part and is used for being in transmission connection with the wheel assembly; the transmission assembly comprises a first adjusting bracket, the first adjusting bracket is connected with the first column tube through a first connecting part and a second connecting part, the first connecting part is provided with at least one preset breakpoint, and the second connecting part is deformable; the driving part is in transmission connection with the first adjusting bracket so as to drive the first column tube to slide up and down along the second column tube. According to the electric steering column structure, when the electric steering column structure is impacted, the first connecting part is broken at the preset breaking point, the transmission assembly is connected with the first column pipe only through the second connecting part, the first column pipe stretches or compresses the second connecting part under the action of gravity, and the collapsing energy absorption is realized through the deformation of the second connecting part, so that the effect of buffering is achieved.

Description

Electric steering column structure and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to an electric steering column structure and a vehicle.

Background

With the popularization of dynamoelectric and intellectualization, the configuration of the whole automobile increases modes such as welcome and the like, and the steering column is required to realize electric adjustability, so that the functions of automatically adjusting the height of a steering wheel according to the height of a driver, realizing memory of the steering wheel and the like are realized. The structure of the electric adjustment steering column is relatively complex, and not only is the electric adjustment function realized, but also the steering column collapse function during the whole car collision is realized. In this way, the steering wheel assembly can be buffered when the vehicle is impacted, preventing a rigid impact from being applied to the driver.

In some existing vehicles, a steering column comprises a column tube, a mounting bracket is sleeved outside the column tube, a limiting bracket is arranged between the mounting bracket and the upper portion of the column tube, and buffer energy absorbing blocks fixed with the mounting bracket are respectively arranged at two ends of the upper portion of the mounting bracket. This is mainly for ordinary steering columns, and the manual adjustment of the steering wheel height is required, and is not applicable to electrically-adjustable steering columns with complicated structures.

Accordingly, there is a need for a crush energy absorbing structure that can be applied in an electrically adjustable steering column.

Disclosure of Invention

One of the objects of the present application is to provide an electric steering column structure that is not only automatically adjustable so that a first column tube slides up and down along a second column tube, but also can achieve normal crushing when receiving a collision impact, thereby protecting a driver and reducing injuries.

The application further provides a vehicle which comprises the electric steering column structure.

In order to achieve the above purpose, the technical scheme adopted by the application is as follows:

In a first aspect, the present application provides an electric steering column structure for a vehicle including a steering wheel assembly and a wheel assembly, comprising: the first column tube is provided with a first matching piece and is used for being connected with the steering wheel assembly; the first column pipe is sleeved with the second column pipe, a second matching piece is arranged on the second column pipe and is in transmission connection with the wheel assembly, and the first matching piece is in transmission connection with the second matching piece so that the first column pipe and the second column pipe can synchronously rotate; the transmission assembly comprises a first adjusting bracket, the first adjusting bracket is connected with the first column tube through a first connecting piece and a second connecting piece, the first connecting piece is provided with at least one preset breakpoint, and the second connecting piece is deformable; and the driving part is in transmission connection with the first adjusting bracket so as to drive the first column tube to slide up and down along the second column tube.

According to the electric steering column structure, the driving part is in transmission connection with the first adjusting bracket to drive the first column tube to slide up and down along the second column tube, so that the automatic adjustment of the height of the steering wheel assembly is realized, when the steering wheel assembly is impacted, the first connecting piece is broken at a preset break point, the transmission assembly is connected with the first column tube only through the second connecting piece, the first column tube stretches or compresses the second connecting piece under the action of gravity, the collapsing energy absorption is realized through the deformation of the second connecting piece, the buffer effect is realized, the first column tube can be prevented from moving downwards further, and the secondary injury to a driver is avoided.

According to the electric steering column structure, the first adjusting bracket is provided with the first assembly hole, the first column tube is provided with the second assembly hole, the first connecting piece is configured as the shearing screw, and the shearing screw is simultaneously penetrated in the first assembly hole and the second assembly hole.

Optionally, the first adjusting bracket is provided with an avoidance hole, the first pillar tube is provided with a positioning boss with a convex surface, the positioning boss is clamped in the avoidance hole, one end of the second connecting piece is connected with the positioning boss, and the other end of the second connecting piece is clamped with the first adjusting bracket.

Optionally, the positioning boss comprises a boss body, and at least one sub-boss is arranged on the side surface of the boss body.

Optionally, the second connecting piece includes integrated into one piece's first connecting portion and second connecting portion, and first connecting portion and second connecting portion are relative and one end is connected, and first connecting portion is connected with the location boss, and the both sides of the width direction in one of second connecting portion and the first regulation support are equipped with buckle portion respectively, and the both sides of the width direction of another are equipped with pothook portion respectively, and pothook portion card is located in the buckle portion.

Optionally, the device further comprises a second adjusting bracket, the second adjusting bracket is connected with the first adjusting bracket and jointly defines a guide groove, the guide groove is communicated with the avoidance hole, the second connecting piece is clamped in the guide groove, one end of the second adjusting bracket is provided with a bent limiting part, and the limiting part abuts against the lower end of the second connecting part.

Optionally, the second connecting portion is provided with a buckling portion, the lower edge of the buckling portion exceeds the lower edge of the second connecting portion, and the limiting portion is clamped between the two buckling portions.

Optionally, at least one of the two opposite first side walls of the first adjusting bracket is provided with a positioning groove, the hook part is arranged in the positioning groove, and/or the second adjusting bracket comprises a bracket body and second side walls arranged on two sides of the bracket body, the second side walls are positioned on one side of the bracket body away from the second connecting part, and the two second side walls are positioned between the two first side walls.

Optionally, the transmission assembly further comprises a screw assembly and a screw nut, the screw assembly is in transmission connection with the driving part, the screw assembly comprises a screw, the screw nut is sleeved on the screw, two matching keys are symmetrically arranged on the outer wall of the screw nut, a clamping groove facing to an opening far away from the direction of the first column tube is formed in the first side wall, the clamping groove penetrates through the first side wall along the thickness direction of the first side wall, and the matching keys are clamped in the clamping groove.

In a second aspect, the present application provides a vehicle including the above-described electric power steering column structure.

According to the vehicle disclosed by the invention, the electric steering column structure can be in transmission connection with the first adjusting bracket through the driving part to drive the first column tube to slide up and down along the second column tube, so that the automatic adjustment of the height of the steering wheel assembly is realized, when the vehicle is impacted, the first connecting part is broken at a preset break point, the transmission assembly is connected with the first column tube only through the second connecting part, the first column tube stretches or compresses the second connecting part under the action of gravity, the collapsing energy absorption is realized through the deformation of the second connecting part, the buffer effect is realized, the first column tube can be prevented from moving down further, the secondary injury to a driver is avoided, and the safety coefficient of the vehicle is improved.

Drawings

Fig. 1 shows an exploded view of an electric power steering column structure according to an embodiment of the present invention;

fig. 2 shows a perspective view of a first column tube of the electric steering column structure according to an embodiment of the present invention;

Fig. 3 is a perspective view showing a second column of the electric power steering column structure according to the embodiment of the invention;

fig. 4 shows a perspective view of a second connector of an electric steering column structure according to an embodiment of the present invention;

fig. 5 is a perspective view showing a screw assembly of an electric power steering column structure according to an embodiment of the present invention;

Fig. 6 is a perspective view showing a lead screw nut of an electric power steering column structure according to an embodiment of the present invention;

fig. 7 illustrates a perspective view of a second adjustment bracket of an electric steering column structure according to an embodiment of the present invention;

fig. 8 illustrates a perspective view of a first adjustment bracket of an electric steering column structure according to an embodiment of the present invention.

Wherein:

1. The first pillar tube, 101, the second core shaft, 12, the second assembly hole, 13, the positioning boss, 2, the second core tube, 21, the first core shaft, 22, the limit seat, 3, the screw rod assembly, 32, the screw rod, 5, the screw rod nut, 51, the screw rod hole, 52, the matching key, 6, the first fastener, 7, the second fastener, 8, the second adjusting bracket, 81, the third assembly hole, 82, the limit part, 83, the bracket body, 84, the second side wall, 9, the second connecting piece, 91, the sixth assembly hole, 92, the buckle part, 93, the first connecting part, 94, the second connecting part, 10, the first connecting piece, 11, the first adjusting bracket, 111, the fourth assembly hole, 112, the first assembly hole, 113, the hook part, 114, the clamping groove, 115 and the positioning groove.

Detailed Description

Further advantages and effects of the present invention will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

As shown in fig. 1, an electric power steering column structure according to an embodiment of the present invention is used for a vehicle including a steering wheel assembly and a wheel assembly, comprising: a first column tube 1, a second column tube 2, a transmission assembly and a driving part.

Specifically, a first matching piece is arranged on the first column tube 1, and the first column tube 1 is used for being connected with a steering wheel assembly; the first column pipe 1 is sleeved with the second column pipe 2, a second matching piece is arranged on the second column pipe 2, the second column pipe 2 is in transmission connection with the wheel assembly, and the first matching piece and the second matching piece are in transmission connection so that the first column pipe 1 and the second column pipe 2 can synchronously rotate; the transmission assembly comprises a first adjusting bracket 11, the first adjusting bracket 11 is connected with the first column tube 1 through a first connecting piece 10 and a second connecting piece 9, the first connecting piece 10 is provided with at least one preset breakpoint, and the second connecting piece 9 is deformable; the driving part is in transmission connection with the first adjusting bracket 11 to drive the first column tube 1 to slide up and down along the second column tube 2.

The first matching piece and the second matching piece are connected to limit the relative rotation of the first column tube 1 and the second column tube 2, but the first column tube 1 is not affected to slide up and down along the second column tube 2, and the steering wheel assembly can drive the first column tube 1 to rotate and drive the second column tube 2 to synchronously rotate when being rotated by the acting force of a user, so that the angle of the wheel assembly is changed. When the electric steering column structure is applied to a vehicle, the first adjusting bracket 11 is connected with the first column tube 1 through the first connecting piece 10 and the second connecting piece 9, and the driving part is in transmission connection with the first adjusting bracket 11, so that the first column tube 1 is driven to slide up and down along the second column tube 2 by driving the first adjusting bracket 11 to move up and down, and the height of the steering wheel assembly is adaptively adjusted according to the heights of different users. The first connecting piece 10 is provided with at least one preset breakpoint, so that when the electric steering column structure is impacted, the electric steering column structure can be broken at the preset breakpoint, the first adjusting bracket 11 is disconnected with the first column tube 1 through the first connecting piece 10, only the connection between the first adjusting bracket 11 and the first column tube 1 through the second connecting piece 9 is reserved, the first column tube 1 moves downwards under the action of gravity to drive the second connecting piece 9 to deform, after the second connecting piece 9 deforms to a certain degree, the first column tube 1 is prevented from continuing to move downwards, so that the collapsing energy absorption of the second connecting piece 9 is realized, the first column tube 1 has a buffering moving process towards the direction, the steering wheel assembly is prevented from rigidly colliding with a user, and secondary damage to the user is avoided.

The first pillar tube 1 and the second pillar tube 2 are sleeved, for example, in the first embodiment, the second pillar tube 2 is hollow, and the first pillar tube 1 may be disposed in the second pillar tube 2 in a penetrating manner; in the second embodiment, the second pillar 2 includes a first outer tube having a hollow tubular shape, a first mandrel 21 is disposed in the first outer tube, an inner wall of the first outer tube is spaced from an outer wall of the first mandrel 21, the first pillar 1 has a hollow tubular shape, and the first pillar 1 can slide up and down between the first mandrel 21 and the first outer tube.

The end of the first vial 1 facing away from the second vial 2 is provided with a second mandrel 101 for assembly with a steering wheel assembly.

The first fitting and the second fitting are drivingly connected such that the first column tube 1 and the second column tube 2 can rotate in unison, the connection of the first fitting and the second fitting including, but not limited to, a spline connection and a flat key connection, for example, in the first embodiment, one of the first fitting and the second fitting is configured as an internal spline and the other is configured as an external spline; in the second embodiment, the first fitting is configured as an external spline, the first fitting is provided on the outer wall of the first mandrel 21, the second fitting is configured as an internal spline, and the second fitting is provided on the inner wall surface of the first column tube 1.

The first connecting member 10 is provided with at least one predetermined breaking point, which may be that the first connecting member 10 is provided with one predetermined breaking point, or that the first connecting member 10 is provided with a plurality of predetermined breaking points, for example, two, three, four, five, etc., each of which is located in a plane spaced apart in the axial direction of the first connecting member 10. For example, the first connector 10 may be configured as a shear screw, such that the first connector 10 has two predetermined breaking points, and the first connector 10 may be other mechanical structures having predetermined breaking points, not limited to the shear screw, as long as it can be broken when it is impacted.

According to the electric steering column structure provided by the embodiment of the invention, the driving part is in transmission connection with the first adjusting bracket 11 to drive the first column tube 1 to slide up and down along the second column tube 2, so that the automatic adjustment of the height of the steering wheel assembly is realized, when the steering wheel assembly is impacted, the first connecting piece 10 is broken at a preset break point, the transmission assembly is only connected with the first column tube 1 through the second connecting piece 9, the first column tube 1 stretches or compresses the second connecting piece 9 under the action of gravity, the collapsing energy absorption is realized through the deformation of the second connecting piece 9, the buffering effect is realized, and meanwhile, the first column tube 1 can be prevented from moving down further, and the secondary injury to a driver is avoided.

As shown in fig. 2 and 8, according to the electric steering column structure of the embodiment of the present invention, the first adjustment bracket 11 is provided with the first fitting hole 112, the first column tube 1 is provided with the second fitting hole 12, and the first connector 10 is configured as a shear screw which is simultaneously inserted into the first fitting hole 112 and the second fitting hole 12. In this way, the assembly of the first adjusting bracket 11 and the first connecting member 10 can be simplified, and when the electric steering column is impacted, after the shearing screw is broken by the shearing force, the failure of the connection of the first adjusting bracket 11 and the first column tube 1 through the shearing screw is realized, so that the structural arrangement is simplified.

As shown in fig. 1 and 2, in some embodiments, the first adjusting bracket 11 is provided with an avoidance hole, the first column tube 1 is provided with a positioning boss 13 with a convex surface, the positioning boss 13 is clamped in the avoidance hole, one end of the second connecting piece 9 is connected with the positioning boss 13, and the other end of the second connecting piece 9 is clamped with the first adjusting bracket 11.

It can be appreciated that the positioning boss 13 can cooperate spacingly with dodging the hole on the one hand, realize the location to first regulation support 11, make things convenient for alignment between first assembly hole 112 and the second assembly hole 12, on the other hand positioning boss 13 can be connected through first fastener 6 with second connecting piece 9 for overall structure sets up compactly, guarantee the joint strength of second connecting piece 9 and positioning boss 13 simultaneously, especially after first connecting piece 10 became invalid, can ensure that second connecting piece 9 is driven by first pillar 1 and warp, the other end and the first regulation support 11 joint of second connecting piece 9 can simplify the structure setting, the reduction assembly degree of difficulty. The positioning boss 13 is provided with a fifth assembly hole, the second connecting piece 9 is provided with a sixth assembly hole 91, and the first fastening piece 6 is arranged in the sixth assembly hole 91 and the fifth assembly hole in a penetrating mode.

Wherein, for simplifying the structural arrangement, the surface of the positioning boss 13 facing the second connection member 9 is at least flush with the wall surface of the first adjustment bracket 11, that is, in some embodiments, the surface of the positioning boss 13 facing the second connection member 9 is flush with the wall surface of the first adjustment bracket 11, and in some embodiments, the surface of the positioning boss 13 facing the second connection member 9 exceeds the wall surface of the first adjustment bracket 11.

In order to avoid the positioning boss 13 rotating in the avoidance hole, the cross section of the avoidance hole is prevented from being circular as much as possible, for example, the cross section of the avoidance hole may be square, rectangle, triangle, ellipse, other polygons, and the like.

In addition, in order to facilitate the positioning boss 13 to be clamped into the avoidance hole, or in order to facilitate the positioning boss 13 to be detached from the avoidance hole during maintenance, a guiding inclined plane is arranged on the side surface of the positioning boss 13.

As shown in fig. 2, in some embodiments, the positioning boss 13 includes a boss body, and at least one sub-boss is provided on a side surface of the boss body, so that the possibility that the positioning boss 13 slightly rotates in the avoidance hole can be further reduced. For example, two opposite sides of the boss body are respectively provided with a sub-boss, or four sides of the boss body are respectively provided with a sub-boss, etc., which is not limited by the application. In the embodiment shown in fig. 2, the lower end face of the sub-boss is flush with the lower end face of the boss body, and this arrangement can simplify the forming of the relief hole, since the first adjusting bracket 11 is normally supported after being punched by the sheet metal member.

As shown in fig. 1,4 and 8, in some embodiments, the second connecting piece 9 includes a first connecting portion 93 and a second connecting portion 94 that are integrally formed, the first connecting portion 93 and the second connecting portion 94 are opposite and connected at one end, the first connecting portion 93 is connected with the positioning boss 13, two sides of one of the second connecting portion 94 and the first adjusting bracket 11 in the width direction are respectively provided with a fastening portion 92, two sides of the other one in the width direction are respectively provided with a fastening hook portion 113, and the fastening hook portion 113 is fastened in the fastening portion 92.

After the first connecting piece 10 fails, the first pillar 1 moves downwards to drive the second connecting piece 9 to deform, and the second connecting piece 9 bends to form the first connecting portion 93 and the second connecting portion 94, so that the second connecting piece 9 can bear more crumple energy absorption through bending deformation and stretching deformation, and the buffer effect of the second connecting piece 9 on the first pillar 1 is further improved.

Wherein, the two sides of the width direction of one of the second connecting portion 94 and the first adjusting bracket 11 are respectively provided with a fastening portion 92, the two sides of the width direction of the other one are respectively provided with a fastening portion 113, the fastening portions 113 are fastened in the fastening portions 92, that is, in some embodiments, the two sides of the width direction of the second connecting portion 94 are respectively provided with fastening portions 92, the two sides of the width direction of the first adjusting bracket 11 are respectively provided with fastening portions 113, in other embodiments, the two sides of the width direction of the second connecting portion 94 are respectively provided with fastening portions 113, and the two sides of the width direction of the first adjusting bracket 11 are respectively provided with fastening portions 92.

In some embodiments, the second connection 9 may be configured as a steel strip.

As shown in fig. 1 and 7, in some embodiments, the device further includes a second adjusting bracket 8, where the second adjusting bracket 8 is connected with the first adjusting bracket 11 and defines a guide slot together, the guide slot is communicated with the avoidance hole, the second connecting piece 9 is clamped in the guide slot, one end of the second adjusting bracket 8 is provided with a bent limiting portion 82, and the limiting portion 82 abuts against the lower end of the second connecting portion 94. So set up, can lead to spacingly through the guide slot to second connecting piece 9, guarantee second connecting piece 9 can not warp wantonly in the collision ulceration process, and similarly, spacing portion 82 supports in the lower extreme of second connecting portion 94 also in order to further carry out spacingly to second connecting piece 9, further guarantee second connecting piece 9 can not warp wantonly in the collision ulceration process, prevents that the collision energy-absorbing effect of second connecting piece 9 from weakening.

As shown in fig. 7, in some embodiments, the second adjusting bracket 8 is provided with a third assembly hole 81, the first adjusting bracket 11 is provided with a fourth assembly hole 111, the second adjusting bracket 8 and the first adjusting bracket 11 are connected by a second fastening member 7, and the second fastening member 7 is inserted into the third assembly hole 81 and the fourth assembly hole 111.

As shown in fig. 4, in some embodiments, the second connecting portion 94 is provided with a fastening portion 92, the lower edge of the fastening portion 92 exceeds the lower edge of the second connecting portion 94, and the limiting portion 82 is clamped between the two fastening portions 92, so that the limiting portion 82 can be limited by the fastening portion 92, a foolproof effect is achieved during assembly, the relative positions of the limiting portion 82 and the second connecting piece 9 can be further guaranteed during use, dislocation is prevented, the second connecting piece 9 is guaranteed not to deform randomly during collision and collapse, and the collision energy absorbing effect of the second connecting piece 9 is further prevented from weakening.

As shown in fig. 8, in some embodiments, a positioning groove 115 is formed on at least one of two opposite first side walls of the first adjusting bracket 11, and the hook portion 113 is disposed in the positioning groove 115. In this way, when the electric steering column structure is impacted, the hook portion 113 can be further prevented from coming out of the engagement portion 92. The positioning groove 115 penetrates the first regulation bracket 11 in the thickness direction of the first regulation bracket 11, and the cross section of the positioning groove 115 is not limited to be circular, square, elliptical, triangular, rectangular, other polygonal, etc.

As shown in fig. 7, in some embodiments, the second adjusting bracket 8 includes a bracket body 83 and second side walls 84 disposed at both sides of the bracket body 83, the second side walls 84 are located at one side of the bracket body 83 facing away from the second connecting portion 94, and the two second side walls 84 are located between the two first side walls. On the one hand, the second side wall 84 can play a guiding role when the second adjusting bracket 8 is arranged between the two first side walls of the first adjusting bracket 11, on the other hand, the second side wall 84 can strengthen the structural strength of the bracket body 83, and on the other hand, when the electric steering column structure is impacted, one second side wall 84 can be propped against the first side wall on the same side when the second adjusting bracket 8 is impacted, so that the stress area is increased, and the failure of parts is prevented. The second side wall 84 is located on the side of the bracket body 83 facing away from the second connecting portion 94, and can prevent the second side wall 84 from interfering with the deformation of the second connecting member 9 while downsizing the first adjustment bracket 11.

As shown in fig. 5, 6 and 8, in some embodiments, the transmission assembly further includes a screw assembly 3 and a screw nut 5, the screw assembly 3 is in transmission connection with the driving portion, the screw assembly 3 includes a screw 32, the screw nut 5 is sleeved on the screw 32, two matching keys 52 are symmetrically disposed on an outer wall of the screw nut 5, a clamping groove 114 which is open towards a direction far away from the first column tube 1 is disposed on the first side wall, the clamping groove 114 penetrates through the first side wall along a thickness direction of the first side wall, and the matching keys 52 are clamped in the clamping groove 114.

That is, the screw nut 5 is provided with a screw hole 51, the screw 32 is inserted into the screw hole 51, and the screw 32 is driven to rotate by the driving part, so that the screw nut 5 can move up and down along the screw 32, thereby driving the first column tube 1 to slide up and down along the second column tube 2, the driving part is generally configured as a motor, and the screw nut 5 can move up or down along the screw 32 by changing the steering direction of the motor. Through the cooperation of cooperation key 52 and joint groove 114, can realize the synchronous motion of screw-nut 5 and first vial 1, simplified the structure setting, joint groove 114 orientation is kept away from first vial 1 direction opening for cooperation key 52 can be gone into to joint groove 114 through the opening card, has simplified the assembly of screw-nut 5 and first regulation support 11, thereby makes things convenient for the dismouting.

As shown in fig. 3, in some embodiments, the outer wall surface of the second column tube 2 is provided with a limiting seat 22, and the screw rod assembly 3 is clamped in the limiting seat 22, so that the limiting and positioning of the screw rod assembly 3 are realized, the structural arrangement is simplified, and the overall structure of the electric steering column structure is more compact.

The vehicle according to the embodiment of the invention comprises the electric steering column structure.

According to the vehicle provided by the embodiment of the invention, the electric steering column structure can be in transmission connection with the first adjusting bracket 11 through the driving part to drive the first column tube 1 to slide up and down along the second column tube 2, so that the automatic adjustment of the height of the steering wheel assembly is realized, when the vehicle is impacted, the first connecting part 93 breaks at a preset break point, the transmission assembly is only connected with the first column tube 1 through the second connecting part 94, the first column tube 1 stretches or compresses the second connecting part 94 under the action of gravity, the collapsing energy absorption is realized through the deformation of the second connecting part 94, the buffering effect is realized, the first column tube 1 can be prevented from moving down further, the secondary injury to a driver is avoided, and the safety coefficient of the vehicle is improved.

It is understood that the vehicle in the embodiment of the present application may be any vehicle with mobility, including vehicles with autonomous driving or intelligent driving, such as manned vehicles (sedans, buses, etc.), cargo-carrying vehicles (regular trucks, vans, special vehicles (logistics distribution vehicles, patrol vehicles), recreational vehicles, rescue vehicles (e.g. fire trucks, ambulances), etc.

It should be noted that references in the specification to "one implementation," "an embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (8)

1. An electric power steering column structure for a vehicle including a steering wheel assembly and a wheel assembly, comprising:

The steering wheel comprises a first column tube (1), wherein a first matching piece is arranged on the first column tube (1), and the first column tube (1) is used for being connected with the steering wheel assembly;

The first column pipe (1) is sleeved with the second column pipe (2), a second matching piece is arranged on the second column pipe (2), the second column pipe (2) is in transmission connection with the wheel assembly, and the first matching piece is in transmission connection with the second matching piece so that the first column pipe (1) and the second column pipe (2) can synchronously rotate;

The transmission assembly comprises a first adjusting bracket (11), the first adjusting bracket (11) is connected with the first column tube (1) through a first connecting piece (10) and a second connecting piece (9), the first connecting piece (10) is provided with at least one preset breakpoint, and the second connecting piece (9) is deformable;

The drive part, drive part with first regulation support (11) transmission is connected in order to drive first pillar (1) is followed second pillar (2) slides from top to bottom, first regulation support (11) are equipped with dodges the hole, be equipped with location boss (13) on first pillar (1) on the protrusion surface, location boss (13) card is located dodge in the hole, the one end of second connecting piece (9) with location boss (13) are connected, the other end of second connecting piece (9) with first regulation support (11) joint, second connecting piece (9) include integrated into one piece's first connecting portion (93) and second connecting portion (94), first connecting portion (93) with second connecting portion (94) are relative and one end is connected, first connecting portion (93) with location boss (13) are connected, second connecting portion (94) with one in the first regulation support (11) the both sides of the buckle direction be equipped with respectively in the width direction of buckle portion (92), be equipped with in the both sides of the buckle portion (113) respectively, the both sides of hook portion (113) are located.

2. The electric power steering column structure according to claim 1, characterized in that a first fitting hole (112) is provided on the first adjustment bracket (11), a second fitting hole (12) is provided on the first column tube (1), and the first connecting member (10) is configured as a shear screw that is simultaneously inserted into the first fitting hole (112) and the second fitting hole (12).

3. The electric power steering column structure according to claim 1, wherein the positioning boss (13) includes a boss body, and at least one sub-boss is provided on a side surface of the boss body.

4. The electric steering column structure according to claim 1, further comprising a second adjusting bracket (8), wherein the second adjusting bracket (8) is connected with the first adjusting bracket (11) and jointly defines a guide groove, the guide groove is communicated with the avoidance hole, the second connecting piece (9) is clamped in the guide groove, one end of the second adjusting bracket (8) is provided with a bent limiting portion (82), and the limiting portion (82) abuts against the lower end of the second connecting portion (94).

5. The electric steering column structure according to claim 4, wherein the second connecting portion (94) is provided with the fastening portion (92), a lower edge of the fastening portion (92) exceeds a lower edge of the second connecting portion (94), and the limiting portion (82) is clamped between the two fastening portions (92).

6. The electric power steering column structure according to claim 4, characterized in that a positioning groove (115) is provided on at least one of two opposing first side walls of the first adjustment bracket (11), the hook portion (113) is provided in the positioning groove (115), and/or the second adjustment bracket (8) includes a bracket body (83) and second side walls (84) provided on both sides of the bracket body (83), the second side walls (84) are located on a side of the bracket body (83) facing away from the second connecting portion (94), and two second side walls (84) are located between the two first side walls.

7. The electric steering column structure according to claim 6, wherein the transmission assembly further comprises a screw assembly (3) and a screw nut (5), the screw assembly (3) is in transmission connection with the driving part, the screw assembly (3) comprises a screw (32), the screw nut (5) is sleeved on the screw (32), two matching keys (52) are symmetrically arranged on the outer wall of the screw nut (5), a clamping groove (114) which is open towards the direction far away from the first column tube (1) is arranged on the first side wall, the clamping groove (114) penetrates through the first side wall along the thickness direction of the first side wall, and the matching keys (52) are clamped in the clamping groove (114).

8. A vehicle comprising the electric power steering column structure according to any one of claims 1 to 7.