CN217598469U - Attitude adjusting assembly, vehicle-mounted audio-visual equipment and vehicle - Google Patents

Abstract

The utility model discloses a gesture adjusting part, on-vehicle audio-visual equipment and vehicle, gesture adjusting part includes: the rotary mechanism is suitable for fixing the audio-visual equipment and drives the audio-visual equipment to rotate; the telescopic mechanism is rotatably connected with the telescopic mechanism, the telescopic mechanism drives the audio-visual equipment to stretch through the rotary mechanism, and the telescopic mechanism drives the rotary mechanism to rotate through self stretching; and the driving mechanism is connected with the telescopic mechanism and drives the telescopic mechanism to stretch. According to the utility model discloses gesture adjusting part has advantages such as small, the dismouting of being convenient for and suitability are high.

Description

Attitude adjustment assembly, vehicle-mounted audio-visual device and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a gesture adjusting part, on-vehicle audio-visual equipment and vehicle are related to.

Background

The posture adjusting assembly in the related art can only enable the audio-visual equipment to rotate or stretch normally, and cannot rotate or stretch at the same time, even if two movement directions of rotation and stretching are integrated in some posture adjusting assemblies, the posture adjusting assembly is complex in structure, large in required installation space and low in applicability due to unreasonable structure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an attitude adjusting component, this attitude adjusting component have small, be convenient for dismouting and advantage such as suitability height.

According to the utility model discloses an on-vehicle audio-visual equipment with above-mentioned gesture adjusting part has still been provided.

According to the utility model discloses a vehicle that has above-mentioned on-vehicle audio-visual equipment has still been provided.

In order to achieve the above object, according to the utility model discloses a first aspect embodiment provides an attitude adjusting component is applied to on-vehicle audio-visual equipment, includes: the rotary mechanism is suitable for fixing the audio-visual equipment and drives the audio-visual equipment to rotate; the telescopic mechanism is rotatably connected with the telescopic mechanism, the telescopic mechanism drives the audio-visual equipment to stretch through the rotary mechanism, and the telescopic mechanism drives the rotary mechanism to rotate through self stretching; and the driving mechanism is connected with the telescopic mechanism and drives the telescopic mechanism to stretch.

According to the utility model discloses gesture adjusting part has advantages such as small, the dismouting of being convenient for and suitability are high.

According to some embodiments of the invention, the telescoping direction of the telescoping mechanism is not parallel to the axis of rotation of the rotating mechanism.

According to some embodiments of the present invention, the telescopic direction of the telescopic mechanism is perpendicular to the rotation axis of the rotary mechanism.

According to some embodiments of the invention, the telescopic mechanism comprises: the rotating mechanism is movably connected with the fixed bracket; the telescopic shaft is connected with the fixed bracket in a sliding mode, and the rotating mechanism is connected with the telescopic shaft in a rotating mode; when the telescopic shaft slides relative to the fixed support, the fixed support pushes the rotating mechanism to move relative to the fixed support and rotate relative to the telescopic shaft.

According to some embodiments of the invention, the telescopic mechanism further comprises: at least one preload member provided between an inner peripheral surface of the fixing bracket and an outer peripheral surface of the telescopic shaft to fix positions of the fixing bracket and the telescopic shaft in a radial direction of the telescopic shaft.

According to some embodiments of the invention, the telescopic mechanism further comprises: and the sliding lantern ring is arranged on the inner peripheral surface of the fixed bracket and is sleeved on the outer peripheral surface of the telescopic shaft in a sliding manner.

According to some embodiments of the present invention, the telescoping mechanism further comprises: the telescopic limiting part is installed on one of the fixed support and the telescopic shaft, a limiting groove is formed in the other one of the fixed support and the telescopic shaft, and the telescopic limiting part slides in the limiting groove to limit the sliding range of the telescopic shaft relative to the fixed support.

According to some embodiments of the invention, the rotation mechanism comprises: a rotating bracket rotatably connected with the telescopic shaft, the rotating bracket being adapted to the stationary audio-visual apparatus; a guide groove bracket mounted to the fixed bracket and having a guide groove; and one end of the connecting rod is connected with the rotating bracket, and the other end of the connecting rod is connected with the guide groove in a sliding manner.

According to some embodiments of the invention, the rotating mechanism further comprises: the other end of the connecting rod is connected with the guide groove in a sliding mode through the guide column assembly, and the guide column assembly is installed at the other end of the connecting rod and stretches into the guide groove in a sliding mode.

According to some embodiments of the present invention, the guide groove bracket is provided with a first mounting lug and at least one second mounting lug, the outer circumferential surface of the fixed bracket is provided with a support arm, the first mounting lug is mounted on the outer circumferential surface of the fixed bracket, and the second mounting lug is mounted on the support arm; the supporting arm comprises a radial section and an axial section, the radial section extends along the radial direction of the fixed support, the axial section extends along the axial direction of the fixed support, and the axial section is connected with the radial section and extends from the radial section to the direction of the audio-visual equipment; the second installation ear is for following a plurality of that the extending direction interval of guide way support set up, and is a plurality of the second installation ear includes first sub-installation ear and the sub-installation ear of second, first sub-installation ear install in radial section, the sub-installation ear of second install in axial section.

According to some embodiments of the invention, the guide groove is configured in an arc shape, the guide groove is offset from the rotation axis of the rotating bracket and protrudes in a direction away from the rotation axis of the rotating bracket; when the telescopic shaft retracts to the limit position, the lower end of the guide groove and the rotating axis of the rotating mechanism are arranged at intervals along the axial direction of the telescopic shaft; when the telescopic shaft extends to the limit position, the upper end of the guide groove and the rotating axis of the rotating mechanism are arranged at intervals along the radial direction of the telescopic shaft; the link is perpendicular to the rotational axis of the rotating bracket.

According to some embodiments of the present invention, the driving mechanism 300 comprises: the driving piece is connected with the fixed bracket; the screw rod is connected with the driving piece, and the driving piece drives the screw rod to rotate; the screw rod nut is in threaded connection with the screw rod and is connected with the telescopic shaft, and the screw rod rotates to drive the screw rod nut to move along the axial direction of the screw rod, so that the screw rod nut drives the telescopic shaft to stretch relative to the fixed support; the screw rod limiting piece is connected with the screw rod, is positioned on one side of the screw rod nut, which is back to the driving piece, and is used for limiting the stroke of the screw rod nut; the nut support is respectively connected with the telescopic shaft and the screw rod nut, and the screw rod nut drives the telescopic shaft to stretch relative to the fixed support through the nut support.

According to a second aspect of the present invention, there is provided an audiovisual equipment for a vehicle, comprising: an audio-visual device; according to the utility model discloses an embodiment of first aspect the gesture adjusting part.

According to the utility model discloses an on-vehicle audio-visual equipment of second aspect embodiment is through utilizing according to the utility model discloses an gesture adjusting part of first aspect embodiment has advantages such as small, the dismouting of being convenient for and suitability height.

According to some embodiments of the invention, the central axis of the audio-visual device is parallel to the axis of rotation of the rotary mechanism.

According to a third aspect embodiment of the present invention, there is provided a vehicle including an on-vehicle audio-visual apparatus according to the second aspect embodiment of the present invention.

According to the utility model discloses a vehicle of third aspect embodiment is through utilizing according to the utility model discloses an on-vehicle audio-visual equipment of second aspect embodiment has advantages such as small, the dismouting of being convenient for and suitability height.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an in-vehicle audio-visual apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of another view angle of the vehicle-mounted audio-visual device according to the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an attitude adjusting assembly according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an attitude adjusting assembly according to an embodiment of the present invention.

Fig. 5 is an exploded view of an in-vehicle audio-visual device according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a guide groove bracket according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a fixing bracket according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a guide post assembly according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of another viewing angle of the vehicle-mounted audio-visual device according to the embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a fixing bracket of an attitude adjusting assembly according to an embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a nut bracket of an attitude adjusting assembly according to an embodiment of the present invention.

Reference numerals:

an attitude adjusting component 1, a vehicle-mounted audio-visual device 2,

A rotating mechanism 100, a rotating bracket 110, a guide groove bracket 120, a guide groove 121, a first mounting lug 122, a second mounting lug 123, a first sub-mounting lug 124, a second sub-mounting lug 125, a connecting rod 130, a guide column assembly 140, a guide column 141, a guide nut 142, a mounting bracket 150, a first guide rod, a second guide rod and a second guide rod,

A telescopic mechanism 200, a fixed bracket 210, a telescopic limit piece 211, a supporting arm 212, a radial segment 213, an axial segment 214 a telescopic shaft 220, a limit groove 221, a preload member 230, a sliding collar 240, a collar mounting groove 250, a preload member mounting hole 260,

A driving mechanism 300, a driving member 310, a screw 320, a screw nut 330, a screw stopper 340, a nut holder 350, an expansion shaft connecting portion 351, a nut connecting portion 352, a through hole 353, an opening 354,

An audiovisual device 400.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

The attitude adjusting assembly 1 according to an embodiment of the present invention is described below with reference to the drawings.

As shown in fig. 1 to 11, the posture adjustment assembly 1 according to an embodiment of the present invention includes a rotation mechanism 100, a telescopic mechanism 200, and a driving mechanism 300. The attitude adjusting assembly 1 is applied to an in-vehicle audio-visual apparatus 2.

The rotating mechanism 100 is suitable for fixing the audio-visual device 400, the rotating mechanism 100 drives the audio-visual device 400 to rotate, the rotating mechanism 100 is rotatably connected with the telescoping mechanism 200, the telescoping mechanism 200 drives the audio-visual device 400 to telescope through the rotating mechanism 100, the telescoping mechanism 200 drives the rotating mechanism 100 to rotate through self-telescoping, the driving mechanism 300 is connected with the telescoping mechanism 200, and the driving mechanism 300 drives the telescoping mechanism 200 to telescope.

The posture adjusting assembly 1 is configured to adjust a position and an angle of the vehicle-mounted audio-visual device 2, and the audio-visual device 400 is mainly a device capable of providing visual experience and auditory experience for passengers, for example, the audio-visual device 400 may be a vehicle-mounted camera, a vehicle-mounted display device (e.g., a tablet), or a vehicle-mounted sound device.

Also, the driving mechanism 300 may be a motor, and the telescopic stroke of the telescopic mechanism 200 may be 70mm.

For example, the posture adjustment assembly 1 may be fixedly connected to the instrument desk, such that when the driving mechanism 300 rotates the rotating mechanism 100, the audiovisual device 400 may rotate, so as to change the angle of the audiovisual device 400, for example, the audiovisual device 400 may rotate from the horizontal direction to the vertical direction, or from the vertical direction to the horizontal direction, so as to meet different use requirements of passengers.

According to the utility model discloses gesture adjustment assembly 1, through the fixed audio-visual equipment 400 of rotary mechanism 100, the rotary machine drives audio-visual equipment 400 rotatory, that is to say, rotary mechanism 100 can be in the same place with audio-visual equipment 400 fixed connection, not only can utilize rotary mechanism 100 to fix the position of audio-visual equipment 400 like this, rotary mechanism 100 can rotate for the instrument desk moreover, and then utilizes rotary mechanism 100 to drive audio-visual equipment 400 rotatory to satisfy passenger's impression demand.

In addition, the rotation mechanism 100 is rotatably connected to the telescopic mechanism 200, the telescopic mechanism 200 drives the audiovisual device 400 to extend and retract through the rotation mechanism 100, the telescopic mechanism 200 drives the rotation mechanism 100 to rotate through self extension and retraction, the driving mechanism 300 is connected to the telescopic mechanism 200, and the driving mechanism 300 drives the telescopic mechanism 200 to extend and retract.

Thus, on one hand, the retractable mechanism 200 can drive the rotating mechanism 100 to retract and further drive the position of the audiovisual device 400 to move so as to adjust the height of the audiovisual device 400, and on the other hand, the rotating mechanism 100 can convert the retractable movement of the retractable mechanism 200 into the rotating movement so as to drive the audiovisual device 400 to rotate so as to adjust the angle of the audiovisual device 400.

That is, by using the telescoping mechanism 200 to drive the rotation mechanism 100 to rotate, the driving mechanism 300 can drive the rotation mechanism 100 to rotate while driving the telescoping mechanism 200 to telescope, the telescoping mechanism 200 and the rotation mechanism 100 always keep compound motion, and then the height and the rotation angle of the audiovisual device 400 are adjusted at the same time, so as to further improve the experience of passengers.

Because only need set up a actuating mechanism 300, just can drive telescopic machanism 200 and rotary mechanism 100 motion, simplified the structure of gesture adjusting part 1, the volume of gesture adjusting part 1 is littleer, and required installation space is little, the dismouting of being convenient for, and the suitability is high.

So, according to the utility model discloses gesture adjusting part 1 has advantages such as small, be convenient for assembly and suitability height.

In some embodiments of the present invention, as shown in fig. 9, the telescoping direction of the telescoping mechanism 200 is not parallel to the axis of rotation of the rotating mechanism 100.

It should be noted that, in the related art, the telescopic direction of the telescopic mechanism of the attitude adjusting assembly and the rotation axis of the rotating mechanism are generally parallel and coincide, and when the telescopic mechanism drives the rotating mechanism to rotate, the rotating mechanism will also move along the direction of the rotation axis of the rotating mechanism, and when the telescopic mechanism 200 of the attitude adjusting assembly 1 in the embodiment of the present invention drives the rotating mechanism 100 to rotate, the rotating mechanism 100 will not move along the direction of the rotation axis of the rotating mechanism 100, or the moving range is smaller.

In other words, the interference of the telescopic motion of the telescopic mechanism 200 to the motion of the rotating mechanism 100 along the direction of the rotation axis of the rotating mechanism 100 is smaller, for example, the rotation axis of the rotating mechanism 100 extends along the horizontal direction, when the telescopic mechanism 200 is telescopic, the rotating mechanism 100 rotates along the rotation axis of the rotating mechanism 100, because the telescopic direction of the telescopic mechanism 200 is not parallel to the rotation axis of the rotating mechanism 100, that is, the telescopic direction of the telescopic mechanism 200 is not the horizontal direction, thus, the moving distance of the rotating mechanism 100 in the horizontal direction can be smaller than the telescopic distance of the telescopic mechanism 200, the occupied space of the posture adjusting assembly 1 during the telescopic and rotating can be smaller, the required installation space of the posture adjusting assembly 1 is also smaller, the assembly requirement of the posture adjusting assembly 1 is lower, the disassembly and assembly are more convenient, the applicability of the posture adjusting assembly 1 is higher, and even if the in-vehicle space is smaller, the installation requirement of the posture adjusting assembly 1 of the embodiment of the present invention can still be satisfied.

In some embodiments of the present invention, as shown in fig. 9, the telescoping direction of the telescoping mechanism 200 is perpendicular to the rotation axis of the rotating mechanism 100.

Thus, the telescoping mechanism 200 does not move the rotating mechanism 100 in the direction of the rotation axis of the rotating mechanism 100 during telescoping.

For example, the telescopic direction of the telescopic mechanism 200 may extend in the vertical direction, and the rotation axis of the rotating mechanism 100 may extend in the horizontal direction, so that the telescopic mechanism 200 may drive the rotating mechanism 100 to move in the vertical direction, and further adjust the height of the audio-visual device 400 in the vertical direction, and the rotating mechanism 100 may drive the audio-visual device 400 to rotate in the vertical plane, and further, the rotating mechanism 100 may not move in the horizontal direction, that is, the audio-visual device 400 may not move in the horizontal direction, and further reduce the required installation space of the posture adjusting assembly 1 in the horizontal direction, and the requirement of the audio-visual device 400 on the space in the horizontal direction is smaller during the rotating motion and the telescopic motion, which further improves the applicability of the posture adjusting assembly 1, so that the posture adjusting assembly 1 may be applicable to vehicles with smaller in-vehicle spaces.

In some embodiments of the present invention, as shown in fig. 1-5, the telescoping mechanism 200 includes a fixed bracket 210 and a telescoping shaft 220.

The rotating mechanism 100 is movably coupled to the fixed bracket 210, the telescopic shaft 220 is slidably coupled to the fixed bracket 210, and the rotating mechanism 100 is rotatably coupled to the telescopic shaft 220. When the telescopic shaft 220 slides relative to the fixed bracket 210, the fixed bracket 210 pushes the rotating mechanism 100 to move relative to the fixed bracket 210 and rotate relative to the telescopic shaft 220.

Specifically, can be with fixed bolster 210 fixed connection in the instrument desk of vehicle, and then can be fixed in the instrument desk of vehicle with gesture adjustment assembly 1, wherein, fixed bolster 210 can carry out spacing fixed to telescopic shaft 220 to can fixed rotary mechanism 100's position, and make telescopic shaft 220 only can stretch out and draw back along telescopic shaft 220's axial, avoid telescopic shaft 220 to take place the skew, make telescopic shaft 220's flexible lighter simultaneously.

Therefore, when the telescopic shaft 220 slides relative to the fixed bracket 210, the telescopic shaft 220 can slide relative to the instrument desk, and further the rotating mechanism 100 and the audio-visual device 400 are driven to move relative to the instrument desk, so that the height adjustment of the audio-visual device 400 is realized, and when the rotating mechanism 100 rotates relative to the telescopic shaft 220, the rotating mechanism 100 can rotate relative to the instrument desk, namely the audio-visual device 400 rotates relative to the instrument desk, so that the angle of the audio-visual device 400 can be adjusted, and the use impression of passengers can be improved.

It can be understood that, through the cooperation of the telescopic shaft 220 and the rotating mechanism 100, the compound movement of the extension and the rotation of the attitude adjusting assembly 1 is realized, the connection structure is simple, and the telescopic shaft 220 is driven to extend and retract by one driving mechanism 300, so that the height adjustment and the angle rotation of the audio-visual equipment 400 can be simultaneously realized, the adjustment synchronism is higher, and the operation is simpler.

In some embodiments of the present invention, as shown in fig. 5 and 10, the retracting mechanism 200 further includes at least one preload member 230.

The preload member 230 is provided between an inner circumferential surface of the fixing bracket 210 and an outer circumferential surface of the telescopic shaft 220 to fix positions of the fixing bracket 210 and the telescopic shaft 220 in a radial direction of the telescopic shaft 220. For example, the preload member 230 may have elasticity. Wherein, the fixing bracket 210 may be provided with a preload member installation hole 260 for installing the preload member 230.

It can be understood that, the telescopic shaft 220 wears to locate fixed bolster 210, because there may be machining error, or in order to simplify the assembly between fixed bolster 210 and the telescopic shaft 220, the inner diameter of fixed bolster 210 may be greater than the outer diameter of telescopic shaft 220, through addding the pretensioning piece 230, can compensate the clearance between fixed bolster 210 and the telescopic shaft 220, and then avoided telescopic shaft 220 and fixed bolster 210 to take place relative displacement in the footpath of telescopic shaft 220, thereby avoided telescopic shaft 220 to radially take place to rock along it, gesture adjusting part 1 is better to the fixed effect of visual and audio equipment 400, avoided visual and audio equipment 400 to take place to rock, passenger's use experience has further been improved.

Further, the preload pieces 230 are arranged at intervals along the axial direction of the telescopic shaft 220, so that the preload pieces 230 can pre-tighten and fix a plurality of axial positions of the telescopic shaft 220, the radial positions of the fixed support 210 and the telescopic shaft 220 on the telescopic shaft 220 are effectively fixed, the telescopic shaft 220 is further prevented from shaking relative to the fixed support 210, and the connection between the telescopic shaft 220 and the fixed support 210 is more stable.

In some embodiments of the present invention, as shown in fig. 5 and 10, the telescopic mechanism 200 further includes at least one sliding collar 240, and the sliding collar 240 is installed on the inner circumferential surface of the fixing bracket 210 and slidably sleeved on the outer circumferential surface of the telescopic shaft 220.

That is to say, the slip lantern ring 240 is located between fixed bolster 210 and telescopic shaft 220, the slip lantern ring 240 can with fixed bolster 210 synchronous motion, wherein, be equipped with the lantern ring mounting groove 250 that is used for installing slip lantern ring 240 in the fixed bolster 210, the slip lantern ring 240 can slide for telescopic shaft 220 simultaneously, can reduce the sliding friction between fixed bolster 210 and the telescopic shaft 220 by a wide margin from this, telescopic shaft 220's flexible resistance is littleer, it is flexible lighter, and be favorable to reducing the wearing and tearing between fixed bolster 210 and the telescopic shaft 220, guarantee the stability of being connected between fixed bolster 210 and the telescopic shaft 220, avoided telescopic shaft 220 to take place to rock more effectively, can prolong gesture adjusting component 1's life simultaneously.

Further, the sliding sleeve rings 240 are arranged along the axial direction of the telescopic shaft 220 at intervals, so that the telescopic shaft 220 and the fixed support 210 can be better spaced by the sliding sleeve rings 240, contact friction between the part of the telescopic shaft 220 and the fixed support 210 is avoided, friction force between the telescopic shaft 220 and the fixed support 210 is further reduced, the telescopic shaft 220 is more easily and labor-saving to stretch, and the height of the audio-visual device 400 is more convenient to adjust.

In some embodiments of the present invention, as shown in fig. 5, the telescoping mechanism 200 further comprises a telescoping stop 211.

The telescopic limiting member 211 is installed on one of the fixed bracket 210 and the telescopic shaft 220, the other of the fixed bracket 210 and the telescopic shaft 220 is provided with a limiting groove 221, and the telescopic limiting member 211 slides in the limiting groove 221 to limit the sliding range of the telescopic shaft 220 relative to the fixed bracket 210.

For example, the telescopic limiting member 211 may be installed on an inner circumferential surface of the fixing bracket 210, the limiting groove 221 may be disposed on an outer circumferential surface of the telescopic shaft 220 and extend along an axial direction of the telescopic shaft 220, the telescopic limiting member 211 is stopped in the limiting groove 221, so that a sliding range of the telescopic shaft 220 may be limited, the telescopic shaft 220 is prevented from being separated from the fixing bracket 210, the telescopic shaft 220 and the fixing bracket 210 are more reliably connected, and the limiting groove 221 may guide sliding of the telescopic shaft 220, thereby further simplifying telescopic movement of the telescopic shaft 220, and facilitating sliding of the telescopic shaft 220.

In addition, the limit groove 221 and the telescopic limiting piece 211 are matched to limit the telescopic shaft 220 in the circumferential direction of the telescopic shaft 220, so that the telescopic shaft 220 is prevented from rotating relative to the fixed bracket 210, the telescopic shaft 220 can only extend and retract along the axial direction of the telescopic shaft 220, and the structure is more reasonable.

Moreover, the limit groove 221 is disposed on the outer circumferential surface of the telescopic shaft 220, and since the outer circumferential surface of the telescopic shaft 220 is exposed, the limit groove 221 is more conveniently processed, and the processing is more convenient, and the telescopic limiting member 211 can be a screw, and by arranging a through hole along the radial direction of the fixing bracket 210, the telescopic limiting member 211 is fixed to the through hole of the fixing bracket 210 and extends out of the inner circumferential surface of the fixing bracket 210, so that the matching of the telescopic limiting member 211 and the limit groove 221 can be realized.

In some embodiments of the present invention, as shown in fig. 3 and 4, the rotating mechanism 100 includes a rotating bracket 110, a guide groove bracket 120, and a connecting rod 130.

The rotating bracket 110 is rotatably connected with the telescopic shaft 220, the rotating bracket 110 is adapted to fix the audio visual device 400, the guide groove bracket 120 is installed at the fixing bracket 210 and has a guide groove 121, and one end of the link 130 is connected with the rotating bracket 110 and the other end thereof is slidably connected with the guide groove 121.

Specifically, the telescopic shaft 220 is fixedly connected to the rotating bracket 110, the rotating bracket 110 can only rotate relative to the telescopic shaft 220, one end of the connecting rod 130 is fixedly connected to the outer peripheral surface of the rotating bracket 110, and the other end of the connecting rod 130 is connected to the guide slot 121 through the guide post assembly 140 described below, because the length of the connecting rod 130 is not changed, and the telescopic shaft 220 can drive the rotating bracket 110 to move when telescopic, the other end of the connecting rod 130 can slide in the guide slot 121, so that the connecting rod 130 can drive the rotating bracket 110 to rotate, and the rotating bracket 110 can drive the audio-visual device 400 to rotate together.

It should be noted that, when the telescopic limiting member 211 slides to the limiting position in the limiting groove 221, since the telescopic limiting member 211 limits the telescopic shaft 220, at this time, the driving mechanism 300 is locked, the current is increased, the control system detects that the locked signal is able to perform power-off processing on the driving mechanism 300, the driving mechanism 300 interrupts power output, the attitude adjusting assembly 1 is locked to the position, and the rotation motion of the rotation mechanism 100 is stopped.

The mounting bracket 150 may be used to be connected and fixed with the audiovisual equipment 400, and the mounting bracket 150 is fixedly connected with the rotating bracket 110 to adapt to different use environments, or the mounting bracket 150 may be formed integrally with the audiovisual equipment 400 and fixed with the rotating bracket 110 through the mounting bracket 150 to realize the fixed connection between the audiovisual equipment 400 and the rotating bracket 110, so that the assembly is more convenient and the connection is more reliable.

Further, by adjusting the positions of the guide groove 121 and the link 130, the rotational speed of the rotation mechanism 100 can be adjusted so that the av device 400 can rotate at a uniform speed.

In some embodiments of the present invention, as shown in fig. 5 and 8, the rotating mechanism 100 further includes a guide post assembly 140.

The other end of the link 130 is slidably connected to the guide groove 121 through a guide post assembly 140, and the guide post assembly 140 is installed at the other end of the link 130 and slidably extends into the guide groove 121.

Thus, the other end of the connecting rod 130 can be fixed to the guide groove 121 through the guide column assembly 140, and when the other end of the connecting rod 130 slides along the guide groove 121, the guide column assembly 140 can prevent the other end of the connecting rod 130 from separating from the guide groove 121, so that the connection and matching between the connecting rod 130 and the guide groove 121 are more reliable.

Further, as shown in fig. 8, the guide post assembly 140 includes a guide post 141 and a guide nut 142.

The guide post 141 is installed at the other end of the connecting rod 130 and slidably inserted into the guide groove 121, the guide nut 142 is screw-coupled to the guide post 141, and the head portions of the guide nut 142 and the guide post 141 are disposed at opposite sides of the guide groove bracket 120 in the thickness direction.

The outer diameter of the guide nut 142 and the outer diameter of the head of the guide post 141 are both greater than the width of the guide groove 121, and when the guide post assembly 140 is assembled with the guide nut 142, the guide post 141 can be firstly extended into the guide groove 121 from one side of the guide groove 121 in the thickness direction and extended from the other side of the guide groove 121 in the thickness direction, and then screwed with the guide post 141 from the other side of the guide groove 121 through the guide nut 142.

That is, the guide post 141 is fitted into the guide groove 121 and can slide along the guide groove 121, the guide nut 142 and the head of the guide post 141 are stopped at both sides of the guide groove bracket 120 in the thickness direction, respectively, the connection of the guide post assembly 140 to the guide groove bracket 120 is more reliable, and the guide post assembly 140 is further prevented from being separated from the guide groove 121, so that the connection of the link 130 to the guide groove bracket 120 is more reliable.

In some embodiments of the present invention, as shown in fig. 3, 4 and 6, the guide groove bracket 120 is provided with a first mounting ear 122 and at least one second mounting ear 123, the outer peripheral surface of the fixing bracket 210 is provided with a supporting arm 212, the first mounting ear 122 is mounted on the outer peripheral surface of the fixing bracket 210, and the second mounting ear 123 is mounted on the supporting arm 212.

For example, the number of the second mounting ears 123 may be plural, and the plural second mounting ears 123 may be disposed at intervals along the extending direction of the guide slot bracket 120, so that the guide slot bracket 120 may be connected and fixed to the supporting arm 212 through the second mounting ears 123, so that plural portions of the guide slot bracket 120 may be fixed, and the guide slot bracket 120 may be more reliably fixed, and further, the first mounting ears 122 may be connected to the outer circumferential surface of the fixing bracket 210, that is, the guide slot bracket 120 may be directly connected to the fixing bracket 210, thereby further improving the connection strength between the guide slot bracket 120 and the fixing bracket 210, and further improving the connection reliability.

In some embodiments of the present invention, as shown in fig. 1-4, the support arm 212 includes a radial section 213 and an axial section 214.

The radial section 213 extends in the radial direction of the fixing bracket 210, the axial section 214 extends in the axial direction of the fixing bracket 210, and the axial section 214 and the radial section 213 are connected and extend from the radial section 213 to the audio-visual device 400, that is, the radial section 213 and the axial section 214 of the supporting arm 212 extend in the direction perpendicular to each other.

The second mounting lugs 123 are provided at intervals in the extending direction of the guide groove bracket 120, the second mounting lugs 123 include first sub-mounting lugs 124 and second sub-mounting lugs 125, the first sub-mounting lugs 124 are mounted on the radial segment 213, and the second sub-mounting lugs 125 are mounted on the axial segment 214.

Like this, radial section 213 can bear the atress along the radial direction of fixed bolster 210 more reliably, axial section 214 can bear the atress along the axial direction of fixed bolster 210 more reliably, so, be favorable to improving the structural strength of support arm 212, make the support atress effect of support arm 212 better, the damage of support arm 212 has been avoided, support arm 212 is more reliable and more stable to the fixed of guiding groove support 120, and, be connected with radial section 213 and axial section 214 of support arm 212 respectively through a plurality of second installation ears 123, can also avoid guiding groove support 120 to rotate for support arm 212.

In some embodiments of the present invention, as shown in fig. 3, fig. 4 and fig. 6, the guide groove 121 is configured to be arc-shaped, so that the included angle does not appear in the guide groove 121, the transition of the guide groove 121 is more gentle, the guide effect of the guide groove 121 on the other end of the connecting rod 130 is better, so that the guide post assembly 140 can slide more smoothly in the guide groove 121, the rotating mechanism 100 can rotate at a uniform speed, and further the audio-visual device 400 can rotate at a uniform speed, which is beneficial to reducing the impact force of the audio-visual device 400 during rotation.

And, the guide groove 121 and the rotation axis of the rotational bracket 110 are disposed in a staggered manner and protrude in a direction away from the rotation axis of the rotational bracket 110, so that the extension direction of the guide groove bracket 120 gradually leaves away from the telescopic shaft 220, the distance between the guide groove 121 and the rotation axis of the rotational bracket 110 gradually increases, and thus when the rotational bracket 110 moves along with the telescopic shaft 220, both ends of the connecting rod 130 can move asynchronously, at this time, the movement of the connecting rod 130 is a combined movement of translation and rotation around the rotation axis of the rotational bracket 110, so that the rotational bracket 110 can be driven by the connecting rod 130 to rotate, so that the audiovisual device 400 can rotate.

In some embodiments of the present invention, as shown in fig. 1 to 4, when the telescopic shaft 220 is retracted to the extreme position, the lower end of the guide groove 121 and the rotation axis of the rotation mechanism 100 are arranged at intervals along the axial direction of the telescopic shaft 220; when the telescopic shaft 220 is extended to the limit position, the upper end of the guide groove 121 and the rotation axis of the rotation mechanism 100 are arranged at intervals in the axial direction of the telescopic shaft 220.

In other words, when the telescopic shaft 220 retracts to the limit position and the telescopic shaft 220 extends to the limit position, the rotation range of the rotating bracket 110 is 90 degrees, the rotation angle of the rotating bracket 110 is larger, the rotation angle of the audio-visual device 400 is larger, the adjustment range is larger, and the rotating bracket 110 rotates 90 degrees to just rotate the audio-visual device 400 from the horizontal direction to the vertical direction or from the vertical direction to the horizontal direction, so that the situation that the audio-visual device 400 inclines at the limit position is avoided, the passenger can watch the audio-visual device 400 more conveniently, and the use experience of the passenger is further improved.

In some embodiments of the present invention, as shown in fig. 3 and 4, the connecting rod 130 is perpendicular to the rotation axis of the rotating bracket 110, and is disposed in an inclined manner relative to the rotation axis of the rotating bracket 110 relative to the connecting rod 130, so that the occupied space of the connecting rod 130 can be reduced, the connecting rod 130 is prevented from interfering with other components, and the size of the posture adjusting assembly 1 is reduced, and the assembly is more convenient.

Moreover, the connecting rod 130 extends beyond the outer circumferential surface of the rotating bracket 110, that is, the end of the connecting rod 130 connected to the guide groove 121 extends beyond the outer circumferential surface of the rotating bracket 110, which facilitates the connection of the connecting rod 130 to the guide groove 121 and prevents the guide groove bracket 120 from interfering with the rotating bracket 110 in position, so that the rotating bracket 110 can rotate normally, and the audiovisual device 400 can rotate more easily.

In some embodiments of the present invention, as shown in fig. 1-5, the drive mechanism 300 includes a drive member 310, a lead screw 320, and a lead screw nut 330. Wherein the driving member 310 may be a motor.

The driving member 310 is connected to the fixing bracket 210, the lead screw 320 is connected to the driving member 310, the driving member 310 drives the lead screw 320 to rotate, the lead screw nut 330 is in threaded connection with the lead screw 320 and is connected to the telescopic shaft 220, the lead screw 320 rotates to drive the lead screw nut 330 to move along the axial direction of the lead screw 320, so that the lead screw nut 330 drives the telescopic shaft 220 to extend and retract relative to the fixing bracket 210.

For example, the driving member 310 may be drivingly connected to one end of the screw 320, when the driving member 310 drives the screw 320 to rotate clockwise, the screw nut 330 may move in a direction approaching the driving member 310 along the axial direction of the screw 320, and when the driving stage drives the screw 320 to rotate counterclockwise, the screw nut 330 may move in a direction away from the driving member 310 along the axial direction of the screw 320.

Specifically, the screw 320 extends along the axial direction of the fixing bracket 210, and the screw nut 330 is connected to the telescopic shaft 220 and can rotate relative to the telescopic shaft 220, so that when the driving member 310 drives the screw 320 to rotate, since the position of the screw 320 in the axial direction does not change, the screw nut 330 can move along the axial direction of the screw 320, and further, the telescopic shaft 220 can be driven to move relative to the axial direction of the screw 320, thereby achieving the telescopic shaft 220.

In some embodiments of the present invention, as shown in fig. 1-5, the driving mechanism 300 further includes a lead screw limiting member 340.

The lead screw stopper 340 is connected to the lead screw 320 and located on a side of the lead screw nut 330 opposite to the driving member 310, for limiting a stroke of the lead screw nut 330. Therefore, when the telescopic shaft 220 extends, the lead screw nut 330 moves in a direction away from the driving member 310, and the lead screw nut 330 abuts against the lead screw limiting member 340, so that the lead screw nut 330 is prevented from being separated from the lead screw 320, and the lead screw nut 330 and the lead screw 320 are more reliably matched.

Wherein, it can be understood that lead screw locating part 340 can carry out the axial spacing to screw nut 330, and then prescribe a limit to the protrusion dimension of telescopic shaft 220, and simultaneously, flexible locating part 211 and spacing groove 221 cooperation also can carry on spacingly to the protrusion dimension of telescopic shaft 220, carry on spacingly to screw nut 330 through screw locating part 340, and carry on spacingly to telescopic shaft 220 through flexible locating part 211 and spacing groove 221, double guarantee has been realized, can be in order to avoid screw nut 330 to break away from lead screw 320, can spacing to the flexible scope of telescopic shaft 220 again, spacing effect is better.

In some embodiments of the present invention, as shown in fig. 5, the driving mechanism 300 further includes a nut bracket 350, the nut bracket 350 is respectively connected to the telescopic shaft 220 and the lead screw nut 330, and the lead screw nut 330 drives the telescopic shaft 220 to extend and retract relative to the fixed bracket 210 through the nut bracket 350.

That is to say, the telescopic shaft 220 is fixedly connected with the screw nut 330 through the nut bracket 350, the screw nut 330 is rotatably connected to the nut bracket 350, and when the screw nut 330 moves along the axial direction of the screw 320, the nut bracket 350 can be driven to move along the axial direction of the telescopic shaft 220, and then the telescopic shaft 220 can be driven to stretch and retract through the screw nut 330, and through additionally arranging the nut bracket 350, the screw nut 330 and the telescopic shaft 220 can be rotatably connected together, the connection process of the screw nut 330 and the telescopic shaft 220 can be simplified, the assembly is simpler, and the connection is more reliable.

For example, a portion of the nut bracket 350 may be sleeved on the telescopic shaft 220, and the nut bracket 350 and the telescopic shaft 220 may be fixed together by a bolt, so that the contact area between the nut bracket 350 and the telescopic shaft 220 may be increased, and the connection may be more reliable, so that the telescopic shaft 220 and the nut bracket 350 may move together.

Further, as shown in fig. 11, the nut holder 350 is provided with an opening 354, at least a part of the lead screw nut 330 is rotatably inserted into the opening 354, and the lead screw nut 330 is fixed to the nut holder 350 in the axial direction thereof.

For example, the nut bracket 350 may include a telescopic shaft connecting portion 351 and a nut connecting portion 352, the telescopic shaft connecting portion 351 may be sleeved on the telescopic shaft 220, a connecting area between the nut bracket 350 and the telescopic shaft 220 is increased, the nut connecting portion 352 is connected to an outer circumferential surface of the telescopic shaft connecting portion 351, the nut connecting portion 352 may be provided with an opening 354 on an outer circumferential surface thereof, the nut connecting portion 352 may be provided with a through hole 353 extending in an axial direction thereof, the opening 354 is communicated with the through hole 353, the lead screw nut 330 enters the through hole 353 from the opening 354, the lead screw 320 is inserted into the through hole 353, the nut connecting portion 352 and the lead screw nut 330 are limited in an axial direction of the lead screw nut 330, the lead screw 320 limits the lead screw nut 330 and the nut connecting portion 352 in a radial direction of the lead screw nut 330, the lead screw nut 330 may not be separated from the nut connecting portion 352 by the opening 354, thereby fixing the nut bracket 350 and the lead screw nut 330 together may be driven to move in the axial direction of the lead screw 320 when the lead screw 330 moves in the axial direction of the lead screw 320.

An on-vehicle audio-visual device 2 according to an embodiment of the present invention is described below with reference to the drawings, and the on-vehicle audio-visual device 2 includes an audio-visual device 400 and an attitude adjusting assembly 1 according to the above-described embodiment of the present invention.

According to the utility model discloses on-vehicle audio-visual equipment 2 is through utilizing according to the utility model discloses gesture adjusting part 1 of above-mentioned embodiment has advantages such as small, be convenient for assembly and suitability height.

The assembly steps of the audiovisual device 2 on board a vehicle are described by way of example with reference to the accompanying drawings:

firstly, the sliding sleeve ring 240 is installed in the fixed bracket 210, and the rotating mechanism 100 and the telescopic shaft 220 are fixedly connected together through screws;

secondly, the telescopic shaft 220 is installed in the fixed bracket 210, and the telescopic shaft 220 is limited by installing a telescopic limiting piece 211;

then, the guide groove bracket 120 is fixedly connected with the fixing bracket 210, the guide post 141 is installed in the guide groove 121, the guide post 141 is fixed with the guide groove bracket 120 through the guide nut 142, and the guide post 141 is fixedly connected with the connecting rod 130 of the rotating mechanism 100;

then, the screw 320 and the driving mechanism 300 are respectively fixedly connected with the fixed bracket 210, the screw nut 330 is arranged in the nut bracket 350 and connected with the screw 320, and the nut bracket 350 is fixedly connected with the telescopic shaft 220;

then, the preload member 230 is installed in the fixing bracket 210 to limit the radial direction of the telescopic shaft 220;

finally, the mounting bracket 150 is mounted on the audio-visual device 400 and fixed by screws, and then the mounting bracket 150 is fixedly connected to the rotating bracket 110, thereby completing the assembly.

The movement process of the vehicle-mounted audio-visual apparatus 2 is described below with reference to the accompanying drawings:

firstly, a user sends an instruction, the driving mechanism 300 operates and drives the screw 320 to rotate clockwise (or anticlockwise), so as to push the screw nut 330 to move along the axial direction of the screw 320 in a direction close to the driving mechanism 300 (or in a direction far away from the driving mechanism 300), and the screw nut 330 drives the nut bracket 350 and the telescopic shaft 220 to move together;

then, the telescopic shaft 220 drives the rotary bracket 110 and the audiovisual device 400 to move upwards (or downwards), and the connecting rod 130 of the rotary mechanism 100 moves along the guide slot 121 of the guide slot bracket 120;

finally, the connecting rod 130 drives the rotating bracket 110 to rotate, and the rotating bracket 110 drives the audiovisual device 400 to rotate from a horizontal uniform speed to a vertical direction (or from a vertical rotation to a horizontal direction), so as to realize the angle switching of the audiovisual device 400.

In some embodiments of the present invention, as shown in fig. 1 and fig. 2, the central axis of the audiovisual equipment 400 is parallel to the rotation axis of the rotating mechanism 100, so that the rotating mechanism 100 can prevent the audiovisual equipment 400 from tilting when the rotating mechanism 100 drives the audiovisual equipment 400 to rotate, which is convenient for fixing the position of the audiovisual equipment 400, and the user can watch more conveniently.

For example, the central axis of the audiovisual device 400 may coincide with the rotation axis of the rotation mechanism 100, so that the audiovisual device 400 may be prevented from being biased to one side of the rotation mechanism 100, which is beneficial to maintaining the balance of the audiovisual device 400, and the audiovisual device 400 may be easily fixed by the rotation mechanism 100, and the audiovisual device 400 may not be shifted when rotating, and may rotate more smoothly.

Further, by allowing the center axis of the audio-visual device 400 to coincide with the rotation axis of the rotation mechanism 100, it is convenient to fix the position of the audio-visual device 400 so that the distance from the audio-visual device 400 to the main driver is the same as the distance from the audio-visual device 400 to the sub-driver, and the passenger can feel better.

A vehicle according to an embodiment of the present invention, which includes the vehicle-mounted audio-visual device 2 according to the above-described embodiment of the present invention, is described below with reference to the drawings.

According to the utility model discloses vehicle, through utilizing according to the utility model discloses on-vehicle audio-visual equipment 2 of above-mentioned embodiment has advantages such as small, be convenient for assembly and suitability height.

Other configurations and operations of the attitude adjusting assembly 1, the in-vehicle display apparatus, and the vehicle according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (15)

1. An attitude adjustment assembly for use in an audiovisual device mounted on a vehicle, comprising:

the rotary mechanism is suitable for fixing the audio-visual equipment and drives the audio-visual equipment to rotate;

the telescopic mechanism is rotatably connected with the telescopic mechanism, the telescopic mechanism drives the audio-visual equipment to stretch through the rotary mechanism, and the telescopic mechanism drives the rotary mechanism to rotate through self stretching;

and the driving mechanism is connected with the telescopic mechanism and drives the telescopic mechanism to stretch.

2. The attitude adjustment assembly of claim 1, wherein a telescoping direction of the telescoping mechanism is not parallel to a rotational axis of the rotary mechanism.

3. The attitude adjustment assembly of claim 1, wherein a telescoping direction of the telescoping mechanism is perpendicular to a rotational axis of the rotary mechanism.

4. The attitude adjustment assembly of claim 1, wherein the telescoping mechanism includes:

the rotating mechanism is movably connected with the fixed bracket;

the telescopic shaft is connected with the fixed bracket in a sliding mode, and the rotating mechanism is connected with the telescopic shaft in a rotating mode;

when the telescopic shaft slides relative to the fixed support, the fixed support pushes the rotating mechanism to move relative to the fixed support and rotate relative to the telescopic shaft.

5. The attitude adjustment assembly of claim 4, wherein said telescoping mechanism further comprises:

at least one preload member provided between an inner peripheral surface of the fixing bracket and an outer peripheral surface of the telescopic shaft to fix positions of the fixing bracket and the telescopic shaft in a radial direction of the telescopic shaft.

6. The attitude adjustment assembly of claim 4, wherein the telescoping mechanism further comprises:

and the sliding lantern ring is arranged on the inner peripheral surface of the fixed support and is slidably sleeved on the outer peripheral surface of the telescopic shaft.

7. The attitude adjustment assembly of claim 4, wherein the telescoping mechanism further comprises:

the telescopic limiting part is installed in the fixed support and one of the telescopic shafts, the fixed support and the other of the telescopic shafts are provided with a limiting groove, and the telescopic limiting part slides in the limiting groove to limit the sliding range of the telescopic shaft relative to the fixed support.

8. The attitude adjustment assembly of claim 4, wherein the rotation mechanism comprises:

a rotating bracket rotatably connected with the telescopic shaft, the rotating bracket being adapted to the stationary audio-visual device;

a guide groove bracket mounted to the fixed bracket and having a guide groove;

and one end of the connecting rod is connected with the rotating bracket, and the other end of the connecting rod is connected with the guide groove in a sliding manner.

9. The attitude adjustment assembly of claim 8, wherein the rotation mechanism further comprises:

the other end of the connecting rod is connected with the guide groove in a sliding mode through the guide column assembly, and the guide column assembly is installed on the other end of the connecting rod and stretches into the guide groove in a sliding mode.

10. The attitude adjustment assembly according to claim 8, wherein the guide groove bracket is provided with a first mounting lug and at least one second mounting lug, the outer peripheral surface of the fixed bracket is provided with a support arm, the first mounting lug is mounted to the outer peripheral surface of the fixed bracket, and the second mounting lug is mounted to the support arm;

the supporting arm comprises a radial section and an axial section, the radial section extends along the radial direction of the fixed support, the axial section extends along the axial direction of the fixed support, and the axial section is connected with the radial section and extends from the radial section to the audio-visual device;

the second installation ear is for following a plurality of that the extending direction interval of guide way support set up, and is a plurality of the second installation ear includes first sub-installation ear and the sub-installation ear of second, first sub-installation ear install in radial section, the sub-installation ear of second install in axial section.

11. The attitude adjustment assembly according to claim 8, wherein the guide groove is configured in an arc shape, the guide groove being disposed offset from the rotational axis of the rotational bracket and projecting in a direction away from the rotational axis of the rotational bracket;

when the telescopic shaft retracts to the limit position, the lower end of the guide groove and the rotating axis of the rotating mechanism are arranged at intervals along the axial direction of the telescopic shaft;

when the telescopic shaft extends to the limit position, the upper end of the guide groove and the rotating axis of the rotating mechanism are arranged at intervals along the radial direction of the telescopic shaft;

the link is perpendicular to the rotational axis of the rotating bracket.

12. The attitude adjustment assembly of claim 4, wherein the drive mechanism includes:

the driving piece is connected with the fixed bracket;

the screw rod is connected with the driving piece, and the driving piece drives the screw rod to rotate;

the screw rod nut is in threaded connection with the screw rod and is connected with the telescopic shaft, and the screw rod rotates to drive the screw rod nut to move along the axial direction of the screw rod, so that the screw rod nut drives the telescopic shaft to stretch relative to the fixed support;

the screw rod limiting piece is connected with the screw rod, is positioned on one side of the screw rod nut, which is back to the driving piece, and is used for limiting the stroke of the screw rod nut;

the nut support is respectively connected with the telescopic shaft and the lead screw nut, and the lead screw nut drives the telescopic shaft to stretch relative to the fixed support through the nut support.

13. An audiovisual device for a vehicle, comprising:

an audio-visual device;

the attitude adjustment assembly of any one of claims 1-12.

14. The vehicle audio-visual apparatus according to claim 13, characterized in that a center axis of the audio-visual apparatus is parallel to a rotation axis of the rotation mechanism.

15. A vehicle characterized by comprising the in-vehicle audio-visual apparatus according to claim 13 or 14.

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