CN220163782U

CN220163782U - Screen adjustment mechanism

Info

Publication number: CN220163782U
Application number: CN202321484565.2U
Authority: CN
Inventors: 唐勋
Original assignee: Yanfeng International Automotive Technology Co Ltd
Current assignee: Yanfeng International Automotive Technology Co Ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-12-12
Anticipated expiration: 2033-06-12

Abstract

The utility model discloses a screen adjusting mechanism, comprising: the device comprises a base, a rocker arm and a rocker arm overturning mechanism, wherein the base is connected with an external base, the rocker arm is hinged on the base, and the rocker arm overturning mechanism is used for driving the rocker arm to overturn; the rocker arm overturning mechanism drives the rocker arm to overturn, and then drives the screen to adjust the pitching angle. The rocker arm is matched with the rocker arm overturning mechanism, can be used as a supporting piece for supporting a screen, can also be used as a pushing piece for adjusting the pitching rotation angle of the screen, and has a simple structure.

Description

Screen adjustment mechanism

Technical Field

The utility model relates to the field of equipment fixing/supporting, in particular to a screen adjusting mechanism.

Background

Along with popularization of intelligent cabin concepts of passenger cars, more and more car type central control begins to configure large-size multimedia display equipment with changeable visual angles.

As disclosed in chinese patent publication No. CN217603729U, a screen adjusting mechanism, a display device and a vehicle, the relative positions of the upper and lower parts of the display device are changed by a rod-shaped fixed support and a telescopic support disposed at the rear of the display device, thereby achieving adjustment of the pitch angle.

As disclosed in chinese patent application publication No. CN113968190a, in an intelligent vehicle screen adjusting system, 3 telescopic push rods with triangular planes behind a display device make the screen have a rotation function of two degrees of freedom of pitching/left and right.

The structure adopts the rod piece to directly push the object to rotate around the hinge point, the pitching rotation angle is limited by the length of the rod piece, and the problem that the size of parts is greatly unfavorable for the spatial arrangement of the whole vehicle and the mechanism is complex exists.

Disclosure of Invention

The utility model aims to solve the technical problem that the existing screen adjusting mechanism is complex in structure and needs at least one supporting part and one pushing part to realize screen adjustment, and provides the screen adjusting mechanism which is simple in structure and realizes screen pitching adjustment.

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

a screen adjustment mechanism comprising:

a base for connection with an external base body,

the rocker arm is hinged on the base, is connected with the screen and drives the screen to adjust the pitching angle;

and the rocker arm turnover mechanism drives the rocker arm to turn over, and the rocker arm turnover mechanism drives the rocker arm to turn over so as to drive the screen to adjust the pitching angle.

In a preferred embodiment of the present utility model, the rocker arm tilting mechanism comprises:

the driving unit is arranged on the base and provided with a screw rod;

the sliding nut is screwed on the screw rod, the screw rod rotates, and the sliding nut rotates relative to the screw rod on one hand and performs reciprocating linear motion relative to the base on the other hand; in the reciprocating rectilinear motion process, the sliding nut drives the rocker arm to overturn so as to drive the screen to adjust the pitching angle.

In a preferred embodiment of the present utility model, the rocker arm tilting mechanism further comprises:

and one end of the connecting rod is hinged with the rocker arm, and the other end of the connecting rod is hinged with the sliding nut.

In a preferred embodiment of the present utility model, the screen further comprises a guide structure disposed between the base and the sliding nut, the guide structure being used for limiting the movement stroke of the sliding nut and further limiting the pitching angle of the screen.

In a preferred embodiment of the utility model, the guiding structure comprises:

a protrusion disposed on the slip nut;

the protruding part is arranged in the kidney-shaped groove in a sliding mode.

In a preferred embodiment of the utility model, when the sliding nut is positioned at the first end of the kidney-shaped groove, the screen is positioned at the maximum elevation angle, and the distance between the sliding nut and the root of the screw rod is the minimum; when the sliding nut is positioned at the second end of the kidney-shaped groove, the screen is positioned at the maximum depression angle, and the distance between the sliding nut and the root of the screw rod is the maximum; the screw rod drives the sliding nut to conduct reciprocating linear motion, so that the sliding nut slides between the first end and the second end of the kidney-shaped groove, and pitching angle adjustment is conducted on the screen.

In a preferred embodiment of the utility model, the main body of the base is L-shaped, a screw rod hole is formed in a vertical plate of the L shape, two ends of a transverse plate of the L shape are provided with lugs, and the lugs are provided with holes which are also used as fixing points; a guide plate connected with the L-shaped vertical plate and the transverse plate is arranged in the middle of the L-shape; the kidney slot is arranged on the guide plate.

In a preferred embodiment of the present utility model, a surface of the slip nut abuts against the guide plate, and the guide plate restricts the slip nut from reciprocating rectilinear motion relative to the base.

In a preferred embodiment of the present utility model, the main body of the rocker arm is in a U shape, a connecting part is arranged in the middle of the bottom wall of the U shape, the connecting part and the connecting rod are connected at two side walls of the U shape, a hole of a rotation point and a lug are respectively arranged, each lug is provided with a hole, and two lugs are used for installing a screen.

In a preferred embodiment of the utility model, the drive unit further comprises a motor; and/or the driving unit comprises a motor and a gear box, wherein the motor is connected with an input shaft of the gear box, and an output shaft of the gear box is used for driving the screw rod to rotate.

The utility model has the beneficial effects that:

the screen adjusting mechanism provided by the utility model has the advantages that firstly, the screen supporting part and the pushing part are combined into a whole, so that the structure is simplified; secondly, the screen pitching rotation angle adjustment is realized by adopting the cooperation of a rocker arm and a linear motion mechanism; the third connecting rod can compensate the change of the vertical distance of the fixed connecting point after the angle of the screen is changed; the fourth way is to use a guiding structure to provide guiding for the sliding nut and to provide a running stop.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is an overall schematic of the present utility model.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is an enlarged view of a portion of another view of fig. 1.

Fig. 4 is a top cross-sectional view of the present utility model.

Fig. 5a is a schematic view of the positions of the link members and the rotating frame in the initial state of the present utility model.

Fig. 5b is a schematic view of the positions of the link members and the swivel mount in the elevation state of the present utility model.

Fig. 5c is a schematic view of the positions of the link members and the rotating frame in the depression angle state of the present utility model.

Fig. 6a is an overall schematic diagram of the state of fig. 5 a.

Fig. 6b is an overall schematic diagram in the state of fig. 5 b.

Fig. 6c is an overall schematic diagram in the state of fig. 5 c.

Detailed Description

In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, and that the longitudinal (X-direction) "" lateral (Y-direction) "" vertical (Z-direction) "is a spatial coordinate system term of the automotive field, are terms of art well known to those skilled in the art, and the above description is for convenience of description of the present utility model, not for indicating or implying that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

The use of the terms "comprising," "including," and "containing" in the specification mean that the recited features are present, but that one or more other features are not excluded. The use of the phrase "and/or" in the specification includes any and all combinations of one or more of the associated listed items.

In the description, when an element is referred to as being "on," "secured" to, "connected" to another element, it can be directly on, secured to, connected to or contacting the other element or intervening elements may be present. In the specification, one feature being disposed "adjacent" another feature may refer to a feature having a portion that overlaps or is located above or below the adjacent feature.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Thus, a first element could be termed a second element without departing from the teachings of the present inventive concept.

Exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood, however, that the utility model may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide yet additional embodiments. Throughout the drawings, like reference numbers indicate identical or functionally identical elements.

A screen adjustment mechanism as illustrated with reference to fig. 1 and 2, comprising: a rocker arm 40 for connecting the screen 1, a base 20, a driving unit 10, a screw 11, a slide nut 32, and a link 31.

The base 20 is connected to an external base connection in the vehicle, such as an instrument desk or armrest box. The main body of the base 20 is L-shaped, a screw rod hole 24 is formed in an L-shaped vertical plate 23, lugs 26 are arranged at two ends of an L-shaped transverse plate 25, and holes serving as fixing points 22 are formed in the lugs 26. A guide plate 27 is provided in the middle of the L-shape and connected to the L-shaped risers 23 and cross plates 25.

The driving unit 10 is mounted on an L-shaped riser 23 by means of fasteners such as two bolts 10a, and a screw 11 driven to rotate by the driving unit 10 passes through a screw hole 24. The slip nut 32 is coupled to a drive unit 10 for self-service or passive movement.

The body of the rocker arm 40 has a U-shape, a connecting portion 41 is provided in the middle of a bottom wall 42 of the U-shape, a hole for a rotation point 43 and a lug 45 are provided on both side walls 44 of the U-shape, and a hole is provided on each lug 45, and two lugs 45 are used for mounting the screen 1.

The rocker arm 40 is hinged on the base 20, specifically: by means of the hole pin structure between the fixing point 22 and the rotation point 43, the swing arm 40 is rotated about the base 20 with reference to the rotation point 43.

The power for rotating the rocker arm 40 about the base 20 with reference to the rotation point 43 is derived from the slide nut 32 and the link 31 (of course, it may be derived from only the slide nut 32, and the rocker arm 40 may be driven by linear movement of the slide nut 32).

The guide plate 27 on the base 20 is adjacent to the slide nut 32, and is provided with a kidney-shaped groove 21, and a first shaft 32a (the aforementioned protruding portion) protruding from the side portion of the slide nut 32 and the kidney-shaped groove 21 form a guide structure (needless to say, a kidney-shaped groove may be provided on the side portion of the slide nut 32, and the first shaft 32a may be provided on the guide plate 27 on the base 20), and the slide nut 32 is limited to move in only 1 degree of freedom (only move along the parallel kidney-shaped groove 21, and only be provided because the slide nut 32 cannot rotate due to the limitation of the kidney-shaped groove 21) by the kidney-shaped groove 21. The first end 31a of the link 31 is connected to the connecting portion 41 by the pin 33, and the second end 31b is connected to the slip nut 32 by a hole shaft structure, thereby functioning as a transmission member between the slip nut 32 and the rocker arm 40.

In combination with the respective motion states illustrated with reference to fig. 4 to 6c, when the display apparatus 1 is in the initial state, the first axis 32a is located between the two ends of the kidney-shaped groove 21, and the shortest distance between the connection portion 41 and the rotation point 43 is L. When the screen 1 is in the maximum reclined position, the slip nut 32 is positioned at one end of the kidney slot 21 and the connecting portion 41 is pulled to rotate the swing arm 40 upwardly about the rotation point 43. The vertical distance between the connection 41 and the rotation point 43 is L1, L1 < L. When the screen 1 is in the maximally depressed state, the slip nut 32 is positioned at the other end of the kidney-shaped groove 21, and the connection portion 41 is pulled to rotate the rotating frame 40 downward about the rotation point 43. The vertical distance between the connection 41 and the rotation point 43 is L2, L2 < L.

In one embodiment, the slide nut 32 is provided with a second shaft 32b on the other side, and is connected to the second end 31b of the link 31 by a hole shaft through the second shaft 32 b.

In one embodiment, the driving unit 10 is a combination of a motor and a gear box, a screw rod 11 is connected to an output shaft of the gear box, and a screw rod nut structure is formed by the screw rod 11 and the sliding nut 32 to drive the sliding nut 32 to actively move along the kidney-shaped groove 21 and provide a locking function. The slip nut 32 may have an abutment surface that engages the base 20 to prevent rotation of the guide member 32 when driven by the lead screw.

In one embodiment, the drive unit 10 is coupled to the slip nut 32 as a damping mechanism providing braking force and/or locking function, pushing the slip nut 32 along the kidney slot 21 by manual operation of the rocker arm 40.

Claims

1. A screen adjustment mechanism, comprising:

a base for connection with an external substrate;

2. A screen adjustment mechanism as recited in claim 1, wherein said rocker arm tilt mechanism comprises:

the driving unit is arranged on the base and comprises a screw rod;

3. The screen adjustment mechanism of claim 2, wherein the rocker arm tilt mechanism further comprises:

4. A screen adjustment mechanism as recited in claim 3, further comprising a guide structure disposed between the base and the slip nut for limiting the travel of the slip nut and thereby limiting the pitch angle of the screen.

5. A screen adjustment mechanism as recited in claim 4, wherein said guide structure includes:

a protrusion disposed on the slip nut;

the protruding part is arranged in the kidney-shaped groove in a sliding way, so that the movement stroke of the sliding nut is limited, and the pitching angle of the screen is further limited.

6. The screen adjustment mechanism of claim 5, wherein the screen is at a maximum elevation angle when the slip nut is positioned at the first end of the kidney-shaped slot, the slip nut being at a minimum distance from the root of the screw; when the sliding nut is positioned at the second end of the kidney-shaped groove, the screen is positioned at the maximum depression angle, and the distance between the sliding nut and the root of the screw rod is the maximum; the screw rod drives the sliding nut to conduct reciprocating linear motion, so that the sliding nut slides between the first end and the second end of the kidney-shaped groove, and pitching angle adjustment is conducted on the screen.

7. The screen adjusting mechanism according to claim 5, wherein the main body of the base is L-shaped, a screw rod hole is formed in a vertical plate of the L shape, two lugs are arranged at two ends of a transverse plate of the L shape, and holes which are also used as fixing points are formed in the lugs; a guide plate connected with the L-shaped vertical plate and the transverse plate is arranged in the middle of the L-shape; the kidney slot is arranged on the guide plate.

8. The screen adjustment mechanism of claim 7, wherein a surface of the slip nut abuts the guide plate, the guide plate limiting the back and forth linear movement of the slip nut relative to the base.

9. The screen adjusting mechanism as set forth in claim 7, wherein the main body of the rocker arm is U-shaped, a connecting portion is provided at a middle position of a bottom wall of the U-shape, the connecting portion and the connecting rod are connected to each of two side walls of the U-shape, a hole of a rotation point and a lug are provided, each lug is provided with a hole, and the two lugs are used for mounting the screen.

10. A screen adjustment mechanism according to any one of claims 2 to 9, wherein the drive unit further comprises a motor; and/or the driving unit comprises a motor and a gear box, wherein the motor is connected with an input shaft of the gear box, and an output shaft of the gear box is used for driving the screw rod to rotate.