CN207683450U - The connecting mechanism for rotating of vehicle-carrying display screen and vehicle with it - Google Patents

Abstract

The utility model discloses a kind of connecting mechanism for rotating of vehicle-carrying display screen and with its vehicle.Connecting mechanism for rotating includes：Shield connecting bracket, screen connecting bracket is suitable for being located at the back side of vehicle-carrying display screen, and screen connecting bracket is equipped with threaded hole；Rotary fixed bracket assembly, rotary fixed bracket assembly include screen after-poppet, and screen after-poppet is equipped with perforation, shields the threaded hole in the perforation face screen connecting bracket on after-poppet；Attachment screw, attachment screw cooperation is in perforation and is fixed on threaded hole；Wherein, screen after-poppet is equipped with guide pipe.The connecting mechanism for rotating of vehicle-carrying display screen according to the present utility model, by the way that guide pipe is arranged in the both sides of screen after-poppet, when shielding assembly and rotary fixed bracket general assembly, directly attachment screw can be placed in guide pipe, guide pipe can facilitate attachment screw to be aligned with perforation and threaded hole, therefore it can facilitate the installation of attachment screw, it is possible thereby to promote the efficiency of assembling of the connecting mechanism for rotating of vehicle-carrying display screen.

Description

Rotary connection mechanism of vehicle-mounted display screen and vehicle with same

Technical Field

The utility model belongs to the technical field of the transportation vehicle and specifically relates to a rotary connection mechanism of on-vehicle display screen and vehicle that has it is related to.

Background

The existing vehicle-mounted display screen is generally fixed on the screen connecting support through screws to form a screen assembly, and then the screen assembly is fixed on the rotary fixing support through screws. Because the rotary fixing support needs to be installed on the instrument desk in advance, when the screen assembly is assembled with the rotary fixing support, the visual area range of assembly operation is very small, the rotary fixing support is almost invisible, and the rotary fixing support is not beneficial to actual operation. And the screw does not have guider when screen assembly and rotatory fixed bolster assemble, is unfavorable for the alignment of the screw hole on screen assembly and the rotatory fixed bolster, has seriously influenced assembly efficiency.

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, the utility model provides a rotary connection mechanism of vehicle-mounted display screen, rotary connection mechanism has simple structure, convenient operation's advantage.

The utility model also provides a vehicle of swivelling joint mechanism with above-mentioned vehicle-mounted display screen.

According to the utility model discloses on-vehicle display screen's swivelling joint mechanism, include: the screen connecting support is suitable for being arranged on the back surface of the vehicle-mounted display screen, and a threaded hole is formed in the screen connecting support; the rotary fixing support assembly comprises a screen rear support, a through hole is formed in the screen rear support, the back face of the vehicle-mounted display screen is suitable for being arranged towards the rotary fixing support assembly, the through hole in the screen rear support is over against the threaded hole in the screen connecting support, and the through hole is located on one side, facing the edge of the vehicle-mounted display screen, of the threaded hole; the connecting screw is matched in the through hole and fixed on the threaded hole; the screen rear support is provided with a guide pipe used for guiding the installation of the connecting screw, and the guide pipe is located on one side of the threaded hole, away from the through hole.

According to the utility model discloses on-vehicle display screen's swivelling joint mechanism sets up the stand pipe through the both sides at the screen after-poppet, when screen assembly and rotatory fixed bolster assembly, can directly place connecting screw in the stand pipe, the stand pipe can make things convenient for connecting screw and perforation and screw hole to aim at, consequently can make things convenient for connecting screw's installation, can promote on-vehicle display screen's swivelling joint mechanism's assembly efficiency from this.

According to the utility model discloses the vehicle, include according to the utility model discloses the vehicle-mounted display screen's of above-mentioned embodiment swivelling joint mechanism.

According to the utility model discloses vehicle, through setting up above-mentioned swivelling joint mechanism, the both sides of swivelling joint mechanism's screen after-poppet set up the stand pipe, when screen assembly and rotatory fixed bolster assembly, can directly place connecting screw in the stand pipe, the stand pipe can make things convenient for connecting screw and perforation and screw hole to aim at, consequently can make things convenient for connecting screw's installation, can promote vehicle-mounted display screen's swivelling joint mechanism's assembly efficiency from this.

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 an assembly structure diagram of a rotary connection mechanism of a vehicle-mounted display screen according to an embodiment of the present invention;

fig. 2 is a schematic view of the overall structure of a screen assembly according to an embodiment of the present invention;

fig. 3 is a schematic view of the overall structure of a rotating fixed bracket assembly according to an embodiment of the present invention;

FIG. 4 is a bottom view of the rotating fixed bracket assembly shown in FIG. 3;

fig. 5 is a schematic overall structure diagram of a screen rear bracket according to an embodiment of the present invention;

FIG. 6 is an enlarged partial schematic view of the portion A shown in FIG. 5;

fig. 7 is a schematic view of the overall structure of a connection screw according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of the attachment screw shown in FIG. 7;

fig. 9 is a schematic view of an assembly structure of a screen rear bracket and a connecting screw according to an embodiment of the present invention;

FIG. 10 is a sectional view taken in the direction B-B in FIG. 9;

fig. 11 is a partially enlarged schematic view of a portion indicated by C in fig. 10.

Reference numerals:

the rotational coupling mechanism (100) is rotated,

the screen assembly 1, the vehicle-mounted display screen 11, the screen connecting bracket 12, the threaded hole 121, the clamping groove 122 and the connecting piece 133,

the rotary fixing bracket assembly 2, the screen rear bracket 21, the through hole 211, the guide tube 212, the limiting structure 213, the protrusion 213a, the elastic arm 213b, the L-shaped connecting plate 214, the first connecting plate 214a, the second connecting plate 214b, the latch 215, the rotating shaft 22,

connecting screw 3, groove 31.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 11, a rotary connection mechanism 100 of an on-vehicle display screen according to an embodiment of the present invention will be described, and the rotary connection mechanism 100 may be used in a vehicle.

As shown in fig. 1 to 11, the rotary connection mechanism 100 of the vehicle-mounted display screen according to the embodiment of the present invention includes: screen linking bridge 12, rotatory fixed bolster assembly 2 and connecting screw 3. As shown in fig. 2, the screen connecting bracket 12 is adapted to be provided on the back surface of the in-vehicle display screen 11, and the screen connecting bracket 12 is provided with a screw hole 121. Specifically, the vehicle-mounted display screen 11 and the screen connecting bracket 12 form the screen assembly 1 of the rotary connecting mechanism 100, wherein the screen connecting bracket 12 is located on the back of the vehicle-mounted display screen 11. The vehicle-mounted display screen 11 and the screen connecting bracket 12 are connected together by a connecting piece 133. Alternatively, the connecting member 133 may be a screw.

As shown in fig. 1 to 3, the screen connecting bracket 12 and the rotary fixing bracket assembly 2 constitute a rotary connecting mechanism 100 of the vehicle-mounted display screen. The rotary fixing bracket assembly 2 comprises a screen rear bracket 21 and a rotating shaft 22. The screen rear bracket 21 is fixed with the rotating shaft 22, and the rotating shaft 22 can drive the screen rear bracket 21 to rotate. Alternatively, an interference fit may be used between the shaft 22 and the rear panel support 21. As shown in fig. 1, a through hole 211 is formed in the screen rear bracket 21, the back surface of the vehicle-mounted display screen 11 is arranged toward the rotary fixing bracket assembly 2, the through hole 211 in the screen rear bracket 21 is opposite to the threaded hole 121 in the screen connecting bracket 12, the through hole 211 is located on one side of the threaded hole 121 facing the edge of the vehicle-mounted display screen 11, and the connecting screw 3 is fitted in the through hole 211 and fixed on the threaded hole 121.

Specifically, for example, as shown in fig. 3, two through holes 211 are provided in the panel rear bracket 21, and the two through holes 211 are located on both left and right sides of the panel rear bracket 21. Two threaded holes 121 are provided in the screen attachment bracket 12. When the rotary connecting mechanism 100 is assembled, the screen assembly 1 is connected with the rotary fixing support assembly 2, the back surface of the vehicle-mounted display screen 11 is arranged towards the rotary fixing support assembly 2, two through holes 211 in the screen rear support 21 are in one-to-one correspondence with two threaded holes 121 in the screen connecting support 12, and the through holes 211 are located on the outer sides of the threaded holes 121. After the through holes 211 are aligned with the threaded holes 121, the connection screws 3 are respectively inserted through the corresponding through holes 211 and threaded holes 121 from the left and right sides to fix the screen assembly 1 and the rotary fixing bracket assembly 2 together. The user can rotate the rotary connection mechanism 100 according to actual requirements to enable the vehicle-mounted display screen 11 to be at a certain angle.

As shown in fig. 4-6, a guide tube 212 for installing and guiding the connection screw 3 is disposed on the screen rear bracket 21, and the guide tube 212 is located on a side of the through hole 211 away from the threaded hole 121. Specifically, for example, as shown in fig. 5, the panel rear bracket 21 has a substantially circular ring shape, and two guide pipes 212 are provided on the panel rear bracket 21, and the two guide pipes 212 are located at both ends of the circular ring portion of the panel rear bracket 21. Both guide tubes 212 are semi-cylindrical with the open ends of the semi-cylinders facing the direction of operation by the user. The through hole 211 is provided on the circular ring portion of the screen rear bracket 21 to be opposite to the guide pipe 212. When the screen assembly 1 and the rotary fixing bracket assembly 2 are assembled, since the rotary fixing bracket assembly 2 is in an inclined state, the connection screw 3 is not easily aligned with the through hole 211 and the threaded hole 121, and the assembling efficiency is seriously affected. The guide tube 212 can play a role in guiding the connecting screw 3, the connecting screw 3 can be directly placed in the guide tube 212, and the guide tube 212 can enable the connecting screw 3 to be automatically aligned with the through hole 211 and the threaded hole 121, so that the connecting screw 3 can be conveniently installed, and the assembling efficiency is improved.

According to the utility model discloses on-vehicle display screen's swivelling joint mechanism 100 sets up stand pipe 212 through the both sides at screen after-poppet 21, when screen assembly 1 and rotatory fixed bolster assembly 2 assembly, can directly place connecting screw 3 in stand pipe 212, stand pipe 212 can make things convenient for connecting screw 3 to aim at with perforation 211 and screw hole 121, consequently can make things convenient for connecting screw 3's installation, can promote on-vehicle display screen 11's swivelling joint mechanism 100's assembly efficiency from this.

As shown in fig. 5-6, according to some embodiments of the present invention, the screen rear bracket 21 is provided with a pre-fixing limiting structure 213 before the connection screw 3 is installed, so that the connection screw 3 can be conveniently aligned with the through hole 211 and the threaded hole 121, thereby improving the assembly efficiency of the rotary connection mechanism 100 of the vehicle-mounted display screen. Specifically, the limit structures 213 are disposed on the inner circumferential wall of the guide tube 212, and the limit structures 213 may fix the connection screws 3, and the connection screws 3 may be pre-fixed in the guide tube 212 in advance by the limit structures 213 before the screen rear bracket 21 is assembled with the screen connection bracket 12. When the screen rear support 21 is assembled with the screen connecting support 12, the connecting screw 3 can be directly screwed, so that the assembly process can be simplified, and the assembly efficiency can be improved.

As shown in fig. 5 to 6, in some embodiments of the present invention, the limiting structure 213 includes a protrusion 213a formed in the guide tube 212 to clamp the connection screw 3, so that the structure of the limiting structure 213 can be simpler, and the fixing of the limiting structure 213 to the connection screw 3 can be facilitated. Specifically, as shown in fig. 6, for example, each of the stopper structures 213 includes two protrusions 213a, and the two protrusions 213a are disposed in the guide tube 212 and located at both sides of the inner wall of the guide tube 212. When the limiting structure 213 fixes the connection screw 3, the protrusions 213a on both sides respectively stop against the connection screw 3, thereby fixing the position of the connection screw 3.

As shown in fig. 7-8, in some embodiments of the present invention, the outer circumferential surface of the connection screw 3 is provided with a groove 31 engaged with the protrusion 213a, so that the engagement between the connection screw 3 and the limiting structure 213 can be more reliable. Specifically, when the limiting structure 213 fixes the connection screw 3, the protrusion 213a of the limiting structure 213 is caught in the groove 31 of the connection screw 3, so that the connection screw 3 can be prevented from slipping off during the assembly process.

Further, as shown in fig. 7 to 8, the recess 31 is formed in the head of the coupling screw 3, and the recess 31 is formed as an annular groove provided around the axis of the coupling screw 3, and since the head of the coupling screw 3 is thick, the provision of the recess 31 in the head of the coupling screw 3 does not affect the overall rigidity of the coupling screw 3. Specifically, as shown in fig. 10 to 11, the protrusion 213a is clamped in the groove 31 of the head of the connection screw 3, the groove 31 is configured as an annular groove, and the connection screw 3 can rotate relative to the protrusion 213a, so that the connection screw 3 is clamped in the guide tube 212 without being limited by an angle, thereby facilitating the pre-fixing of the connection screw 3. And the annular groove 31 can facilitate the detachment of the connection screw 3, for example, the guide tube 212 is semi-cylindrical, the open space of the guide tube 212 is arranged towards the operation direction, the user can directly take out the connection screw 3 from the guide tube 212, and since the groove 31 is annular, the connection screw 3 is not hindered by the protrusion 213a when being taken out from the guide tube 212, thereby facilitating the actual operation.

As shown in fig. 5-6, in some embodiments of the present invention, the position-limiting structure 213 further includes an elastic arm 213b connected between the inner peripheral wall of the guiding tube 212 and the protrusion 213a, so that the position-limiting structure 213 can perform a better position-limiting function. Specifically, as shown in fig. 6, for example, the position limiting structure 213 includes a protrusion 213a and an elastic arm 213b, one end of the elastic arm 213b is connected to the inner peripheral wall of the guide tube 212, the other end of the elastic arm 213b is connected to the protrusion 213a, and the elastic arm 213b can extend and contract. When assembling the rear panel bracket 21 and the panel connection bracket 12, the connection screw 3 is rotated to pass through the through hole 211 and the screw hole 121 to connect the rear panel bracket 21 and the panel connection bracket 12 together. During the screwing connection of the connection screw 3 with the threaded hole 121, the elastic arm 213b can be elastically deformed so that the protrusion 213a can move toward the through hole 211 along with the connection screw 3, thereby facilitating the assembly of the connection screw 3.

As shown in fig. 3-5 and 9, according to some embodiments of the present invention, an L-shaped connecting plate 214 is disposed on the panel rear bracket 21, the L-shaped connecting plate 214 has a first connecting plate 214a and a second connecting plate 214b perpendicular to each other, the through hole 211 is disposed on the first connecting plate 214a, one end of the guide tube 212 is connected to the first connecting plate 214a, the peripheral wall of the guide tube 212 is connected to the second connecting plate 214b, and the back surface of the vehicle-mounted display panel 11 is adapted to abut against the second connecting plate 214b, so that the panel assembly 1 and the rotation fixing bracket assembly 2 can be more firmly engaged with each other.

For example, as shown in fig. 5, two L-shaped links 214 of the panel rear bracket 21 are connected to the outer side wall of the circular ring portion of the panel rear bracket 21, and each of the L-shaped links 214 has a first link 214a and a second link 214b perpendicular to each other, in which the closed end of the guide tube 212 is connected to one side of the second link plate. When the panel assembly 1 is assembled with the rear panel bracket 21, the in-vehicle display panel 11 is overlapped with the upper surface of each second connecting plate 214b (i.e., the back surface of the side surface of the L-shaped connecting plate 214 on which the guide tube 212 is provided), so that the panel assembly 1 can be more firmly fitted with the rear panel bracket 21. Optionally, the guide tube 212 and the L-shaped connecting plate 214 may be formed as an integral part, so that the assembly is facilitated and the assembly efficiency is improved.

As shown in fig. 2, according to some embodiments of the present invention, the screen connecting bracket 12 is formed in a circular ring shape, a plurality of threaded holes 121 are provided along the circumference of the screen connecting bracket 12, the screen rear bracket 21 is provided with through holes 211 corresponding to the plurality of threaded holes 121, and the radial outer side of each through hole 211 is provided with a guide tube 212, so as to facilitate the assembly of the screen connecting bracket 12 and the screen rear bracket 21. For example, as shown in fig. 2, two threaded holes 121 are formed at an interval on the circumference of the screen connecting bracket 12, two through holes 211 corresponding to the two threaded holes 121 on the screen connecting bracket 12 one by one are formed on the screen rear bracket 21, wherein a guide tube 212 is formed outside each through hole 211, and the guide tube 212 can align the connecting screw 3 with the through hole 211 and the threaded hole 121, thereby facilitating assembly.

As shown in fig. 2-3, according to some embodiments of the present invention, the screen connecting bracket 12 is provided with a slot 122 that opens toward the radial outside, and the screen rear bracket 21 is provided with a fixture block 215 that can be screwed into the slot 122, so that the screen connecting bracket 12 and the screen rear bracket 21 can be more firmly matched. Specifically, for example, as shown in fig. 2 to 3, three locking grooves 122 are provided on the screen connecting bracket 12, and the three locking grooves 122 are uniformly spaced on the circumference of the screen connecting bracket 12. Three clamping blocks 215 are arranged on the screen rear bracket 21, and the three clamping blocks 215 are uniformly arranged on the circular ring part of the screen rear bracket 21 at intervals. When the screen connecting bracket 12 is matched with the screen rear bracket 21, the clamping block 215 can be screwed into the corresponding clamping groove 122 by rotating the screen connecting bracket 12 or the screen rear bracket 21, the through holes 211 and the threaded holes 121 are in one-to-one correspondence, and then the connecting screws 3 and the threaded holes 121 are screwed together to be connected together, so that the screen connecting bracket 12 is connected with the screen rear bracket 21.

According to the utility model discloses vehicle, include according to the utility model discloses the vehicle-mounted display screen's of above-mentioned embodiment swivelling joint mechanism 100.

According to the utility model discloses vehicle, through setting up above-mentioned swivelling joint mechanism 100, the both sides of swivelling joint mechanism 100's screen after-poppet 21 set up stand pipe 212, when screen assembly 1 and the assembly of rotatory fixed bolster assembly 2, can directly place connecting screw 3 in stand pipe 212, stand pipe 212 can make things convenient for connecting screw 3 to aim at with perforation 211 and screw hole 121, consequently can make things convenient for connecting screw 3's installation, can promote vehicle-mounted display screen's swivelling joint mechanism 100's assembly efficiency from this.

Referring to fig. 1 to 11, a rotary connection mechanism 100 of an on-vehicle display screen according to an embodiment of the present invention will be described in detail, and the rotary connection mechanism 100 may be used in a vehicle. It is to be understood that the following description is exemplary only, and is not intended as a specific limitation on the invention.

As shown in fig. 1 to 5, the rotary connection mechanism 100 of the vehicle-mounted display screen includes a screen assembly 1, a rotary fixing bracket assembly 2 and a connection screw 3. As shown in fig. 2, the screen assembly 1 includes a vehicle-mounted display screen 11 and a screen connecting bracket 12, and the vehicle-mounted display screen 11 and the screen connecting bracket 12 are connected by screws. The screen connecting bracket 12 is roughly formed into a circular ring shape, two threaded holes 121 are formed in the outer peripheral wall of the screen connecting bracket 12 at intervals, three clamping grooves 122 which are open towards the outside are formed in the outer peripheral wall of the screen connecting bracket 12, and the three clamping grooves 122 are uniformly arranged in the circumferential direction of the screen connecting bracket 12 at intervals.

As shown in fig. 2 to 5, the rotary fixing bracket assembly 2 includes a screen rear bracket 21 and a rotary shaft 22, and the screen rear bracket 21 and the rotary shaft 22 are in interference fit with each other. The main body of the screen rear bracket 21 is formed in a substantially circular ring shape, two through holes 211 are formed in the outer circumferential side wall of the screen rear bracket 21 at intervals, two L-shaped link plates 214 are connected to the outer side wall of the circular ring portion of the screen rear bracket 21, and each L-shaped link plate 214 has a first link plate 214a and a second link plate 214b perpendicular to each other. Wherein the first link plate 214a is connected to the outer circumferential sidewall of the panel rear bracket 21, and the through hole 211 is provided on the first link plate 214 a. The second link plate 214b is connected to the guide tube 212, wherein the guide tube 212 has a semi-cylindrical shape, one end of the guide tube 212 is connected to the first link plate 214a, and the lower end of the wire guide is fixed to the second link plate 214 b. Two opposite limiting structures 213 are arranged on the inner peripheral wall of the guide tube 212, each limiting structure 213 comprises a convex block 213a and an elastic arm 213b, one end of the elastic arm 213b is connected with the inner peripheral wall of the guide tube 212, and the other end of the elastic arm 213b is connected with the convex block 213 a. The elastic arm 213b can be extended and contracted. Three clamping blocks 215 are arranged at intervals on the periphery of the circular ring-shaped part of the screen rear bracket 21, and the positions of the three clamping blocks 215 correspond to the three clamping grooves 122 on the screen connecting bracket 12 one by one. The head of the connecting screw 3 is provided with an annular groove arranged around its axis.

Specifically, when the rotary connection mechanism 100 is assembled, the in-vehicle display screen 11 and the screen connection bracket 12 are first fixed together to form the screen assembly 1, wherein the screen connection bracket 12 is located on the back of the in-vehicle display screen 11. Then, the rear bracket 21 of the panel is fitted with the rotary shaft 22, the two connection screws 3 are pre-installed in the guide tube 212, and the protrusion 213a of the stopper 213 is fitted with the annular groove of the connection screw 3. Finally, the screen connecting support 12 is aligned with the screen rear support 21 (that is, the open space of the guide tube 212 on the screen rear support 21 is aligned with the back of the screen assembly 1), the three fixture blocks 215 are screwed into the three corresponding clamping grooves 122 by rotating the screen connecting support 12, the connecting screw 3 is aligned with the through hole 211 and the threaded hole 121, the connecting screw 3 is screwed with the corresponding threaded hole 121, and as the connecting screw 3 moves inwards continuously, the bump 213a on the limiting mechanism 213 deforms elastically and slides out of the groove 31. After the connection screw 3 is tightened, the assembly of the rotary connection mechanism 100 of the in-vehicle display screen is thereby completed.

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. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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 (10)

1. The utility model provides a swivelling joint mechanism of on-vehicle display screen which characterized in that includes:

the screen connecting support is suitable for being arranged on the back surface of the vehicle-mounted display screen, and a threaded hole is formed in the screen connecting support;

the rotary fixing support assembly comprises a screen rear support, a through hole is formed in the screen rear support, the back face of the vehicle-mounted display screen is suitable for being arranged towards the rotary fixing support assembly, the through hole in the screen rear support is over against the threaded hole in the screen connecting support, and the through hole is located on one side, facing the edge of the vehicle-mounted display screen, of the threaded hole;

the connecting screw is matched in the through hole and fixed on the threaded hole; wherein,

be equipped with on the screen rear bracket and be used for right the connecting screw carries out the stand pipe of installation direction, the stand pipe is located fenestrate keeping away from one side of screw hole.

2. The rotary connection mechanism of the vehicle-mounted display screen according to claim 1, wherein a limiting structure for pre-fixing the connection screw before installation is arranged on the screen rear support.

3. The rotary connection mechanism of vehicle-mounted display screen according to claim 2, wherein the limiting structure comprises a projection formed in the guide tube to clamp the connection screw.

4. The rotary connection mechanism of the vehicle-mounted display screen is characterized in that a groove matched with the lug is formed in the outer peripheral surface of the connection screw.

5. The rotary connection mechanism of an on-vehicle display screen as claimed in claim 4, wherein the groove is formed at a head portion of the connection screw, and the groove is formed as an annular groove provided around an axis of the connection screw.

6. The rotary connection mechanism of a vehicle-mounted display screen of claim 3, wherein the limiting structure further comprises an elastic arm connected between the inner peripheral wall of the guide tube and the projection.

7. The rotary connecting mechanism of vehicle-mounted display screen as claimed in claim 1, wherein the screen rear bracket comprises an L-shaped link plate having a first link plate and a second link plate perpendicular to each other, the through hole is provided in the first link plate, one end of the guide tube is connected to the first link plate, a peripheral wall of the guide tube is connected to the second link plate, and a rear surface of the vehicle-mounted display screen is adapted to abut against the second link plate.

8. The rotary connection mechanism of a vehicle-mounted display screen according to claim 1, wherein the screen connection bracket is formed in a ring shape, a plurality of threaded holes are formed along a circumferential direction of the screen connection bracket, the screen rear bracket is provided with the through holes corresponding to the plurality of threaded holes, and the guide pipe is arranged radially outside each through hole.

9. The rotary connection mechanism of a vehicle-mounted display screen according to claim 1, wherein the screen connection bracket is provided with a slot which is open towards the radial outer side, and the screen rear bracket is provided with a fixture block which can be screwed into the slot.

10. A vehicle having a swivel connection of an on-board display screen according to any one of claims 1-9.