A telescopic folding mechanism for a display screen

Abstract

The present invention provides a telescopic folding mechanism for a display screen, comprising a foldable display screen, a storage component, a telescopic bracket, and two stretching brackets; the storage component is provided with a storage groove for storing the foldable display screen; one end of the telescopic bracket is installed in the storage groove, and the other end is hinge-connected to the foldable display screen through a rotating shaft; the two stretching brackets are symmetrically arranged on both sides of the telescopic bracket, one end of each stretching bracket is installed on the telescopic bracket, and the other end is connected to the foldable display screen. By telescoping and folding the in-vehicle central control screen into the center console, the user can operate the physical buttons to control the telescopic movement of the telescopic bracket, driving the foldable display screen to move relative to the storage groove, and the stretching movement of the stretching bracket drives the foldable display screen to unfold or fold, so that the central control screen can be folded and retracted into the groove or automatically unfolded after being pushed out of the groove. This solves the problem that the continuous increase in the size of the central control screen leads to a reduction in the cockpit space and distracts the driver.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and particularly to a telescopic folding mechanism for a display screen. Background Art

[0002] With the development of vehicle intelligence, in-vehicle central control screens are increasingly widely used during driving. As an intelligent and diversified vehicle interior instrument, the in-vehicle central control screen undertakes various information tasks including entertainment, communication, navigation, and driving. Currently, the layout of the in-vehicle central control screen is generally on the right side of the driver, which affects the quick and accurate acquisition of information outside the effective visual field range during driving. At the same time, in order to integrate more functions, enhance human-machine interaction, and create a sense of technology, most automotive central control screens are now getting larger and larger, resulting in a reduction in the cockpit space and distracting the driver, which may pose a driving safety risk. Therefore, there is room for improvement. Summary of the Invention

[0003] In view of the above-mentioned disadvantages of the prior art, the present invention provides a telescopic folding mechanism for a display screen. By folding and telescoping the in-vehicle central control screen into a groove in the center console, after the user folds up the central control screen through physical button operation, it automatically retracts into the groove. After being pushed out of the groove, it automatically unfolds, and the driver and passenger can separately rotate the central control screen through the bracket for operation. In this way, the problems that the central control screen is getting larger and larger, resulting in a reduction in the cockpit space and distracting the driver can be solved.

[0004] The present invention provides a telescopic folding mechanism for a display screen, including:

[0005] A foldable display screen;

[0006] A storage component, the storage component is provided with a storage groove for storing the foldable display screen;

[0007] A telescopic bracket, one end of the telescopic bracket is installed in the storage groove, and the other end is hinged to the foldable display screen through a rotating shaft; and

[0008] Two stretching brackets, the two stretching brackets are symmetrically arranged on both sides of the telescopic bracket, one end of each stretching bracket is installed on the telescopic bracket, and the other end is connected to the foldable display screen;

[0009] Wherein, the telescopic movement of the telescopic bracket drives the foldable display screen to move relative to the storage groove, and the stretching movement of the stretching bracket drives the foldable display screen to unfold or fold.

[0010] In an embodiment of the present invention, a pair of chutes and a pair of guide grooves are respectively formed on two opposite side surfaces of the telescopic bracket. The chutes and the guide grooves are respectively located on adjacent side surfaces of the telescopic bracket. Electric sliders are respectively installed in the chutes, and the electric sliders in the two chutes are respectively connected to the two stretching brackets. The stretching brackets drive the foldable display screen to unfold or fold through the movement of the electric sliders. Guide rails are installed in the guide grooves, and the guide rails in the two guide grooves are respectively connected into the storage groove. The telescopic bracket moves along the guide rails through the guide grooves.

[0011] In an embodiment of the present invention, the stretching bracket includes a first connecting rod and a second connecting rod. One end of the first connecting rod is connected to a first hinge seat through a first pivot shaft, and the other end is hinged to one end of the second connecting rod. The other end of the second connecting rod is connected to a second hinge seat through a second pivot shaft. The first hinge seat is connected to the electric slider through a third pivot shaft, and the second hinge seat is fixedly installed on the foldable display screen.

[0012] In an embodiment of the present invention, the first pivot shaft between the first hinge seat and the first connecting rod and the second pivot shaft between the second connecting rod and the second hinge seat are parallel to the pivot shaft of the rotary shaft hinge, and the third pivot shaft between the first hinge seat and the electric slider is perpendicular to the pivot shaft of the rotary shaft hinge.

[0013] In an embodiment of the present invention, the length of the first connecting rod is greater than the length of the second connecting rod and less than the sum of the length of the second connecting rod and the length between the second hinge seat and the rotary shaft hinge.

[0014] In an embodiment of the present invention, the stroke end point of the electric slider on the chute close to the foldable display screen corresponds to the fully unfolded state of the foldable display screen, and the stroke end point of the electric slider on the chute far from the foldable display screen corresponds to the fully folded state of the foldable display screen.

[0015] In an embodiment of the present invention, a support rod is connected between the telescopic bracket and the rotary shaft hinge. A groove is formed at the end of the telescopic bracket facing the rotary shaft hinge. One end of the support rod is connected to the rotary shaft hinge, and the other end is rotatably installed in the groove.

[0016] In an embodiment of the present invention, in the fully unfolded state of the foldable display screen, the rotary shaft of the support rod rotatably installed in the groove coincides with the third pivot shaft between the first hinge seat and the electric slider.

[0017] In an embodiment of the present invention, a cable is further included. One end of the cable is fixed to the electric slider, and the other end is connected to an electric reel in the storage groove.

[0018] In an embodiment of the present invention, a control switch is further included. The control switch is electrically connected to the electric slider, the guide rail, and the electric reel respectively.

[0019] In an embodiment of the present invention, the rotating shaft hinge is arranged as a U-shaped hinge and protrudes from the back of the foldable display screen.

[0020] Advantages of the present invention: By arranging the storage component in the center console, the foldable display screen can be folded and unfolded, and the telescopic movement of the foldable display screen can be realized through the telescopic bracket and the stretching bracket. The foldable display screen can be stored in the groove, releasing the space in the cockpit. After the foldable display screen is unfolded, the foldable display screen in the center console can be used separately by the driver and the passenger through the rotating shaft between the hinge seats and the electric sliders on the stretching bracket and the telescopic bracket, improving the riding pleasure.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present invention, and are used together with the specification to explain the principles of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0023] Figure 1 is a three-dimensional schematic diagram of the telescopic and folding mechanism of the display screen of the present invention;

[0024] Figure 2 is a three-dimensional and partial enlarged schematic diagram of the partial structure from the back view of the telescopic and folding mechanism of the display screen of the present invention;

[0025] Figure 3 is a three-dimensional schematic diagram of the structure of the display screen in the half-open state during the execution of the telescopic and folding mechanism of the present invention;

[0026] Figure 4 is a three-dimensional schematic diagram of the structure of the display screen in the folded state during the execution of the telescopic and folding mechanism of the present invention;

[0027] Figure 5 is a schematic diagram of the movement direction in the first stage when the telescopic and folding mechanism of the present invention enters the retracted state;

[0028] Figure 6 To show the schematic diagram of the movement direction of the telescopic folding mechanism of the present invention in the second stage of the retracted state;

[0029] Figure 8 To show the schematic diagram of the movement direction of the telescopic folding mechanism of the present invention in the fully retracted state;

[0030] Figure 7 To show the schematic diagram of the movement direction of the telescopic folding mechanism of the present invention when entering the deployed state from the retracted state.

[0031] In the figure: 1, foldable display screen; 10, rotating shaft hinge; 2, storage component; 20, storage groove; 3, telescopic bracket; 30, groove; 301, strut; 31, sliding groove; 310, electric slider; 311, cable; 32, guide groove; 320, guide rail; 4, stretching bracket; 41, first connecting rod; 411, first hinge seat; 42, second connecting rod; 421, second hinge seat. Specific embodiments

[0032] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. It should also be understood that the terms used in the embodiments of the present invention are for describing specific specific implementation manners, rather than for limiting the protection scope of the present invention. The test methods without specific conditions noted in the following embodiments are usually in accordance with conventional conditions or in accordance with the conditions recommended by each manufacturer.

[0033] Please refer to Figures 1 to 7 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" used in this specification are only for the convenience of clear description and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0034] Please refer to Figures 1 to 4, this embodiment provides a telescopic folding mechanism for a display screen, including a foldable display screen 1, a storage component 2, a telescopic bracket 3, and a stretching bracket 4. The storage component 2 is provided with a storage groove 20 for storing the foldable display screen 1. One end of the telescopic bracket 3 is installed in the storage groove 20, and the other end is connected to the foldable display screen 1 through a rotating shaft hinge 10. Two stretching brackets 4 are symmetrically arranged on both sides of the telescopic bracket 3. One end of each stretching bracket 4 is installed on the telescopic bracket 3, and the other end is connected to the foldable display screen 1. Among them, the telescopic movement of the telescopic bracket 3 drives the foldable display screen 1 to move relative to the storage groove 20, and the stretching movement of the stretching bracket 4 drives the foldable display screen 1 to unfold or fold.

[0035] Two half-screens on both sides of the rotating shaft hinge 10 in the foldable display screen 1 are respectively connected to the two stretching brackets 4. At the same time, the rotating shaft hinge 10 of the foldable display screen 1 is connected to the telescopic bracket 3, and the stretching bracket 4 is also connected to the telescopic bracket 3, so that the half-screen of the foldable display screen 1, the stretching bracket 4, and the telescopic bracket 3 form a multi-link mechanism. Through the telescopic change of the telescopic bracket 3, a crank-slider mechanism is formed between the telescopic bracket 3 and the stretching bracket 4. Furthermore, the movement of the telescopic bracket 3 drives the movement of the crank-slider mechanism and the multi-link mechanism, so that the stretching bracket 4 drives the half-screen of the foldable display screen 1 to rotate. Cooperating with the two stretching brackets 4 symmetrically arranged on the telescopic bracket 3, the unfolding and folding of the foldable display screen 1 are realized.

[0036] It is worth mentioning that in the crank-slider mechanism and multi-link mechanism formed by the telescopic folding mechanism, the rotating shaft hinge 10 of the foldable display screen 1 has damping characteristics. Therefore, when one end of the stretching bracket 4 is driven by the telescopic bracket 3 to move, the hinge point connected to the stretching bracket 4 will rotate first, and when the multi-link mechanism formed between the stretching bracket 4 and the telescopic bracket 3 reaches the rotation limit position, a force acting on the foldable display screen 1 will be formed, causing the foldable display screen 1 to tend to unfold or fold. Similarly, the self-flipping angle range of the foldable display screen 1 within 0-180° also limits the rotation angle range of the formed multi-link mechanism, avoiding the multi-link mechanism entering the dead point position.

[0037] The folding thickness of the foldable display screen 1 corresponds to the notch height of the storage groove 20, the length of the foldable display screen 1 after folding corresponds to the notch width of the storage groove 20, and the length of the foldable display screen 1 and the transmission component corresponds to the depth of the storage groove 20. It should be noted that the storage component 2 can be installed in the vehicle center console so that the foldable display screen 1 can be used as a center control screen, or installed on the back of the vehicle seat for rear row use, or installed at other positions inside the vehicle, reducing the impact on the vehicle interior space when the foldable display screen 1 is not in use.

[0038] In this embodiment, the user can operate through physical buttons to control the actions of the telescopic bracket 3 and the stretching bracket 4, so that after the foldable display screen 1 is folded, it automatically retracts into the storage slot 20; or the foldable display screen 1 can be unfolded by the stretching bracket 4 after being moved out of the storage slot 20 by the telescopic bracket 3.

[0039] Please refer to Figure 2 , in an embodiment, a pair of chutes 31 and a pair of guide grooves 32 are respectively formed on two opposite side surfaces of the telescopic bracket 3. The chutes 31 and the guide grooves 32 are respectively located on adjacent side surfaces of the telescopic bracket 3. Electric sliders 310 are respectively installed in the chutes 31. The electric sliders 310 in the two chutes 31 are respectively connected to the two stretching brackets 4. The stretching bracket 4 can drive the foldable display screen 1 to unfold or fold through the movement of the electric slider 310. Guide rails 320 are respectively installed in the guide grooves 32. The guide rails 320 in the two guide grooves 32 are respectively connected into the storage slot 20. The telescopic bracket 3 moves along the guide rail 320 through the guide groove 32.

[0040] The chutes 31 and the guide grooves 32 symmetrically distributed on the four side surfaces in the length direction of the telescopic bracket 3 are respectively used for installing the electric sliders 310 and the guide rails 320. The electric sliders 310 are connected to the stretching bracket 4, and the guide rails 320 are installed in the storage slot 20. By using the paired guide rails 320 and the stretching bracket 4, the stability of the display mechanism is improved. It is easy to think that the electric slider 310 in the chute 31 moves along the chute 31 under the key operation of the user through the physical switch, and then drives the stretching bracket 4 to act, so as to control the unfolded and folded states of the foldable display screen 1.

[0041] It should be noted that the telescopic bracket 3 is installed on the guide rail 320 through the guide groove 32, and is matched with the electric slider 310 slidably installed on the telescopic bracket 3, so that in the moving stroke of the foldable display screen 1 relative to the storage slot 20, the length requirement for the telescopic bracket 3 is reduced, and further the depth dimension requirement for the storage slot 20 is reduced.

[0042] Please refer to respectively Figures 1 to 4 and Figures 5 to 7, in one embodiment, the stretching bracket 4 includes a first connecting rod 41 and a second connecting rod 42. One end of the first connecting rod 41 is connected to the first hinge seat 411 through a first pivot shaft, and the other end is hinged to one end of the second connecting rod 42. The other end of the second connecting rod 42 is connected to the second hinge seat 421 through a second pivot shaft; the first hinge seat 411 is connected to the electric slider 310 through a third pivot shaft, and the second hinge seat 421 is fixedly installed on the foldable display screen 1. The first pivot shaft between the first hinge seat 411 and the first connecting rod 41 and the second pivot shaft between the second connecting rod 42 and the second hinge seat 421 are parallel to the pivot shaft of the rotating shaft hinge 10, and the third pivot shaft between the first hinge seat 411 and the electric slider 310 is perpendicular to the pivot shaft of the rotating shaft hinge 10. The length of the first connecting rod 41 is greater than the length of the second connecting rod 42 and less than the sum of the length of the second connecting rod 42 and the length between the second hinge seat 421 and the rotating shaft hinge 10.

[0043] Please refer to Figure 5 , when the electric slider 310 moves in the chute 31, it drives the stretching bracket 4 to move synchronously and provides a force in the moving direction for the foldable display screen 1. When the foldable display screen 1 is in the fully unfolded state, when the electric slider 310 moves in the direction close to the storage groove 20, the first connecting rod 41 and the second connecting rod 42 are unfolded, and the included angle between the first connecting rod 41 and the second connecting rod 42 is an acute angle, thereby transmitting a force to the foldable display screen 1 to make the foldable display screen 1 tend to fold up.

[0044] Please refer to Figures 6 to 7 , when the foldable display screen 1 is in the semi-unfolded state, when the electric slider 310 moves in the direction close to / away from the storage groove 20, the first connecting rod 41 and the second connecting rod 42 are unfolded / folded, and the included angle between the first connecting rod 41 and the second connecting rod 42 is an acute angle, transmitting a force to the foldable display screen 1 to make the foldable display screen 1 tend to fold up / unfold. It should be noted that during the folding process of the foldable display screen 1, when the included angle between the first connecting rod 41 and the second connecting rod 42 changes to an obtuse angle, the telescopic folding mechanism enters the second stage from the first stage of the retracted state. At this time, the second connecting rod 42 is pulled by the first connecting rod 41 and will make the foldable display screen 1 tend to unfold. Subsequently, when the first connecting rod 41 moves to the notch of the storage groove 20 along with the electric slider 310, through the limitation of the notch size of the storage groove 20, the deflection tendency of the two first connecting rods 41 to fold together is restricted, so that the two second connecting rods 42 provide a folding force for the foldable display screen 1.

[0045] Please refer to Figure 8, when the foldable display screen 1 is in the fully folded state, when the electric slider 310 moves away from the storage groove 20, the first link 41 and the second link 42 are folded up until the angle between the first link 41 and the second link 42 is converted from an obtuse angle to an acute angle, and then a force is transmitted to the foldable display screen 1 to make the foldable display screen 1 tend to unfold.

[0046] Please refer to Figure 1 and Figure 4 , in an embodiment, the stroke end point of the electric slider 310 on the chute 31 close to the foldable display screen 1 corresponds to the fully unfolded state of the foldable display screen 1, and the stroke end point of the electric slider 310 on the chute 31 away from the foldable display screen 1 corresponds to the fully folded state of the foldable display screen 1.

[0047] In this embodiment, for example, in the formed four-bar linkage mechanism, the unfolding angle range of the foldable display screen 1 is 0-180°, so that the rotation range of the half screen of the foldable display screen 1 is within 90°, so as to limit the rotation angle range of a single link such as the first link 41 and the second link 42 in the four-bar linkage mechanism. And the stroke range of the electric slider 310 moving on the telescopic bracket 3 is matched with the rotation range of the half screen of the foldable display screen 1, and then the unfolding and folding of the foldable display screen 1 are controlled by changing the moving direction of the stretching bracket 4 relative to the telescopic bracket 3.

[0048] Please refer to Figure 1 and Figure 2 , in an embodiment, a support rod 301 is connected between the telescopic bracket 3 and the rotating shaft hinge 10. A groove 30 is formed at the end of the telescopic bracket 3 facing the rotating shaft hinge 10. One end of the support rod 301 is connected to the rotating shaft hinge 10, and the other end is rotatably installed in the groove 30. In the fully unfolded state of the foldable display screen 1, the rotation axis of the support rod 301 rotatably installed in the groove 30 coincides with the third pivot axis between the first hinge seat 411 and the electric slider 310.

[0049] The rotation of the foldable display screen 1 is realized by the stretching action of the stretching bracket 4, and the stretching bracket 4 is rotatably installed on the electric slider 310 through the first hinge seat 411, so that one end of the stretching bracket 4 moves with the electric slider 310 to realize the stretching action. And a support rod 301 is connected between the rotating shaft hinge 10 and the telescopic bracket 3 of the foldable display screen 1 to form a multi-link mechanism for unfolding or folding the foldable display screen 1. When operating the foldable display screen 1 to rotate, for example, when used as a vehicle center control screen, both the driver and the passenger can independently rotate the foldable display screen 1 to adjust the deflection angle along the third pivot axis for operation. At the same time, the support rod 301 connected between the telescopic bracket 3 and the rotating shaft hinge 10 and the two stretching brackets 4 jointly support the foldable display screen 1, further improving the stability of the foldable display screen 1.

[0050] Please refer to Figure 2 In one embodiment, it further includes a pulling wire 311 and a control switch. One end of the pulling wire 311 is fixed on the electric slider 310, and the other end is connected to an electric reel in the storage slot 20. The control switch is electrically connected to the electric slider 310, the guide rail 320, and the electric reel respectively. The control switch can be, for example, a physical switch, which is used to control the retractable display screen 1 to be moved out and unfolded from the storage slot 20 or folded and moved into the storage slot 20.

[0051] In this embodiment, at the moment when the retractable display screen 1 is folded, the rotating shaft hinge 10 changes from a stationary state to a movable state, and it is necessary to stretch the bracket 4 to provide an additional acting force to the retractable display screen 1. The pulling wire 311 connected to the electric slider 310 assists the electric slider 310 to move, enhancing the driving force of the electric slider 310 to ensure the acting force of the stretching bracket 4 pulling the retractable display screen 1.

[0052] It should be noted that as Figure 7 shown, during the process of the retractable display screen 1 moving outwards and unfolding from the storage slot 20, the telescopic bracket 3 is separately moved outwards along the guide rail 320 until the stretching bracket 4 is completely moved out of the storage slot 20, and the electric slider 310 and the electric reel are not driven, so that the electric slider 310 is pulled by the pulling wire 311 and remains stationary relative to the storage slot 20. The first link 41 and the second link 42 are subjected to a tensile force to unfold the retractable display screen 1. When folding the retractable display screen, the telescopic bracket 3 retracts into the storage slot 20 along the guide rail 320, and cooperates with the movement of the electric slider 310 on the chute 31, so that the electric slider 310 continues to remain stationary relative to the storage slot, causing the retractable display screen 1 to be folded again.

[0053] Please refer to Figure 4 In one embodiment, the rotating shaft hinge 10 is set as a U-shaped hinge and protrudes from the back of the retractable display screen 1. After the screen of the retractable display screen 1 is folded, the retractable display screen 1 is not in a folded state, but presents a U-shaped state under the action of the specific rotating shaft hinge 10 to improve the durability of the retractable display screen 1.

[0054] It should be noted that based on the above embodiment, the screen can also be folded and unfolded manually. At this time, the rotating connection part and the sliding connection part of the stretching bracket 4 and the telescopic bracket 3 are in a damping connection state, that is, neither the electric slider 310 nor the guide rail 320 needs to generate a driving action, and the retractable display screen 1 is moved out and unfolded or folded and moved into the storage slot 20 by manual pulling or pushing. Similarly, a manual bracket can also be used for the storage and display of the central control screen, which will not be elaborated here.

[0055] In summary, a telescopic folding mechanism for a display screen provided by the present invention arranges the storage component 2 in the center console, enabling the foldable display screen 1 to be folded and unfolded, and realizing the telescoping of the foldable display screen 1 through the telescopic bracket 3 and the stretching bracket 4. The foldable display screen 1 is stored in the groove 30, releasing the cockpit space. After the foldable display screen 1 is unfolded, the foldable display screen 1 for the center console can be used separately by the driver and the passenger through the rotating shaft between the hinge seat on the stretching bracket 4 and the telescopic bracket 3 and the electric slider 310, improving the use comfort.

[0056] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A telescopic folding mechanism for a display screen, characterized in that, Comprising: A foldable display screen (1); A storage component (2), the storage component (2) is provided with a storage groove (20), and the storage groove (20) is used for storing the foldable display screen (1); A telescopic bracket (3), one end of the telescopic bracket (3) is installed in the storage groove (20), and the other end is connected to the foldable display screen (1) through a rotating shaft hinge (10); and Two stretching brackets (4), the two stretching brackets (4) are symmetrically arranged on both sides of the telescopic bracket (3), one end of each stretching bracket (4) is installed on the telescopic bracket (3), and the other end is connected to the foldable display screen (1); Wherein, the telescopic movement of the telescopic bracket (3) drives the foldable display screen (1) to move relative to the storage groove (20), and the stretching movement of the stretching bracket (4) drives the foldable display screen (1) to unfold or fold; A pair of sliding grooves (31) and a pair of guide grooves (32) are respectively provided on the opposite side surfaces of the telescopic bracket (3), the sliding grooves (31) and the guide grooves (32) are respectively located on the adjacent side surfaces of the telescopic bracket (3), and electric sliders (310) are respectively installed in the sliding grooves (31); The stretching bracket (4) includes a first connecting rod (41) and a second connecting rod (42), one end of the first connecting rod (41) is connected to a first hinge seat (411) through a first pivot shaft, and the other end is hinged to one end of the second connecting rod (42), and the other end of the second connecting rod (42) is connected to a second hinge seat (421) through a second pivot shaft; the first hinge seat (411) is connected to the electric slider (310) through a third pivot shaft, and the second hinge seat (421) is installed on the foldable display screen (1); The first pivot shaft between the first hinge seat (411) and the first connecting rod (41), and the second pivot shaft between the second connecting rod (42) and the second hinge seat (421) are parallel to the pivot shaft of the rotating shaft hinge (10), and the third pivot shaft between the first hinge seat (411) and the electric slider (310) is perpendicular to the pivot shaft of the rotating shaft hinge (10); The length of the first connecting rod (41) is greater than the length of the second connecting rod (42) and less than the sum of the length of the second connecting rod (42) and the length between the second hinge seat (421) and the rotating shaft hinge (10).

2. The telescopic folding mechanism according to claim 1, wherein The electric sliders (310) in the two sliding grooves (31) are respectively connected to the two stretching brackets (4), the stretching brackets (4) drive the foldable display screen (1) to unfold or fold through the movement of the electric sliders (310), guide rails (320) are respectively installed in the guide grooves (32), and the guide rails (320) in the two guide grooves (32) are respectively connected into the storage groove (20), and the telescopic bracket (3) moves along the guide rails (320) through the guide grooves (32).

3. The telescopic folding mechanism according to claim 2, wherein, The electric slider (310) corresponds to the fully unfolded state of the foldable display screen (1) at the stroke end near the foldable display screen (1) on the sliding groove (31), and the electric slider (310) corresponds to the fully folded state of the foldable display screen (1) at the stroke end far from the foldable display screen (1) on the sliding groove (31).

4. The telescopic folding mechanism according to claim 1, characterized in that, A support rod (301) is connected between the telescopic support (3) and the rotating shaft hinge (10). A groove (30) is formed at the end of the telescopic support (3) facing the rotating shaft hinge (10). One end of the support rod (301) is connected to the rotating shaft hinge (10), and the other end is rotatably installed in the groove (30).

5. The telescopic folding mechanism according to claim 4, wherein, In the fully unfolded state of the foldable display screen (1), the rotation axis of the support rod (301) rotatably installed in the groove (30) coincides with the third pivot axis between the first hinge seat (411) and the electric slider (310).

6. The telescopic folding mechanism according to claim 3, wherein, It further includes a wire rope (311). One end of the wire rope (311) is fixed on the electric slider (310), and the other end is connected to an electric reel in the storage groove (20).

7. The telescopic folding mechanism according to claim 6, characterized in that, It further includes a control switch, and the control switch is electrically connected to the electric slider (310), the guide rail (320), and the electric reel respectively.

8. The telescopic folding mechanism according to claim 4, wherein, The rotating shaft hinge (10) is set as a U-shaped hinge and protrudes from the back of the foldable display screen (1).

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