A free screen assembly structure and a free screen thereof

Abstract

The application relates to the technical field of display screens, and particularly discloses a free screen assembly structure and a free screen, the assembly structure comprising a movable base and a telescopic stand, a screen assembly component being connected to the upper end of the telescopic stand through a damping ball hinge, the screen assembly component comprising an insertion plate, a left-right through insertion slot being formed in the front side of the insertion plate, a convex edge being extended to the middle from the front side of the upper and lower ends of the insertion slot, an inner cavity being formed in the insertion plate above and below the insertion slot, a straight slot being formed in the upper and lower ends of the insertion slot and being communicated with the inner cavity, a wheel frame strip being connected to the bottom wall of the inner cavity on the two sides of the straight slot through guide columns and springs, and a row of rubber wheels being rotatably installed in the wheel frame strip and extending out of the straight slot; the free screen assembly structure disclosed by the application is simple and ingenious in design, can ensure quick disassembly and assembly of the display screen, and greatly improves the safety and stability of the display screen during use.

Description

Technical Field

[0001] This invention relates to the field of display screen technology, and specifically discloses a free-screen assembly structure and its free-screen. Background Technology

[0002] The Free Screen, also known in the industry as the Mobile Smart Screen, mainly consists of two parts: a display screen and a bracket. The display screen and the bracket are usually connected by a ball joint or other free connectors, allowing the display screen to be rotated or tilted at any angle according to the user's needs. With its portability, multi-functionality and intelligent interactivity, it has become a powerful assistant for home, office and even outdoor activities.

[0003] For example, invention patent application number 2022110773104 discloses a mobile smart screen, whose main body includes a chassis, a support frame, and a display screen. The display screen is connected to the top of the support frame via a free connector, allowing the display screen to be rotated and adjusted at any angle, as well as tilted. In this invention patent, the display screen and support frame are integrated and cannot be detached during use, thus preventing the display screen from being removed separately and used as a large tablet computer, limiting its practical application.

[0004] Currently, the industry is conducting in-depth research on rapid assembly methods between displays and support frames. However, the issue of the relationship between rapid assembly and assembly stability has not been well resolved. This is because the screen in a freestanding display is larger and heavier than that of a typical tablet computer. Furthermore, the display needs to be adjusted horizontally, vertically, and at any other direction and angle, making it difficult to guarantee post-assembly stability. If the display falls due to instability, it will be damaged, resulting in high repair and replacement costs. Therefore, based on the technical shortcomings of existing rapid assembly structures between freestanding displays and support frames, this application proposes a freestanding display assembly structure and its corresponding freestanding display that can solve this technical problem. Summary of the Invention

[0005] The present invention aims to provide a free screen assembly structure and its free screen, which enables quick assembly and disassembly of the display screen and the support frame, while ensuring that the assembled display screen can maintain high stability in any direction or angle, and prevent the display screen from falling off the support frame and causing damage.

[0006] This invention is achieved through the following technical solution: A free-form screen assembly structure includes a movable base and a telescopic column. The telescopic column is fixed on the movable base. The upper end of the telescopic column is connected to a screen assembly assembly via a damping ball joint. The screen assembly assembly includes a plate. The front side of the plate has a slot that runs through the left and right sides. The front sides of the upper and lower ends of the slot both have protruding edges extending towards the middle. The plate above and below the slot has an inner cavity. The upper and lower ends of the slot both have straight slots that communicate with the inner cavity. The bottom walls of the inner cavity on both sides of the straight slot are connected to wheel frame strips via guide posts and springs. A row of rubber wheels extending out of the straight slots are rotatably mounted in the wheel frame strips. Both ends of the wheel frame strip are provided with trapezoidal inclined blocks, and both ends of the inner cavity are provided with inclined extrusion blocks that press the trapezoidal inclined blocks toward the straight groove side. The rear end of the inclined extrusion block extending out of the inner cavity is connected to a pressure block. A slide rail is provided on the back of the insert plate located between the two pressure blocks, and a counterweight slide bar that is aligned with the two pressure blocks is slidably mounted on the slide rail.

[0007] The free-form screen assembly structure disclosed in this invention allows for rapid assembly of the display screen. The display screen is inserted from either the left or right end of the slot. During insertion, the upper and lower rollers overcome the spring force and move away from each other until the display screen is inserted into the middle of the slot. At this point, the upper and lower rows of rubber rollers provide sufficient clamping force to prevent lateral movement of the display screen. Simultaneously, the protruding edge on the front side of the slot prevents the display screen from falling out of the front opening, providing good drop protection. Conversely, when it is necessary to remove the display screen, the user simply needs to forcefully pull the display screen out of the slot.

[0008] Furthermore, when the display needs to be adjusted to a vertical position, the screen assembly is rotated 180° around the damping ball joint. During the process of the screen assembly changing from a horizontal to a vertical position, the counterweight slide bar will move downward along the slide rail until its own weight is fully applied to the pressure block. This causes the inclined extrusion block to forcefully press the trapezoidal inclined block at the end of the wheel frame towards the straight groove side, thereby increasing the clamping force of the two rows of rubber wheels on the display and preventing the display from slipping due to insufficient clamping force of the two rows of rubber wheels to overcome its own weight.

[0009] As a further feature of the above solution, a locking gear is connected to the same end of each rubber wheel axle, and a rack aligned vertically with the locking gear is fixed to the bottom wall of the inner cavity. Through the design of the locking gear and rack, this invention allows the weight of the counterweight slide bar to be transmitted to the pressure block. Then, when the inclined pressing block pushes the wheel frame strip towards the straight groove, the locking gear and rack mesh and lock, preventing the display screen from sliding down due to the rotation of the rubber wheels in a vertical position, thus further improving the clamping stability of the display screen.

[0010] As a further provision of the above solution, the insert plate includes a middle insert plate frame, an upper clamping insert plate, and a lower clamping insert plate. The ends of the upper and lower clamping insert plates that extend into the middle insert plate frame are provided with protrusions, and the protrusions on the upper and lower clamping insert plates are staggered. A drive gear is rotatably arranged between the two staggered protrusions. The opposing sides of the two protrusions are provided with tooth surfaces that mesh with the drive gear. An adjustment mechanism is connected to the end of the drive gear that extends out of the back of the middle insert plate frame.

[0011] As a further provision of the above solution, the adjustment mechanism includes a transmission housing disposed on the back of the intermediate insert frame, the drive gear being connected to a worm gear located in the transmission housing via a rotating shaft, a worm gear being rotatably disposed in the transmission housing to interact with the worm gear, and a turning end being provided at the end of the worm gear extending out of the transmission housing.

[0012] This invention further designs the insert plates as a retractable and adjustable structure. Before the display screen is inserted into the screen assembly assembly, the end distance between the upper and lower clamping insert plates can be finely adjusted. This allows for adjustment of the clamping force of the upper and lower rows of rubber wheels on the display screen after it is horizontally inserted into the screen assembly assembly. Furthermore, when it is necessary to rotate the display screen to a vertical position, the clamping force can be further increased by adjusting the end distance between the upper and lower clamping insert plates, preventing slippage due to its own weight. In addition, the adjustment mechanism in this invention employs a worm gear transmission design, enabling not only fine adjustment of the distance between the upper and lower clamping insert plates but also good self-locking function after adjustment, maintaining stability in clamping the display screen over a long period.

[0013] As a further improvement to the above solution, the back of the insert plate is provided with a long shell that includes the slide rail, the pressure block, and the counterweight slide bar. This long shell design not only improves the overall aesthetics of the freeform screen but also prevents the slide rail, pressure block, and counterweight slide bar from being exposed and contaminated.

[0014] As a further feature of the above solution, straight openings are provided on the rear sides of both ends of the inner cavity, and the inclined extrusion block is connected to the pressure block through the straight openings. The design of the straight openings ensures that the inclined extrusion block moves stably along the direction of the straight openings under the action of the counterweight slide.

[0015] As a further improvement to the above solution, the back of the insert plate is provided with a wireless charging module and heat dissipation holes. The wireless charging module is provided with a charging port for connecting to an external power source. This design, which eliminates the need for a charging module and heat dissipation holes, allows for wireless charging when the display screen's own battery is low, and effectively dissipates heat and cools the display screen when its temperature is too high.

[0016] As a further feature of the above scheme, the damping ball joint includes a damping ball seat fixedly connected to the back of the insert plate, and the upper end of the telescopic column is connected to a ball head that matches the damping ball seat via a radial rod.

[0017] The present invention also discloses a free screen using the above-described assembly structure, which includes the above-described free screen assembly structure and a display screen, wherein the display screen and the screen assembly assembly are detachably plugged into each other.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The free-screen assembly structure disclosed in this invention not only enables rapid insertion between the display screen and the entire bracket, but also provides sufficient clamping force to the display screen in its horizontal position, preventing lateral movement under external forces. Simultaneously, when the display screen is rotated to a vertical position, the gravity of the counterweight slide bar is transferred to the wheel frame, increasing the clamping force of the two rows of rubber wheels and preventing slippage due to insufficient clamping force. This significantly improves the stability of the display screen in various states after assembly with the bracket. The entire free-screen assembly structure is simple and ingeniously designed, ensuring rapid disassembly and assembly of the display screen while greatly improving its safety and stability during use.

[0019] This invention further improves the design of the screen assembly components. On the one hand, a locking gear is installed on the axle of the rubber wheel, and a rack is installed below it. When the display screen is rotated to a vertical position, the weight of the counterweight slider not only increases the clamping force of the rubber wheel on the display screen, but also the locking gear engages and locks with the rack, preventing the display screen from slipping due to the rotation of the rubber wheel. On the other hand, by changing the insert plate to a telescopic design, the clamping force applied to the display screen by the two sets of rubber wheels can be finely adjusted before the display screen is inserted, and the force applied to the display screen by the rubber wheels can also be adjusted after the display screen is rotated to a vertical position, which greatly ensures the stability of the display screen after assembly. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a frontal perspective view of Embodiment 1 of the present invention; Figure 2 This is a frontal three-dimensional structural diagram of the second state in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the rear three-dimensional structure of Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the rear three-dimensional structure of Embodiment 3 of the present invention; Figure 5 This is a schematic diagram of the external front three-dimensional structure of the screen assembly component in this invention; Figure 6 This is a three-dimensional view of the internal front structure of the screen assembly component in this invention; Figure 7 This is a three-dimensional structural diagram of the back of the screen assembly component in this invention; Figure 8 This is a three-dimensional structural diagram of the display screen in this invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the wheel frame strip, rubber wheels, etc. in this invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the wheel frame strip, rubber, and rack in Embodiment 2 of the present invention; Figure 11 For the present invention Figure 6 Enlarged structural diagram at point A; Figure 12 This is a front perspective view of the screen assembly component in Embodiment 3 of the present invention; Figure 13 This is a three-dimensional structural diagram of the back of the screen assembly component in Embodiment 3 of the present invention. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-13 This application will be described in detail with reference to the embodiments. Example 1

[0024] Example 1 discloses a free screen assembly structure, as shown in the attached figure. Figure 1 Appendix Figure 2 and attached Figure 3The assembly structure includes a movable base 1, a telescopic column 2, and a screen assembly assembly 3. The lower surface of the movable base 1 is equipped with several casters or ball bearings, allowing for easy movement. The telescopic column 2 is fixed to the upper surface of the movable base 1. The screen assembly assembly 3 is movably connected to the upper end of the telescopic column 2 via a damping ball joint 4, enabling the screen assembly assembly 3 to rotate 360° and adjust its tilt angle appropriately.

[0025] Reference Appendix Figures 5-11 The screen assembly 3 includes a fixed insert plate 301. A damping ball seat 401 of the damping ball hinge 4 is fixedly installed at the center of the back of the fixed insert plate 301. The upper end of the telescopic column 2 is fixed with a ball head 402 that matches the damping ball seat 401 by a radial connecting rod. A slot 302 that runs through the left and right sides is opened on the front side of the fixed insert plate 301. The front sides of the upper and lower ends of the slot 302 have protruding edges 303 extending about 3-5mm towards the center. After the display screen 100 is horizontally inserted into the slot 302, the protruding edges 303 at the upper and lower ends can limit the display screen 100 and prevent the display screen 100 from falling out of the front opening of the slot 302.

[0026] Both the upper and lower fixed insert plates 301 of the slot 302 have inner cavities 304 extending along their width, and the upper and lower walls of the slot 302 have straight slots 305 communicating with the corresponding inner cavities 304. Guide posts 306 and springs 307 are provided on the bottom walls of the inner cavities 304 on both sides of the straight slots 305. A wheel frame strip 308, with both ends connected to the guide posts 306 and springs 307, is then provided in the inner cavity 304. A row of rubber wheels 309 is rotatably connected to the wheel frame strip 308, allowing one end of each rubber wheel 309 to extend a certain distance into the slot 302 through the straight slots 305. When the display screen 100 is inserted horizontally into the slot 302 along the left or right end opening, it can contact the upper and lower rows of rubber wheels 309. During the process of forcibly inserting the display screen 100, the wheel frame strip 308 will overcome the force of the spring 307 and move away from the straight slot 305 until the display screen 100 is inserted horizontally into the slot 302 in the center. Due to the force of the spring 307, the upper and lower rows of rubber wheels 309 will clamp and fix the display screen 100, preventing it from moving left and right at will under the action of external force.

[0027] To prevent the clamping force of the two rows of rubber wheels 309 on the display screen 100 from slipping due to the weight of the display screen 100 after the screen assembly assembly 3 rotates 90°, this embodiment 1 further improves the design. Specifically, trapezoidal inclined blocks 310 are provided at both ends of the wheel frame strip 308, and the inclined surface on the trapezoidal inclined block 310 is located on the side away from the straight slot 305. Straight openings 311 are provided on the rear sidewalls at both ends of the inner cavity 304, and inclined pressing blocks 312 that interact with the trapezoidal inclined blocks 310 are provided at both ends of the inner cavity 304. The outer end of the inclined pressing block 312 extending along the straight opening 311 is connected to a pressure block 313. A slide rail 314 parallel to the straight slot 305 is provided on the back of the fixed insert plate 301 between the two pressure blocks 313. A counterweight slide bar 315 is slidably mounted on the slide rail 314, so that the counterweight slide bar 315 and the pressure blocks 313 at both ends are on the same straight line. In addition, for the overall aesthetic design, a long strip shell 316 is provided on the back of the fixed insert plate 301 to include the counterweight slide bar 315, the pressure blocks 313, etc.

[0028] In this embodiment 1, through the above structural design, when the display screen 100 is inserted into the screen assembly 3 and rotated from a horizontal state to a vertical state, the counterweight slide bar 315 will also slide down along the slide rail 314 due to the change in state, and its lower end will directly act on the pressure block 313, transferring all the weight of the counterweight slide bar 315 to the pressure block 313. Then, through the pressure block 313, the inclined extrusion block 312 moves towards the end of the trapezoidal inclined block 310, thereby forcibly pressing the wheel frame strip 308 towards the straight groove 305, so that the two rows of rubber wheels 309 can provide greater clamping force to the display screen 100, preventing the display screen 100 in the vertical state from slipping down between the two rows of rubber wheels 309 due to insufficient clamping force.

[0029] Finally, see the attached document. Figure 7 and attached Figure 8 In this embodiment 1, a wireless charging module 317 is also provided on the back of the fixed socket 301, and a corresponding USB or other type of charging port is provided on the side of the wireless charging module 317. Corresponding heat dissipation holes 318 are provided on both sides of the back of the fixed socket 301, and a wireless charging receiver 101 corresponding to the wireless charging module 317 and a heat dissipation part 102 corresponding to the heat dissipation holes 318 are provided on the back of the display screen 100. When the display screen 100's battery is low, it can be charged online via a household circuit connected to the wireless charging module 317. During the wireless charging process, the heat dissipation part 102 can cool it down in time, and the exhausted heat can be discharged in time through the heat dissipation holes 318.

[0030] Furthermore, this invention also discloses a final product, a free-viewing screen, as shown in the attached diagram. Figure 1and attached Figure 2 The free screen shown is composed of the free screen assembly structure and the display screen 100 in embodiment 1. After the display screen 100 is inserted into the screen assembly assembly 3, it constitutes the free screen sold on the market. Example 2

[0031] Example 2 discloses a free screen assembly structure that is further optimized based on the technical solution in Example 1. The similarities between it and Example 1 will not be described again.

[0032] Reference Appendix Figure 10 In this embodiment 2, a locking gear 319 is connected to the same end of the axle of each rubber wheel 309. Then, a rack 320 is fixedly installed on the bottom wall of the inner cavity 304, which is parallel to the wheel frame strip 308. The rack 320 is aligned vertically with the locking gear 319, and the tooth surface on the rack 320 is located directly below each locking gear 319.

[0033] In this embodiment 2, through the aforementioned improved design, when the display screen 100 is inserted into the screen assembly 3 and rotated from a horizontal state to a vertical state, the counterweight slide bar 315 will slide downwards along the slide rail 314 due to the change in state, causing its lower end to directly act on the pressure block 313. This transfers all the weight of the counterweight slide bar 315 to the pressure block 313, which then causes the inclined extrusion block 312 to move towards the end of the trapezoidal inclined block 310. This forces the wheel frame strip 308 towards the straight groove 305, allowing the two rows of rubber wheels 309 to provide greater clamping force to the display screen 100. Furthermore, the locking gear 319 engages with the teeth on the rack 320 to lock the rubber wheels 309, preventing them from rotating freely. Therefore, the interaction between the rack 320 and the locking gear 319 effectively prevents the display screen 100 from slipping between the two rows of rubber wheels 309 in the vertical state. Example 3

[0034] Example 3 discloses a free screen assembly structure that is further optimized based on the technical solution in Example 1 or Example 2. The similarities between it and Example 1 or Example 2 will not be described again.

[0035] Reference Appendix Figure 4 Appendix Figure 12 and attached Figure 13 In this embodiment 3, the fixed insert plate 301 is changed to a telescopic adjustable type, which includes a middle insert plate frame 321, an upper clamping insert plate 322 and a lower clamping insert plate 323. The damping ball seat 401 and the wireless charging module 317 in the damping ball joint 4 are both set on the back of the middle insert plate frame 321, and the heat dissipation holes 318 are opened on the upper clamping insert plate 322 and the lower clamping insert plate 323.

[0036] The upper clamping plate 322 and the lower clamping plate 323 are inserted into the upper and lower openings of the intermediate plate frame 321, respectively, together forming a fixed plate 301 structure similar to that in Embodiment 1 or Embodiment 2. Simultaneously, protrusions 324 are provided at the ends of the upper clamping plate 322 and the lower clamping plate 323 where they are inserted into the intermediate plate frame 321, and the protrusions 324 between the upper clamping plate 322 and the lower clamping plate 323 are staggered. A rotating shaft 325 extending from the back of the intermediate plate frame 321 is rotatably arranged between the adjacent sides of the two protrusions 324. A drive gear 326 is provided at the front end of the rotating shaft 325, located between the two protrusions 324, and toothed surfaces that mesh with the drive gear 326 are provided on the opposite sides of the two protrusions 324.

[0037] A worm gear 327 is provided at the rear end of each shaft 325 extending from the intermediate insert frame 321, and a transmission housing 328 is provided on the back of the intermediate insert frame 321 to enclose the worm gear 327. A worm 328 that interacts with the worm gear 327 is rotatably provided in the transmission housing 328, and a turning end 329 for easy operation is provided at the end of the worm 328 extending from the transmission housing 328.

[0038] Finally, it should be noted that in order to ensure that the upper clamping plate 322 and the lower clamping plate 323 can move stably closer to or further away from each other, in this embodiment 3, the protrusion 324, the driving gear 326, the worm gear 327, and the worm 328 are all set into two groups. Combined with the self-locking function of the worm gear transmission structure, self-locking can be achieved after adjustment.

[0039] In this embodiment 3, by modifying the fixed insert plate 301 into a telescopic adjustable type, the twisting end 329 can be rotated before inserting the display screen 100. Then, through the transmission action of the worm gear 327 and worm 328, the drive gear 326 is rotated. The drive gear 326 can then interact with the tooth surface on the opposite side of the protrusion 324, thereby allowing the upper clamping insert plate 322 and the lower clamping insert plate 323 to move closer or further apart, thus adjusting the clamping force on the display screen 100.

[0040] After the display screen 100 is inserted into the screen assembly 3, before rotating it from a horizontal state to a vertical state, the twisting end 329 can be rotated to reduce the distance between the upper clamping plate 322 and the lower clamping plate 323, thereby increasing the clamping force on the display screen 100 in advance. Then, with the help of the gravity of the counterweight slide bar 315, it can be completely locked and fixed, effectively preventing the display screen 100 from slipping.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A free-form screen assembly structure, comprising a movable base and a telescopic column, wherein the telescopic column is fixed on the movable base, characterized in that, The upper end of the telescopic column is connected to a screen assembly assembly via a damping ball joint. The screen assembly assembly includes a plate, and the front side of the plate has a slot that runs through the left and right sides. The front sides of the upper and lower ends of the slot both have protruding edges extending towards the middle. The plate above and below the slot has an inner cavity, and the upper and lower ends of the slot both have straight slots that communicate with the inner cavity. The bottom walls of the inner cavity on both sides of the straight slot are connected to wheel frame strips via guide posts and springs. A row of rubber wheels extending out of the straight slots are rotatably installed in the wheel frame strips. Both ends of the wheel frame strip are provided with trapezoidal inclined blocks, and both ends of the inner cavity are provided with inclined extrusion blocks that press the trapezoidal inclined blocks toward the straight groove side. The rear end of the inclined extrusion block extending out of the inner cavity is connected to a pressure block. A slide rail is provided on the back of the insert plate located between the two pressure blocks, and a counterweight slide bar that is aligned with the two pressure blocks is slidably mounted on the slide rail.

2. The free-screen assembly structure according to claim 1, characterized in that, Each of the rubber wheel axles is connected to a locking gear at the same end, and a rack is fixed on the bottom wall of the inner cavity, which is aligned vertically with the locking gear.

3. The free-screen assembly structure according to claim 1 or 2, characterized in that, The insert plate includes a middle insert plate frame, an upper clamping insert plate, and a lower clamping insert plate. The ends of the upper and lower clamping insert plates that extend into the middle insert plate frame are provided with protrusions, and the protrusions on the upper and lower clamping insert plates are staggered. A drive gear is rotatably arranged between the two staggered protrusions. The opposite sides of the two protrusions are provided with tooth surfaces that mesh with the drive gear. An adjustment mechanism is connected to the end of the drive gear that extends out of the back of the middle insert plate frame.

4. The free-screen assembly structure according to claim 3, characterized in that, The adjustment mechanism includes a transmission housing disposed on the back of the intermediate insert frame. The drive gear is connected to a worm gear located in the transmission housing via a rotating shaft. A worm is rotatably disposed in the transmission housing to interact with the worm gear, and a turning end is provided at the end of the worm extending out of the transmission housing.

5. The free-screen assembly structure according to claim 1, characterized in that, The back of the insert plate is provided with a long shell that includes the slide rail, the pressure block, and the counterweight slide bar.

6. The free-screen assembly structure according to claim 1, characterized in that, The rear sides at both ends of the inner cavity are provided with straight openings, and the inclined extrusion block is connected to the pressure block through the straight openings.

7. The free-screen assembly structure according to claim 1, characterized in that, The back of the plug is provided with a wireless charging module and heat dissipation holes. The wireless charging module is provided with a charging port for connecting to an external power source.

8. The free-screen assembly structure according to claim 1, characterized in that, The damping ball joint includes a damping ball seat fixedly connected to the back of the insert plate, and the upper end of the telescopic column is connected to a ball head that matches the damping ball seat via a radial rod.

9. A free-form screen, characterized in that, Includes the free screen assembly structure and display screen as described in any one of claims 1-8, wherein the display screen is detachably plugged into the screen assembly assembly.

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