CN118587986A - Arc screen splicing structure and arc display - Google Patents

Abstract

The present application provides a curved screen splicing structure and a curved display; the curved screen splicing structure includes a locking piece assembly arranged on a first screen box, a zipper assembly arranged on a second screen box, and an angle pad arranged between the first screen box and the second screen box. The angle pad includes a first contact surface, a second contact surface and a through hole, and the first contact surface and the second contact surface are arranged at an angle. When the angle pad is installed between the first screen box and the second screen box, the first contact surface is affixed to the first screen box, and the second contact surface is affixed to the second screen box. Afterwards, one end of the zipper assembly passes through the angle pad from the through hole and extends into the locking piece assembly. When one end of the zipper assembly is locked by the locking piece assembly, the two components will form a force to pull each other closer and tighter, thereby clamping and fixing the first screen box, the angle pad and the second screen box located between the locking piece assembly and the zipper assembly.

Description

Curved screen splicing structure and curved display

Technical Field

The present application belongs to the technical field of display devices, and more specifically, to a curved screen splicing structure and a curved display.

Background Art

With the continuous prosperity of the LED industry and the continuous advancement of technology, the application scope of LED display screens is becoming increasingly wide, especially in the rental market. Due to its advantages of high brightness, high definition, low power consumption and long life, LED display screens have become an indispensable display device for various activities, exhibitions, conferences and other occasions. However, in actual applications, in order to meet the needs of specific scenes, such as exhibitions, stadiums, theater stages, etc., it is often necessary to splice straight-edge display screens into curved display screens to provide a more immersive visual experience.

At present, the traditional method of splicing straight-edge displays into curved displays is mainly through the use of angled connectors and the use of screws and other fasteners to connect multiple straight-edge boxes together. The implementation process of this method is complicated. Not only does it require precise angle adjustment and fixation at each connection point, but it also requires ensuring that all connection points remain tight and stable to avoid problems such as looseness or deformation during long-term use. In addition, due to the physical properties of the straight-edge boxes themselves, it is difficult for the display screen to achieve the ideal curved effect visually after being spliced into a curved shape. Especially in the case of a large curved surface, the splicing gap and angle deviation will be more obvious, affecting the overall aesthetics and viewing experience.

Summary of the invention

The purpose of the embodiments of the present application is to provide a curved screen splicing structure and a curved display to solve the technical problems existing in the prior art of poor curved screen splicing effect and complicated splicing steps.

To achieve the above purpose, the technical solution adopted in this application is:

Provided is a curved screen splicing structure, comprising:

A locking piece assembly is arranged on the first screen box body;

A zipper assembly is arranged on the second screen box;

A plurality of angle pads, each of which comprises a first contact surface, a second contact surface and a through hole, wherein the first contact surface and the second contact surface are arranged at an angle, the first contact surface is used to contact the first screen box, the second contact surface is used to contact the second screen box, and the through hole is used for one end of the zipper assembly to pass through the angle pad and extend into the locking piece assembly; each angle pad has a plurality of angles between the first contact surface and the second contact surface; each angle pad is detachably connected to the first screen box and/or the second screen box;

When the locking piece assembly is locked and connected with the zipper assembly, the first screen box, the angle pad and the second screen box can be clamped and fixed in sequence.

As a further improvement of the above technical solution:

Optionally, the zipper assembly includes a pull rod and a sleeve structure, the sleeve structure is sleeved on one end of the pull rod, and the other end of the pull rod is used to extend into the locking plate assembly and be locked with the locking plate assembly; when the pull rod is locked with the locking plate assembly, the sleeve structure abuts against the second screen box.

Optionally, the sleeve structure includes a plurality of supporting protrusions, each of which extends along the axial direction of the pull rod and is arranged around the circumference of the pull rod; each of the supporting protrusions has a different protrusion length; when the pull rod is locked and connected with the zipper assembly, the supporting protrusion corresponding to the angle between the first contact surface and the second contact surface abuts against the second screen box;

The second screen box includes an abutment boss, and the abutment boss is used to abut against the corresponding supporting boss.

Optionally, the supporting boss includes a supporting bevel located at the end, and when the pull rod is locked and connected with the zipper assembly, the supporting bevel abuts against the abutment boss, and the inclination angle of the supporting bevel relative to the radial plane of the pull rod corresponds to the angle between the first contact surface and the second contact surface.

Optionally, the supporting bosses are provided in pairs, the supporting bosses in a pair have the same protrusion length, and are arranged on two sides of the pull rod opposite to each other.

Optionally, the sleeve structure includes a first sleeve and a second sleeve, the first sleeve and the second sleeve are both sleeved on the pull rod, the support boss is provided at one end of the first sleeve, the other end of the first sleeve is connected to the second sleeve along a circumferential limit direction, the second sleeve includes a limit hole, the pull rod is passed through the limit hole, and is connected to the second sleeve along a circumferential limit direction.

Optionally, the zipper assembly also includes an elastic limiting structure, which includes a first elastic member, a limiting member and an avoidance groove provided on the pull rod, the limiting member is connected to the second screen box, one end of the first elastic member abuts against the limiting member, the other end of the first elastic member abuts against the sleeve structure, one end of the limiting member extends into the avoidance groove and can move relative to the avoidance groove.

Optionally, a first limiting column is provided on the first contact surface of the angle pad, a second limiting column is provided on the second contact surface of the angle pad, a first plug hole corresponding to the first limiting column is provided on the first screen box, and a second plug hole corresponding to the second limiting column is provided on the second screen box;

When the first contact surface contacts the first screen box, the first limiting column is inserted into the first insertion hole; when the second contact surface contacts the second screen box, the second limiting column is inserted into the second insertion hole.

Optionally, the locking plate assembly includes a lock seat, a locking plate and a second elastic member, the lock seat is connected to the first screen box, the locking plate is slidably connected to the lock seat, the locking plate is provided with a locking hole and an unlocking hole which are adjacently arranged and connected to each other, when one end of the zipper assembly is extended into the locking hole, the locking plate assembly is locked and connected to the zipper assembly; when one end of the zipper assembly is extended into the unlocking hole, the locking plate assembly and the zipper assembly are released; one end of the second elastic member is connected to the lock seat, and the other end of the second elastic member is connected to the locking plate.

The present application also provides a curved display, comprising a display screen body and the above-mentioned curved screen splicing structure; at least two of the curved screen splicing structures are arranged on the same side of the display screen body, and the two curved screen splicing structures are arranged at intervals from each other.

The beneficial effects of a curved screen splicing structure and a curved display provided by the present application are:

The present application provides a curved screen splicing structure, including a locking piece assembly arranged on a first screen box, a zipper assembly arranged on a second screen box, and an angle pad block arranged between the first screen box and the second screen box. The angle pad block includes a first contact surface, a second contact surface and a through hole, and the first contact surface and the second contact surface are arranged at an angle. When the angle pad block is installed between the first screen box and the second screen box, the first contact surface is affixed to the first screen box, and the second contact surface is affixed to the second screen box. Afterwards, one end of the zipper assembly passes through the angle pad block from the through hole and extends into the locking piece assembly. When one end of the zipper assembly is locked by the locking piece assembly, the two components will form a force to pull each other closer and tighter, thereby clamping and fixing the first screen box, the angle pad block and the second screen box located between the locking piece assembly and the zipper assembly.

Compared with the traditional curved screen splicing structure, the curved screen splicing structure of the present application abandons the cumbersome fasteners and connecting pieces, making the entire splicing process simpler and faster. At the same time, its stable connection method and the setting of the support pad angle ensure that the curved display can present a smoother and more coherent curved effect after splicing, greatly improving the user experience.

The present application also provides a curved display, comprising a display screen body and the curved screen splicing structure. Since the curved display has the curved screen splicing structure, it also has the advantages of the curved screen splicing structure.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of the main structure of the arc screen splicing structure provided by the present application;

FIG2 is a schematic diagram of a top view of a curved screen splicing structure provided in the present application;

FIG3 is a schematic diagram of a partially enlarged structure in which the angle between the first screen box and the second screen box is 7.5°;

FIG4 is a schematic diagram of a partially enlarged structure in which the angle between the first screen box and the second screen box is 5°;

FIG5 is a schematic diagram of a partially enlarged structure in which the angle between the first screen box and the second screen box is 2.5°;

FIG6 is a schematic diagram of a partially enlarged structure in which the angle between the first screen box and the second screen box is 0°;

FIG7 is a schematic diagram of the three-dimensional structure of the arc screen splicing structure provided by the present application;

FIG8 is a schematic diagram of the split structure of the arc screen splicing structure provided by the present application;

FIG9 is a partial enlarged structural schematic diagram of the arc screen splicing structure provided by the present application;

FIG10 is a schematic diagram of the disassembled structure of the zipper assembly provided in the present application;

FIG11 is a schematic diagram of the three-dimensional structure of the first sleeve provided in the present application;

FIG12 is a schematic diagram of the three-dimensional structure of the second sleeve provided by the present application;

FIG13 is a schematic diagram of the three-dimensional structure of the angle pad provided in the present application;

FIG14 is a second schematic diagram of the three-dimensional structure of the angle pad provided by the present application;

FIG15 is a first perspective structural diagram of a locking plate assembly provided by the present application;

FIG16 is a second schematic diagram of the three-dimensional structure of the locking plate assembly provided by the present application;

Among them, the reference numerals in the figure are:

1. Locking plate assembly; 11. Locking seat; 12. Locking plate; 121. Locking hole; 122. Unlocking hole; 13. Second elastic member; 2. First screen box; 21. First plug hole; 3. Zipper assembly; 31. Pull rod; 32. Bushing structure; 321. Supporting boss; 322. First bushing; 323. Second bushing; 3231. Limiting hole; 33. First elastic member; 34. Limiting member; 35. Avoiding groove; 4. Second screen box; 41. Abutting boss; 5. Angle pad; 51. First contact surface; 52. Second contact surface; 53. Through hole; 54. First limiting column; 55. Second limiting column; 6. Magnetic member.

DETAILED DESCRIPTION

In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the 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 therefore should not be understood as a limitation on the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

In order to optimize the splicing and assembly process of the curved display and improve its display effect, as shown in Figures 1 to 7, the present application provides a curved screen splicing structure, including a locking piece assembly 1 arranged on a first screen box 2, a zipper assembly 3 arranged on a second screen box 4, and an angle pad 5 for supporting between the first screen box 2 and the second screen box 4.

There are multiple angle pads 5, each of which includes a first contact surface 51, a second contact surface 52 and a through hole 53. The first contact surface 51 and the second contact surface 52 are arranged at an angle. The specific value of the angle can be selected according to actual needs, such as 2.5°, 5°, 7.5°, etc., to meet the splicing requirements of different radians. When the angle pad 5 is installed between the first screen box 2 and the second screen box 4, the first contact surface 51 is attached to the first screen box 2, and the second contact surface 52 is attached to the second screen box 4. Afterwards, one end of the zipper assembly 3 passes through the angle pad 5 from the through hole 53 and extends into the locking plate assembly 1. When one end of the zipper assembly 3 is locked by the locking plate assembly 1, the two components will form a force to pull each other closer, thereby clamping and fixing the first screen box 2, the angle pad 5 and the second screen box 4 located between the locking plate assembly 1 and the zipper assembly 3.

Each angle pad 5 is detachably connected to the first screen box 2 and/or the second screen box 4; specifically, as shown in FIG8 , in one embodiment of the present application, the arc screen splicing structure further includes a magnetic member 6, which is connected to the first screen box 2 and/or the second screen box 4, and the angle pad 5 is magnetically connected to the magnetic member 6, thereby allowing a single screen box to carry multiple angle pads 5 with different pad angles. By means of magnetic connection, the angle pad 5 can be easily installed or removed from the screen box without the use of additional fasteners or tools, which not only simplifies the operation process but also improves work efficiency.

Compared with the traditional curved screen splicing structure, the curved screen splicing structure of the present application abandons the cumbersome fasteners and connecting pieces, making the entire splicing process simpler and faster. At the same time, its stable connection method and the setting of the support pad angle ensure that the curved display can present a smoother and more coherent curved effect after splicing, greatly improving the user experience.

As shown in FIGS. 10 to 12 , in one embodiment of the present application, the zipper assembly 3 includes a pull rod 31 and a sleeve structure 32, wherein the sleeve structure 32 is sleeved on one end of the pull rod 31, and the other end of the pull rod 31 is used to extend into the locking plate assembly 1 and be locked with the locking plate assembly 1; when one end of the pull rod 31 extends into the locking plate assembly 1, and the pull rod 31 is locked with the locking plate assembly 1, the locking plate assembly 1 will firmly pull and lock one end of the pull rod 31, and the other end of the pull rod 31 will press the sleeve structure 32 against the second screen box 4. Through the tightening action of the locking plate assembly 1 and the zipper assembly 3, the first screen box 2, the angle pad 5 and the second screen box 4 located between the locking plate assembly 1 and the sleeve structure 32 are clamped and fixed.

As shown in FIGS. 10 to 12 , in one embodiment of the present application, one end of the pull rod 31 extending into the locking plate assembly 1 specifically includes a conical head and a neck. The small end of the conical head points outward, and the large end of the conical head is connected to the neck. The radial dimension of the neck needs to be smaller than the radial dimension of the large end of the conical head, so that when the neck is matched with the locking plate assembly 1, the locking plate assembly 1 can clamp the conical head, thereby locking the pull rod 31 on the locking plate assembly 1.

As shown in Figures 10 to 12, in one embodiment of the present application, the sleeve structure 32 includes a plurality of support bosses 321, each of which extends along the axial direction of the pull rod 31 and is arranged circumferentially around the pull rod 31; in order to adapt to the support at different angles between the first screen box 2 and the second screen box 4, and to adapt to the clamping at different angles between the first contact surface 51 and the second contact surface 52, each of the support bosses 321 has a different protrusion length, which not only enhances the adaptability of the sleeve structure 32, but also further improves the overall stability.

When the pull rod 31 is locked and connected with the zipper assembly 3, according to the different angles between the first screen box 2 and the second screen box 4, or the different angles between the first contact surface 51 and the second contact surface 52, the corresponding supporting boss 321 is selected to abut against the second screen box 4 to ensure the stable clamping of the locking plate assembly 1 and the zipper assembly 3 on the first screen box 2, the angle pad 5 and the second screen box 4.

As shown in FIGS. 9 to 12 , in one embodiment of the present application, the second screen box 4 is further provided with an abutting boss 41 corresponding to the supporting boss 321. During the splicing process, the supporting boss 321 corresponding to the angle between the two screen boxes will abut against the abutting boss 41. At the same time, other supporting bosses 321 not involved in the abutment are staggered from the abutting boss 41 to avoid interfering with the abutment between the corresponding supporting boss 321 and the abutting boss 41.

As shown in FIG. 11 , in one embodiment of the present application, in order to ensure that the support boss 321 can be tightly abutted against the abutment boss 41, the support boss 321 includes a support bevel 3211 located at the end. When the pull rod 31 is locked and connected with the zipper assembly 3, the support bevel 3211 abuts against the abutment boss 41, and the inclination angle of the support bevel 3211 relative to the radial plane of the pull rod 31 corresponds to the angle between the first contact surface 51 and the second contact surface 52. Taking a specific numerical value as an example, when the angle between the first contact surface 51 and the second contact surface 52 is 5°, the inclination angle of the support bevel 3211 relative to the radial plane of the pull rod 31 is also 5°.

As shown in FIGS. 9 and 11 , in one embodiment of the present application, the supporting bosses 321 are arranged in pairs, and the paired supporting bosses 321 have the same protrusion length and are arranged on both sides of the pull rod 31 opposite to each other to improve the supporting stability of the supporting bosses 321. In order to match the paired supporting bosses 321, the corresponding abutment bosses 41 are also arranged in pairs. One of the paired supporting bosses 321 is supported on one of the paired abutment bosses 41, and the other of the paired supporting bosses 321 is supported on the other of the paired abutment bosses 41. The other supporting bosses 321 that are not involved in the abutment are accommodated between the two abutment bosses 41.

As shown in FIGS. 10 to 12 , in one embodiment of the present application, the sleeve structure 32 includes a first sleeve 322 and a second sleeve 323, both of which are sleeved on the pull rod 31, and a support boss 321 is provided at one end of the first sleeve 322, and the other end of the first sleeve 322 is connected to the second sleeve 323 in a circumferentially limited manner. Specifically, the circumferential limit of the first sleeve 322 and the second sleeve 323 is achieved by providing limiting teeth on the end surfaces of the first sleeve 322 and the second sleeve 323 that contact each other, and these limiting teeth are engaged with each other after the two are assembled, effectively preventing the first sleeve 322 from rotating circumferentially relative to the second sleeve 323. When the operation needs to switch the support boss 321 that contacts the abutment boss 41, it is only necessary to move the first sleeve 322 axially to separate from the second sleeve 323, and then rotate the first sleeve 322 until the required support boss 321 contacts the abutment boss 41. On the other hand, the second sleeve 323 includes a limiting hole 3231, and the pull rod 31 is inserted into the limiting hole 3231 and connected to the second sleeve 323 along the circumferential limiting direction, which is specifically achieved by the shape and position matching between the limiting hole 3231 and the pull rod 31.

As shown in Figures 3 and 10 to 12, in one embodiment of the present application, the zipper assembly 3 also includes an elastic limiting structure, which includes a first elastic member 33, a limiting member 34 and an avoidance groove 35 provided on the pull rod 31. The limiting member 34 is connected to the second screen box 4, one end of the first elastic member 33 abuts against the limiting member 34, and the other end of the first elastic member 33 abuts against the sleeve structure 32. The first elastic member 33 is used to provide elastic supporting force to ensure that the first sleeve 322 and the second sleeve 323 in the sleeve structure 32 always maintain meshing contact, which not only enhances the overall stability of the zipper assembly 3, but also helps to reduce loosening or dislocation caused by vibration or impact.

One end of the limiting member 34 extends into the avoidance groove 35 and can move relative to the avoidance groove 35, thereby allowing the user to change the compression degree of the first elastic member 33 and further adjust the magnitude of its elastic supporting force by adjusting the position of the limiting member 34 in the avoidance groove 35.

As shown in Fig. 8, Fig. 13 and Fig. 14, in one embodiment of the present application, a first limiting post 54 is provided on the first contact surface 51 of the angle pad 5, and a second limiting post 55 is provided on the second contact surface 52 of the angle pad 5. At the same time, a first plug hole 21 corresponding to the first limiting post 54 is provided on the first screen box 2, and a second plug hole corresponding to the second limiting post 55 is provided on the second screen box 4.

When the first contact surface 51 contacts the first screen box 2, the first limit post 54 is inserted into the first plug hole 21 to form a stable connection. Similarly, when the second contact surface 52 contacts the second screen box 4, the second limit post 55 is inserted into the second plug hole to form a stable connection. Through the cooperation between the limit post and the plug hole, the connection between the angle pad 5 and the screen box is more secure.

In one embodiment of the present application, the number of the first limiting posts 54 is at least two, and each first limiting post 54 is arranged in the vertical direction; the number of the second limiting posts 55 is at least two, and each second limiting post 55 is arranged in the horizontal direction. By staggering the first limiting posts 54 and the second limiting posts 55, it is avoided that the first limiting posts 54 are inserted into the second insertion hole, or the second limiting posts 55 are inserted into the first insertion hole 21, thereby preventing the angle pad 5 from being misplaced.

As shown in FIG. 8 , in one embodiment of the present application, in order to cope with diverse splicing requirements, a plurality of angle pads 5 with different support angles may be mounted on the first screen box 2 and/or the second screen box 4 according to actual conditions, thereby meeting the display requirements of different users and in different occasions.

As shown in Figures 15 and 16, in one embodiment of the present application, the locking plate assembly 1 includes a locking seat 11, a locking plate 12, and a second elastic member 13. The locking seat 11 is connected to the first screen box 2, and the locking plate 12 is slidably connected to the locking seat 11. The locking plate 12 is provided with a locking hole 121 and an unlocking hole 122 which are adjacently arranged and connected to each other, wherein the aperture of the locking hole 121 corresponds to the radial dimension of the neck of the pull rod 31, ensuring that the locking hole 121 can be stuck in the neck of the pull rod 31 to form a lock with the pull rod 31; the aperture of the unlocking hole 122 corresponds to the radial dimension of the large end of the conical head of the pull rod 31, ensuring that the conical head of the pull rod 31 can extend into or move out of the unlocking hole 122. When one end of the zipper assembly 3 is inserted into the locking hole 121, the locking piece assembly 1 is locked with the zipper assembly 3; when one end of the zipper assembly 3 is inserted into the unlocking hole 122, the locking of the locking piece assembly 1 with the zipper assembly 3 is released; one end of the second elastic member 13 is connected to the lock seat 11, and the other end of the second elastic member 13 is connected to the locking piece 12. The second elastic member 13 can generate appropriate elastic force to drive the zipper assembly 3 to switch smoothly between the locking hole 121 and the unlocking hole 122, thereby realizing flexible conversion between locking and unlocking.

The present application also provides a curved display, comprising a display screen body and the curved screen splicing structure in the above embodiment. The display screen body is respectively mounted on the first screen box 2 and the second screen box 4, and multiple display screen bodies are combined into a curved display under the splicing of the curved screen splicing structure. Since the curved display has the curved screen splicing structure in the above embodiment, it also has the advantages of the curved screen splicing structure in the above embodiment.

In one embodiment of the present application, in order to further enhance the stability of the curved display, at least two curved screen splicing structures are provided on the same side of the display screen body, and these curved screen splicing structures are arranged at intervals to form a plurality of connection points. By increasing the number of connection points, the splicing structure is more stable and less prone to deformation.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. A curved screen splicing structure, characterized by comprising: A locking piece assembly (1) is arranged on the first screen box (2); A zipper assembly (3) is arranged on the second screen box (4); A plurality of angle pads (5), each of the angle pads (5) comprising a first contact surface (51), a second contact surface (52) and a through hole (53); the first contact surface (51) and the second contact surface (52) are arranged at an angle; the first contact surface (51) is used to contact the first screen box (2); the second contact surface (52) is used to contact the second screen box (4); the through hole (53) is used for one end of the zipper assembly (3) to pass through the angle pad (5) and extend into the locking piece assembly (1); each angle pad (5) has a plurality of angles between the first contact surface (51) and the second contact surface (52); each angle pad (5) is detachably connected to the first screen box (2) and/or the second screen box (4); When the locking piece assembly (1) is locked and connected with the zipper assembly (3), the first screen box (2), the angle pad (5) and the second screen box (4) can be clamped and fixed in sequence. 2. The arc-shaped screen splicing structure as described in claim 1 is characterized in that the zipper assembly (3) includes a pull rod (31) and a sleeve structure (32), the sleeve structure (32) is sleeved on one end of the pull rod (31), and the other end of the pull rod (31) is used to extend into the locking plate assembly (1) and be locked with the locking plate assembly (1); when the pull rod (31) is locked with the locking plate assembly (1), the sleeve structure (32) abuts against the second screen box (4). 3. The arc screen splicing structure according to claim 2, characterized in that the sleeve structure (32) comprises a plurality of supporting bosses (321), each of the supporting bosses (321) extending along the axial direction of the pull rod (31) and arranged circumferentially around the pull rod (31); each of the supporting bosses (321) has a different protrusion length; when the pull rod (31) is locked and connected with the zipper assembly (3), the supporting boss (321) corresponding to the angle between the first contact surface (51) and the second contact surface (52) abuts against the second screen box (4); The second screen box (4) comprises an abutment boss (41), and the abutment boss (41) is used to abut against the corresponding supporting boss (321). 4. The arc-shaped screen splicing structure according to claim 3 is characterized in that the supporting boss (321) includes a supporting slope (3211) located at the end, and when the pull rod (31) is locked and connected with the zipper assembly (3), the supporting slope (3211) abuts against the abutment boss (41), and the inclination angle of the supporting slope (3211) relative to the radial plane of the pull rod (31) corresponds to the angle between the first contact surface (51) and the second contact surface (52). 5. The arc-shaped screen splicing structure according to claim 3 is characterized in that the supporting bosses (321) are arranged in pairs, the paired supporting bosses (321) have the same protrusion length, and are arranged on both sides of the pull rod (31) opposite to each other. 6. The arc-shaped screen splicing structure as described in claim 3 is characterized in that the sleeve structure (32) includes a first sleeve (322) and a second sleeve (323), the first sleeve (322) and the second sleeve (323) are both sleeved on the pull rod (31), the supporting boss (321) is provided at one end of the first sleeve (322), the other end of the first sleeve (322) is connected to the second sleeve (323) along a circumferential limit, the second sleeve (323) includes a limit hole (3231), the pull rod (31) is passed through the limit hole (3231), and is connected to the second sleeve (323) along a circumferential limit. 7. The arc-shaped screen splicing structure as described in claim 2 is characterized in that the zipper assembly (3) also includes an elastic limiting structure, which includes a first elastic member (33), a limiting member (34) and an avoidance groove (35) provided on the pull rod (31), the limiting member (34) is connected to the second screen box (4), one end of the first elastic member (33) abuts against the limiting member (34), the other end of the first elastic member (33) abuts against the sleeve structure (32), and one end of the limiting member (34) extends into the avoidance groove (35) and can move relative to the avoidance groove (35). 8. The arc screen splicing structure according to any one of claims 1 to 7, characterized in that a first limiting column (54) is provided on the first contact surface (51) of the angle pad (5), a second limiting column (55) is provided on the second contact surface (52) of the angle pad (5), a first plug hole (21) corresponding to the first limiting column (54) is provided on the first screen box (2), and a second plug hole corresponding to the second limiting column (55) is provided on the second screen box (4); When the first contact surface (51) contacts the first screen box (2), the first limiting column (54) is plugged into the first plug hole (21); when the second contact surface (52) contacts the second screen box (4), the second limiting column (55) is plugged into the second plug hole. 9. The arc screen splicing structure as described in any one of claims 1 to 7 is characterized in that the locking plate assembly (1) includes a locking seat (11), a locking plate (12) and a second elastic member (13), the locking seat (11) is connected to the first screen box (2), the locking plate (12) is slidably connected to the locking seat (11), and the locking plate (12) is provided with a locking hole (121) and an unlocking hole (122) which are adjacently arranged and connected to each other, when one end of the zipper assembly (3) is extended into the locking hole (121), the locking plate assembly (1) is locked and connected to the zipper assembly (3); when one end of the zipper assembly (3) is extended into the unlocking hole (122), the locking plate assembly (1) and the zipper assembly (3) are released; one end of the second elastic member (13) is connected to the locking seat (11), and the other end of the second elastic member (13) is connected to the locking plate (12). 10. An arc-shaped display, characterized in that it comprises a display screen body and the arc-shaped screen splicing structure as described in any one of claims 1 to 9; at least two of the arc-shaped screen splicing structures are arranged on the same side of the display screen body, and the two arc-shaped screen splicing structures are arranged at intervals from each other.