Splicing device and display screen

Abstract

The present invention relates to a splicing device. It includes a first locking mechanism and a second locking mechanism, wherein the first locking mechanism is used to be fixed on a first display module, and the second locking mechanism is used to be fixed on a second display module spliced ​​with the first display module, wherein the first locking mechanism includes: a first locking seat; a locking block, which is slidably arranged on the first locking seat; a first positioning component, which is arranged on the first locking seat, and the first positioning component can cooperate with the locking block to limit the sliding of the locking block and the movement along the direction intersecting the sliding direction; and a second positioning component, which is arranged on the first locking seat, and the second positioning component can apply a force to the lock buckle to limit the vibration of the locking block along the direction intersecting the movement direction; when the fixed position of the locking block on the first locking seat is changed and the locking block is locked with the second locking mechanism, the splicing angle between the first and second display modules is adjusted. This improves the locking stability of the splicing device.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and in particular to a splicing device and a display screen comprising the splicing device. Background Art

[0002] During the installation of the curved display screen, two adjacent display modules need to be spliced ​​at a certain angle, and then the two display modules at the angle need to be fixed using a splicing device. However, the traditional splicing device will cause the angle between the two spliced ​​display modules to change, thereby affecting the installation accuracy of the entire curved display screen. Summary of the invention

[0003] A technical problem solved by the present invention is how to improve the locking stability of the splicing device.

[0004] A splicing device includes a first locking mechanism and a second locking mechanism, wherein the first locking mechanism is used to be fixed on a first display module, and the second locking mechanism is used to be fixed on a second display module spliced ​​with the first display module, wherein the first locking mechanism includes:

[0005] First lock seat;

[0006] A locking block, slidably disposed on the first locking seat;

[0007] a first positioning assembly, disposed on the first lock seat, the first positioning assembly being capable of cooperating with the lock block to limit the lock block from sliding and moving in a direction intersecting the sliding direction; and

[0008] a second positioning assembly, disposed on the first lock seat, the second positioning assembly being capable of applying a force to the lock catch to limit vibration of the lock block along a direction intersecting with the moving direction;

[0009] When the fixed position of the locking block on the first locking seat is changed and the locking block is locked with the second locking mechanism, the splicing angle between the first and second display modules is adjusted.

[0010] In one of the embodiments, a mounting cavity is provided on the first lock seat, and the locking block can be slidably matched with the mounting cavity.

[0011] In one embodiment, the first positioning assembly includes a first positioning column, there are at least two first positioning columns and they are arranged on the bottom wall of the mounting cavity, a plurality of first positioning holes are arranged at intervals on the locking block, and the first positioning column can be inserted into the first positioning hole; when the first positioning column cooperates with different first positioning holes, the fixed position of the locking block on the first lock seat can be changed.

[0012] In one embodiment, the second positioning assembly includes a second positioning column and a rotary handle, the second positioning column is threadedly connected to the first lock seat and can extend into the installation cavity, the rotary handle is connected to the portion of the second positioning column located outside the installation cavity, the first lock seat is provided with a plurality of second positioning holes at intervals, the second positioning column can be inserted into the second positioning hole; when the rotary handle is rotated to drive the second positioning column to rotate so as to increase the length of the second positioning column extending into the installation cavity, the second positioning column can press the locking block against the bottom wall of the installation cavity, and when the second positioning column cooperates with different second positioning holes, the fixed position of the locking block on the first lock seat can be changed.

[0013] In one of the embodiments, the first locking mechanism also includes a guide member and an elastic member, a receiving hole is opened on the locking block, the elastic member is located in the receiving hole and pressed between the guide member and the locking block, and the guide member can slide relative to the receiving hole; when the second positioning column reduces the length of extending into the installation cavity to stop pressing the locking block, the elastic member pushes the locking block away from the bottom wall of the installation cavity.

[0014] In one of the embodiments, a convex strip is provided on the side wall of the installation cavity, and a recessed groove is formed on the surface of the locking block to slideably cooperate with the convex strip; when the locking block slides to the extreme position relative to the first lock seat, the convex strip interferes with the side wall of the recessed groove so that the locking block is partially accommodated in the installation cavity.

[0015] In one of the embodiments, a clamping column is provided on the side wall of the installation cavity, and a plurality of clamping holes are opened on the locking block. The clamping holes are arranged at intervals on the surface of the locking block and can cooperate with the clamping column; when the locking block is adjusted to a fixed position on the first lock seat, the clamping column cooperates with the clamping holes corresponding to different fixed positions to prompt adjustment into place.

[0016] In one embodiment, the bottom wall of the installation cavity is in the shape of an arc surface, and the locking block can slide along the extension direction of the bottom wall.

[0017] In one embodiment, the second locking mechanism comprises:

[0018] Second lock seat;

[0019] A handle, rotatably connected to the second lock seat;

[0020] A sleeve rod, fixedly connected to the handle, the sleeve rod being capable of cooperating with a groove formed on the locking block; and

[0021] A control member, rotatably connected to the second lock seat, the control member comprising a stopper capable of abutting against the handle;

[0022] Among them, when the control member rotates to drive the stopper to move to the first position, the stopper stops abutting against the handle, and the handle can rotate to drive the sleeve rod to disengage from the groove to unlock; when the control member rotates to drive the stopper to move to the second position, the stopper can abut against the handle, the handle stops rotating and the sleeve rod cooperates with the groove to lock.

[0023] In one embodiment, the control member also includes a rotating rod rotatably connected to the second lock seat, the stop head is fixed to the end of the rotating rod, the handle is provided with a through hole, and the rotating rod is passed through the through hole; when the stop head moves to the first position and the handle rotates, the stop head can move relative to the handle in the through hole; when the stop head moves to the second position, the stop head abuts against the handle to prevent the handle from rotating.

[0024] In one of the embodiments, the second locking mechanism further includes an insert rod and a sliding rod connected to each other, the sliding rod is installed on the handle, and the second lock seat is provided with a sliding hole and a sliding groove connected to each other, the insert rod slides in cooperation with the sliding hole, the locking block is provided with a socket for the insert rod to be inserted therein, and the sliding rod can slide in the sliding groove; when the handle is rotated to drive the sliding rod to reciprocate in the sliding groove, the sliding rod drives the insert rod to reciprocate in the sliding hole to insert into or withdraw from the socket.

[0025] In one of the embodiments, both ends of the sleeve rod are respectively fixed on the handle, and a portion of the first lock seat is inserted into the space surrounded by the sleeve rod.

[0026] In one embodiment, the sleeve rod includes a first connecting section and a second connecting section which are arranged perpendicular to each other. There are two first connecting sections which are parallel to each other. One end of the first connecting section is fixed on the handle, and the other end of the first connecting section is connected to the second connecting section.

[0027] In one of the embodiments, the handle includes two ears spaced apart from each other, and the second lock seat includes a boss, wherein the boss is located in a gap between the two ears and is rotatably connected to the ears.

[0028] A display screen comprises any one of the above-mentioned splicing devices.

[0029] A technical effect of an embodiment of the present invention is that: since the first positioning assembly can effectively limit the sliding of the locking block and the movement along the direction intersecting the sliding direction, the second positioning assembly can limit the vibration of the locking block along the direction intersecting the movement, that is, the movement of the locking block along the directions indicated by the three coordinate axes in the spatial rectangular coordinate system is limited, when the locking block is fixed on the first locking seat, the shaking or vibration of the locking block relative to the first locking seat will be completely eliminated, thereby improving the stability and reliability of the fixing of the locking block. When the locking block is completely fixed and locked with the second locking mechanism, the splicing angle between the first display module and the second display module will not change due to the shaking or vibration of the locking block, thereby improving the splicing accuracy between the first display module and the second display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the overall assembly structure of a splicing device provided in an embodiment;

[0031] Figure 2 for Figure 1 A schematic structural diagram of the first locking mechanism;

[0032] Figure 3 for Figure 2 Schematic diagram of the decomposition structure;

[0033] Figure 4 for Figure 3 Schematic diagram of the structure in the first perspective;

[0034] Figure 5 for Figure 3 A schematic diagram of the structure at a second viewing angle;

[0035] Figure 6 for Figure 3 The structural diagram of the slider is included;

[0036] Figure 7 for Figure 6 A three-dimensional cross-sectional view of

[0037] Figure 8 for Figure 1 A schematic diagram of the structure of the second locking mechanism;

[0038] Fig. 9 for Figure 8 A three-dimensional cross-sectional view of

[0039] Fig.10 for Figure 8 Schematic diagram of the decomposition structure. DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0042] See also Figure 1 A splicing device 10 provided in one embodiment of the present invention includes a first locking mechanism 11 and a second locking mechanism 12. The first locking mechanism 11 is fixed on the first display module, and the second locking mechanism 12 is used on the second display module. The splicing between the first display module and the second display module can be achieved by locking the first locking mechanism 11 and the second locking mechanism 12.

[0043] See also Figures 1 to 6In some embodiments, the first locking mechanism 11 includes a first lock seat 100, a lock block 200, a first positioning assembly 300 and a second positioning assembly 400, and the first lock seat 100 is fixedly connected to the first display module. The lock block 200 is slidably arranged on the first lock seat 100. For example, the first lock seat 100 is provided with an installation cavity 101, and the installation cavity 101 is a structure with both ends open and circumferentially closed. The lock block 200 is slidably matched with the installation cavity 101. The bottom wall 102 of the installation cavity 101 is in the shape of an arc surface. The surface of the lock block 200 close to the bottom wall 102 of the installation cavity 101 (i.e., the lower surface) is also in the shape of an arc surface. When the lock block 200 is on the first lock seat 100, the bottom wall 102 of the installation cavity 101 and the lower surface of the lock block 200 are in contact with each other, and the lock block 200 can slide along the extension direction of the bottom wall 102 (i.e., the first direction). Of course, a slide rail is provided on the first lock seat 100, and the lock block 200 can also be slidably matched with the slide rail. The first positioning assembly 300 is provided on the first lock seat 100 and can cooperate with the lock block 200. The first positioning assembly 300 can limit the sliding of the lock block 200 along the first direction and the movement along the second direction. The second positioning assembly 400 is also provided on the first lock seat 100 and can apply a force to the lock buckle. The second positioning assembly 400 can limit the vibration of the lock block 200 along the third direction. The first direction, the second direction and the third direction can intersect vertically, thereby forming the directions indicated by the three coordinate axes in the spatial rectangular coordinate system. In the process of adjusting the splicing angle between the first display module and the second display module, the lock block 200 can be slid relative to the first lock seat 100 to change its fixed position on the first lock seat 100. When the lock block 200 with a changed fixed position is locked with the second locking mechanism 12, the splicing angle between the first display module and the second display module is set.

[0044] The first positioning assembly 300 includes a first positioning column 310, and there are at least two first positioning columns 310. The two first positioning columns 310 are fixed on the bottom wall 102 of the installation cavity 101. The locking block 200 is provided with a plurality of first positioning holes 210, and the first positioning holes 210 are located on the lower surface of the locking block 200. The first positioning holes 210 are arranged in two rows along the first direction on the locking block 200, and each row of first positioning holes 210 corresponds to one of the first positioning columns 310. When the two first positioning columns 310 are respectively inserted into the first positioning holes 210, the sliding of the locking block 200 along the first direction and the movement along the second direction are simultaneously restricted by the action of the two first positioning columns 310, that is, the forward and backward sliding and left and right movement of the locking block 200 are restricted. In the process of adjusting the splicing angle of the first display module and the second display module, the first positioning column 310 can be matched with different first positioning holes 210, thereby changing the fixed position of the locking block 200 on the first lock seat 100. In fact, the cooperation between the first positioning column 310 and each first positioning hole 210 corresponds to a fixed position of the locking block 200, and each fixed position of the locking block 200 corresponds to a splicing angle between the first display module and the second display module. For example, when the number of first positioning holes 210 in a row is five, there are five fixed positions of the locking block 200 on the first locking seat 100, and there are five splicing angles between the first display module and the second display module. The splicing angles can be -10°, -5°, 0°, 5° and 10°.

[0045] The second positioning assembly 400 includes a second positioning column 410 and a rotary handle 420. The second positioning column 410 is threadedly connected to the first lock seat 100 and can extend into the installation cavity 101. The rotary handle 420 is located outside the installation cavity 101 and is connected to the portion of the second positioning column 410 located outside the installation cavity 101. The first lock seat 100 is provided with a plurality of second positioning holes 220 at intervals. The second positioning holes 220 are located on the surface (i.e., the upper surface) of the lock block 200 away from the bottom wall 102 of the installation cavity 101. The second positioning holes 220 are arranged in a row along the first direction. The second positioning column 410 can When the handle 420 is turned forward to drive the second positioning column 410 to rotate, the length of the second positioning column 410 extending into the installation cavity 101 increases and is inserted into the second positioning hole 220. When the length of the second positioning column 410 extending into the installation cavity 101 is large enough, the second positioning column 410 applies a pressing force to the locking block 200, and the lower surface of the locking block 200 is close to the bottom wall 102 of the installation cavity 101. At this time, due to the action of the second positioning column 410, the vibration of the locking block 200 along the third direction is limited, that is, the up and down jumping of the locking block 200 is limited. In the process of adjusting the splicing angle of the first display module and the second display module, the second positioning column 410 can be matched with different second positioning holes 220, thereby changing the fixed position of the locking block 200 on the first lock seat 100. When the handle 420 is rotated in the opposite direction to drive the second positioning column 410 to rotate, the length of the second positioning column 410 extending into the installation cavity 101 is reduced and disengaged from the second positioning hole 220, and the pressing force of the second positioning column 410 on the locking block 200 is eliminated. At this time, the locking block 200 can move away from the bottom wall 102 of the installation cavity 101 in the third direction, thereby making the first positioning column 310 disengage from the first positioning hole 210, ensuring that the locking block 200 can slide in the first direction for adjustment of the fixed position. Similarly, the number of the second positioning holes 220 can be five, corresponding to the five fixed positions of the locking block 200 and the five splicing angles between the first display module and the second display module.

[0046] Therefore, through the action of the first positioning column 310 and the second positioning column 410, after the locking block 200 is fixed on the first locking seat 100, the movement of the locking block 200 along the first, second and third directions is completely restricted, thereby eliminating the shaking or vibration of the locking block 200 relative to the first locking seat 100, and improving the stability and reliability of the fixing of the locking block 200. When the locking block 200 is completely fixed and locked with the second locking mechanism 12, the splicing angle between the first and second display modules will not change due to the shaking or vibration of the locking block 200, thereby ensuring the splicing accuracy between the first and second display modules.

[0047] See also Figures 1 to 3 , Figure 6 and Figure 7In some embodiments, the first locking mechanism 11 further includes a guide member 270 and an elastic member 280. The guide member 270 may be a cylindrical guide column, and the elastic member 280 may be a spring. A receiving hole 290 is formed in a depression on the lower surface of the locking block 200. The elastic member 280 is located in the receiving hole 290 and pressed between the guide member 270 and the locking block 200. The guide member 270 can slide relative to the receiving hole 290. When the second positioning column 410 presses the locking block 200 and fixes it, the guide member 270 is completely received in the receiving hole 290 and its end abuts against the bottom wall 102 of the installation cavity 101, and the elastic member 280 stores energy. When the second positioning column 410 stops pressing the locking block 200, the elastic member 280 releases energy, the end of the guide member 270 still contacts the bottom wall 102 of the installation cavity 101, and the elastic member 280 pushes the locking block 200 to move in a direction away from the bottom wall 102 of the installation cavity 101 (upward). Under the joint action of the guide member 270 and the elastic member 280, when the second positioning column 410 stops pressing the locking block 200, the locking block 200 can automatically move upward, so that the first positioning column 310 is separated from the first positioning hole 210, so that the fixing position of the locking block 200 relative to the first lock seat 100 can be smoothly adjusted later.

[0048] In some embodiments, a convex strip 110 is provided on one of the side walls of the installation cavity 101, and a recessed groove 230 is formed on one of the side surfaces of the locking block 200. The recessed groove 230 can extend along the first direction, and the convex strip 110 is slidably matched with the recessed groove 230. When the locking block 200 slides forward to the extreme position along the first direction relative to the first lock seat 100, the convex strip 110 conflicts with the side wall of the recessed groove 230, and the convex strip 110 prevents the locking block 200 from continuing to slide forward, thereby preventing the locking block 200 from being completely pulled out of the installation cavity 101, so that a part of the locking block 200 continues to be accommodated in the installation cavity 101. Of course, a baffle 250 is also provided on the locking block 200. When the locking block 200 slides backward to the extreme position along the first direction relative to the first locking seat 100, the baffle 250 conflicts with the first locking seat 100. The baffle 250 prevents the locking block 200 from continuing to slide backward, and can also prevent the locking block 200 from being completely pulled out of the installation cavity 101. Therefore, through the action of the convex strip 110 and the baffle 250, the locking block 200 can always cooperate with the installation cavity 101, that is, the locking block 200 is always located on the first locking seat 100. During transportation and storage, the locking block 200 is prevented from separating from the first locking seat 100, thereby increasing the convenience of subsequent use of the entire splicing device 10.

[0049] A clamping column 120 is disposed on another side wall of the installation cavity 101, and a plurality of clamping holes 271 are provided on another side surface of the locking block 200. The clamping holes 271 are arranged at intervals along the first direction, and the clamping column 120 can cooperate with the clamping holes 271. In the process of adjusting the fixed position of the locking block 200 on the first lock seat 100, the clamping column 120 can cooperate with the clamping holes 271 at different fixed positions, and a sense of jamming will be generated when the two cooperate, thereby providing a prompt that the fixed position of the locking block 200 is adjusted in place.

[0050] See also Figure 1 , Figures 8 to 10 The second locking mechanism 12 includes a second lock base 500, a handle 600, a sleeve rod 700 and a control member 800. The second lock base 500 is used to be fixed on the second display module, and the second lock base 500 includes a boss 530. The handle 600 is rotatably connected to the second lock base 500, and the handle 600 includes two ears 620 arranged at intervals. The boss 530 is located in the gap between the two ears 620, and the boss 530 is rotatably connected to the ears 620 through the first rotating shaft 630.

[0051] The sleeve rod 700 is fixedly connected to the handle 600, and the two ends of the sleeve rod 700 are respectively fixed on the handle 600, and a part of the first lock seat 100 is arranged in the space surrounded by the sleeve rod 700. For example, the sleeve rod 700 may include a first connecting section 710 and a second connecting section 720 that are perpendicular to each other, and the first connecting section 710 is two and parallel to each other, one end of each of the first connecting sections 710 is fixed on the handle 600, and the other end of each of the first connecting sections 710 is connected to the first connecting section 710. At this time, the first connecting section 710 and the second connecting section 720 are connected to form a sleeve rod 700 with a "door" shape structure. Of course, the sleeve rod 700 can also be a curved arc structure. A groove 260 is provided on the lock block 200. When the second connecting section 720 of the sleeve rod 700 cooperates with the groove 260, the first locking mechanism 11 and the second locking mechanism 12 are locked with each other. When the second connecting section 720 of the sleeve rod 700 stops engaging with the groove 260 , the first locking mechanism 11 and the second locking mechanism 12 are unlocked from each other.

[0052] The control member 800 includes a rotating rod 820 and a stopper 810. One end of the rotating rod 820 is rotatably connected to the second lock seat 500 through a second rotating shaft 830. The stopper 810 is disposed at the other end of the rotating rod 820. A through hole 610 is also provided on the handle 600. The rotating rod 820 is passed through the through hole 610. When the rotating rod 820 rotates to drive the stopper 810 to move to the first position, the stopper 810 stops contacting the handle 600. At this time, the handle 600 can be rotated to drive the sleeve rod 700 to disengage from the groove 260 to achieve unlocking. In the process of rotating the handle 600, the stopper 810 can move relative to the handle 600 in the through hole 610. The through hole 610 provides an escape space for the stopper 810, thereby effectively preventing the stopper 810 from interfering with the rotation of the handle 600. When the rotating rod 820 rotates to drive the stopper 810 to move to the second position, the stopper 810 will abut against the handle 600 to prevent the handle 600 from rotating. At this time, the sleeve rod 700 cooperates with the groove 260 to achieve locking.

[0053] In some embodiments, the second locking mechanism 12 further includes an inter-connected plug rod 910 and a sliding rod 920, the sliding rod 920 is mounted on the ear 620 of the handle 600, the second lock seat 500 is provided with an inter-connected sliding hole 510 and a sliding groove 520, the sliding hole 510 may be a cylindrical hole, the plug rod 910 is slidably matched with the sliding hole 510, the lock block 200 is provided with an insertion hole 240, the plug rod 910 can be inserted into the insertion hole 240. The sliding groove 520 is arc-shaped, and the sliding rod 920 can slide in the sliding groove 520. When the handle 600 rotates to drive the sliding rod 920 to reciprocate in the arc-shaped sliding groove 520, the circular motion of the sliding rod 920 is converted into a reciprocating linear motion of the plug rod 910 in the sliding hole 510, and the sliding rod 920 can drive the plug rod 910 to reciprocate in the sliding hole 510 to insert or withdraw from the insertion hole 240. When the sleeve rod 700 cooperates with the groove 260 of the locking block 200 to lock, the insertion rod 910 will be inserted into the insertion hole 240 at the same time. Through the cooperation between the insertion rod 910 and the insertion hole 240, the stability of the locking of the first locking mechanism 11 and the second locking mechanism 12 can be further improved. When the sleeve rod 700 stops cooperating with the groove 260 of the locking block 200 to unlock, the insertion rod 910 will withdraw from the insertion hole 240 at the same time.

[0054] When the first locking mechanism 11 and the second locking mechanism 12 are locked, the first step is to press the stopper 810 by hand, and the rotating rod 820 drives the stopper 810 to move to the first position, and then the handle 600 is rotated counterclockwise, at which time the sliding rod 920 drives the insertion rod 910 to retract into the sliding hole 510. The second step is to fit the first locking seat 100 and the second locking seat 500 together and make the second connecting section 720 of the sleeve rod 700 located at a position corresponding to the groove 260 on the locking block 200. The third step is to rotate the handle 600 clockwise, the rotating rod 820 drives the stopper 810 to move to the second position, the second connecting section 720 cooperates with the groove 260, and the sliding rod 920 drives the insertion rod 910 to extend out of the sliding hole 510 until it is inserted into the insertion hole 240 of the locking block 200. At this time, the stopper 810 can prevent the handle 600 from rotating counterclockwise, and the first locking mechanism 11 and the second locking mechanism 12 are locked.

[0055] When the first locking mechanism 11 and the second locking mechanism 12 are unlocked, first, press the stopper 810 by hand, and the rotating rod 820 drives the stopper 810 to move to the first position; then, rotate the handle 600 counterclockwise, at this time, the sliding rod 920 drives the insertion rod 910 to retract into the sliding hole 510 until it is completely withdrawn from the insertion hole 240, and the second connecting section 720 disengages from the groove 260, and the first locking mechanism 11 and the second locking mechanism 12 are unlocked.

[0056] The present invention further provides a display screen, which includes the above-mentioned splicing device 10. Since the splicing device 10 has high locking stability, the installation accuracy of the display screen when it is installed in an arc can be greatly improved.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A splicing device, characterized in that: It includes a first locking mechanism and a second locking mechanism, wherein the first locking mechanism is used to be fixed on a first display module, and the second locking mechanism is used to be fixed on a second display module spliced ​​with the first display module, wherein the first locking mechanism includes: First lock seat; A locking block, slidably disposed on the first locking seat; a first positioning assembly, disposed on the first lock seat, the first positioning assembly being capable of cooperating with the lock block to limit the lock block from sliding and moving in a direction perpendicular to the sliding direction; and A second positioning assembly is disposed on the first lock seat, and the second positioning assembly can apply a force to the lock block to limit the vibration of the lock block along a direction perpendicular to the moving direction; When the fixed position of the locking block on the first locking seat is changed and the locking block is locked with the second locking mechanism, the splicing angle between the first and second display modules is adjusted; The first lock seat is provided with an installation cavity, and the locking block can be slidably matched with the installation cavity; The second positioning assembly includes a second positioning column and a rotary handle, the second positioning column is threadedly connected to the first lock seat and can extend into the installation cavity, the rotary handle is connected to the portion of the second positioning column located outside the installation cavity, the first lock seat is provided with a plurality of second positioning holes at intervals, the second positioning column can be inserted into the second positioning hole; when the rotary handle is rotated to drive the second positioning column to rotate to increase the length of the second positioning column extending into the installation cavity, the second positioning column can press the locking block against the bottom wall of the installation cavity, and when the second positioning column cooperates with different second positioning holes, the fixed position of the locking block on the first lock seat can be changed; The first locking mechanism also includes a guide member and an elastic member. A receiving hole is provided on the locking block. The elastic member is located in the receiving hole and is pressed between the guide member and the locking block. The guide member can slide relative to the receiving hole. When the second positioning column reduces the length of the second positioning column extending into the installation cavity to stop pressing the locking block, the elastic member pushes the locking block away from the bottom wall of the installation cavity.

2. The splicing device according to claim 1, characterized in that: The first positioning assembly includes a first positioning column, there are at least two first positioning columns and they are arranged on the bottom wall of the mounting cavity, a plurality of first positioning holes are arranged at intervals on the locking block, and the first positioning column can be inserted into the first positioning hole; when the first positioning column cooperates with different first positioning holes, the fixed position of the locking block on the first lock seat can be changed.

3. The splicing device according to claim 1, characterized in that: A convex strip is arranged on the side wall of the installation cavity, and a recess is formed on the surface of the locking block to form a groove that slidably cooperates with the convex strip; when the locking block slides to the extreme position relative to the first lock seat, the convex strip contacts the side wall of the groove so that the locking block is partially accommodated in the installation cavity.

4. The splicing device according to claim 1, characterized in that: A clamping column is arranged on the side wall of the installation cavity, and a plurality of clamping holes are opened on the locking block. The clamping holes are arranged at intervals on the surface of the locking block and can cooperate with the clamping column; when the locking block is adjusted to a fixed position on the first lock seat, the clamping column cooperates with the clamping holes corresponding to different fixed positions to prompt adjustment into place.

5. The splicing device according to claim 1, characterized in that: The bottom wall of the installation cavity is in the shape of an arc surface, and the locking block can slide along the extension direction of the bottom wall.

6. The splicing device according to claim 1, characterized in that: The second locking mechanism comprises: Second lock seat; A handle, rotatably connected to the second lock seat; A sleeve rod, fixedly connected to the handle, the sleeve rod being capable of cooperating with a groove formed on the locking block; and A control member, rotatably connected to the second lock seat, the control member comprising a stopper capable of abutting against the handle; Among them, when the control member rotates to drive the stopper to move to the first position, the stopper stops abutting against the handle, and the handle can rotate to drive the sleeve rod to disengage from the groove to unlock; when the control member rotates to drive the stopper to move to the second position, the stopper can abut against the handle, the handle stops rotating and the sleeve rod cooperates with the groove to lock.

7. The splicing device according to claim 6, characterized in that: The control member also includes a rotating rod rotatably connected to the second lock seat, the stop head is fixed to the end of the rotating rod, a through hole is opened on the handle, and the rotating rod is passed through the through hole; when the stop head moves to the first position and the handle rotates, the stop head can move relative to the handle in the through hole; when the stop head moves to the second position, the stop head abuts against the handle to prevent the handle from rotating.

8. The splicing device according to claim 6, characterized in that: The second locking mechanism also includes an insert rod and a sliding rod connected to each other, the sliding rod is installed on the handle, and the second lock seat is provided with a sliding hole and a sliding groove connected to each other, the insert rod is slidably matched with the sliding hole, and the locking block is provided with a socket for the insert rod to be inserted therein, and the sliding rod can slide in the sliding groove; when the handle is rotated to drive the sliding rod to reciprocate in the sliding groove, the sliding rod drives the insert rod to reciprocate in the sliding hole to insert or withdraw from the socket.

9. The splicing device according to claim 6, characterized in that: The two ends of the sleeve rod are respectively fixed on the handle, and a part of the first lock seat is inserted into the space surrounded by the sleeve rod.

10. The splicing device according to claim 9, characterized in that: The sleeve rod comprises a first connecting section and a second connecting section which are arranged perpendicular to each other. There are two first connecting sections which are parallel to each other. One end of the first connecting section is fixed on the handle, and the other end of the first connecting section is connected to the second connecting section.

11. The splicing device according to claim 6, characterized in that: The handle comprises two support ears which are spaced apart from each other, and the second lock seat comprises a boss which is located in the gap between the two support ears and is rotatably connected to the support ears.

12. A display screen, characterized in that: The invention comprises the splicing device according to any one of claims 1 to 11.

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