LED display screen frame and display screen

Abstract

The LED display screen frame comprises a frame body, a first clamping mechanism and a second clamping mechanism are perpendicularly arranged on the edge of the back face of the frame body, and an angle adjusting mechanism capable of adjusting the installation angle of the frame body is arranged on the first clamping mechanism and / or the second clamping mechanism. The first clamping mechanism comprises a first clamping block movably arranged on the side wall of the frame body in a penetrating mode and a first clamping groove capable of being clamped with the first clamping block in a matched mode, and a first rotary knob limiting sliding of the first clamping block is arranged at the end, close to the center of the frame body, of the first clamping block. The second clamping mechanism comprises a second clamping block movably arranged on the side wall of the frame body in a penetrating mode and a second clamping groove capable of being clamped with the second clamping block in a matched mode and locking the second clamping block. A plurality of third clamping blocks are arranged on the inner side wall of the frame body at intervals; meanwhile, the utility model discloses a display screen adopting the display screen frame. The device is simple in structure and convenient to install and maintain, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of display screens, and in particular to an LED display screen frame and display screen. Background Technology

[0002] LED displays have been widely used in industries such as stage performances, commercial performances, advertising, and exhibitions due to their excellent display effects and applicability. LED displays are generally composed of smaller unit screens assembled together. When a large display area is required, dozens or even hundreds of unit screens may need to be assembled together, consuming a significant amount of manpower and resources for installation and disassembly. Furthermore, during unit screen assembly, the interlocking latches on the sides of the unit screen frames cannot be adjusted, requiring manual alignment of two unit screen frames to ensure they are level before assembly, hindering rapid assembly. Additionally, existing unit screen frames use threaded connections to fix the LED modules to the frame, resulting in long assembly and disassembly times, inconvenience, and a cumbersome and inefficient process. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an LED display frame and a display screen.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: an LED display frame, including a frame body, wherein a first locking mechanism and a second locking mechanism are perpendicularly arranged on the back edge of the frame body, and the first locking mechanism and / or the second locking mechanism are provided with an angle adjustment mechanism that can adjust the installation angle of the frame body; the first locking mechanism includes a first locking block movably inserted through the side wall of the frame body and a first locking groove that can match and engage with the first locking block, the first locking block and the first locking groove are arranged on opposite sides of the frame body, and a first knob that limits the sliding of the first locking block is provided at the end of the first locking block near the center of the frame body; the second locking mechanism includes a second locking block movably inserted through the side wall of the frame body and a second locking groove that can match and lock the second locking block, the second locking block and the second locking groove are arranged on opposite sides of the frame body; a plurality of third locking blocks are arranged at intervals along the circumference of the frame body on the inner side wall of the frame body.

[0005] Preferably, the end of the first locking block outside the side wall of the frame body is a cross-shaped locking end, and the end of the first locking block inside the side wall of the frame body is provided with a stop block installed on the first locking block. A mounting sleeve with external threads is installed on the inner side wall of the frame body and is threaded to the mounting sleeve and can move and abut against the stop block. A first telescopic spring is fitted on the first locking block with its two ends correspondingly connected to the stop block and the mounting sleeve. The first locking groove is a receiving cavity that can accommodate the rotation of the locking end and has a cross-shaped opening on its side wall.

[0006] Preferably, the end of the second card block outside the side wall of the frame body is a spherical end with a hemispherical structure. The second card block is also provided with a card block groove around the circumference of the second card block near the spherical end. The second card block is fitted with a second telescopic spring with its two ends correspondingly connected to the second card block and the frame body. A movable card block that can match and engage in the card block groove is movably inserted through the groove wall of the second card groove.

[0007] Preferably, the angle adjustment mechanism is disposed on the first engaging mechanism; the angle adjustment mechanism includes a rotating component with an indicator scale at the top end, and a guide component sleeved on the rotating component to guide the rotation of the rotating component and cause the rotating component to be displaced in the axial direction; the back of the frame body is provided with a receiving groove at the edge, and a groove wall notch is provided on the groove wall on the side away from the center of the frame body; the tail end of the rotating component is rotatably disposed at the bottom of the receiving groove, and a driven component that rotates synchronously with the rotating component is sleeved on the rotating component; a plurality of first locking grooves are provided at intervals along the circumference of the driven component, which can be aligned sequentially with the groove wall notch during rotation; a third telescopic spring is also sleeved on the rotating component, with its two ends correspondingly connected to the rotating component and the bottom of the receiving groove.

[0008] Preferably, the bottom of the receiving groove is provided with a cylindrical support base, and a support cylinder is provided in the support base. The tail end of the rotating member is sleeved on the support cylinder and can rotate relative to the support cylinder and move axially in the support cylinder. The guide assembly includes a guide ring mounted on the top of the support base and capable of rotating relative to the rotating member, and a sliding member that slides on the surface of the guide ring away from the support base and is fixedly connected to the rotating member. Two protrusions extend from the surface of the guide ring away from the support base, with the center of the guide ring as the center of symmetry and extending circumferentially along the guide ring. The height of the protrusions gradually increases from one end to the other end, and a protrusion groove is provided at the higher end. An extension arm extends from the sliding member, abutting against the surface of the protrusion away from the guide ring and capable of sliding along the surface.

[0009] Preferably, the frame body has a first handle pivotally and / or fixedly connected to its edge.

[0010] An LED display screen adopts an LED display screen frame as described above. An LED module is detachably connected to the front of the frame body. A knob lock is rotatably provided on the back of the LED module, which can engage with a third locking block for positioning. A battery module for powering the LED module is provided in the middle of the back of the frame body.

[0011] Preferably, the back of the LED module is provided with a back groove, the bottom of the back groove is provided with a rotating column, the knob lock is formed into a T-shaped structure and a knob groove that is matched and rotated on the rotating column is provided at the bottom of its vertical part, and a positioning groove and a positioning protrusion that can be matched and engaged are provided between the groove wall of the knob groove and the rotating column.

[0012] Preferably, a second handle is provided on the back of the LED module.

[0013] Preferably, the front of the frame body is provided with a plurality of first magnets, and the back of the LED module is provided with a second magnet that can be magnetically attracted to the first magnets.

[0014] The beneficial effects of this utility model are as follows: This utility model uses an angle adjustment mechanism to adjust the angle position between the two frame bodies when assembling them, which facilitates the alignment between the two frames; the two different locking mechanisms make the assembled display screen structure more stable; the locking and positioning of the third locking block and the knob lock realizes the screwless installation of the LED module, which facilitates the disassembly and assembly of the LED module on the frame body, making installation and maintenance easier and improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the second slot on the back of the display screen facing forward in an embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure along the axial direction of the first card block in an embodiment of this utility model;

[0017] Figure 3 This is an embodiment of the present utility model. Figure 2 A magnified structural diagram of A in the middle;

[0018] Figure 4 This is a schematic diagram of the structure of the second card block on the back of the display screen facing forward in an embodiment of this utility model;

[0019] Figure 5 This is an embodiment of the present utility model. Figure 4 A magnified structural diagram of B in the diagram;

[0020] Figure 6 This is a cross-sectional structural diagram of the angle adjustment mechanism according to an embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of the follower component in an embodiment of the present utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the guide ring according to an embodiment of the present invention;

[0023] Figure 9 This is an exploded view of the first card block connection structure according to an embodiment of this utility model;

[0024] Figure 10 This is a schematic diagram of the structure of the second card block in an embodiment of this utility model;

[0025] Figure 11 This is a schematic diagram of the installation structure of the movable card block according to an embodiment of this utility model;

[0026] Figure 12 This is a schematic diagram of the structure of the back of the LED module of this utility model;

[0027] Figure 13 This is an embodiment of the present utility model. Figure 12 A magnified structural diagram of C;

[0028] Figure 14 This is a schematic diagram of the bottom surface of the knob lock according to an embodiment of the present invention;

[0029] Component names and serial numbers in the diagram: 1-Frame body; 10-Receiving groove; 11-Support base; 12-Support cylinder; 13-First handle; 100-Groove wall notch; 2-Angle adjustment mechanism; 20-Rotating component; 21-Guide assembly; 22-Driven component; 23-Third telescopic spring; 200-Bottom groove; 210-Guide ring; 211-Sliding component; 2100-Protrusion; 2101-Protrusion slot; 2110-Extension arm; 3-First locking block; 30-Locking end; 31-Stop block; 32-Mounting sleeve; 33- 4 - First telescopic spring; 5 - First slot; 6 - First knob; 6 - Second locking block; 60 - Spherical end; 61 - Locking block slot; 62 - Second telescopic spring; 63 - Movable locking block; 64 - Mounting plate; 640 - Mounting plate through hole; 641 - Hole wall through hole; 7 - Second slot; 8 - Third locking block; 9 - LED module; 90 - Knob lock; 91 - Battery module; 92 - Back groove; 93 - Rotating column; 94 - Second handle; 95 - Second magnet; 900 - Knob groove; 901 - Positioning groove; 930 - Positioning protrusion. Detailed Implementation

[0030] The present invention will be further described below with reference to embodiments, providing a clear and complete description. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. The implementation conditions used in the embodiments may be further adjusted according to the specific conditions of the manufacturer. Implementation conditions not specified are generally those used in conventional experiments. Furthermore, directional terms mentioned in the present invention, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying illustrations. The use of directional terms is for better and clearer explanation and understanding of the present invention, and is not intended to indicate or imply any necessary orientation of the present invention. Therefore, they should not be construed as limitations on the present invention.

[0031] Examples of embodiments of this utility model Figures 1 to 14As shown, an LED display frame includes a frame body 1. The frame body 1 includes a square ring-shaped frame made of die-cast aluminum and a cross-shaped support rod disposed therein. The interior of the frame body 1 is divided into four mounting blocks, and each mounting block is equipped with an LED module 9. The frame body 1 has a first locking mechanism and a second locking mechanism perpendicularly disposed on the back edge. That is, the first locking mechanism is disposed on the left and right sides of the frame body 1, and the second locking mechanism is disposed on the front and back sides of the frame body 1. The two locking mechanisms correspond to the connection when assembling the frame body 1 in different directions, making the assembled display structure more robust and stable. An angle adjustment mechanism 2 is provided on the first and / or second locking mechanisms to adjust the installation angle of the frame body 1. The angle adjustment mechanism 2 is used to adjust the angle between the two frame bodies 1 when they are assembled together, so as to facilitate the connection of the locking mechanisms. At this time, it is set on the first locking mechanism, the second locking mechanism, or both, depending on different usage requirements. The first locking mechanism includes a first locking block 3 that is movably inserted into the side wall of the frame body 1 and a first locking groove 4 that can be matched and engaged with the first locking block 3. The locking block 3 and the first locking slot 4 are set on opposite sides of the frame body 1. The first locking block 3 is provided with a first knob 5 that limits the sliding of the first locking block 3 near the center of the frame body 1. A side wall through hole is provided on the left side wall of the frame body 1, and then the first locking block 3 is slidably placed in the side wall through hole. The left and right ends of the first locking block 3 protrude from the left and right ends of the side wall through hole respectively. The right end of the first locking block 3 is near the center of the frame body 1, and the first knob 5 is set on the right end of the first locking block 3. By operating the first knob 5, the sliding of the first locking block 3 relative to the frame body 1 can be locked or unlocked.The first slot 4 is located on the right side wall of the frame body 1, corresponding to the first locking block 3. The opening of the first slot 4 faces to the right. At this time, a first locking block 3 is set at the front and rear positions of the left side wall of the frame body 1, and a first slot 4 is set at the front and rear positions of the right side wall of the frame body. When assembling the two display screen frames in the left-right direction, the first locking block 3 on one frame body 1 slides outward and extends into the first slot 4 on the other frame body 1 to form a lock. At the same time, the first locking block 3 is moved by the operation of the first knob 5. The position is fixed to prevent sliding, thereby locking the connection between the two frame bodies 1; the second engaging mechanism includes a second locking block 6 movably passing through the side wall of the frame body 1, and a second locking groove 7 that can match and lock the second locking block 6. The second locking block 6 and the second locking groove 7 are located on opposite sides of the frame body 1. The first engaging mechanism is located on the left and right sides of the frame body 1. At this time, the second engaging mechanism is located on the front and rear sides of the frame body 1. A side wall through hole is also provided on the rear side wall of the frame body 1. The second locking block 6 is slidably positioned on the side wall of the frame body 1. Within the sidewall through-hole of the sidewall, the front and rear ends of the second locking block 6 protrude correspondingly from the front and rear ends of the sidewall through-hole. The second locking slot 7 is set on the front sidewall of the frame body 1, with its opening facing forward. Similarly, two second locking blocks 6 are spaced apart on the rear sidewall of the frame body 1, and two corresponding second locking slots 7 are set on the front sidewall of the frame body 1. When the two display screen frames are assembled vertically, the second locking block 6 on one frame body 1 slides outward and extends into the second locking slot 7 on the other frame body 1. In step 7, the second locking block 6 is locked to prevent it from sliding further, thereby locking the connection between the two display screen frames; multiple third locking blocks 8 are arranged at intervals along the circumference of the inner wall of the frame body 1. The third locking blocks 8 are used to cooperate with the knob lock 90 of the LED module 9 to lock the installation of the LED module 9 on the frame body 1. Two third locking blocks 8 are arranged at intervals on the front and rear inner walls of each block of the frame body 1. When installing the LED module 9, the front and rear sides of the LED module 9 are fixed, and the installation structure is reliable.

[0032] Further improvements, such as Figures 1 to 3 , Figure 9As shown, the end of the first locking block 3 located outside the side wall of the frame body 1 is a cross-shaped locking end 30, and the end of the first locking block 3 located inside the side wall of the frame body 1 is provided with a stop block 31 installed on the first locking block 3. That is, the left end of the first locking block 3 is the cross-shaped locking end 30, and the stop block 31 is located at the right end of the first locking block 3 to prevent the first locking block 3 from sliding out of the frame body 1. A mounting sleeve 32 with external threads is fitted on the first locking block 3 and installed on the inner side wall of the frame body 1. The axis of the mounting sleeve 32 is coaxial with the axis of the side wall through hole on the frame body 1 used to install the first locking block 3. The sleeve 32 can slide relative to the mounting sleeve 32. The mounting sleeve 32 is located between the stop block 31 and the inner wall of the frame body 1. The first knob 5 is threadedly connected to the mounting sleeve 32 and can move and abut against the stop block 31. The first knob 5 has a cylindrical structure with internal threads on the inner wall and a knob protrusion extending from the outer wall to facilitate the rotation of the first knob 5. The first knob 5 is threadedly connected to the mounting sleeve 32 and is located between the stop block 31 and the mounting sleeve 32. By turning the first knob 5, the distance between the first knob 5 and the stop block 31 is adjusted. When the two display screen frames are assembled, the first locking block 3 on one frame body 1 moves outward from the frame body 1, which drives the stop block 31 towards the first... When knob 5 is moved, after the engaging end 30 of the first locking block 3 extends into the first slot 4 on the other frame body 1, the first locking block 3 is rotated so that the cross-shaped structure of the engaging end 30 and the opening of the first slot 4 are misaligned to prevent the first locking block 3 from falling out of the first slot 4. At this time, the stop block 31 and the first knob 5 abut against each other, which limits the sliding and rotation of the first locking block 3, thus locking the connection between the two frame bodies 1. When unlocking, turning the first knob 5 gives the stop block 31 room to move, which can drive the first locking block 3 to slide, and then rotate the first locking block 3 so that the engaging end 30 of the first locking block 3 is aligned with the opening of the first slot 4 on the other frame body 1. The first locking block 3 can then be disengaged from the first locking slot 4. The first locking block 3 is fitted with a first telescopic spring 33, which is connected at both ends to the stop block 31 and the mounting sleeve 32. The first telescopic spring 33 is provided so that when the locking end 30 of the first locking block 3 is engaged in the first locking slot 4, the locking end 30 adheres to the groove wall of the first locking slot 4 under the action of elastic force, thereby stabilizing the engagement of the first locking block 3 and the first locking slot 4. The first locking slot 4 is a receiving cavity that can accommodate the rotation of the locking end 30 and has a cross-shaped opening on the side wall. The cross-shaped opening facilitates the insertion of the locking end 30 into the first locking slot 4, and the rotation of the locking end 30 facilitates the cross-shaped structure of the locking end 30 and the cross-shaped opening to form an alternating state.

[0033] Further improvements, such as Figure 4 , Figure 10 and Figure 11As shown, the second locking block 6 has a hemispherical spherical end 60 at one end outside the side wall of the frame body 1. A locking block groove 61, circumferentially surrounding the second locking block 6, is also provided on the second locking block 6 near the spherical end 60. A second telescopic spring 62, with its two ends correspondingly connected to the second locking block 6 and the frame body 1, is fitted onto the second locking block 6. A movable locking block 63, capable of matching and engaging in the locking block groove 61, is movably inserted through the groove wall of the second locking groove 7. If an mounting plate 64 is installed on the inner side wall of the frame body 1, and the mounting plate 64 has a mounting plate through hole 640 coaxial with the side wall through hole of the frame body 1 for the second locking block 6, and the hole wall of the mounting plate through hole 640 has a hole wall through hole 641, the mounting plate through hole 640 constitutes... The second slot 7 has an inverted L-shaped movable block 63. The movable block 63 is slidably disposed in the through hole 641 of the hole wall. One end of the movable block 63 is outside the slot wall of the second slot 7, and the other end is located in the second slot 7. The end face of the movable block 63 located in the second slot 7 is provided with an arched notch. When the two display screen frames are assembled, when the spherical end 60 of the second block 6 on one frame body 1 is inserted into the second slot 7 on the other frame body 1, the movable block 63 is first pulled outward from the through hole 641 of the hole wall. After the spherical end 60 is inserted into the second slot 7, the movable block 63 is pushed into the second slot 7. The side wall of the arched notch is engaged in the slot 61, thereby fixing the second block 6 in the second slot 7.

[0034] Further improvements, such as Figure 1 , Figure 2 , Figures 4 to 8As shown, the angle adjustment mechanism 2 is mounted on the first engaging mechanism. The angle adjustment mechanism 2 includes a rotating member 20 with an indicator scale at its top end, and a guide assembly 21 fitted onto the rotating member 20 to guide its rotation and cause axial displacement. The indicator scale on the rotating member 20 indicates the rotation angle of the rotating member 20. For example, if the indicator scale is set on a ring, and the ring is fitted onto the rotating member 20 while being fixedly mounted on the frame body 1, the rotating member 20 can rotate relative to the ring. While rotating along the guide assembly 21, the rotating member 20 also moves axially along the guide assembly 21, thus adjusting the angle when the two frame bodies are assembled. A receiving groove 10 is provided on the edge of the back of the frame body 1, and a groove wall notch 100 is provided on the side wall of the receiving groove 10 away from the center of the frame body 1. The rotating member 20... The tail end of the 0 is rotatably set at the bottom of the receiving groove 10, and a follower 22 is sleeved on the rotating part 20, which rotates synchronously with the rotating part 20 in the receiving groove 10. Multiple first slots 4 are arranged at intervals along the circumference of the follower 22, which can be aligned with the groove wall notch 100 in turn during rotation. The follower 22 rotates synchronously with the rotating part 20. After rotating to a certain position, the groove wall notch 100 is aligned with one of the multiple first slots 4. At the same time, when the rotating part 20 moves along the axial direction of the guide component 21, it also moves the follower 22, thus adjusting the position of the first slot 4 in the axial direction. A third telescopic spring 23 is also sleeved on the rotating part 20, with its two ends correspondingly connected to the bottom of the receiving groove 10. The third telescopic spring 23 is used to buffer the force applied by the rotating part 20 to the bottom of the receiving groove 10 and to facilitate the rotation adjustment of the rotating part 20.

[0035] A cylindrical support base 11 is provided at the bottom of the receiving groove 10. A supporting cylinder 12 is provided in the support base 11. The support base 11 is integrally formed with the frame body 1. The supporting cylinder 12 is located in the center of the support base 11 and is spaced apart from the inner wall of the support base 11. The tail end of the rotating component 20 is sleeved on the supporting cylinder 12 and can rotate relative to the supporting cylinder 12 and move axially in the supporting cylinder 12. A circular bottom groove 200 is provided at the bottom end of the rotating component 20. The supporting cylinder 12 is matched and locked in the base groove 200. The lower part of the rotating component 20 is located between the support base 11 and the supporting cylinder 12. In the gap between 2, the depth of the base groove 200 is greater than the height of the supporting cylinder 12, so the rotating member 20 can rotate relative to the supporting cylinder 12 and move axially in the supporting cylinder 12 at the same time; the guide assembly 21 includes a guide ring 210 mounted on the top of the support base 11 and rotatable relative to the rotating member 20, and a sliding member 211 that slides on the surface of the guide ring 210 away from the support base 11 and is fixedly connected to the rotating member 20. The guide ring 210 is fixedly mounted on the top of the support base 11 with screws, so that the guide ring 210 is fixedly connected to the frame body 1, guiding The ring 210 will not shift with the movement of the rotating member 20, while the sliding member 211 is fixedly sleeved on the rotating member 20 and moves synchronously with it. Two protrusions 2100 extend from the surface of the guide ring 210 away from the support base 11, symmetrically centered on the center of the guide ring 210 and extending circumferentially along the guide ring 210. The height of the protrusions 2100 gradually increases from one end to the other, and a protrusion groove 2101 is provided at the higher end, meaning the protrusion 2100 is arc-shaped. The two protrusions 2100 are symmetrically arranged at both ends radially on the top surface of the guide ring 210. When the slider 211 slides along the top surface of the protrusion 2100, it gradually rises or falls in the axial direction of the rotating member 20, which causes the rotating member 20 to be displaced in the axial direction of the rotating member 20. This causes the driven member 22 to be displaced in the axial direction of the rotating member 20, thus adjusting the position of the first slot 4. An extension arm 2110 extends from the slider 211 and abuts against the surface of the protrusion 2100 away from the guide ring 210 and can slide along the surface. The slider 211 presses against the top surface of the protrusion 2100 through the extension arm 2110, and the extension arm 2110 slides along the top surface of the protrusion 2100.

[0036] Further improvements, such as Figure 1 and Figure 4As shown, a first handle 13 is pivotally and / or fixedly connected to the edge of the frame body 1. The first handle 13 facilitates the removal of the frame body 1 or the display screen formed after the LED module 9 is installed on the frame body 1. The pivotal structure can be configured such that the first handle 13 is U-shaped, and two connecting posts are provided on the back of the frame body 1. The top surface of each connecting post is provided with a notch, and a pivot is provided in each of the two notches. Then, the two ends of the first handle 13 are fitted onto the two pivots respectively. If the first handle 13 is pivotally connected to one side of the back of the frame body 1, one or more other first handles 13 can also be fixedly connected to the other side of the back of the frame body 1.

[0037] An LED display screen, such as Figure 1 , Figure 2 , Figure 4 , Figures 12 to 14As shown, an LED display frame as described above is used. An LED module 9 is detachably connected to the front of the frame body 1. A knob lock 90 is rotatably provided on the back of the LED module 9, which can engage with the third locking block 8 for positioning. The LED module 9 is detachably connected to the front of the frame body 1 by engaging the knob lock 90 and the third locking block 8. The knob lock 90 enables screwless installation of the LED module 9, which is convenient to use. The LED module 9 consists of a back plate and multiple LED lights arranged in a matrix on the front of the back plate. The knob lock 90 is rotatably provided on the back plate of the LED module 9 and protrudes from the surface of the back plate. A battery module 91 that supplies power to the LED module 9 is provided in the middle of the back of the frame body 1. The battery module 91 is composed of multiple batteries and is installed on the support rod of the frame body 1. Regarding the structure and installation of the knob lock 90, the LED module 9 has a back groove 92 on its back side, and a rotating post 93 is provided at the bottom of the groove 92. The knob lock 90 has a T-shaped structure, and a knob groove 900 that matches and rotates on the rotating post 93 is provided at the bottom of its vertical part. The horizontal part of the knob lock 90 forms a slot with the surface of the back plate. A rotating post through hole is provided at the top of the rotating post 93, and a lock through hole is provided in the middle of the top of the knob lock 90, which is also the middle of the bottom of the knob groove 900. The rotating post 93 is inserted into the knob groove 900, and then a bolt is used to pass through the lock through hole and the rotating post through hole and connect with a nut to rotate the knob lock 90 onto the rotating post 93. A positioning groove 901 and a positioning protrusion 930 that can match and engage are provided between the groove wall of the knob groove 900 and the rotating post 93. The positioning protrusion 930 is provided on the outer wall of the rotating post 93, and the positioning groove 901 is provided on the knob groove 900. On the groove wall of the 00, four positioning grooves 901 are equally spaced around the circumference of the knob groove 900. After the knob lock 90 is rotated by an angle, the positioning protrusion 930 engages in the positioning groove 901 to lock the knob lock 90. ​​When the LED module 9 is installed on the frame body 1, the knob lock 90 is rotated, and the third locking block 8 on the frame body 1 is locked in the slot formed by the knob lock 90 and the back plate of the LED module 9 to complete the installation of the LED module 9. When disassembling, simply turn the knob lock 90 to make the third locking block 8 disengage from the slot formed by the knob lock 90 and the back plate of the LED module 9. If four third locking blocks 8 are set in each installation block of the frame body 1, two third locking blocks 8 are equally spaced on the inner wall of the front side of the installation block, and two third locking blocks 8 are also equally spaced on the inner wall of the rear side of the installation block. Correspondingly, two positioning posts 930 are also equally spaced on the front and rear edges of the back of the LED module 9.

[0038] Further improvements, such as Figure 1 , Figure 4 and Figure 12As shown, a second handle 94 is provided on the back of the LED module 9, which makes it convenient to take the LED module 9 out of the box.

[0039] Further improvements, such as Figure 12 As shown, the front of the frame body 1 is provided with multiple first magnets (not shown in the figure), and the back of the LED module 9 is provided with a second magnet 95 that can be magnetically attracted to the first magnets. This allows the LED module 9 to be installed on the frame body 1 using both snap-fit ​​and magnetic attraction methods. After the LED module 9 and the frame body 1 are connected by the knob lock 90 and the third locking block 8, the magnetic attraction of the first magnet and the second magnet 95 further improves the stability of the connection structure between the LED module 9 and the frame body 1.

[0040] Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An LED display screen frame, characterized in that, The system includes a frame body, on which a first engaging mechanism and a second engaging mechanism are perpendicularly arranged on the edge of the back side. The first engaging mechanism and / or the second engaging mechanism are provided with an angle adjustment mechanism to adjust the installation angle of the frame body. The first engaging mechanism includes a first locking block movably inserted through the side wall of the frame body and a first locking groove that matches and engages with the first locking block. The first locking block and the first locking groove are located on opposite sides of the frame body. A first knob is provided at the end of the first locking block near the center of the frame body to limit the sliding of the first locking block. The second engaging mechanism includes a second locking block movably inserted through the side wall of the frame body and a second locking groove that matches and locks the second locking block. The second locking block and the second locking groove are located on opposite sides of the frame body. Multiple third locking blocks are spaced apart along the circumference of the inner side wall of the frame body.

2. The LED display frame according to claim 1, characterized in that, The first locking block has a cross-shaped locking end located outside the side wall of the frame body. The first locking block has a stop block installed on the end located inside the side wall of the frame body. A mounting sleeve with external threads is fitted on the first locking block and installed on the inner side wall of the frame body. The first knob is threadedly connected to the mounting sleeve and can move and abut against the stop block. A first telescopic spring is fitted on the first locking block with its two ends correspondingly connected to the stop block and the mounting sleeve. The first locking groove is a receiving cavity with a cross-shaped opening on its side wall that can accommodate the rotation of the locking end.

3. The LED display frame according to claim 1, characterized in that, The second card block has a hemispherical end located outside the side wall of the frame body. The second card block also has a card block groove that surrounds the second card block around its circumference at a position near the spherical end. The second card block is fitted with a second telescopic spring with its two ends corresponding to the second card block and the frame body. A movable card block that can match and engage in the card block groove is movably inserted through the groove wall of the second card groove.

4. The LED display frame according to claim 1, characterized in that, The angle adjustment mechanism is mounted on the first engaging mechanism; the angle adjustment mechanism includes a rotating component with an indicator scale at the top, and a guide assembly sleeved on the rotating component to guide the rotation of the rotating component and cause the rotating component to move axially; the back of the frame body has a receiving groove at its edge, and the receiving groove has a groove wall notch on the side wall away from the center of the frame body; the tail end of the rotating component is rotatably mounted at the bottom of the receiving groove, and a driven component that rotates synchronously with the rotating component is sleeved on the rotating component; the side wall of the driven component has a plurality of first locking grooves that can be aligned sequentially with the groove wall notch during rotation; the rotating component is also sleeved with a third telescopic spring whose two ends are correspondingly connected to the rotating component and the bottom of the receiving groove.

5. The LED display frame according to claim 4, characterized in that, The bottom of the receiving groove is provided with a cylindrical support base, and a support cylinder is provided in the support base. The tail end of the rotating member is sleeved on the support cylinder and can rotate relative to the support cylinder and move axially in the support cylinder. The guide assembly includes a guide ring mounted on the top of the support base and capable of rotating relative to the rotating member, and a sliding member that slides on the surface of the guide ring away from the support base and is fixedly connected to the rotating member. Two protrusions extend from the surface of the guide ring away from the support base, with the center of the guide ring as the center of symmetry and extending circumferentially along the guide ring. The height of the protrusions gradually increases from one end to the other end, and a protrusion groove is provided at the higher end. An extension arm extends from the sliding member, abutting against the surface of the protrusion away from the guide ring and capable of sliding along the surface.

6. The LED display frame according to claim 1, characterized in that, The frame body is pivotally and / or fixedly connected to a first handle at its edge.

7. An LED display screen, characterized in that, The LED display frame as described in any one of claims 1-6 is provided, wherein an LED module is detachably connected to the front of the frame body, a knob lock is rotatably provided on the back of the LED module to engage with a third locking block, and a battery module for powering the LED module is provided in the middle of the back of the frame body.

8. The LED display screen according to claim 7, characterized in that, The back of the LED module is provided with a back groove, and a rotating column is provided at the bottom of the back groove. The knob lock is formed into a T-shaped structure and a knob groove that is matched and rotated on the rotating column is provided at the bottom of its vertical part. A positioning groove and a positioning protrusion that can be matched and engaged are provided between the groove wall of the knob groove and the rotating column.

9. The LED display screen according to claim 7, characterized in that, A second handle is provided on the back of the LED module.

10. The LED display screen according to claim 7, characterized in that, The front of the frame body is provided with a plurality of first magnets, and the back of the LED module is provided with a second magnet that can be magnetically attracted to the first magnets.

Images