Embedded hinge and folding LED display screen advertising machine

Abstract

The invention relates to an embedded hinge and a folding LED display screen advisement player, the embedded hinge comprises a first fixing seat and a second fixing seat which are arranged in a mirror symmetry manner, and an arched first hinge and an arched second hinge which are assembled in a reverse staggered and stacked manner, the first hinge is rotatably connected with the first fixing seat, and the second hinge is rotatably connected with the second fixing seat; the first hinge body and the second hinge body are rotationally connected through the rotating middle shaft, guide grooves are formed in the first fixing base and the second fixing base, guide shafts are arranged at the ends of the first hinge body and the second hinge body, and the guide shafts can slide in the guide grooves, so that the hinges are turned over in a specified track. According to the embedded hinge, the rotation precision of the hinge is ensured through the first hinge and the second hinge which are assembled in a staggered and stacked mode in the reverse direction, the folding LED display screen advertising machine adopts the embedded hinge, the overturning and folding functions of the folding LED display screen advertising machine are achieved, the space utilization rate is increased during transportation, and the transportation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and in particular to an embedded hinge and a folding LED display screen advertising machine. Background Art

[0002] The traditional module front maintenance LED display advertising machine is too large, resulting in too much excess internal packaging space and high shipping costs. In addition, the module needs to be removed during packaging and transportation, otherwise the vibration generated during transportation will peel the module off the box, causing damage to the module. Summary of the Invention

[0003] Based on this, an embedded hinge and a folding LED display advertising machine are provided to improve the above-mentioned defects. The advertising machine is divided into two and folded up, thereby reducing the height of the packaging and reducing the shipping cost. When folding, the luminous surface and the luminous surface are folded together. Through the bending stroke of the hinge design, a gap is reserved for placing shock-absorbing cotton. The gap is filled with shock-absorbing cotton of corresponding thickness to prevent the module from loosening or falling during transportation.

[0004] To achieve the objectives of the present invention, the present invention is implemented through the following technical solutions: an embedded hinge, comprising a first fixed seat, a second fixed seat, a first hinge and a second hinge, the second hinge being rotatably connected to the second fixed seat, the first fixed seat and the second fixed seat having the same structure and being mirror-symmetrically arranged, the first fixed seat and the second fixed seat both being provided with mounting holes and fixed seat axis holes, the first hinge and the second hinge having the same structure, both being composed of a plurality of arched hinges, and the first hinge and the second hinge being assembled in reverse staggered stacking, the first hinge and the second hinge both being provided with an assembly axis hole, a center axis hole and a connecting axis hole, the assembly axis hole on the first hinge corresponding to the position of the fixed seat axis hole on the first fixed seat and being provided with a fixed seat axis therein, similarly, the assembly axis hole on the second hinge corresponding to the position of the fixed seat axis hole on the second fixed seat and being provided with a fixed seat axis therein; the center axis holes on the first hinge and the second hinge corresponding to each other and being provided with a rotating center axis therein, and the connecting axis holes on the first hinge and the second hinge are respectively provided with connecting axis.

[0005] When in use, the first fixing seat and the second fixing seat can be respectively embedded and fixed on the opposite end faces of the two connecting parts to be rotatably connected through the mounting holes, such as two LED display screen modules to be rotatably and foldedly connected. In this way, the first hinge end can be rotated relative to the first fixing seat, and the second hinge end can be rotated relative to the second fixing seat through the fixing seat axis. The relative rotation of the first hinge and the second hinge can be achieved by rotating the central axis, thereby achieving the relative rotation of the two connecting parts. In addition, the reverse staggered stacking assembly method of the first hinge and the second hinge effectively improves the high-precision operation of the hinge during the flipping process, and the first hinge and the second hinge fit more tightly, the force is more evenly distributed, and the rotational stability is high. The arched structure design of the first hinge and the second hinge will not interfere with the two connecting parts during their rotation, that is, the bottom of the first hinge and the second hinge will not abut and contact the connecting parts, and will not cause wear and other problems on the connecting parts.

[0006] Preferably, guide grooves are provided on the inner walls on both sides of the first fixed seat and the second fixed seat, guide shaft holes are provided at the ends of the first hinge and the second hinge, and guide shafts are provided in the guide shaft holes. Both ends of the guide shafts are placed in the guide grooves and can move up and down relative to the guide grooves. When the first fixed seat and the second fixed seat are folded 180° relative to each other, the guide shafts are supported on the top wall of the guide groove. The cooperation between the guide shafts and the guide grooves makes the hinge rotation more stable, and the 180° limit of the rotation of the first fixed seat and the second fixed seat is achieved through the guide grooves to avoid excessive rotation.

[0007] Preferably, hinge positioning grooves are provided on the outer wall surfaces of the first fixing seat and the second fixing seat, and positioning protrusions are provided on the inner sides of the ends of the first hinge and the second hinge. The positioning protrusions can slide up and down in the hinge positioning grooves, and cooperate with the reverse staggered stacking assembly of the first hinge and the second hinge to flip in the specified track, further ensuring the rotation accuracy and rotation stability of the hinge.

[0008] Preferably, the upper ends of the first fixing seat and the second fixing seat are provided with a protruding limiting inclined surface. When the first fixing seat and the second fixing seat are folded 180° relative to each other, the bottoms of the first hinge and the second hinge are just in contact with the limiting inclined surface, limiting the travel of the first hinge and the second hinge, and avoiding excessive rotation of the first hinge and the second hinge.

[0009] Preferably, the upper ends of the inner side walls of the first and second fixing seats are provided with avoidance grooves. When the first and second fixing seats are closed, the rotating central axis protrudes from the two ends of the first hinge and the second hinge and is placed in the avoidance grooves.

[0010] The present invention also provides a foldable LED display advertising machine, comprising a first display screen module, a second display screen module and any one of the above-mentioned embedded hinges, the first display screen module and the second display screen module both comprise a box body and a light-emitting module connected by telecommunications, the ends of the boxes are provided with embedded mounting seats, the mounting seats are provided with positioning holes and mounting screw holes, the bottoms of the first fixing seat and the second fixing seat are provided with positioning columns, the positioning columns are plugged and positioned with the positioning holes, the mounting holes and the mounting screw holes correspond to each other in the upper and lower axial directions, and are fixed by bolts, and when folded for storage or transportation, the internal The embedded hinge rotates to fold one side of the light-emitting modules of the first display screen module and the second display screen module relative to each other. When the embedded hinge rotates 180°, the two light-emitting modules are relative and parallel. Due to the arched structure design of the first hinge and the second hinge, the first hinge and the second hinge will not interfere with each other, that is, the light-emitting modules will not be worn during the rotation process, and a filling gap will be reserved between the two light-emitting modules. During folding, storage or transportation, shock-absorbing cotton can be filled in the gap to protect the light-emitting modules and avoid the risk of them being damaged or falling.

[0011] Preferably, a hook lock is provided in the upper end of the second display screen module, and a locking rod is provided in the connecting end of the first display screen module and the second display screen module. The hook lock can be hooked on the locking rod. When the first display screen module and the second display screen module are unfolded and used, they are fixed by the hook lock and the locking rod. In addition, the locking rod can be linked with the hook lock switch. The hook lock switch can be rotated by a tool such as a wrench, thereby driving the locking rod to rotate, thereby controlling the locking and unlocking of the lock hook and the locking rod.

[0012] Beneficial effects of the present invention: The above-mentioned embedded hinge can be embedded in the two rotating connecting parts to be rotated during actual use to realize the rotation and folding function of the connecting parts. The first hinge and the second hinge are assembled in reverse staggered stacking, which effectively improves the high-precision operation of the hinge during the flipping process. The first hinge and the second hinge fit more closely, the force is more evenly distributed, and the rotation stability is high; the arched structure design of the first hinge and the second hinge will not interfere with the two connecting parts during the rotation, that is, the bottom of the first hinge and the second hinge will not abut and contact the connecting parts, and will not cause wear and other problems on the connecting parts; the guide groove and the guide shaft are cooperated to realize 180° limit of the rotation of the first fixed seat and the second fixed seat to avoid excessive rotation. In addition, when the hinge is rotated to 180°, the limiting inclined surface is abutted and limited against the bottom surface of the first hinge and the second hinge to avoid excessive rotation of the first hinge and the second hinge.

[0013] The above-mentioned folding LED display advertising machine realizes its rotating folding function through the use of embedded hinges. When it needs to be folded for storage or transportation, it can be folded through the embedded hinges, which reduces its storage space and reduces its transportation cost. The light-emitting module does not need to be disassembled during transportation, and shock-absorbing cotton can be filled between the light-emitting modules to effectively prevent the light-emitting modules from being damaged and falling off, thereby effectively improving the utilization rate of the packaging space. Through the arched structure design of the first hinge and the second hinge, the first hinge and the second hinge will not interfere with each other, that is, the light-emitting module will not be worn during the rotation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the embedded hinge of the present invention in a 180° folded state; Figure 2 This is a schematic diagram of the structure of the embedded hinge of the present invention in a 90° folded state; Figure 3 This is a schematic structural diagram of the closed state of the embedded hinge of the present invention; Figure 4 This is an exploded view of the embedded hinge of the present invention; Figure 5 This is a cross-sectional view of the embedded hinge of the present invention. Figure 1 ; Figure 6 This is a cross-sectional view of the embedded hinge of the present invention. Figure 2 ; Figure 7 The folding state of the folding LED display advertising machine of the present invention is shown as follows Figure 1 ; Figure 8 The folding state of the folding LED display advertising machine of the present invention is shown as follows Figure 2 ; Figure 9 This is a left view of the folding LED display advertising machine of the present invention in a folded state; Figure 10 is a schematic diagram of a second display screen module of the present invention; Figure 11 This is a schematic diagram of the foldable LED display advertising machine of the present invention in the unfolded state.

[0015] in: 1. First fixing seat; 2. Second fixing seat; 3. First hinge; 4. Second hinge; 5. Mounting hole; 6. Fixing seat shaft hole; 7. Hinge positioning groove; 8. Guide groove; 9. Limiting inclined surface; 10. Assembly shaft hole; 11. Fixing seat shaft; 12. Center axis hole; 13. Rotating center axis; 14. Connecting shaft hole; 15. Connecting shaft; 16. Guide shaft hole; 17. Guide shaft; 18. Positioning protrusion; 19. Avoidance groove; 20. First display screen module; 21. Second display screen module; 22. Mounting seat; 23. Positioning column; 24. Positioning hole; 25. Mounting screw hole; 26. Hook lock; 27. Hook lock switch; 28. Box body; 29. Light-emitting module; 30. Shock-absorbing cotton. DETAILED DESCRIPTION

[0016] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the examples. The examples are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0017] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] like Figures 1 to 6As shown, the present invention provides an embedded hinge, comprising a first fixing base 1, a second fixing base 2, a first hinge 3 and a second hinge 4, the second hinge 4 being rotatably connected to the second fixing base 2, the first fixing base 1 and the second fixing base 2 having the same structure and being mirror-symmetrically arranged, the first fixing base 1 and the second fixing base 2 being provided with mounting holes 5 and fixing base shaft holes 6, the first hinge 3 and the second hinge 4 having the same structure, both consisting of a plurality of arched hinges, and the first hinge 3 and the second hinge 4 being staggered and stacked in opposite directions, and the first hinge 3 and the second hinge 4 being both provided with mounting holes 5 and fixing base shaft holes 6. An assembly axis hole 10, a central axis hole 12, and a connecting axis hole 14 are provided. The assembly axis hole 10 on the first hinge 3 corresponds to the position of the fixed seat axis hole 6 on the first fixed seat 1 and is provided with a fixed seat axis 11. Similarly, the assembly axis hole 10 on the second hinge 4 corresponds to the position of the fixed seat axis hole 6 on the second fixed seat 2 and is provided with a fixed seat axis 11; the central axis holes 12 on the first hinge 3 and the second hinge 4 correspond to each other and are provided with a rotating central axis 13. The connecting axis holes 14 on the first hinge 3 and the second hinge 4 are respectively provided with connecting axis 15.

[0020] When in use, the first fixing seat 1 and the second fixing seat 2 can be respectively embedded and fixed on the opposite end faces of the two connecting parts to be rotatably connected through the mounting holes 5, such as two LED display screen modules to be rotatably and folded and connected. In this way, the end of the first hinge 3 is rotated relative to the first fixing seat 1, and the end of the second hinge 4 is rotated relative to the second fixing seat 2 through the fixing seat axis 11. The relative rotation of the first hinge 3 and the second hinge 4 is achieved by rotating the central axis 13, thereby achieving the relative rotation of the two connecting parts; in addition, the reverse staggered stacking assembly method of the first hinge 3 and the second hinge 4 effectively improves the high-precision operation of the hinge during the flipping process, and the first hinge 3 and the second hinge 4 fit more closely, the force is more uniform, and the rotation stability is high; the arched structure design of the first hinge 3 and the second hinge 4 ensures that they will not interfere with the two connecting parts during rotation, that is, the bottoms of the first hinge 3 and the second hinge 4 will not abut and contact the connecting parts, and will not cause wear and other problems on the connecting parts.

[0021] Furthermore, guide grooves 8 are provided on the inner walls of both sides of the first fixing seat 1 and the second fixing seat 2, and guide shaft holes 16 are provided at the ends of the first hinge 3 and the second hinge 4, and guide shafts 17 are provided in the guide shaft holes 16. Both ends of the guide shaft 17 are placed in the guide grooves 8 and can move up and down relative to the guide grooves 8, such as Figure 5 As shown, when the first fixing seat 1 and the second fixing seat 2 are folded 180° relative to each other, the guide shaft 17 is abutted against the top wall of the guide groove 8. The guide shaft 17 cooperates with the guide groove 8 to make the hinge rotate more smoothly, so that the hinge can complete the flip from 0° to 180° in the specified trajectory, and the 180° limit of the rotation of the first fixing seat 1 and the second fixing seat 2 is achieved through the guide groove 8 to avoid excessive rotation.

[0022] Furthermore, hinge positioning grooves 7 are provided on the outer wall surfaces of the first fixing seat 1 and the second fixing seat 2, and positioning protrusions 18 are provided on the inner sides of the ends of the first hinge 3 and the second hinge 4. The positioning protrusions 18 can slide up and down in the hinge positioning grooves 7, and cooperate with the reverse staggered stacking assembly of the first hinge 3 and the second hinge 4 to slide in the specified track, further ensuring the rotation accuracy and rotation stability of the hinge.

[0023] Furthermore, the upper ends of the first fixing seat 1 and the second fixing seat 2 are both provided with a protruding limiting inclined surface 9. When the first fixing seat 1 and the second fixing seat 2 are folded 180 degrees relative to each other, as shown in FIG. Figure 6 As shown, the bottoms of the first hinge 3 and the second hinge 4 are just in contact with the limiting inclined surface 9, which limits the travel of the first hinge 3 and the second hinge 4 and prevents the first hinge 3 and the second hinge 4 from excessive rotation.

[0024] Furthermore, the upper ends of the inner side walls of the first fixing seat 1 and the second fixing seat 2 are provided with avoidance grooves 19. When the first fixing seat 1 and the second fixing seat 2 are closed, Figure 3 As shown, the rotating central axis 13 protrudes from the two ends of the first hinge 3 and the second hinge 4 and is placed in the avoidance groove 19.

[0025] like Figures 7 to 11 As shown, the present invention also provides a foldable LED display advertising machine, including a first display screen module 20, a second display screen module 21 and any one of the above-mentioned embedded hinges, the first display screen module 20 and the second display screen module 21 both include a box body 28 and a light-emitting module 29 connected by telecommunications, the end of the box body 28 is provided with an embedded mounting seat 22, the mounting seat 22 is provided with a positioning hole 24 and a mounting screw hole 25, the bottom of the first fixing seat 1 and the second fixing seat 2 are both provided with a positioning column 23, the positioning column 23 is plugged and positioned with the positioning hole 24, the mounting hole 5 and the mounting screw hole 25 correspond to each other in the upper and lower axial directions, and are fixed by bolt connection. When folded for storage or transportation, the embedded hinge is rotated to make the first display screen module 20 and the light-emitting module 29 side of the second display screen module 21 fold relative to each other, as shown in FIG. Figure 9 As shown, when the embedded hinge rotates 180°, the two light-emitting modules 29 are relative and parallel. Due to the arched structure design of the first hinge 3 and the second hinge 4, the first hinge 3 and the second hinge 4 will not interfere with the light-emitting module 29, that is, the light-emitting module 29 will not be worn during the rotation process, and a filling gap will be reserved between the two light-emitting modules 29. During folding, storage or transportation, shock-absorbing cotton 30 can be filled in the gap to protect the light-emitting module 29 and avoid the risk of it being damaged or falling.

[0026] Furthermore, a hook lock 26 is provided in the upper end of the second display screen module 21, and a lock rod (not shown in the figure) is provided in the connection end of the first display screen module 20 and the second display screen module 21. The hook lock 26 can be hooked on the lock rod. When the first display screen module 20 and the second display screen module 21 are unfolded for use, Figure 10 、 Figure 11 As shown, the hook lock 26 is secured to the locking rod. Furthermore, the locking rod 26 can be linked to a hook lock switch 27. Turning the hook lock switch 27 with a tool such as a wrench, in turn, drives the locking rod 26 to rotate, thereby controlling the locking and unlocking of the hook 26 and the locking rod. It should be noted that the hook lock 26 can also be provided in the first display module 20. In this case, the locking rod is correspondingly provided in the second display module 21. It is only necessary to ensure that the first and second display modules 20, 21 can be deployed and secured for use.

[0027] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An embedded hinge, characterized in that: The invention comprises a first fixed seat (1), a second fixed seat (2), a first hinge (3) and a second hinge (4), wherein the second hinge (4) is rotatably connected to the second fixed seat (2), the first fixed seat (1) and the second fixed seat (2) have the same structure and are arranged in a mirror-symmetrical manner, the first fixed seat (1) and the second fixed seat (2) are both provided with a mounting hole (5) and a fixed seat shaft hole (6), the first hinge (3) and the second hinge (4) have the same structure and are both composed of a plurality of arched hinges, and the first hinge (3) and the second hinge (4) are stacked and assembled in reverse staggered manner, and the first hinge (3) and the second hinge (4) are both provided with an assembly shaft hole (10) , a central axis hole (12), and a connecting axis hole (14); the assembly axis hole (10) on the first hinge (3) corresponds to the position of the fixed seat axis hole (6) on the first fixed seat (1) and is provided with a fixed seat axis (11); similarly, the assembly axis hole (10) on the second hinge (4) corresponds to the position of the fixed seat axis hole (6) on the second fixed seat (2) and is provided with a fixed seat axis (11); the central axis holes (12) on the first hinge (3) and the second hinge (4) correspond to each other and are provided with a rotating central axis (13); and the connecting axis holes (14) on the first hinge (3) and the second hinge (4) are provided with connecting axes (15) respectively.

2. The built-in hinge according to claim 1, characterized in that: Guide grooves (8) are provided on the inner walls of both sides of the first fixed seat (1) and the second fixed seat (2), guide shaft holes (16) are provided at the ends of the first hinge (3) and the second hinge (4), and guide shafts (17) are provided in the guide shaft holes (16). Both ends of the guide shafts (17) are placed in the guide grooves (8) and can move up and down relative to the guide grooves (8). When the first fixed seat (1) and the second fixed seat (2) are folded 180 degrees relative to each other, the guide shafts (17) abut against the top wall of the guide grooves (8).

3. The built-in hinge according to claim 1, characterized in that: Hinge positioning grooves (7) are provided on the outer wall surfaces of the first fixing seat (1) and the second fixing seat (2), and positioning protrusions (18) are provided on the inner sides of the ends of the first hinge (3) and the second hinge (4), and the positioning protrusions (18) can slide up and down in the hinge positioning grooves (7).

4. The built-in hinge according to claim 1, characterized in that: The upper ends of the first fixing seat (1) and the second fixing seat (2) are both provided with a protruding limiting inclined surface (9). When the first fixing seat (1) and the second fixing seat (2) are folded 180 degrees relative to each other, the bottoms of the first hinge (3) and the second hinge (4) are exactly in contact with the limiting inclined surface (9), thereby limiting the travel of the first hinge (3) and the second hinge (4).

5. The built-in hinge according to claim 1, characterized in that: The upper ends of the inner side walls of the first fixed seat (1) and the second fixed seat (2) are both provided with avoidance grooves (19). When the first fixed seat (1) and the second fixed seat (2) are closed, the rotating central axis (13) protrudes from the two ends of the first hinge (3) and the second hinge (4) and is placed in the avoidance grooves (19).

6. A folding LED display advertising machine, characterized in that: The invention comprises a first display screen module (20), a second display screen module (21) and an embedded hinge as claimed in any one of claims 1 to 5, wherein the first display screen module (20) and the second display screen module (21) both comprise a telecommunication-connected box (28) and a light-emitting module (29), an embedded mounting seat (22) is provided at the end of the box (28), a positioning hole (24) and a mounting screw hole (25) are provided in the mounting seat (22), a positioning column (23) is provided at the bottom of the first fixing seat (1) and the second fixing seat (2), the positioning column (23) and the positioning hole (24) are plugged and positioned, the mounting hole (5) and the mounting screw hole (25) correspond to each other in the upper and lower axial directions, and are fixed by bolt connection.

7. The built-in hinge according to claim 6, characterized in that: A hook lock (26) is provided in the upper end of the second display screen module (21), and a locking rod is provided in the connecting end of the first display screen module (20) and the second display screen module (21), and the hook lock (26) can be hooked on the locking rod.

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