Hasp type locking device with adjustable radian

Abstract

The utility model relates to a radian-adjustable hasp type locking device. The radian-adjustable hasp type locking device comprises a hasp side assembly and a locking side assembly. The hasp side assembly comprises a fixing base capable of being fixed to an LED display unit and a U-shaped hasp rotationally connected to the fixing base. The locking side assembly comprises a lock seat capable of being fixed on another LED display unit, a lock sleeve and a locking assembly, the top of the lock seat is provided with first arc-shaped teeth arranged in an arc shape, the lock sleeve selectively sleeves the lock seat in a sliding mode along a certain radian, and the locking assembly can be rotatably connected to the lock sleeve between a locking position and a releasing position; the locking assembly is provided with second arc-shaped teeth arranged in an arc shape. The U-shaped hasp can rotate to be detachably connected with the lock sleeve. The locking device has the advantages that the locking assembly can rotate between the locking position and the releasing position, and angle adjustment of the lock sleeve is controlled. The U-shaped hasp rotates to a proper angle to be locked with the locking side assembly, and the connecting and locking effect with a certain radian is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to a buckle-type locking device with adjustable arc. Background Art

[0002] LED display splicing technology combines multiple LED display units into a large screen to meet the needs of different environments and display requirements. With the development of the times, customers have more and more personalized demands for LED displays. Traditional flat LED displays can no longer meet the needs of today's customers. There is a demand for LED displays that are differentiated from flat LED displays, such as LED displays with a certain curvature.

[0003] In the prior art, the connection structures commonly used to connect two LED display units in LED displays with a certain curvature include angle locks and arc-jointed locks. Angle locks can be used to assemble LED display units at specific angles, but their angle adjustment is limited. Arc-jointed locks allow for greater angle adjustment than angle locks, but they suffer from poor structural stability.

[0004] Therefore, there is an urgent need for a connection structure that can adjust the curvature and has good structural stability to adapt to LED display screens with a certain curvature. Utility Model Content

[0005] (1) Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a buckle-type locking device with adjustable curvature, which solves the technical problems in the prior art that the connecting structure cannot adjust the curvature and has poor structural stability.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0009] The embodiment of the utility model provides a snap-on locking device, the snap-on locking device includes a snap-on side component and a locking side component that can be respectively connected to two adjacent LED display units; the snap-on side component includes a fixing base that can be fixed on one LED display unit, and a U-shaped snap rotatably connected to the fixing base; the locking side component includes a lock base that can be fixed on another LED display unit, a lock sleeve and a locking component, the top of the lock base has a first arc-shaped tooth arranged in an arc, the lock sleeve can be optionally slidably mounted on the lock base along a certain arc, the locking component can be rotatably connected to the lock sleeve between a locking position and a release position, the locking component has a second arc-shaped tooth arranged in an arc; when the locking component is in the locking position, the second arc-shaped tooth engages with the first arc-shaped tooth, and the lock sleeve is locked to the lock base; when the locking component is in the releasing position, the second arc-shaped tooth disengages from the first arc-shaped tooth, and the lock sleeve can slide along a certain arc relative to the lock base; the U-shaped snap can be rotated to be detachably connected to the lock sleeve.

[0010] Optionally, the locking assembly includes a self-locking push button and a limit block; a plurality of first positioning beads are embedded in the bottom of the self-locking push button, the limit block is embedded in the top of the lock sleeve, the middle part of the limit block is rotatably supported on the lock sleeve, the second arc-shaped tooth is provided at one end of the limit block, and the other end of the limit block is provided with a slide groove, and two groups of front and rear limit grooves are provided on the limit block along the extension direction of the slide groove; the self-locking push button is slidably connected to the slide groove and can move along the slide groove between the locking position and the release position; the top of the lock sleeve is provided with a first positioning surface and a receiving groove for accommodating the limit block, the first positioning surface When the self-locking push button is in the locked position, the first positioning bead head is embedded in the front limiting groove, and the bottom of the self-locking push button is in contact with the first positioning surface to limit the rotation of the limiting block; the self-locking push button is pushed toward the rear end of the slide groove until the bottom of the self-locking push button is disengaged from the first positioning surface, the first positioning bead is disengaged from the front limiting groove, and moves to be embedded in the rear limiting groove. The self-locking push button is in the release position where it can be pressed down. When subjected to downward pressure, the self-locking push button drives the limiting block to rotate so that the second arc-shaped tooth is disengaged from the first arc-shaped tooth.

[0011] Optionally, the locking assembly also includes a connecting shaft and a torsion spring; the connecting shaft passes through the limit block and the torsion spring and is fixedly connected to the locking sleeve, one end of the free end of the torsion spring abuts against the limit block, and the other end abuts against the first arc-shaped tooth; when the self-locking push button is in the release position, the self-locking push button is pressed down, and the self-locking push button pushes the limit block to rotate, and the limit block drives the torsion spring to store energy, and the second arc-shaped tooth disengages from the first arc-shaped tooth; the downward pressure on the self-locking push button is released, and the reset force of the torsion spring drives the limit block to rotate in the opposite direction, and the second arc-shaped tooth engages with the first arc-shaped tooth.

[0012] Optionally, a second positioning bead is embedded in the top of the lock sleeve, and a number of positioning points arranged in an arc with the same interval angle are provided on the top of the lock seat. The positioning points are constructed as a structure of through-ball-shaped holes, and the bead head of the second positioning bead can be selectively embedded in any positioning point; the lock sleeve and the limit block are also provided with a buckling groove for detachable connection of the U-shaped buckle.

[0013] Optionally, the bottom of the self-locking push button is connected to a sliding shaft and a stop portion, the sliding shaft can be slidably passed through the slide groove, the stop portion is connected to one end of the sliding shaft and is located in the accommodating groove, and the slide groove is a U-shaped groove; when the self-locking push button is completely separated from the first positioning surface, the first positioning bead is embedded in the limiting groove on the rear side; when the stop portion stops at the side wall of the accommodating groove, the first positioning bead is embedded in the limiting groove on the front side.

[0014] Optionally, a second positioning surface is provided in the accommodating groove. When subjected to downward pressure, the self-locking push button drives the limit block to rotate to abut the second positioning surface, and the second arc-shaped tooth disengages from the first arc-shaped tooth.

[0015] Optionally, the lock seat is provided with a first arc-shaped track and a first connecting pin fixedly connected to the lock sleeve, and the first connecting pin slides in the first arc-shaped track; the lock sleeve is provided with a second arc-shaped track and a second connecting pin fixedly connected to the lock seat, and the second connecting pin slides in the second arc-shaped track; the cooperation between the first arc-shaped track and the first connecting pin, as well as the cooperation between the second arc-shaped track and the second connecting pin, jointly limit the ability of the lock sleeve to slide along a certain arc relative to the lock seat.

[0016] Optionally, an angle value of a corresponding angle is set at a position of the second connecting pin corresponding to the locking sleeve, and the adjustment angle value of the locking sleeve is the angle value displayed on the scale corresponding to the second connecting pin.

[0017] Optionally, a plurality of positioning blocks are provided on both sides of the front end of the locking sleeve, and the positioning blocks are embedded with a third positioning bead; a positioning block groove that fits with the positioning block is provided on the fixing seat, and a positioning bead groove that fits with the third positioning bead is provided in the positioning block groove to limit the relative displacement of the buckle side component and the locking side component.

[0018] Optionally, the locking sleeve and the top of the fixing seat are both provided with a penetrating circular hole.

[0019] (3) Beneficial effects

[0020] The present invention provides a snap-on locking device comprising a snap-on side assembly and a locking side assembly, each of which can be connected to two adjacent LED display units. The snap-on side assembly comprises a fixing base that can be fixed to one LED display unit, and a U-shaped snap rotatably connected to the fixing base. The locking side assembly comprises a lock base that can be fixed to another LED display unit, a locking sleeve, and a locking assembly. The top of the lock base has first curved teeth arranged in an arc, the locking sleeve can be selectively slidably mounted on the lock base along a certain arc, and the locking assembly can be rotatably connected to the locking sleeve between a locked position and a released position. The locking assembly has second curved teeth arranged in an arc. When the locking assembly is in the locked position, the second curved teeth engage with the first curved teeth, locking the locking sleeve to the lock base. When the locking assembly is in the released position, the second curved teeth disengage from the first curved teeth, allowing the locking sleeve to slide relative to the lock base along a certain arc. The U-shaped snap can be rotated to be detachably connected to the locking sleeve. Compared to existing technologies, the locking assembly can rotate between a locked position and a released position, controlling the angle of the lock sleeve to adjust the connection angle between two adjacent LED display units. The U-shaped buckle rotates to the appropriate angle and locks with the locking side assembly, achieving a connection and locking effect with a certain arc. At the same time, the cooperation between the lock sleeve, lock base, and locking assembly ensures the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the adjustable arc buckle-type locking device of Example 1 below, wherein the buckle-side component and the locking-side component are in the locked position. To show more components as clearly as possible, the U-shaped buckle component is partially transparent;

[0022] Figure 2 for Figure 1 A front view of a locking side assembly of a snap-on locking device is shown;

[0023] Figure 3 for Figure 2 The schematic cross-sectional view of the locking side assembly along the symmetry axis of the slideway is shown;

[0024] Figure 4 for Figure 1 An exploded view of the locking side assembly of the snap-on locking device is shown;

[0025] Figure 5 for Figure 1 A front view of a buckle side assembly in a buckle-type locking device is shown;

[0026] Figure 6 for Figure 5 A side view of a buckle-side assembly in a buckle-type locking device is shown, wherein, in order to clearly show the positioning bead groove, components that may be obstructed are removed;

[0027] Figure 7 for Figure 5 The schematic cross-sectional view of the buckle side assembly along the symmetry axis of the slideway is shown;

[0028] Figure 8 for Figure 1 An exploded view of the buckle side assembly is shown;

[0029] Figure 9 This is a schematic cross-sectional view of the locking side component of the buckle-type locking device with adjustable curvature along the symmetry axis of the slide groove of the following embodiment 2, wherein the locking component is in the released position and the self-locking push button is in the depressed state.

[0030] [Description of Reference Numerals]

[0031] 1: Buckle side assembly; 2: Locking side assembly; 3: Fixed seat; 4: U-shaped buckle; 5: Lock seat; 6: Lock sleeve; 7: Locking assembly; 8: First arc-shaped tooth; 9: Second arc-shaped tooth; 10: Self-locking push button; 11: Limit block; 12: First positioning bead; 13: Slide groove; 14: Limit groove; 15: First positioning surface; 16: Accommodating groove; 17: Connecting shaft; 18: Torsion spring; 19: Second positioning bead; 20: Positioning point; 21: Buckling groove; 22: Sliding shaft; 23: Stop portion; 24: Second positioning surface; 25: First arc-shaped track; 26: First connecting pin; 27: Second arc-shaped track; 28: Second connecting pin; 29: Positioning block; 30: Third positioning bead; 31: Positioning block groove; 32: Positioning bead groove. DETAILED DESCRIPTION

[0032] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below with reference to the accompanying drawings and through specific embodiments. Figure 1 The orientation is referenced.

[0033] Example 1:

[0034] Reference Figures 1 to 8 This embodiment provides a snap-on locking device with an adjustable curvature, used to secure two adjacent LED display units relative to each other at a predetermined angle. Specifically, the snap-on locking device of this embodiment includes a snap-on side component 1 and a locking side component 2 for securing two adjacent LED display units (not shown in the drawings), as described in detail below.

[0035] The buckle side component 1 in this embodiment includes a fixing base 3 that can be fixed on an LED display unit, and a U-shaped buckle 4 rotatably connected to the fixing base 3. The locking side component 2 includes a lock base 5 that can be fixed on another LED display unit, a lock sleeve 6 and a locking component 7. The top of the lock base 5 has a first arc-shaped tooth 8 arranged in an arc. The lock sleeve 6 can be optionally slidably mounted on the lock base 5 along a certain arc. The locking component 7 can be rotatably connected to the lock sleeve 6 between a locking position and a release position. The locking component 7 has a second arc-shaped tooth 9 arranged in an arc. When the locking component 7 is in the locking position, the second arc-shaped tooth 9 engages with the first arc-shaped tooth 8, and the lock sleeve 6 is locked to the lock base 5, and the structure is stable. When the locking component 7 is in the release position, the second arc-shaped tooth 9 disengages from the first arc-shaped tooth 8, and the lock sleeve 6 can slide along a certain arc relative to the lock base 5. The U-shaped buckle 4 can be rotated to be detachably connected to the lock sleeve 6. In this embodiment, the top of the lock base 5 is the opposite side of the lock base 5 away from the position where the lock base 5 is fixed to the LED display unit, and can also be called the outer end of the lock base 5. The angle adjustment of the lock sleeve 6 is achieved by sliding the lock sleeve 6 and the lock seat 5 along a certain arc, and the locking assembly 7 can be moved between the locking position and the release position to adjust the angle of the lock sleeve 6 and the locked state. Specifically, one end of the locking assembly 7 is provided with a second arc tooth 9 arranged in an arc, and the top of the lock seat 5 is provided with a first arc tooth 8 arranged in an arc. The first arc tooth 8 can be engaged and fixed with the second arc tooth 9, and the first arc tooth 8 can also be disengaged from the second arc tooth 9 and separated. When the locking assembly 7 is rotated to the release position, the first arc tooth 8 and the second arc tooth 9 are in a disengaged and separated state, thereby, the lock sleeve 6 is no longer fixed, so that the lock sleeve 6 can be adjusted to a desired angle. After adjusting to the desired angle, the locking device is moved to the locking position, the first arc tooth 8 and the second arc tooth 9 are in a meshed and fixed state, the angle of the lock sleeve 6 is fixed, the U-shaped buckle 4 is rotated to the desired angle, and the connection between the U-shaped buckle 4 and the lock sleeve 6 can achieve a connection locking effect of a certain arc.

[0036] In order to enable the locking assembly 7 to move between the locking position and the release position and to enable the locking assembly 7 to have a self-locking function when in the locking position, the locking assembly 7 includes a self-locking push button 10 and a limit block 11 and the following corresponding specific designs.

[0037] Specifically, the top of the lock sleeve 6 is provided with a receiving groove 16 for accommodating the limit block 11. The limit block 11 is embedded in the receiving groove 16 at the top of the lock sleeve 6. At the same time, the middle portion of the limit block 11 is rotatably supported on the lock sleeve 6 via a connecting shaft 17. The second arc-shaped tooth 9 is provided at one end of the limit block 11, and the other end of the limit block 11 is provided with a slide groove 13. The slide groove 13 extends in the front-to-back direction, which is the arrangement direction of the buckle-side component 1 and the locking-side component 2 during actual use. The self-locking push button 10 can be connected to the slide groove 13 in a bidirectional sliding manner along the extension direction of the slide groove 13, so that the self-locking push button 10 can move along the slide groove 13 between the locking position and the release position. The top of the lock sleeve 6 is also provided with a first positioning surface 15, which is arranged adjacent to the receiving groove 16 in the front-to-back direction.

[0038] The stopper 11 is also provided with two sets of front and rear stop grooves 14 extending along the direction of the slideway 13. Each set of stop grooves 14 includes two stop grooves 14, located on either side of the slideway 13. To match, two first positioning beads 12 are embedded in the bottom of the self-locking push button 10. The number of first positioning beads 12 is the same as the number of stop grooves 14 in each set of stop grooves 14.

[0039] When the self-locking push button 10 is in the locked position, the head of the first positioning bead 12 is embedded in the front limiting groove 14, and the bottom of the self-locking push button 10 is in contact with the first positioning surface 15. The first positioning surface 15 limits the rotation of the self-locking push button 10, thereby limiting the rotation of the limit block 11.

[0040] The self-locking push button 10 is pushed toward the rear end of the slide groove 13 until the bottom of the self-locking push button 10 disengages from the first positioning surface 15 and moves to the top of the corresponding receiving groove 16; the first positioning bead 12 then disengages from the front limiting groove 14 and moves to embed in the rear limiting groove 14; at this time, the self-locking push button 10 is in the release position where it can be pressed downward. When subjected to downward pressure, the self-locking push button 10 drives the limiting block 11 to rotate. Since the second arc-shaped tooth 9 and the self-locking push button 10 are at both ends of the hinged position of the limiting block 11 and the locking sleeve 6, the movement of the self-locking push button 10 toward the receiving groove 16 causes the end where the second arc-shaped tooth 9 is located to move outward, thereby disengaging the second arc-shaped tooth 9 from the first arc-shaped tooth 8. As described above, the self-locking push button 10 controls the movement of the locking assembly 7 between the locked position and the released position.

[0041] More specifically, the bottom of the self-locking push button 10 is provided with a plurality of cylindrical holes, the specific size of which is adapted to the first positioning bead 12. The first positioning bead 12 is a prior art, comprising a cylindrical shell, a spring, and a bead head. The bead head extrusion spring is clamped at the opening of the cylindrical shell. When squeezed, the spring begins to store energy, allowing the bead head to retract. When no longer squeezed, the spring drives the bead head outward. The gap between the limit block 11 and the lock sleeve 6 is relatively small, allowing only a small rotation of the limit block 11. The outer shape of the limit block 11 is adapted to the lock sleeve 6, and the height is the same as that of the lock sleeve 6 on both sides, without a clear groove. The first positioning surface 15 is relatively flat with respect to the limit block 11. The first positioning surface 15 and the receiving groove 16 are arranged in front and back, and the first positioning surface 15 is higher than the receiving groove 16. The front and rear ends of the slide groove 13 are provided with limiting grooves 14 corresponding to the first positioning beads 12. The head of the first positioning beads 12 can be embedded in the limiting groove 14. When the head of the first positioning beads 12 is embedded in the limiting groove 14, the head of the first positioning beads 12 is partially embedded. When there is no external force, the limiting block 11 and the self-locking push button 10 are in a relatively fixed state, and the front and rear end limiting grooves 14 correspond to the self-locking push button 10 of the locking device in the locking position and the release position. When the self-locking push button 10 is in the locking position, the head of the first positioning bead 12 is embedded in the front limiting groove 14, and the bottom of the self-locking push button 10 is in contact with the first positioning surface 15. The self-locking push button 10 is immovable in the upward, downward and away from the limiting block 11, and the locking sleeve 6 is fixed and the angle cannot be adjusted. The self-locking push button 10 is moved toward the rear end of the slide groove 13 by external force, and the self-locking push button 10 gradually no longer fits with the first positioning surface 15, and the head of the first positioning bead 12 gradually separates from the limiting groove 14 at the front end. When the head of the first positioning bead 12 at the bottom of the self-locking push button 10 is embedded in the limiting groove 14 at the rear end of the slide groove 13, the self-locking push button 10 is completely separated from the first positioning surface 15, and the self-locking push button 10 is only fitted with the limiting block 11. At this moment, the self-locking push button 10 is in the release position where it can be pressed down.

[0042] To reset the locking assembly 7 after it has completed its function, the locking assembly 7 further includes a torsion spring 18. The connecting shaft 17 passes through the stop block 11 and the torsion spring 18, and is fixedly connected to the locking sleeve 6. The free end of the torsion spring 18 abuts the stop block 11 at one end, and the other end abuts the first arcuate tooth 8 at the other end. When the self-locking push button 10 is in the released position, pressing the self-locking push button 10 causes the stop block 11 to rotate, which in turn drives the torsion spring 18 to store energy, causing the second arcuate tooth 9 to disengage from the first arcuate tooth 8. When the self-locking push button 10 is released, the reset force of the torsion spring 18 drives the stop block 11 to rotate in the opposite direction, causing the second arcuate tooth 9 to engage with the first arcuate tooth 8. The connecting shaft 17 passes through the limit block 11 and the torsion spring 18 and is fixedly connected to the lock sleeve 6. Specifically, the torsion spring 18 is located in the middle of the limit block 11, the connecting shaft 17 passes through one end of the limit block 11 and then passes through the torsion spring 18, and then passes through the other end of the limit block 11. The connecting shaft 17 is fixedly connected to the lock sleeve 6, and the limit block 11 and the torsion spring 18 can rotate around the connecting shaft 17. One end of the free end of the torsion spring 18 abuts against the limit block 11, and the other end abuts against the first arc tooth 8. When the self-locking push button 10 is in the release position, the self-locking push button 10 is pressed down, and the self-locking push button 10 drives the limit block 11 to displace, and the free end of the torsion spring 18 abutting against the limit block 11 is squeezed, and the torsion spring 18 starts to store energy, and the limit block 11 starts to rotate. The tail of the limit block 11 is tilted, and the second arc tooth 9 is tilted, and the first arc tooth 8 and the second arc tooth 9 are disengaged. At this time, the lock sleeve 6 can slide. When the pressure on the self-locking push button 10 is released, the restoring force of the torsion spring 18 will drive the bead head of the limit block 11 to rotate back to its original position, and the tail of the limit block 11 will rotate downward, and the second arc-shaped tooth 9 at the tail of the limit block 11 will fall and engage with the first arc-shaped tooth 8, and the lock sleeve 6 and the lock seat 5 will be fixed as a whole, and the lock sleeve 6 cannot rotate.

[0043] In order to enable the self-locking push button 10 to be slidably connected to the slide groove 13 and to be able to move along the slide groove 13 between the locked position and the released position, the bottom of the self-locking push button 10 is connected to a sliding shaft 22 and a stop portion 23. The sliding shaft 22 is slidably arranged in the slide groove 13, connected to one end of the sliding shaft 22 and located in the accommodating groove 16, that is, the stop portion 23 and the self-locking push button 10 are separated on the inside and outside sides of the limit block 11.

[0044] In this embodiment, the slide groove 13 is a U-shaped groove, with its opening facing rearward and its opening facing outward, corresponding to the sidewall of the receiving groove 16. In Example 1, the self-locking button 10 is completely disengaged from the first positioning surface 15 when the sliding shaft 22 stops at the closed end of the U-shaped groove and the first positioning bead 12 engages with the rear retaining groove 14. When the stopper 23 stops at the sidewall of the receiving groove 16, the first positioning bead 12 engages with the front retaining groove 14. When the first positioning bead 12 engages with the retaining groove 14, a sensory cue can be provided to the user, such as a vibration or a sound upon engagement.

[0045] Specifically, the sliding shaft 22 and the stopper 23 can be formed in a variety of ways, and can be formed in any of the following ways:

[0046] Method 1: The sliding shaft 22 and the stopper 23 are integrally formed with the self-locking push button 10, for example, by injection molding.

[0047] Method 2: The sliding shaft 22 and the stopper 23 are the screw and head of the same bolt, and the sliding shaft 22 is screwed into the threaded hole at the bottom of the self-locking push button 10;

[0048] Method 3: The sliding shaft 22 is fixed to the bottom of the self-locking push button 10 . The sliding shaft 22 has an internal threaded hole, and a bolt is screwed into the internal threaded hole. The head of the bolt constitutes a stopper 23 .

[0049] In order to control the travel of the front and rear ends of the limit block 11 when the self-locking push button 10 is pressed downward, a second positioning surface 24 is provided in the receiving groove 16. When subjected to downward pressure, the self-locking push button 10 drives the limit block 11 to rotate until the front end abuts the second positioning surface 24, and the second arc-shaped teeth 9 disengage from the first arc-shaped teeth 8. The downward pressure of the self-locking push button 10 drives the limit block 11 to rotate. When the front end of the limit block 11 rotates to the second positioning surface 24, it cannot continue to rotate downward. At this time, the second arc-shaped teeth 9 at the rear end of the limit block 11 just disengage from the first arc-shaped teeth 8, preventing the limit block 11 from rotating to the rear end abutting the first arc-shaped teeth 8 on the lock seat 5, which would affect the sliding effect of the lock sleeve 6.

[0050] To achieve a better fixation effect on the lock sleeve 6, a second positioning bead 19 is embedded in the top of the lock sleeve 6. The top of the lock base 5 is provided with several positioning points 20 arranged in an arc at equal angles. The positioning points 20 are constructed as through-holes with spherical bands. The bead head of the second positioning bead 19 can be inserted into any positioning point 20. The lock base 5 is provided with several positioning points 20 at equal angles. Inserting the second positioning bead 19 into any positioning point 20 can achieve a certain strength of connection between the lock sleeve 6 and the lock base 5. When the lock sleeve 6 moves on the lock base 5, the second positioning bead 19 can be inserted into the positioning point 20 to provide a certain degree of damping for the movement of the lock sleeve 6. When pushed by an external force, the second positioning bead 19 can be inserted into the next adjacent positioning point 20. The lock sleeve 6 and the limit block 11 are also provided with a snapping groove 21 for the removable connection of the U-shaped buckle 4. The U-shaped buckle 4 can simultaneously cooperate with the snapping groove 21 on the lock sleeve 6 and the snapping groove 21 on the limit block 11 to achieve fixation. As a result, the matching surface with the U-shaped buckle 4 is greatly increased, thereby increasing the connection strength.

[0051] Specifically, the lock base 5 is provided with a first curved track 25 and a first connecting pin 26 fixedly connected to the lock sleeve 6. The first connecting pin 26 slides within the first curved track 25. The lock sleeve 6 is provided with a second curved track 27 and a second connecting pin 28 fixedly connected to the lock base 5. The second connecting pin 28 slides within the second curved track 27. Furthermore, the first curved track 25 and the second curved track 27 have the same curvature and curvature. The coordination between the first curved track 25 and the first connecting pin 26, as well as the coordination between the second curved track 27 and the second connecting pin 28, together restricts the lock sleeve 6 from sliding along a certain arc relative to the lock base 5. The first connecting pin 26 extends through the lock base 5 and is fixedly connected to the lock sleeve 6. This means that the lock sleeve 6 drives the first connecting pin 26 to slide within the first curved track 25. The sliding distance is related to the length of the first curved track 25. To ensure smoother sliding, the first curved track 25 is similar in shape to the gap between the lock sleeve 6 and the lock base 5, thereby enhancing smoother sliding. Furthermore, the lock sleeve 6 is provided with a second curved track 27 and a second connecting pin 28 fixedly connected to the lock base 5. The second connecting pin 28 penetrates the lock sleeve 6 and the lock base 5, is fixedly connected to the lock base 5, and slides within the second curved track 27. The second curved track 27 is constructed as a curved track groove structure that passes through the left and right sides of the lock sleeve 6. The dual curved track configuration limits the maximum sliding range of the lock sleeve 6 using the curved track, and the fixing effect is improved. The upper and lower ranges of movement are restricted, preventing the lock sleeve 6 from separating from the lock base 5.

[0052] To specifically indicate the adjustment angle of the lock sleeve 6, the second connecting pin 28 is positioned at the position corresponding to the lock sleeve 6, with the corresponding angle value indicated on the scale corresponding to the second connecting pin 28. As the lock sleeve 6 slides along the curved track, the second connecting pin 28 displays the specific value on the side of the lock sleeve 6 corresponding to the lock sleeve 6. When the angle is zero, the engaging surface between the lock base 5 and the buckle-side component 1 is perpendicular to the ground. Sliding the lock sleeve 6 to the sides corresponds to positive and negative angles. In actual field use, adjustment can be made based on the desired arc size for optimal results.

[0053] To prevent misalignment between the buckle-side assembly 1 and the locking-side assembly 2, the locking sleeve 6 is provided with a plurality of positioning blocks 29 on either side of the front end. These positioning blocks 29 are embedded with third positioning beads 30. The fixing base 3 is provided with positioning block grooves 31 that engage with the positioning blocks 29. Within these positioning block grooves 31 is a positioning bead groove 32 that engages with the third positioning beads 30, thereby limiting relative movement between the buckle-side assembly 1 and the locking-side assembly 2. The LED display units on both sides are restricted from moving away from each other by the U-shaped buckle 4 and the buckling groove 21. If the contact surfaces of the buckle side component 1 and the locking side component 2 were two planes, they would easily slide, which would cause the buckle side component 1 and the locking side component 2 to disengage. Therefore, a positioning block 29 and a third positioning bead 30 are provided at the front end of the locking sleeve 6. The fixing seat 3 is provided with a positioning block groove 31 that mates with the positioning block 29. The positioning block groove 31 is provided with a positioning bead groove 32 that mates with the third positioning bead 30. The positioning block 29 is embedded in the positioning block groove 31, and the third positioning bead 30 is embedded in the positioning bead groove 32. This improves the fixing effect and prevents the buckle side component 1 and the locking side component 2 from misaligning during fixation. In this embodiment, the second positioning bead 24 and the third positioning bead 30 have the same structure as the first positioning bead 12.

[0054] In addition, the locking sleeve 6 and the top of the fixing base 3 are both provided with a through circular hole. The through circular hole can be fixed with a screw and nut, or with a buckle, and can also provide a connection point for fixing the LED display unit. When it is necessary to strengthen the stability, a rope can be used to connect the through circular hole to an object that cannot be moved, making the LED display more stable.

[0055] In summary, compared to the prior art, the locking assembly 7 of this embodiment can rotate between a locking position and a release position, controlling the angle adjustment of the lock sleeve 6 to achieve the effect of adjusting the connection angle between two adjacent LED display units. The U-shaped buckle 4 rotates to a suitable angle and locks with the locking side assembly 2, achieving a connection locking effect with a certain arc. At the same time, the cooperation of the lock sleeve 6, the lock seat 5, and the locking assembly 7 makes the overall structure stable. In particular, the split nesting arrangement of the lock sleeve 6 and the lock seat 5, and the multi-structure cooperation thereon, form a function that can slide along the arc and self-lock in the selected position at the same time. The locking state is stable, which improves the safety performance of the overall locking device. In addition, the buckle side assembly 1 and the locking side assembly 2 are each integrated into an integrated part, which can be easily installed on the LED display unit through their respective bases.

[0056] Example 2:

[0057] Reference Figure 9 On the basis of Example 1, the self-locking push button 10 can also be clamped on the inclined surface between the first positioning surface 15 and the second positioning surface 24, and the inclined surface is inclined toward the rear, as described in detail below.

[0058] When the locking assembly 7 is in the released position, the self-locking push button 10 is in a depressible state. At this time, the self-locking push button 10 is pressed down, and the self-locking push button drives the front end of the limit block 11 to rotate, and the rear end of the limit block 11 is tilted. The second arc-shaped tooth 9 is disengaged from the first arc-shaped tooth 8, and the self-locking push button 10 abuts against the intermediate inclined surface between the first positioning surface 15 and the second positioning surface 24. The self-locking push button 10 is pressed down to drive the front end of the limit block 11 to abut against the second positioning surface 24, and the self-locking push button 10 can be stuck on the inclined surface. At this time, the pressure on the self-locking push button 10 is released, and the self-locking push button 10 is still stuck on the inclined surface. There is no need to continue to press the self-locking push button 10 to achieve locking of the sliding state of the lock sleeve.

[0059] Push the self-locking push button 10 to move backward, the sliding shaft 22 abuts against the closed end of the slide groove 13, the self-locking push button 10 disengages from the blocking position with the inclined surface, and the reset force of the torsion spring 18 drives the front end of the limit block 11 to return to its original position and rotate upward. The rear end of the limit block 11 rotates downward, the second arc-shaped teeth 9 engage with the first arc-shaped teeth 8, and the lock sleeve 6 is fixed.

[0060] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0061] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0062] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0063] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0064] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A buckle-type locking device with adjustable curvature, characterized in that: The buckle-type locking device comprises a buckle-side component (1) and a locking-side component (2) capable of being connected to two adjacent LED display units respectively; The buckle side component (1) comprises a fixing seat (3) capable of being fixed on an LED display unit, and a U-shaped buckle (4) rotatably connected to the fixing seat (3); The locking side component (2) comprises a lock seat (5) capable of being fixed on another LED display unit, a lock sleeve (6) and a locking component (7); the top of the lock seat (5) has first arc-shaped teeth (8) arranged in an arc shape; the lock sleeve (6) can be selectively slidably mounted on the lock seat (5) along a certain arc; the locking component (7) can be rotatably connected to the lock sleeve (6) between a locking position and a release position; the locking component (7) has second arc-shaped teeth (9) arranged in an arc shape; When the locking assembly (7) is in the locking position, the second arc-shaped teeth (9) are engaged with the first arc-shaped teeth (8), and the locking sleeve (6) is locked with the locking seat (5); When the locking assembly (7) is in the release position, the second arc-shaped tooth (9) is disengaged from the first arc-shaped tooth (8), and the lock sleeve (6) can slide along a certain arc relative to the lock seat (5); The U-shaped buckle (4) can be rotated to be detachably connected to the locking sleeve (6).

2. The arc-adjustable buckle-type locking device according to claim 1, characterized in that: The locking assembly (7) comprises a self-locking push button (10) and a limit block (11); A plurality of first positioning beads (12) are embedded in the bottom of the self-locking push button (10), the limit block (11) is embedded in the top of the lock sleeve (6), the middle part of the limit block (11) is rotatably supported on the lock sleeve (6), the second arc-shaped tooth (9) is provided at one end of the limit block (11), the other end of the limit block (11) is provided with a slide groove (13), and two groups of front and rear limit grooves (14) are provided on the limit block (11) along the extension direction of the slide groove (13); The self-locking push button (10) is slidably connected to the slide groove (13) and can move along the slide groove (13) between a locking position and a releasing position; The top of the lock sleeve (6) is provided with a first positioning surface (15) and a receiving groove (16) for receiving the limit block (11), and the first positioning surface (15) and the receiving groove (16) are adjacently arranged in the front-to-back direction; When the self-locking push button (10) is in the locked position, the head of the first positioning bead (12) is embedded in the limiting groove (14) on the front side, and the bottom of the self-locking push button (10) is in contact with the first positioning surface (15), thereby limiting the rotation of the limiting block (11); The self-locking push button (10) is pushed to move toward the rear end of the slide groove (13) until the bottom of the self-locking push button (10) is disengaged from the first positioning surface (15), and the first positioning bead (12) is disengaged from the front limiting groove (14) and moved to be embedded in the rear limiting groove (14). The self-locking push button (10) is in a release position capable of being pressed downward. When subjected to downward pressure, the self-locking push button (10) drives the limiting block (11) to rotate, so that the second arc-shaped tooth (9) is disengaged from the first arc-shaped tooth (8).

3. The arc-adjustable buckle-type locking device according to claim 2, characterized in that: The locking assembly (7) further includes a connecting shaft (17) and a torsion spring (18); The connecting shaft (17) passes through the limit block (11) and the torsion spring (18) and is fixedly connected to the locking sleeve (6); one end of the free end of the torsion spring (18) abuts against the limit block (11), and the other end abuts against the first arc-shaped tooth (8); When the self-locking push button (10) is in the release position, the self-locking push button (10) is pressed downward, and the self-locking push button (10) pushes the limit block (11) to rotate, and the limit block (11) drives the torsion spring (18) to store energy, and the second arc-shaped tooth (9) and the first arc-shaped tooth (8) are disengaged; When the self-locking push button (10) is released from downward pressure, the reset force of the torsion spring (18) drives the limit block (11) to rotate in the opposite direction, and the second arc-shaped tooth (9) meshes with the first arc-shaped tooth (8).

4. The arc-adjustable buckle-type locking device according to claim 2, characterized in that: A second positioning bead (19) is embedded on the top of the lock sleeve (6), and a plurality of positioning points (20) arranged in an arc at the same interval angle are provided on the top of the lock seat (5). The positioning points (20) are constructed as a through-ball-shaped hole structure, and the bead head of the second positioning bead (19) can be selectively embedded in any of the positioning points (20); The locking sleeve (6) and the limiting block (11) are also provided with a buckling groove (21) for detachable connection of the U-shaped buckle (4).

5. The arc-adjustable buckle-type locking device according to claim 2, characterized in that: The bottom of the self-locking push button (10) is connected to a sliding shaft (22) and a stopper (23), the sliding shaft (22) is slidably arranged in the sliding groove (13), the stopper (23) is connected to one end of the sliding shaft (22) and is located in the accommodating groove (16), and the sliding groove (13) is a U-shaped groove; When the self-locking push button (10) is completely separated from the first positioning surface (15), the first positioning bead (12) is embedded in the limiting groove (14) on the rear side; When the stopping portion (23) stops at the side wall of the accommodating groove (16), the first positioning bead (12) is embedded in the limiting groove (14) on the front side.

6. The arc-adjustable buckle-type locking device according to claim 2, characterized in that: A second positioning surface (24) is provided in the receiving groove (16). When subjected to downward pressure, the self-locking push button (10) drives the limit block (11) to rotate until it abuts against the second positioning surface (24), and the second arc-shaped tooth (9) is disengaged from the first arc-shaped tooth (8).

7. The buckle-type locking device with adjustable curvature according to claim 1, characterized in that: The lock seat (5) is provided with a first arc-shaped track (25) and a first connecting pin (26) fixedly connected to the lock sleeve (6), and the first connecting pin (26) slides in the first arc-shaped track (25); The lock sleeve (6) is provided with a second arc-shaped track (27) and a second connecting pin (28) fixedly connected to the lock seat (5), and the second connecting pin (28) slides in the second arc-shaped track (27); The cooperation between the first arc track (25) and the first connecting pin (26), as well as the cooperation between the second arc track (27) and the second connecting pin (28), jointly limit the sliding of the lock sleeve (6) relative to the lock seat (5) along a certain arc.

8. The arc-adjustable buckle-type locking device according to claim 7, characterized in that: The position of the second connecting pin (28) corresponding to the locking sleeve (6) is provided with an angle value of a corresponding angle, and the adjustment angle value of the locking sleeve (6) is the angle value displayed on the scale corresponding to the second connecting pin (28).

9. The arc-adjustable buckle-type locking device according to claim 1, characterized in that: A plurality of positioning blocks (29) are further provided on both sides of the front end of the lock sleeve (6), and the positioning blocks (29) are embedded with third positioning beads (30); The fixing seat (3) is provided with a positioning block groove (31) that fits with the positioning block (29), and a positioning bead groove (32) that fits with the third positioning bead (30) is provided in the positioning block groove (31) to limit relative displacement of the buckle side component (1) and the locking side component (2).

10. The arc-adjustable buckle-type locking device according to claim 1, characterized in that: The locking sleeve (6) and the top of the fixing seat (3) are both provided with penetrating circular holes.

Images