An arc-shaped lock and an LED display screen

Abstract

An arc-shaped lock, mounted on an LED display cabinet, includes a left locking component and a right locking seat. The left locking component and right locking seat are respectively distributed on the left and right sides of the LED display cabinet and are interlocked. The right locking seat includes a lock cylinder assembly and a screw base. The lock cylinder assembly includes a lock knob, a lock pull rod, an elastic element, and a flange lock cylinder. The screw base and the flange lock cylinder are respectively engaged on the front and back sides of the LED display cabinet. The lock knob is fixed to the lock pull rod. The lock pull rod has a shoulder in the middle. The flange lock cylinder is sleeved on the lock pull rod and located between the lower part of the lock knob and the upper part of the shoulder. The elastic element is sleeved on the lock pull rod and acts on the flange lock cylinder at one end and on the shoulder at the other end, so that the flange lock cylinder moves when the lock knob is tightened or loosened. The flange lock cylinder and the lock pull rod are fitted with a clearance, so that the flange lock cylinder can rotate around the lock pull rod to switch different angle sides to engage with the corresponding left locking component. The lock pull rod is threadedly connected to the screw base to lock the lock cylinder assembly.

Description

Technical Field

[0001] This utility model relates to the field of display screen technology, specifically to an arc-shaped lock and an LED display screen. Background Technology

[0002] With the development of the times, LED displays are widely used in government squares, National Day celebrations, leisure squares, large entertainment squares, bustling commercial centers, advertising information boards, commercial streets, railway stations, waiting rooms, performing arts centers, live television broadcasts, exhibition halls, concert venues and other places.

[0003] To showcase the visual effect of curved surfaces, LED displays often use curved locks to connect two adjacent cabinets. However, the curved locks commonly available on the market have complex structures and require many steps to operate. Therefore, there is an urgent need for a curved lock and LED display to solve the above problems. Utility Model Content

[0004] In view of this, an arc-shaped lock and LED display screen that are easy to operate and have a simple structure are provided.

[0005] An arc-shaped lock, mounted on an LED display cabinet, is used to connect two adjacent LED display cabinets at a predetermined angle. It includes a left locking component and a right locking seat, respectively distributed on the left and right sides of the LED display cabinet and configured to lock into each other. The right locking seat includes a lock cylinder assembly and a screw base. The lock cylinder assembly includes a lock knob, a lock lever, an elastic element, and a flange lock cylinder. The screw base and the flange lock cylinder are respectively engaged on the front and back sides of the LED display cabinet. The lock knob... The locking rod is fixed to the locking lever, which has a shoulder in the middle. The flange lock core is sleeved on the locking lever and located between the lower part of the locking knob and the upper part of the shoulder. The elastic element is sleeved on the locking lever and acts on the flange lock core at one end and on the shoulder at the other end, so that the flange lock core moves when the locking knob is tightened or loosened. The flange lock core and the locking lever are in clearance fit, so that the flange lock core can rotate around the locking lever to switch different angle sides to dock and lock with the corresponding left locking piece. The locking lever is threadedly connected to the screw base to lock the lock core assembly.

[0006] Furthermore, the locking knob and the locking rod are fixed by a pin. The locking rod also includes a front part. The flange lock core includes a through hole and an inner surface of the flange. The front part of the rod passes through the through hole and is clearance-fitted with the through hole. The inner surface of the flange is the end face of the through hole facing the screw base. The outer diameter of the elastic element is larger than the diameter of the through hole and smaller than the diameter of the shoulder. The elastic element is sleeved on the locking rod, with one end acting on the inner surface of the flange and the other end acting on the shoulder.

[0007] Furthermore, the locking knob is provided with a pin hole, and the end of the front part of the rod is provided with a connecting hole corresponding to the pin hole. The pin passes through the pin hole and the connecting hole. The locking lever also includes a rear part of the lever, which is an externally threaded lever. The middle part of the screw base is provided with an internally threaded hole, and the externally threaded lever is threadedly connected to the internally threaded hole.

[0008] Furthermore, the right lock seat also includes a sealing plate, which is fixed to the flange lock core. The sealing plate has a through hole in the middle, which is clearance-fitted with the shaft shoulder. The flange lock core, the sealing plate, and the lock rod together form a cavity, and the elastic element is installed in the cavity.

[0009] Furthermore, the outer edge of the lock knob is provided with multiple protrusions for easy gripping, and the inner side of the lock knob is provided with multiple hollowed-out weight-reducing parts.

[0010] Furthermore, the right lock seat also includes an iron plate, which is fixed to the bottom of the flange lock cylinder. The bottom of the flange lock cylinder is also provided with a positioning post. The LED display screen frame includes a lock cylinder mounting groove, in which the flange lock cylinder is installed. The lock cylinder mounting groove is a polygonal locking groove corresponding to the shape of the flange lock cylinder to prevent the flange lock cylinder from rotating within the groove. The bottom of the lock cylinder mounting groove is provided with a magnet corresponding to the iron plate and a positioning hole corresponding to the positioning post. The screw base is installed in the middle of the bottom of the lock cylinder mounting groove.

[0011] Furthermore, the surface of the flange lock core away from the screw base is the flange main surface, and the flange lock core has multiple flange side surfaces circumferentially arranged on its side. Each flange side surface forms an angle with the flange main surface at a different angle, and a lock seat hole is opened in the middle of each flange side surface.

[0012] Furthermore, the left locking member includes a locking shaft, the front end of which is provided with a locking head, which can be aligned and locked with the locking seat hole.

[0013] Furthermore, the flange main face is marked with multiple different angle values, each angle value corresponding to the angle between each flange side and the flange main face.

[0014] An LED display screen includes an LED display screen frame and an LED electronic display module disposed on the front of the LED display screen frame, and also includes the aforementioned arc-shaped lock, which is distributed on both symmetrical edges of the LED display screen frame.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] This arc-shaped lock and LED display simplify operation by using a threaded connection between the lock lever and the screw base. Specifically, the right lock seat only requires rotating the lock knob to secure the flange lock cylinder to the LED display frame via the threaded connection; rotating the lock knob in the opposite direction releases the flange lock cylinder. The structure is simple and the operation is convenient. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an arc-shaped lock and an LED display screen according to an embodiment of the present utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the right lock seat of an arc-shaped lock and an LED display screen according to an embodiment of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the right lock seat of an arc-shaped lock and LED display screen in another direction according to an embodiment of the present utility model.

[0020] Figure 4 This is an exploded view of the right lock seat of an arc-shaped lock and an LED display screen according to an embodiment of the present invention.

[0021] Figure 5 This is a cross-sectional schematic diagram of the right lock seat of an arc-shaped lock and an LED display screen according to an embodiment of this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the left locking component of an arc-shaped lock and an LED display screen according to an embodiment of this utility model.

[0023] In the picture,

[0024] 1. LED display screen frame; 2. Left lock; 3. Right lock seat; 4. Lock knob; 5. Lock pull rod; 6. Elastic element; 7. Pin; 8. Flange lock cylinder; 9. Screw base; 10. Front part of the rod; 11. Shoulder; 12. Through hole; 13. Flange inner surface; 14. Pin hole; 15. Connecting hole; 16. Rear part of the rod; 17. Internal threaded hole; 18. Sealing plate; 19. Through hole; 20. Chamber; 21. Protrusion; 22. Hollowed-out weight reduction part; 23. Iron sheet; 24. Positioning post; 25. Lock cylinder mounting groove; 26. Flange main face; 27. Flange side; 28. Lock seat hole; 29. ​​Lock shaft; 30. Lock head; 31. LED electronic display module. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 6 This illustration shows an arc-shaped lock provided by an embodiment of the present invention, mounted on an LED display screen frame 1, used to connect two adjacent LED display screen frames 1 at a predetermined angle. It includes a left locking member 2 and a right locking seat 3, respectively distributed on the left and right sides of the LED display screen frame 1, and configured to lock together. The right locking seat 3 includes a lock cylinder assembly and a screw base 9. The lock cylinder assembly includes a lock knob 4, a lock pull rod 5, an elastic element 6, and a flange lock cylinder 8. The screw base 9 and the flange lock cylinder 8 are respectively engaged on the front and back sides of the LED display screen frame 1. The locking knob 4 is fixed to the locking rod 5. The locking rod 5 has a shoulder 11 in the middle. The flange lock core 8 is sleeved on the locking rod 5 and located between the lower part of the locking knob 4 and the upper part of the shoulder 11. The elastic element 6 is sleeved on the locking rod 5 and acts on the flange lock core 8 at one end and on the shoulder 11 at the other end, so that the flange lock core 8 moves when the locking knob 4 is tightened or loosened. The flange lock core 8 and the locking rod 5 are in clearance fit, so that the flange lock core 8 can rotate around the locking rod 5 to switch different angle sides to dock and lock with the corresponding left lock piece 2. The locking rod 5 is threadedly connected to the screw base 9 to lock the lock core assembly.

[0027] In some specific embodiments, it is a preferred embodiment that the left locking member 2 and the right locking seat 3 are respectively distributed on the left and right sides of the LED display box frame 1. Alternatively, the left locking member 2 can be set on the right side of the LED display box frame 1 and the right locking seat 3 can be set on the left side. It is sufficient to set them on the symmetrical sides of the LED display box frame 1 and distribute them accordingly. In other embodiments, the left locking member 2 and the right locking seat 3 can be interchanged and distributed on the upper and lower sides of the LED display box frame 1.

[0028] Specifically, the locking knob 4 and the locking rod 5 are fixed by a pin 7. The locking rod 5 also includes a rod front part 10. The flange lock core 8 includes a through hole 12 and a flange inner surface 13. The rod front part 10 passes through the through hole 12 and is clearance-fitted with the through hole 12. The flange inner surface 13 is the end face of the through hole 12 facing the screw base 9. The outer diameter of the elastic element 6 is larger than the diameter of the through hole 12. The outer diameter of the elastic element 6 is smaller than the diameter of the shoulder 11. The elastic element 6 is sleeved on the locking rod 5 and one end acts on the flange inner surface 13, and the other end acts on the shoulder 11. The elastic element 6 is preferably a spring. More specifically, the main function of the elastic element 6 is to automatically lift the flange lock core 8 when the locking knob 4 is loosened, so that the flange lock core 8 protrudes from the lock core mounting groove 25 to facilitate the removal of the lock core assembly.

[0029] More specifically, the locking knob 4 is provided with a pin hole 14, and the end of the front part 10 of the rod is provided with a connecting hole 15 corresponding to the pin hole 14. The pin 7 passes through the pin hole 14 and the connecting hole 15. The locking lever 5 also includes a rear part 16, which is an externally threaded lever. The screw base 9 is provided with an internally threaded hole 17 in the middle, and the externally threaded lever is threadedly connected to the internally threaded hole 17.

[0030] In some specific embodiments, the lock cylinder assembly is formed by the cooperation between the lock knob 4, the lock pull rod 5, the elastic element 6, and the flange lock cylinder 8, creating a movable whole. Specifically, when the lock knob 4 is lifted, the shoulder 11 acts on the elastic element 6, and the elastic element 6 acts on the flange lock cylinder 8, thus lifting the lock knob 4 can drive the flange lock cylinder 8 to move upward synchronously. When it is necessary to lock the angle surface of the flange lock cylinder 8, the flange lock cylinder 8 is first rotated around the lock pull rod 5 until the target angle surface is opposite to the left lock piece 2. Then, the flange lock cylinder 8 is vertically placed into the lock cylinder mounting slot 25. The flange lock cylinder 8 is positioned by the positioning pin 24 cooperating with the positioning hole. At the same time, the rear part 16 of the lock pull rod 5 is aligned with the internal thread hole 17 of the screw base 9. Then, the lock knob 4 is rotated, and the lock knob 4 drives the lock pull rod 5 to rotate through the pin 7. The external thread is screwed into the internal threaded hole 17, causing the locking rod 5 to move axially toward the frame, thereby causing the locking knob 4 to move toward the flange lock core 8 to press the flange lock core 8 against the LED display frame 1. When it is necessary to switch the angle face of the flange lock core 8, the locking knob 4 is rotated in the opposite direction to loosen it. At the same time, the external thread of the rod rear 16 is screwed out from the internal threaded hole 17, the elastic element 6 is reset and automatically lifts the flange lock core 8, and the lock core assembly protrudes from the lock core mounting groove 25. At this time, the locking knob 4 is lifted, and the locking knob 4 causes the locking rod 5 to move upward. Since the flange inner surface 13 and the shoulder 11 are connected by the elastic element 6, the upward movement of the shoulder 11 pushes the elastic element 6 upward, thereby causing the flange lock core 8 to move upward. After the flange lock core 8 is disengaged from the lock core mounting groove 25, it can rotate freely around the locking rod 5 to switch the angle face.

[0031] More specifically, the right lock seat 3 also includes a sealing plate 18, which is fixed to the flange lock core 8. The sealing plate 18 has a through hole 19 in the middle, which is clearance-fitted with the shoulder 11. The flange lock core 8, the sealing plate 18 and the lock rod 5 together form a cavity 20, and the elastic element 6 is installed in the cavity 20.

[0032] Specifically, the outer edge of the lock knob 4 is provided with multiple protrusions 21 for easy gripping, and the inner side of the lock knob 4 is provided with multiple hollowed-out weight-reducing parts 22.

[0033] Specifically, the right lock seat 3 further includes an iron plate 23, which is fixed to the bottom of the flange lock cylinder 8. The bottom of the flange lock cylinder 8 is also provided with a positioning post 24. The LED display screen frame includes a lock cylinder mounting groove 25, in which the flange lock cylinder 8 is installed. The lock cylinder mounting groove 25 is a polygonal slot corresponding to the shape of the flange lock cylinder 8 to prevent the flange lock cylinder 8 from rotating within the groove of the lock cylinder mounting groove 25, thereby ensuring the alignment accuracy of the left lock piece 2 and the right lock seat 3. The bottom of the lock cylinder mounting groove 25 is provided with a magnet corresponding to the iron plate 23 and a positioning hole corresponding to the positioning post 24. The screw base 9 is installed in the middle of the bottom of the lock cylinder mounting groove 25.

[0034] In some specific embodiments, a magnetic groove is installed at the bottom of the lock cylinder mounting groove 25, and a magnet is fixed in the magnetic groove. The iron piece 23 and the magnet are attracted together under the action of magnetic force, which can play a pre-fixing role and prevent the flange lock cylinder 8 from falling off when it is not locked. Understandably, in practical applications, the positions of the magnetic groove and the iron piece 23 can be interchanged. That is, the iron piece 23 can be installed at the bottom of the lock cylinder mounting groove 25, and the magnetic groove can be installed at the bottom of the flange lock cylinder 8. Similarly, the positions of the positioning pin 24 and the positioning hole can also be interchanged.

[0035] Specifically, the surface of the flange lock core 8 away from the screw base 9 is the flange main surface 26. The flange lock core 8 has multiple flange side surfaces 27 circumferentially arranged on its side. Each flange side surface 27 forms an angle with the flange main surface 26 at a different angle. A lock seat hole 28 is opened in the middle of each flange side surface 27.

[0036] More specifically, the left locking member 2 includes a locking shaft 29, the front end of which is provided with a locking head 30, which can be aligned and locked with the locking seat hole 28.

[0037] More specifically, the flange main face 26 is marked with multiple different angle values, each angle value corresponding to the included angle between each flange side face 27 and the flange main face 26. More specifically, the flange main face 26 is basically parallel to the back of the LED display screen frame 1.

[0038] An LED display screen includes an LED display screen frame 1 and an LED electronic display module 31 disposed on the front of the LED display screen frame 1, and also includes the aforementioned arc-shaped lock, which is distributed on both symmetrical edges of the LED display screen frame 1.

[0039] In summary, this arc-shaped lock and LED display screen simplify operation by connecting the locking lever 5 to the screw base 9 via a threaded connection. Specifically, the right lock seat 3 can tighten the flange lock core 8 to the LED display screen frame 1 by simply rotating the lock knob 4 via the threaded connection, and the flange lock core 8 can be released by rotating the lock knob 4 in the opposite direction. The structure is simple and the operation is convenient.

[0040] It should be noted that this utility model is not limited to the above-described embodiments. Based on the inventive spirit of this utility model, those skilled in the art can make other changes, and these changes made based on the inventive spirit of this utility model should be included within the scope of protection claimed by this utility model.

Claims

1. An arc-shaped lock, disposed on an LED display screen frame, for connecting two adjacent LED display screen frames at a predetermined angle, comprising a left locking member and a right locking seat, wherein the left locking member and the right locking seat are respectively distributed on the left and right sides of the LED display screen frame, and the left locking member and the right locking seat are configured to lock into each other, characterized in that, The right lock seat includes a lock cylinder assembly and a screw base. The lock cylinder assembly includes a lock knob, a lock pull rod, an elastic element, and a flange lock cylinder. The screw base and the flange lock cylinder are respectively engaged on the front and back sides of the LED display screen frame. The lock knob is fixed to the lock pull rod. The lock pull rod has a shoulder in the middle. The flange lock cylinder is sleeved on the lock pull rod and located between the lower part of the lock knob and the upper part of the shoulder. The elastic element is sleeved on the lock pull rod and acts on the flange lock cylinder at one end and on the shoulder at the other end, so that the flange lock cylinder moves when the lock knob is tightened or loosened. The flange lock cylinder and the lock pull rod are clearance-fitted, so that the flange lock cylinder can rotate around the lock pull rod to switch different angle sides to dock and lock with the corresponding left lock piece. The lock pull rod is threadedly connected to the screw base to lock the lock cylinder assembly.

2. The arc-shaped lock as described in claim 1, characterized in that, The locking knob and the locking rod are fixed by a pin. The locking rod also includes a front part. The flange lock core includes a through hole and an inner surface of the flange. The front part of the rod passes through the through hole and is clearance-fitted with the through hole. The inner surface of the flange is the end face of the through hole facing the screw base. The outer diameter of the elastic element is larger than the diameter of the through hole and smaller than the diameter of the shoulder. The elastic element is sleeved on the locking rod and one end acts on the inner surface of the flange, and the other end acts on the shoulder.

3. An arc-shaped lock as described in claim 2, characterized in that, The locking knob is provided with a pin hole, and the end of the front part of the rod is provided with a connecting hole corresponding to the pin hole. The pin passes through the pin hole and the connecting hole. The locking rod also includes a rear part of the rod, which is an externally threaded rod. The middle part of the screw base is provided with an internally threaded hole, and the externally threaded rod is threadedly connected to the internally threaded hole.

4. An arc-shaped lock as described in claim 2, characterized in that, The right lock seat also includes a sealing plate, which is fixed to the flange lock core. The sealing plate has a through hole in the middle, which is clearance-fitted with the shaft shoulder. The flange lock core, the sealing plate, and the lock rod together form a cavity, and the elastic element is installed in the cavity.

5. An arc-shaped lock as described in claim 1, characterized in that, The outer edge of the lock knob has multiple protrusions for easy gripping, and the inner side of the lock knob has multiple hollowed-out weight-reducing parts.

6. An arc-shaped lock as described in claim 1, characterized in that, The right lock seat also includes an iron plate, which is fixed to the bottom of the flange lock cylinder. The bottom of the flange lock cylinder is also provided with a positioning post. The LED display screen frame includes a lock cylinder mounting groove, in which the flange lock cylinder is installed. The lock cylinder mounting groove is a polygonal locking groove corresponding to the shape of the flange lock cylinder to prevent the flange lock cylinder from rotating within the groove. The bottom of the lock cylinder mounting groove is provided with a magnet corresponding to the iron plate and a positioning hole corresponding to the positioning post. The screw base is installed in the middle of the bottom of the lock cylinder mounting groove.

7. An arc-shaped lock as described in claim 1, characterized in that, The surface of the flange lock core away from the screw base is the flange main surface. The flange lock core has multiple flange side surfaces circumferentially arranged on its side. Each flange side surface forms an angle with the flange main surface at a different angle. A lock seat hole is opened in the middle of each flange side surface.

8. An arc-shaped lock as described in claim 7, characterized in that, The left locking component includes a locking shaft, and a locking head is provided at the front end of the locking shaft. The locking head can be aligned and locked with the locking seat hole.

9. An arc-shaped lock as described in claim 7, characterized in that, The flange main face is marked with multiple different angle values, each angle value corresponding to the angle between each flange side and the flange main face.

10. An LED display screen, comprising an LED display screen frame and an LED electronic display module disposed on the front side of the LED display screen frame, characterized in that, It also includes the arc-shaped lock as described in any one of claims 1 to 9, wherein the arc-shaped lock is distributed on both symmetrical edges of the LED display screen frame.

Images