Display screen up and down lock

Abstract

A display screen up and down lock is arranged on LED display screen box frame, which is used for connecting two adjacent LED display screen box frames, comprising an upper lock and a lower lock seat, the upper lock and the lower lock seat are respectively distributed on the upper side and the lower side of the LED display screen box frame, and the upper lock and the lower lock seat are configured to be able to be locked with each other, the lower lock seat comprises a lock catch, a fixing seat, a pressing block, a first elastic member and a second elastic member, the lock catch is connected with the fixing seat through the first elastic member, the pressing block is connected with the fixing seat through the second elastic member, the upper lock comprises a lock rod, when the upper lock and the corresponding lower lock seat are locked, the lock catch is radially clamped with the lock rod under the action of the first elastic member, and the pressing block synchronously axially presses the lock rod to the lock catch under the action of the second elastic member, and the display screen up and down lock has the characteristics of safety and reliability and is not easy to loosen.

Description

Technical Field

[0001] This utility model relates to the field of display screen technology, specifically to a display screen locking mechanism. Background Technology

[0002] In mainstream display screen cabinets, the handle and quick-lock are two separate functional components located in different areas. When holding the cabinet handle, the quick-lock cannot be operated. During hoisting and disassembly, at least one person is required to hold the cabinet handle while another operates the quick-lock, which is extremely inconvenient. Patent publication CN221779786U discloses a handle lock that integrates the functions of both the cabinet handle and the quick-lock. However, the lock head of this handle lock is exposed on the lock plate fixing seat, posing a risk of impact. Furthermore, when locked but not fully tightened, although the lock rod and the lock hole of the lock plate are elastically engaged radially, the width of the slot is greater than the thickness of the lock plate, resulting in a gap between the lock head and the lock plate axially. The lack of a positioning structure makes the lock head and lock plate fit together poorly, lacking stability and reliability, and prone to loosening. Therefore, a new type of display screen top and bottom lock is urgently needed to solve these problems. Utility Model Content

[0003] In view of this, a safe, reliable, and non-loose display screen locking mechanism is provided.

[0004] A display screen upper and lower lock, mounted on an LED display screen frame, is used to connect two adjacent LED display screen frames. It includes an upper locking component and a lower locking base. The upper locking component and the lower locking base are respectively distributed on the upper and lower sides of the LED display screen frame, and are configured to lock into each other. The lower locking base includes a latch, a fixing base, a pressure block, a first elastic element, and a second elastic element. The latch is connected to the fixing base via the first elastic element, and the pressure block is connected to the fixing base via the second elastic element. The upper locking component includes a locking rod. When the upper locking component is aligned and locked with the corresponding lower locking base, the latch radially engages with the locking rod under the action of the first elastic element, and the pressure block axially presses the locking rod against the latch under the action of the second elastic element.

[0005] Furthermore, the fixing seat has a protrusion on the side away from the locking rod, the pressure block is installed in the protrusion, and the two ends of the pressure block have a first recess facing away from the locking rod and a second recess facing the locking rod, respectively. One end of the second elastic member acts on the convex bottom wall of the protrusion, and the other end acts on the concave bottom wall of the first recess. The locking rod includes a lock head. When the upper locking member is aligned and locked with the corresponding lower locking seat, the lock head is inserted into the second recess and presses against the concave bottom wall of the second recess.

[0006] Furthermore, the latch has a lock hole in the middle, and the locking rod is provided with a locking shaft, a stepped shaft section and the lock head in sequence along the direction towards the lock hole. In the natural state, the outer wall of the pressure block abuts against the wall of the lock hole to make the pressure block radially engage with the latch. When the upper locking member is aligned and locked with the corresponding lower locking seat, the lock hole hooks the stepped shaft section to make the latch radially engage with the locking rod.

[0007] Furthermore, the lock head is frustum-shaped, and the diameter of the stepped shaft section is smaller than the maximum diameter of the lock head and the diameter of the lock shaft to form a groove. The width of the groove is greater than the thickness of the latch to smoothly hook the lock hole onto the stepped shaft section.

[0008] Furthermore, the fixing base is also provided with an elastic element mounting groove, one end of the first elastic element acts on the latch, and the other end acts on the elastic element mounting groove.

[0009] Furthermore, the locking component also includes a handle, a lock sleeve, and a third elastic element. The handle is threadedly connected to the lock sleeve, the locking rod is fixed to the handle, and the third elastic element is sleeved on the locking rod.

[0010] Furthermore, the lock sleeve has a knob portion and the latch has a pressing portion, both of which are provided with multiple rows of striped patterns to increase friction.

[0011] Furthermore, the lower lock seat also includes a locking plate, which is detachably connected to the fixed seat by fasteners, and the lock is installed between the locking plate and the fixed seat.

[0012] Furthermore, the locking component also includes a limiting screw, and the locking rod is also provided with a limiting groove. The length direction of the limiting groove is in the same direction as the axial direction of the locking rod. The LED display screen frame is provided with a limiting screw hole and a locking rod through hole. The limiting screw hole is used to install the limiting screw, and the bottom of the limiting screw is inserted into the limiting groove. The locking rod through hole is used to assemble the locking rod.

[0013] Furthermore, the length direction of the first elastic element is perpendicular to the axial direction of the locking rod, and the length direction of the second elastic element is consistent with the axial direction of the locking rod.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] When this type of display screen lock is engaged, the lock head embeds into the second recess of the pressure block, which is installed within the protrusion of the fixing base. This prevents the lock head from protruding from the fixing base, avoiding the risk of accidental impact. Furthermore, under the action of the first elastic element, the stepped shaft section radially engages with the lock hole of the latch. Under the action of the second elastic element, the pressure block axially pushes the lock head, ensuring a tight fit between the lock head and the latch. This achieves dual locking of the locking rod in both the radial and axial directions, making the locking rod less prone to loosening and more stable and reliable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a display screen upper and lower lock assembly on an LED display screen frame according to an embodiment of this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of a display screen locking mechanism according to an embodiment of the present invention.

[0018] Figure 3 This is an exploded view of a display screen locking mechanism according to an embodiment of this utility model.

[0019] Figure 4 This is an exploded view of another direction of a display screen locking mechanism according to an embodiment of this utility model.

[0020] Figure 5 This is a cross-sectional schematic diagram of the unlocked state of a display screen in an embodiment of the present invention.

[0021] Figure 6 This is a cross-sectional schematic diagram of the locked state of the upper and lower locks of a display screen according to an embodiment of the present utility model.

[0022] In the picture,

[0023] 1. LED display screen frame; 2. Lower lock base; 3. Upper lock component; 4. Locking buckle; 5. Fixing base; 6. Pressure block; 7. First elastic element; 8. Second elastic element; 9. Locking rod; 10. Protrusion; 11. First recess; 12. Second recess; 13. Lock head; 14. Lock hole; 15. Lock shaft; 16. Stepped shaft section; 17. Slot; 18. Elastic element mounting slot; 19. Handle; 20. Lock sleeve; 21. Third elastic element; 22. Knob part; 23. Pressing part; 24. Locking buckle pressure plate; 25. Limiting screw; 26. Limiting groove. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 6 This illustration shows an embodiment of a display screen upper and lower lock provided by the present invention, which is disposed on an LED display screen frame 1 and is used to connect two adjacent LED display screen frames 1. It includes an upper locking member 3 and a lower locking seat 2. The upper locking member 3 and the lower locking seat 2 are respectively distributed on the upper and lower sides of the LED display screen frame 1, and the upper locking member 3 and the lower locking seat 2 are constructed to be mutually lockable. The lower locking seat 2 includes a latch 4, a fixing seat 5, a pressure block 6, a first elastic member 7, and a second elastic member 8. The latch 4 is connected to the fixing seat 5 through the first elastic member 7, and the pressure block 6 is connected to the fixing seat 5 through the second elastic member 8. The upper locking member 3 includes a locking rod 9. When the upper locking member 3 is aligned and locked with the corresponding lower locking seat 2, the latch 4 is radially engaged with the locking rod 9 under the action of the first elastic member 7, and the pressure block 6 synchronously presses the locking rod 9 axially against the latch 4 under the action of the second elastic member 8.

[0026] Specifically, the fixing seat 5 has a protrusion 10 on the side away from the locking rod 9, and the pressure block 6 is installed in the protrusion 10. The two ends of the pressure block 6 are respectively provided with a first recess 11 facing away from the locking rod 9 and a second recess 12 facing the locking rod 9. One end of the second elastic member 8 acts on the convex bottom wall of the protrusion 10, and the other end acts on the concave bottom wall of the first recess 11. The locking rod 9 includes a lock head 13. When the upper locking member 3 is aligned and locked with the corresponding lower locking seat 2, the lock head 13 is inserted into the second recess 12 and presses against the concave bottom wall of the second recess 12.

[0027] More specifically, the latch 4 has a lock hole 14 in the middle, and the locking rod 9 is provided with a locking shaft 15, a stepped shaft section 16 and a lock head 13 in sequence along the direction towards the lock hole 14. The stepped shaft section 16 is located between the locking shaft 15 and the lock head 13. In the natural state, the outer wall of the pressure block 6 abuts against the hole wall of the lock hole 14 so that the pressure block 6 and the latch 4 are radially engaged. When the upper locking member 3 is aligned and locked with the corresponding lower locking seat 2, the lock hole 14 hooks the stepped shaft section 16 so that the latch 4 and the locking rod 9 are radially engaged.

[0028] In some specific embodiments, when locking, first grasp the handle 19 and push it upwards. The handle 19 moves the locking rod 9 upwards until the locking head 13 of the locking rod 9 contacts the second recess 12 of the pressure block 6. Continue pushing upwards, and the locking head 13 pushes the pressure block 6 upwards, causing the pressure block 6 to move upwards. The locking block 6 is released from the locking buckle 4, and the second elastic member 8 connected to the pressure block 6 contracts under the pushing force. It is pushed upwards until the locking buckle 4, under the elastic force of the first elastic member 7, engages with the stepped shaft section 16 of the locking rod 9. After locking, release the pressure, and the second elastic element 8 rebounds. The pressure block 6 pushes the lock head 13 so that the lock head 13 and the latch 4 are elastically pressed together. Finally, rotate the knob 22 of the lock sleeve 20 to lock it. To unlock, simply rotate the knob 22 in the opposite direction and press the pressing part 23 of the latch 4. The latch 4 drives the lock hole 14 to radially exit the slot 17. At this time, the second elastic element 8 resets and drives the pressure block 6 to reset, thereby pushing the lock head 13 of the lock rod 9 out of the latch 4 to complete the unlocking.

[0029] More specifically, the lock head 13 is frustum-shaped, and the diameter of the stepped shaft section 16 is smaller than the maximum diameter of the lock head 13 and the diameter of the lock shaft 15 to form a groove 17. The width of the groove 17 is greater than the thickness of the latch 4 to smoothly hook the lock hole 14 onto the stepped shaft section 16. The groove 17 is an annular groove, and the stepped shaft section 16 is the bottom of the annular groove. Under the action of the first elastic member 7, the lock hole 14 of the latch 4 enters the groove 17 and hooks onto the stepped shaft section 16.

[0030] In some specific embodiments, the lock head 13 is preferably frustum-shaped, and the arc surface of the frustum-shaped lock head 13 is used to smoothly guide the lock head 13 into the second recess 12. Alternatively, a wedge-shaped lock head 13 with a beveled shape at one end can also be selected.

[0031] Specifically, the fixed base 5 is also provided with an elastic element mounting groove 18, one end of the first elastic element 7 acts on the latch 4, and the other end acts on the elastic element mounting groove 18.

[0032] In some specific embodiments, the first elastic element 7, the second elastic element 8, and the third elastic element 21 are all preferably springs. The first elastic element 7 preferably uses two springs, and the fixing seat 5 preferably uses two elastic element mounting slots 18. The two springs are respectively installed in the two elastic element mounting slots 18 and act synchronously on both sides of the latch 4 so that the latch 4 can move smoothly along the spring extension direction and avoid the latch 4 from deflecting.

[0033] Specifically, the locking component 3 further includes a handle 19, a lock sleeve 20, and a third elastic element 21. The handle 19 is threadedly connected to the lock sleeve 20, the locking rod 9 is fixed to the handle 19, and the third elastic element 21 is sleeved on the locking rod 9. The third elastic element 21 is used to drive the locking rod 9 out of the latch 4 after unlocking.

[0034] More specifically, the lock sleeve 20 has a knob portion 22, and the latch 4 has a pressing portion 23. Both the knob portion 22 and the pressing portion 23 are provided with multiple rows of striped patterns to increase friction.

[0035] In some specific embodiments, setting multiple rows of striped patterns to increase friction is one implementation method. Alternatively, the friction between the knob part 22 and the pressing part 23 can be increased by attaching an anti-slip surface or wrapping an anti-slip sleeve to prevent the hand from slipping.

[0036] Specifically, the lower lock seat 2 further includes a locking plate 24, which is detachably connected to the fixed seat 5 by fasteners, and the lock 4 is installed between the locking plate 24 and the fixed seat 5.

[0037] Specifically, the locking component 3 further includes a limiting screw 25, and the locking rod 9 is also provided with a limiting groove 26. The length direction of the limiting groove 26 is in the same direction as the axial direction of the locking rod 9. The LED display screen frame 1 is provided with a limiting screw hole and a locking rod through hole. The limiting screw hole is used to install the limiting screw 25, and the bottom of the limiting screw is inserted into the limiting groove 26. The locking rod through hole is used to assemble the locking rod 9. The limiting screw 25 serves to prevent the locking rod 9 from coming off the LED display screen frame 1.

[0038] Specifically, the length direction of the first elastic element 7 is perpendicular to the axial direction of the locking rod 9, and the length direction of the second elastic element 8 is consistent with the axial direction of the locking rod 9.

[0039] In summary, when the display screen is locked, the lock head 13 is embedded in the second recess 12 of the pressure block 6, and the pressure block 6 is installed in the protrusion 10 of the fixing seat 5, so that the lock head 13 is not exposed outside the fixing seat 5, avoiding the risk of accidental bumping of the lock head 13. Moreover, under the action of the first elastic member 7, the stepped shaft section 16 is radially engaged with the lock hole of the latch 4. Under the action of the second elastic member 8, the pressure block 6 pushes the lock head 13 axially, so that the lock head 13 and the latch 4 are tightly fitted, thereby achieving double locking of the locking rod 9 in both radial and axial directions, making the locking rod 9 less prone to loosening and more stable and reliable.

[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. A display screen upper and lower lock, disposed on an LED display screen frame, for connecting two adjacent LED display screen frames, comprising an upper locking member and a lower locking base, wherein the upper locking member and the lower locking base are respectively distributed on the upper and lower sides of the LED display screen frame, and the upper locking member and the lower locking base are configured to lock into each other, characterized in that, The lower locking seat includes a latch, a fixed seat, a pressure block, a first elastic element, and a second elastic element. The latch is connected to the fixed seat through the first elastic element, and the pressure block is connected to the fixed seat through the second elastic element. The upper locking member includes a locking rod. When the upper locking member is aligned and locked with the corresponding lower locking seat, the latch is radially engaged with the locking rod under the action of the first elastic element, and the pressure block synchronously presses the locking rod axially against the latch under the action of the second elastic element.

2. A display screen locking mechanism as described in claim 1, characterized in that, The fixed seat has a protrusion on the side away from the locking rod. The pressure block is installed in the protrusion. The two ends of the pressure block have a first recess facing away from the locking rod and a second recess facing the locking rod, respectively. One end of the second elastic member acts on the convex bottom wall of the protrusion, and the other end acts on the concave bottom wall of the first recess. The locking rod includes a lock head. When the upper locking member is aligned and locked with the corresponding lower locking seat, the lock head is inserted into the second recess and presses against the concave bottom wall of the second recess.

3. A display screen locking mechanism as described in claim 2, characterized in that, The latch has a lock hole in the middle. The locking rod is provided with a locking shaft, a stepped shaft section and the lock head in sequence along the direction towards the lock hole. In the natural state, the outer wall of the pressure block abuts against the hole wall of the lock hole so that the pressure block is radially engaged with the latch. When the upper locking member is aligned and locked with the corresponding lower locking seat, the lock hole hooks the stepped shaft section so that the latch is radially engaged with the locking rod.

4. A display screen locking mechanism as described in claim 3, characterized in that, The lock head is frustum-shaped, and the diameter of the stepped shaft section is smaller than the maximum diameter of the lock head and the diameter of the lock shaft to form a groove. The width of the groove is greater than the thickness of the latch to smoothly hook the lock hole onto the stepped shaft section.

5. A display screen locking mechanism as described in claim 1, characterized in that, The fixing base is also provided with an elastic element mounting groove, one end of the first elastic element acts on the buckle, and the other end acts on the elastic element mounting groove.

6. A display screen locking mechanism as described in claim 1, characterized in that, The locking component also includes a handle, a lock sleeve, and a third elastic element. The handle is threadedly connected to the lock sleeve, the locking rod is fixed to the handle, and the third elastic element is sleeved on the locking rod.

7. A display screen locking mechanism as described in claim 6, characterized in that, The lock sleeve has a knob portion and the latch has a pressing portion. Both the knob portion and the pressing portion are provided with multiple rows of striped patterns to increase friction.

8. A display screen locking mechanism as described in claim 1, characterized in that, The lower lock seat also includes a locking plate, which is detachably connected to the fixed seat by fasteners, and the lock is installed between the locking plate and the fixed seat.

9. A display screen locking mechanism as described in claim 1, characterized in that, The locking component also includes a limiting screw, and the locking rod is also provided with a limiting groove. The length direction of the limiting groove is in the same direction as the axial direction of the locking rod. The LED display screen frame is provided with a limiting screw hole and a locking rod through hole. The limiting screw hole is used to install the limiting screw, and the bottom of the limiting screw is inserted into the limiting groove. The locking rod through hole is used to assemble the locking rod.

10. A display screen locking mechanism as described in claim 1, characterized in that, The length direction of the first elastic element is perpendicular to the axial direction of the locking rod, and the length direction of the second elastic element is consistent with the axial direction of the locking rod.

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