Connecting device of LED display box body and LED display box body

Abstract

The utility model belongs to the technical field of LED display, and relates to a connecting device of an LED display box body and the LED display box body, the connecting device is installed on a frame on one side of the LED display box body, and the connecting device comprises a lock cylinder, a lock rod body and a jacking screw rod; wherein the lock cylinder is installed in the frame, one end of the lock rod body is installed in the lock cylinder and provided with a groove, the side wall of the groove is arranged to be an inclined face, the other end of the lock rod body is provided with a clamping head, and the clamping head extends out of the side face of the frame and is used for being connected with an adjacent LED display box body in a clamped mode. The jacking screw rod is in threaded connection with the lock cylinder, one end part of the jacking screw rod is exposed out of the frame, and the other end part of the jacking screw rod is propped against the groove; the LED display screen has the beneficial effects that the splicing gap of the box body can be finely adjusted by screwing the jacking screw rod, the operation is simple and convenient, the technical problem that the splicing flatness of an existing LED display screen is poor is solved, and the display effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to a connecting device of an LED display box and an LED display box. Background Art

[0002] With the development of society, LED display screens are gradually developing towards smaller pitches. LED display screens generally use large-area screens, and the LED display screen unit boxes need to be assembled one by one.

[0003] Since the traditional unit box is connected and locked with bolts using connecting plates or simple quick locks, it is difficult to adjust the gap between the boxes after locking, and the splicing flatness of the screen is not ideal. Compared with LED displays with large pitch, LED displays with small pitch have higher requirements for the precision of the splicing gap. If the splicing gap is too large or too small, dark lines or white lines are more likely to appear when lit, resulting in poor display effects.

[0004] Therefore, it is necessary to design a connection device that is convenient for adjusting the size of the splicing seam to improve the splicing flatness and display effect of the LED display screen. 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 utility model provides a connecting device for an LED display box and an LED display box, which solve the technical problems of poor splicing flatness and display effect of the existing LED display screen.

[0007] (II) Technical solution

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

[0009] In a first aspect, an embodiment of the utility model provides a connection device for an LED display box, the connection device is installed on a frame on one side of the LED display box, and includes a lock cylinder, a lock rod body, and a tightening screw;

[0010] The lock cylinder is installed in the frame, one end of the lock rod body is installed in the lock cylinder and is provided with a groove, the side wall of the groove is set as an inclined surface, and the other end of the lock rod body is provided with a card joint, which extends from the side of the frame and is used to be carded together with the adjacent LED display box;

[0011] The tightening screw is threadedly connected to the lock cylinder, one end of the tightening screw is exposed from the frame, and the other end is abutted against the groove. When the tightening screw pushes inwardly against the inclined surface of the groove away from the card joint, the lock rod body moves relative to the tightening screw to tighten the two adjacent LED display boxes together.

[0012] Optionally, the locking rod body includes a tightening end and a clamping joint in sequence, the groove is located at the tightening end, and the outer wall between the groove and the clamping joint is recessed inwardly to form a neck.

[0013] Optionally, the lock cylinder includes a screw matching hole and a lock rod mounting hole which penetrate each other, the tightening screw is threadedly connected to the screw matching hole, and the tightening end is placed in the lock rod mounting hole.

[0014] Optionally, the tightening screw and the locking rod body are arranged perpendicular to each other.

[0015] Optionally, an operating port is provided at one end of the tightening screw, and the operating port is exposed on the front side of the frame. A top-contact spherical surface is provided at the other end of the tightening screw, and the top-contact spherical surface abuts against the inclined surface.

[0016] Optionally, a rubber ring is provided on the outer peripheral side wall of the lock cylinder to prevent the lock cylinder from rotating or moving.

[0017] In the second aspect, an embodiment of the utility model provides an LED display box, which includes a first frame and a second frame relative to each other, the first frame is equipped with the aforementioned connecting device, and the second frame is provided with a movable window at a position opposite to the connecting device, the movable window includes a movable opening and a snap-fit ​​opening that are interconnected, the movable opening allows a snap-fit ​​joint of a locking rod body to pass through, and the snap-fit ​​opening is used to snap-fit ​​with the snap-fit ​​joint.

[0018] Optionally, the movable opening is in an elongated strip shape and extends along the length direction of the second frame, and the diameter of the neck of the locking rod body is smaller than the diameter of the engaging opening and smaller than the diameter of the engaging joint of the locking rod body.

[0019] Optionally, a mounting through hole is provided on the front of the first frame, a locking rod through hole is provided on the side of the first frame, the lock cylinder is installed in the mounting through hole, and the locking rod body extends out of the locking rod through hole.

[0020] Optionally, installation grooves are provided on the outer sides of the first frame and the second frame, and magnetic positioning members are installed in the installation grooves.

[0021] (III) Beneficial effects

[0022] The beneficial effects of the utility model are:

[0023] 1. The utility model discloses a connecting device for an LED display box and an LED display box. Since the first frame of the LED display box is equipped with a connecting device and the second frame is provided with a movable opening and a snap-fitting opening, when two LED display boxes are spliced, the snap-fitting joint of the connecting device of one of the LED display boxes is first extended into the movable opening, then moved to the snap-fitting opening, and finally the tightening screw is rotated to tighten the inclined surface of the groove away from the snap-fitting joint inwardly, and the locking rod body moves relative to the tightening screw to tighten the two adjacent LED display boxes together, and the splicing gap of the boxes can be fine-tuned by rotating the tightening screw. The operation is simple and convenient, and the technical problem of poor splicing flatness of the existing LED display screen is solved, and the display effect is better.

[0024] 2. The connecting device includes a lock cylinder, a lock rod body and a tightening screw, which has a simple structure and is easier to assemble. The joint gap of the box can be adjusted and it is highly practical.

[0025] 3. The connecting device is installed in the first frame, which effectively reduces the thickness of the LED display box, making the LED display box lighter and thinner.

[0026] 4. The operation port of the tightening screw is exposed on the front of the frame. The splicing operation and the fine-tuning of the splicing gap of the cabinet are all performed on the front of the screen, which can be operated by one person, saving manpower and increasing the splicing speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front view schematic diagram of a connecting device of an LED display box and an embodiment 1 of an LED display box of the utility model;

[0028] Figure 2 It is a side view schematic diagram of a connecting device of an LED display box and an embodiment 1 of an LED display box of the utility model;

[0029] Figure 3 It is a schematic diagram of the splicing state of two boxes of a connecting device of an LED display box and an embodiment 1 of the LED display box of the utility model (partial enlargement);

[0030] Figure 4 It is an exploded schematic diagram of a connection device of an LED display box and a connection device of embodiment 1 of an LED display box of the utility model;

[0031] Figure 5 It is a schematic diagram of a connecting device of an LED display box and a connecting device of Embodiment 1 of the LED display box in a state where the connecting device and the second frame are not connected;

[0032] Figure 6 for Figure 3 Schematic cross-sectional view at AA in the middle;

[0033] Figure 7 It is a top view schematic diagram of the splicing state of two boxes of a connecting device of an LED display box and an embodiment 1 of an LED display box of the utility model;

[0034] Figure 8 for Figure 7 Cross-sectional view at BB in .

[0035] [Description of Reference Numerals]

[0036] 1. Lock cylinder; 11. Screw matching hole; 12. Lock rod installation hole;

[0037] 2. Lock rod body; 21. Groove; 211. Inclined surface; 22. Neck; 23. Card connector;

[0038] 3. Tightening screw; 31. Operation port; 32. Top contact spherical surface;

[0039] 4. Rubber ring;

[0040] 5. first frame; 51. mounting through hole; 52. locking rod through hole;

[0041] 6. second frame; 611. movable opening; 612. engaging opening;

[0042] 7. Magnetic positioning member; 71. Positioning plate; 72. Colloid; 73. Magnet. DETAILED DESCRIPTION

[0043] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Figure 1 The orientation is used as a reference, wherein the direction where the first frame 5 is located is the “left”, the direction where the second frame 6 is located is the “right”, the side where the operation port 31 of the first frame 5 is located is the “front”, and the opposite side is the “back”.

[0044] The utility model provides a connecting device for an LED display box and an LED display box, wherein the connecting device is installed on a frame on one side of the LED display box, and comprises a lock cylinder, a lock rod body and a tightening screw; wherein the lock cylinder is installed in the frame, one end of the lock rod body is installed in the lock cylinder and is provided with a groove, the side wall of the groove is set as an inclined surface, and the other end of the lock rod body is provided with a clamping joint, which extends from the side of the frame and is used to be clamped together with an adjacent LED display box; the tightening screw is threadedly connected with the lock cylinder, one end of the tightening screw is exposed from the frame, and the other end is abutted against the groove; relative to the prior art, when the tightening screw is screwed forward, it tightens the inclined surface in the groove away from the clamping joint inwardly, and the lock rod body moves relative to the tightening screw to tighten the two adjacent LED display boxes together, and conversely, when the tightening screw is screwed backward, the splicing gap between the boxes can be enlarged, so the splicing gap of the boxes can be fine-tuned, the operation is simple and convenient, and the technical problem of poor splicing flatness of the existing LED display screen is solved, and the display effect is better.

[0045] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0046] Embodiment 1:

[0047] Reference Figure 1 and Figure 2 The present embodiment 1 provides a connection device for an LED display box, which is installed on a frame on one side of the LED display box and includes a lock cylinder 1, a lock rod body 2 and a tightening screw 3 that cooperate with each other.

[0048] See also Figure 4 , Figure 7 and Figure 8 , wherein the lock cylinder 1 is installed in the frame, one end of the lock rod body 2 is installed in the lock cylinder 1, and is provided with a tightening groove 21, the side wall of the tightening groove 21 is set as an inclined surface 211, and the other end of the lock rod body 2 is provided with a clamping joint 23, which extends from the side of the frame and is used to be clamped together with the adjacent LED display box; the tightening screw 3 is threadedly connected with the lock cylinder 1, one end of the tightening screw 3 is exposed from the frame, and the other end is abutted against the tightening groove 21.

[0049] When the tightening screw 3 is screwed in the forward direction, it presses the inclined surface 211 in the groove 21 away from the card joint 23 inwardly, and the locking rod body 2 moves relative to the tightening screw 3 to tighten the two adjacent LED display boxes together; on the contrary, when the tightening screw 3 is screwed in the reverse direction, the splicing gap between the boxes can be enlarged, so the splicing gap of the boxes can be fine-tuned. The operation is simple and convenient, which solves the technical problem of poor splicing flatness of the existing LED display screen and has a better display effect.

[0050] See also Figure 4 and Figure 8 As a feasible solution, the locking rod body 2 includes a tightening end and a clamping joint 23 in sequence, the tightening groove 21 is located at the tightening end, and the outer wall between the tightening groove 21 and the clamping joint 23 is recessed inward to form a neck 22.

[0051] Continue reading Figure 4 and Figure 8 In some feasible solutions, the lock cylinder 1 includes a screw matching hole 11 and a lock rod mounting hole 12 that are perpendicular to each other, and the jacking screw 3 is threadedly connected to the screw matching hole 11, and the jacking end is placed in the lock rod mounting hole 12. The jacking screw 3 and the lock rod body 2 are arranged perpendicular to each other, so when the jacking screw 3 is pushed inward, the force applied by the jacking screw 3 to the lock rod body 2 is perpendicular to the movement direction of the lock rod body 2, and the lock rod body 2 is not subjected to force in its movement direction. In the locked state, the connecting device does not apply force to the box.

[0052] See also Figure 3 and Figure 8 In some feasible solutions, an operation port 31 is provided at one end of the tightening screw 3, and the operation port 31 is exposed on the front of the frame, so that the operator can easily splice the box body on the front of the screen body and adjust the splicing gap at the same time. A top contact spherical surface 32 is provided at the other end of the tightening screw 3, and the top contact spherical surface 32 is in contact with the inclined surface 211.

[0053] See also Figure 4 and Figure 8 In actual application, a rubber ring 4 is provided on the outer peripheral side wall of the lock cylinder 1 to prevent the lock cylinder 1 from rotating or moving.

[0054] Embodiment 2:

[0055] Reference Figure 1 and Figure 2On the basis of Embodiment 1, Embodiment 2 provides an LED display box. The LED display box includes two sets of frames, one of which is a first frame 5 and a second frame 6. The first frame 5 is equipped with the aforementioned connecting device, and the second frame 6 is provided with an active window at a position opposite to the connecting device. The active window includes an active opening 611 and a snap-fit ​​opening 612 that are interconnected, and the two are arranged along the length direction of the frame. The active opening 611 allows the snap-fit ​​joint 23 of the lock rod body 2 to pass through, and the snap-fit ​​opening 612 is used to snap-fit ​​with the snap-fit ​​joint 23.

[0056] See also Figure 5 As a feasible solution, the movable opening 611 is in the shape of a long strip, extending along the length direction of the second frame 6, and the diameter of the neck 22 of the locking rod body 2 is less than the diameter of the engaging opening 612, which is less than the diameter of the engaging joint 23 of the locking rod body 2, ensuring that the neck 22 of the locking rod body 2 can slide into the engaging opening 612, and the lower part of the engaging joint 23 can be engaged with the outer wall of the engaging opening 612.

[0057] See also Figure 4 and Figure 8 As a feasible solution, a mounting through hole 51 is provided on the front of the first frame 5 , a lock rod through hole 52 is provided on the side of the first frame 5 , the lock cylinder 1 is installed in the mounting through hole 51 , and the lock rod body 2 extends from the lock rod through hole 52 .

[0058] See also Figure 4 and Figure 6 In order to facilitate the positioning between the two LED display boxes, a mounting groove is provided on the outer side of the first frame 5 and the second frame 6, and a magnetic positioning member 7 is installed in the mounting groove. The magnetic positioning member 7 includes a positioning plate 71, a colloid 72 and a magnet 73. The positioning plate 71 is installed in the mounting groove, one end of the colloid 72 is installed in the positioning plate 71, and the magnet 73 is installed in the colloid 72 in the positioning plate 71 and exposed to the positioning plate 71. The other end of the colloid 72 extends into the first frame 5 or the second frame 6 and forms an abutment platform.

[0059] For the convenience of description and distinction, the two LED display boxes to be spliced ​​are named the first box and the second box respectively. When two adjacent LED display boxes are spliced ​​left and right, first lift the first box higher than the second box so that the two are staggered by a certain height in the longitudinal direction, so that the locking rod body 2 on the first frame 5 of the first box extends into the movable opening 611 of the second frame 6 of the second box, and then move the first box to be flush with the second box, so that the clamping joint 23 of the locking rod body 2 slides into the clamping opening 612, and finally screw the top screw 3 forward to make the locking rod body 2 move relative to the top screw 3 to tighten the two adjacent LED display boxes together. When the splicing gap between the two boxes is too small, the size of the splicing gap can be fine-tuned by screwing the top screw 3 in the reverse direction to a suitable angle. The operation is simple and quick.

[0060] The splicing gap of the box body is adjusted by tightening the screw rod 3, which is easy to operate, has low requirements on the experience and professional level of the operator, and has relatively low requirements on the accuracy of the box body size, thereby greatly reducing the production cost.

[0061] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or 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 be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0064] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0065] 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 of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A connection device for an LED display box, the connection device being mounted on a frame on one side of the LED display box, characterized in that: It comprises a lock cylinder (1), a lock rod body (2) and a tightening screw (3); The lock cylinder (1) is installed in the frame, one end of the lock rod body (2) is installed in the lock cylinder (1) and is provided with a groove (21), the side wall of the groove (21) is set as an inclined surface (211), and the other end of the lock rod body (2) is provided with a clamping joint (23), and the clamping joint (23) extends from the side of the frame and is used for clamping with an adjacent LED display box; The tightening screw (3) is threadedly connected to the lock cylinder (1); one end of the tightening screw (3) is exposed from the frame, and the other end is in contact with the groove (21).

2. A connection device for an LED display box as claimed in claim 1, characterized in that: The locking rod body (2) comprises a tightening end and a clamping joint (23) in sequence, the groove (21) is located at the tightening end, and the outer wall between the groove (21) and the clamping joint (23) is recessed inwards to form a neck (22).

3. A connecting device for an LED display box as claimed in claim 2, characterized in that: The lock cylinder (1) comprises a screw matching hole (11) and a lock rod mounting hole (12) which are interpenetrating, the tightening screw (3) is threadedly connected to the screw matching hole (11), and the tightening end is placed in the lock rod mounting hole (12).

4. A connecting device for an LED display box as claimed in claim 1, characterized in that: The tightening screw (3) and the locking rod body (2) are arranged perpendicular to each other.

5. The connecting device of an LED display box according to claim 1, characterized in that: One end of the tightening screw rod (3) is provided with an operating port (31), the operating port (31) is exposed on the front side of the frame, and the other end of the tightening screw rod (3) is provided with a top contact spherical surface (32), the top contact spherical surface (32) abuts against the inclined surface (211).

6. A connecting device for an LED display box as claimed in claim 1, characterized in that: The outer peripheral side wall of the lock cylinder (1) is provided with a rubber ring (4) for preventing the lock cylinder (1) from rotating or moving.

7. An LED display box, characterized in that: The LED display box comprises a first frame (5) and a second frame (6) relative to each other, the first frame (5) being installed with a connecting device as described in any one of claims 1 to 6, the second frame (6) being provided with a movable window at a position opposite to the connecting device, the movable window comprising a movable opening (611) and a snap-fit ​​opening (612) which are interconnected, the movable opening (611) allowing a snap-fit ​​joint (23) of the locking rod body (2) to pass through, and the snap-fit ​​opening (612) being used for snap-fitting with the snap-fit ​​joint (23).

8. The LED display box according to claim 7, characterized in that: The movable opening (611) is in the shape of an elongated strip and extends along the length direction of the second frame (6); the diameter of the neck (22) of the locking rod body (2) is smaller than the diameter of the snap-fit ​​opening (612) and smaller than the diameter of the snap-fit ​​joint (23) of the locking rod body (2).

9. The LED display box according to claim 7, characterized in that: The front side of the first frame (5) is provided with a mounting through hole (51), the side side of the first frame (5) is provided with a locking rod through hole (52), the lock cylinder (1) is installed in the mounting through hole (51), and the locking rod body (2) protrudes from the locking rod through hole (52).

10. An LED display box according to any one of claims 7 to 9, characterized in that: The outer sides of the first frame (5) and the second frame (6) are provided with mounting grooves, and magnetic positioning members (7) are installed in the mounting grooves.

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