Radian adjusting mechanism, LED display module and LED display screen

Abstract

The utility model discloses a radian adjusting mechanism, an LED display module and an LED display screen, the radian adjusting mechanism comprises a first rocker arm and a second rocker arm, the first rocker arm and the second rocker arm are hinged to form a cross arm, two ends of the first rocker arm and two ends of the second rocker arm are provided with ball heads, the ball heads are universally connected with positioning blocks, and the positioning blocks are connected with the first rocker arm and the second rocker arm. And at least one positioning block is connected with a locking device. The locking device comprises a lock box and an upper gland, the positioning block is slidably arranged in the lock box, a positioning protrusion is arranged on the upper portion of the positioning block, a sawtooth limiting strip is slidably arranged on the upper gland, and an adjusting arm is connected to the sawtooth limiting strip. And a compression spring is arranged between the sawtooth limiting strip and the upper gland. One end of the adjusting arm is hinged to the sawtooth limiting strip, and the other end of the adjusting arm is connected with a starting structure. The starting structure comprises an adjusting lock and a pressing plate, the adjusting lock extends into the adjusting arm for limiting, and the pressing plate is used for driving the adjusting arm to move around the hinge point to achieve movement of the sawtooth limiting strip.

Description

Technical Field

[0001] The utility model relates to the technical field of arc adjustment of LED display screens, in particular to a radian adjustment mechanism, an LED display module and an LED display screen. Background Technique

[0002] In recent years, the technology of LED display screens has developed rapidly, and LED display screens have also been rapidly popularized. They have been widely used in many occasions, and people's requirements for LED display screens are getting higher and higher. In some occasions, arc-shaped screens are required for the best display effect. The existing splicing method of arc-shaped screens is to first fix multiple LED display units on a box body to form an LED display module, and then use the arc-shaped locks on the box body to change the connection angles of adjacent LED display modules to achieve the splicing of the arc-shaped screen. Currently, the existing technology mainly uses an H-shaped structure for radian adjustment.

[0003] Chinese patents such as CN112443566A and CN221075882U have both disclosed an H-shaped radian adjustment structure, and the length of the telescopic unit is adjusted to achieve fixation after radian adjustment.

[0004] Currently, the operation convenience of the radian adjustment structure is not high, rapid operation cannot be achieved, and the operation stability is not high, which is inconvenient to use. Content of the Utility Model

[0005] The purpose of the utility model is to provide a radian adjustment mechanism for use on an LED display module to achieve rapid radian adjustment of the LED display module and solve the problems of low operation convenience and inability to achieve rapid operation of the current radian adjustment structure.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A radian adjustment mechanism, comprising: a first rocker arm and a second rocker arm, the first rocker arm and the second rocker arm are hinged to form a cross arm, ball heads are arranged at both ends of the first rocker arm and the second rocker arm, the ball heads are universally connected to positioning blocks, and at least one of the positioning blocks is connected with a locking device.

[0007] As a further improvement of the above technical solution:

[0008] The locking device includes a lock box and an upper pressure cover. The positioning block is slidably arranged in the lock box. A positioning protrusion is arranged on the upper part of the positioning block. A serrated limiting strip is slidably arranged on the upper pressure cover, and an adjusting arm is connected to the serrated limiting strip.

[0009] A compression spring is arranged between the serrated limiting strip and the upper pressure cover.

[0010] The adjusting arm is hinged in the upper pressure cover. One end of the adjusting arm is hinged to the serrated limiting strip, and the other end is connected with a starting structure.

[0011] The starting structure includes an adjusting lock and a pressing plate. The adjusting lock extends into the adjusting arm for limiting, and the pressing plate is used to drive the adjusting arm to move around the hinge point, realizing the movement of the serrated limiting strip.

[0012] The adjusting arm is slidably arranged on the upper pressing cover, and the adjusting arm is in wedge-shaped cooperation with the serrated limiting strip.

[0013] On the other hand, the present utility model also discloses an LED display module, which includes a frame and a plurality of display units arranged on the frame. The display units are connected by elastic clips. The frame includes a middle frame and a side frame, and a radian adjusting mechanism is arranged between the middle frame and the side frame for adjusting the radian of the display units.

[0014] As a further improvement of the above technical solution:

[0015] Connection locks are arranged on both the side frame and the middle frame for combining multiple LED display modules.

[0016] One of the locking devices is installed on the side frame, and the other locking device is installed on the middle frame. The two locking devices have the same principle, but some structures are different. The locking device on the side frame is connected to the handle, and the radian adjustment is realized by operating the handle. The locking device on the middle frame is used to improve the use safety.

[0017] On the other hand, the present utility model also discloses an LED display screen, which is assembled by multiple LED display modules.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] The radian adjusting mechanism of the present utility model adopts an X-shaped cross arm, which has higher rigidity and anti-twisting ability, high adjustability and stability, and can realize fast and convenient adjustment.

[0020] Its execution end is located on the side frame, and the radian adjustment is realized by holding the handle on the side frame, solving the problems of low operation convenience and inability to achieve fast operation of the current radian adjustment structure. Description of the Drawings

[0021] Figure 1 It is one of the schematic diagrams of the cross-arm structure of the present utility model;

[0022] Figure 2 It is the second schematic diagram of the cross-arm structure of the present utility model;

[0023] Figure 3 It is one of the schematic diagrams of the locking device structure of the present utility model;

[0024] Figure 4Schematic diagram of the installation structure of the cross arm of the present utility model;

[0025] Figure 5 The present utility model Figure 4 Schematic diagram of the sectional structures of A-A and B-B in the present utility model;

[0026] Figure 6 The present utility model Figure 5 Schematic diagram of the enlarged structure at position C in the present utility model;

[0027] Figure 7 Schematic diagram of the frame structure of the present utility model;

[0028] Figure 8 Schematic diagram of the LED display module structure of the present utility model;

[0029] Figure 9 Schematic diagram of the overall structure of the display unit of the present utility model;

[0030] Figure 10 The present utility model Figure 9 Schematic diagram of the enlarged structure at position D in the present utility model;

[0031] Figure 11 The present utility model Figure 9 Schematic diagram of the enlarged structure at position E in the present utility model;

[0032] Figure 12 Schematic diagram of the installation structure of the lock plate of the present utility model;

[0033] Figure 13 Another schematic diagram of the starting structure of the present utility model;

[0034] Figure 14 One of the schematic diagrams of the internal structure of the starting structure of the present utility model;

[0035] Figure 15 Another schematic diagram of the internal structure of the starting structure of the present utility model.

[0036] Reference numerals: 1, first rocker arm; 2, second rocker arm; 3, ball head; 4, positioning block; 41, positioning protrusion; 5, locking device; 51, lock box; 52, upper pressure cover; 53, serrated limit strip; 54, adjusting arm; 55, compression spring; 56, starting structure; 561, adjusting lock; 562, pressing plate; 61, frame; 611, middle frame; 612, side frame; 62, display unit; 63, elastic clip; 64, connecting lock; 65, lock plate. Detailed implementation manners

[0037] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0038] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0041] As Figure 1 and Figure 2 shown, the radian adjustment mechanism of this embodiment includes: a first rocker arm 1 and a second rocker arm 2. The first rocker arm 1 and the second rocker arm 2 are hinged to form a cross arm. Ball heads 3 are provided at both ends of the first rocker arm 1 and the second rocker arm 2. The ball heads 3 are connected to positioning blocks 4 in a universal joint manner. At least one positioning block 4 is connected to a locking device 5.

[0042] As Figures 3 to 6 shown, the locking device 5 includes a lock box 51 and an upper pressing cover 52. The positioning block 4 is slidably arranged in the lock box 51. A positioning protrusion 41 is provided on the upper part of the positioning block 4. A serrated limit bar 53 is slidably arranged on the upper pressing cover 52. An adjusting arm 54 is connected to the serrated limit bar 53. A compression spring 55 is arranged between the serrated limit bar 53 and the upper pressing cover 52. The adjusting arm 54 is hinged inside the upper pressing cover 52. One end of the adjusting arm 54 is hinged to the serrated limit bar 53, and the other end is connected to a starting structure 56. The adjusting arm 54 is slidably arranged on the upper pressing cover 52, and the adjusting arm 54 is in wedge-shaped fit with the serrated limit bar 53.

[0043] AsFigures 13 to 15 The starting structure 56 includes an adjusting lock 561 and a pressing plate 562. The adjusting lock 561 extends into the adjusting arm 54 for limiting, and the pressing plate 562 is used to drive the adjusting arm 54 to move around the hinge point, realizing the movement of the sawtooth limiting strip 53. The adjusting lock 561 is a bolt lock for restricting the movement of the adjusting arm 54.

[0044] As Figures 7 to 10 shown, the LED display module of this embodiment includes a frame 61 and a plurality of display units 62 arranged on the frame 61. It should be noted that the LED display module further includes a power module and a plurality of connection structures for combining the frame 61 and the display units 62. The display units 62 are connected to each other by elastic clips 63. The elastic frame 63 is a V-shaped structure with a certain elasticity that can be compressed and stretched, thus realizing the arc change of the LED display module. The frame 61 includes a middle frame 611 and a side frame 612. A curvature adjusting mechanism is provided between the middle frame 611 and the side frame 612 for adjusting the curvature of the display units 62. Connection locks 64 are provided on both the side frame 612 and the middle frame 611 for combining multiple LED display modules. One locking device 5 is installed on the side frame 612, and another locking device 5 is installed on the middle frame 611.

[0045] As Figure 11 and Figure 12 shown, a plurality of display units 62 of this embodiment include an upper and a lower layer structure, which are locked by a lock plate 65 to ensure the synchronous operation of the upper and lower layer structures. The lock plate 65 is a bolt structure; the upper layer structure is a bolt, and the lower layer structure includes a lock hole for accommodating the bolt. The locking is achieved by inserting the bolt into the lock hole.

[0046] The LED display screen of this embodiment is assembled from a plurality of LED display modules. Multiple LED display modules are combined through connection locks 6 to obtain the required display screen.

[0047] The display effect of the LED display screen is achieved by adjusting the angles of multiple LED display modules. The method for adjusting the curvature of the LED display module includes:

[0048] Unlocking the locking device 5 installed on the middle frame 611 to enable one end of the first rocker arm 1 to slide along the lock box 51. By holding the starting structure 56 and pressing the pressing plate 562, the adjusting arm 54 is driven to move around the hinge point, causing the adjusting arm 54 to drive the sawtooth limiting strip 53 to rise, releasing the limit on the positioning block 4. By manually moving the handle, the curvature adjustment can be realized. After the curvature adjustment is completed, release the pressing plate 562. Under the force of the compression spring 55, the sawtooth limiting strip 53 is combined with the positioning protrusion 41 to achieve locking. To ensure the locking effect, the adjusting arm 54 in the locking device 5 installed on the middle frame 611 is also locked. The operation is convenient and rapid curvature adjustment can be achieved.

[0049] The above are only embodiments of the present utility model, and common knowledge such as specific structures and characteristics known in the art are not described in detail herein. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A radian adjustment mechanism, characterized in that, Comprising: A first rocker arm (1) and a second rocker arm (2), the first rocker arm (1) and the second rocker arm (2) are hinged to form a cross arm. Ball heads (3) are provided at both ends of the first rocker arm (1) and the second rocker arm (2), and the ball heads (3) are connected to positioning blocks (4) in a universal joint manner. At least one of the positioning blocks (4) is connected to a locking device (5).

2. The arc adjustment mechanism according to claim 1, wherein: The locking device (5) includes a lock box (51) and an upper gland (52). The positioning block (4) is slidably arranged in the lock box (51). A positioning protrusion (41) is provided on the upper part of the positioning block (4). A serrated limit bar (53) is slidably arranged on the upper gland (52), and an adjusting arm (54) is connected to the serrated limit bar (53).

3. The arc adjustment mechanism according to claim 2, characterized in that: A compression spring (55) is arranged between the serrated limit bar (53) and the upper gland (52).

4. The arc adjustment mechanism according to claim 3, wherein: The adjusting arm (54) is hinged in the upper gland (52). One end of the adjusting arm (54) is hinged to the serrated limit bar (53), and the other end is connected to a starting structure (56).

5. The arc adjustment mechanism according to claim 4, characterized in that: The starting structure (56) includes an adjusting lock (561) and a pressing plate (562). The adjusting lock (561) extends into the adjusting arm (54) for limiting, and the pressing plate (562) is used to drive the adjusting arm (54) to move around the hinge point to realize the movement of the serrated limit bar (53).

6. The arc adjustment mechanism according to claim 3 or 4, characterized in that: The adjusting arm (54) is slidably arranged on the upper gland (52), and the adjusting arm (54) is in wedge-shaped fit with the serrated limit bar (53).

7. An LED display module, characterized in that: Comprising a frame (61) and a plurality of display units (62) arranged on the frame (61). The display units (62) are connected to each other by elastic clips (63). The frame (61) includes a middle frame (611) and a side frame (612). An arc adjusting mechanism as described in claim 6 is arranged between the middle frame (611) and the side frame (612) for adjusting the arc of the display units (62).

8. The LED display module according to claim 7, wherein: Connection locks (64) are arranged on both the side frame (612) and the middle frame (611) for realizing the combination of multiple LED display modules.

9. The LED display module according to claim 8, wherein: One of the locking devices (5) is installed on the side frame (612), and the other locking device (5) is installed on the middle frame (611).

10. An LED display screen, characterized in that: Assembled from a plurality of LED display modules as described in claim 9.

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