Clamp of display device

Abstract

The utility model discloses a fixture of a display device, which belongs to the technical field of LED display screen assembly and comprises a base, a driving mechanism and a plurality of clamping components, a driving gear and a plurality of driven gears are respectively rotatably connected to the base, the driving gear is meshed with each driven gear, the end of a clamping arm is connected to the driven gears, and the clamping components are connected with the driving mechanism. When the driving gear rotates, the multiple driven gears can be synchronously driven to rotate together, then the multiple clamping arms are synchronously driven to swing relative to the base, when the ends of the two clamping arms move oppositely, a workpiece can be clamped, when the ends of the two clamping arms move oppositely, the workpiece can be released, and the multiple driven gears and the corresponding clamping arms are driven by the driving gear to move. The synchronous movement of a plurality of clamping arms can be ensured, so that the deviation or dislocation among a plurality of workpieces can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screen assembly, in particular to a clamp for a display device. Background Art

[0002] Currently, LED display screens are usually composed of multiple display modules (i.e., light panels) spliced ​​on a housing, and multiple display modules are spliced ​​to form a larger display screen. Traditional assembly methods mostly rely on manual operations, that is, operators need to manually align the edges of each display module with the housing, and align two adjacent display modules, and then use adhesives or other fixing methods (such as screws) to complete the combination of the display module and the housing.

[0003] However, due to the inaccuracy of human eye judgment and manual operation, it is difficult to achieve high precision in the alignment between two adjacent display modules, and the alignment between the edge of the display module and the edge of the shell. It is easy to produce offset or misalignment, which easily leads to the phenomenon of bright and dark lines between two adjacent display modules. Therefore, the offset or misalignment of the display module will affect the visual comfort and overall aesthetics. Moreover, when more display modules need to be installed on the shell, the misalignment problem between two adjacent display modules will be continuously magnified, which greatly reduces the production yield. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a fixture for a display device to solve the problem of misalignment of the current lamp panel assembly.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A fixture for a display device comprises a base, a driving mechanism and a plurality of clamping components;

[0007] The driving mechanism comprises a driving gear and a plurality of driven gears, wherein the driving gear and the driven gears are respectively rotatably connected to the base, and the driving gear and the driven gears are meshed with each other;

[0008] The clamping assembly comprises two clamping arms arranged opposite to each other, and one end of the clamping arm is connected to the driven gear.

[0009] Preferably, the rotation plane of the clamping arm is parallel to the base.

[0010] Preferably, the clamping assembly comprises a clamping member movably connected to the clamping arm, the clamping member is parallel to the base, and the clamping member is slidably connected to the base.

[0011] Preferably, a plurality of the driven gears are evenly arranged around the driving gear.

[0012] Preferably, the clamping assembly further comprises a connecting block and a connecting groove, wherein the connecting block is slidably embedded in the connecting groove, and one of the connecting block and the connecting groove is arranged on the clamping member, and the other is arranged on the clamping arm.

[0013] Preferably, the clamping arm comprises a first arm and a second arm which are perpendicular to and connected to each other, the first arm is connected to the driven gear, and the second arm is used for clamping the workpiece.

[0014] Preferably, the driving gear is annular, and the clamping member is located on the inner side of the driving gear.

[0015] Preferably, a plurality of negative pressure holes are provided on the base.

[0016] Preferably, the clamping assembly comprises a guide rail provided on the base, and the clamping member is slidably connected to the guide rail.

[0017] Preferably, the driving gear, the driven gear and the clamping arm are all located on the same surface of the base.

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

[0019] The driving gear and multiple driven gears are respectively rotatably connected to the base, and the driving gear is meshed with each driven gear. The end of the clamping arm is connected to the driven gear. When the driving gear rotates, it can synchronously drive the multiple driven gears to rotate together, and then synchronously drive the multiple clamping arms to swing relative to the base. When the ends of the two clamping arms move toward each other, they can clamp the workpiece, and when they move away from each other, they can release the workpiece. By driving the multiple driven gears and the corresponding clamping arms to move, the movement of the multiple clamping arms can be ensured to be synchronized to avoid offset or misalignment between the multiple workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the fixture of the display device of the utility model;

[0021] Figure 2 A schematic top view of a fixture of a display device of the utility model;

[0022] Figure 3 It is a schematic cross-sectional structure diagram of a fixture of a display device of the utility model;

[0023] Figure 4 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0024] In the figure: 10, base; 11, negative pressure hole; 12, front; 13, back; 14, mounting cavity; 15, cover plate; 20, driving mechanism; 21, driving gear; 22, driven gear; 30, clamping assembly; 31, clamping arm; 311, connecting groove; 312, first arm; 313, second arm; 32, clamping member; 321, connecting block; 33, guide rail; 40, workpiece. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] Example 1

[0029] Combination Figures 1 to 4 As shown, a clamp of a display device of the present invention is schematically shown, comprising a base 10 , a driving mechanism 20 and a plurality of clamping assemblies 30 .

[0030] like Figure 2The driving mechanism 20 includes a driving gear 21 and a plurality of driven gears 22. The driving gear 21 and the driven gear 22 are respectively rotatably connected to the base 10. The plurality of driven gears 22 are evenly arranged around the driving gear 21. The driving gear 21 and the driven gear 22 are meshed with each other. When the driving gear 21 rotates, it can simultaneously drive the plurality of driven gears 22 to follow the rotation. The plurality of driven gears 22 have the same number of teeth, so the rotation speeds of the driven gears 22 are consistent. The driving gear 21 can be directly driven by a driving motor, which requires that the main shaft of the driving motor is directly connected to the driving gear 21. Of course, the driving gear 21 can also be driven by a power assembly, which includes a driving motor and a transmission gear installed on the main shaft of the driving motor. The transmission gear is meshed with the driving gear 21, thereby driving the driving motor to drive the driving gear 21 to rotate.

[0031] The number of the clamping assembly 30 is one or more, and each clamping assembly 30 includes two clamping arms 31 arranged opposite to each other. The number of the clamping arms 31 is consistent with the number of the driven gears 22, and each driven gear 22 corresponds to a clamping arm 31. One end of the clamping arm 31 is connected to the driven gear 22, and the other end of the clamping arm 31 is used to clamp the workpiece 40. Specifically, the rotation plane of the clamping arm 31 is parallel to the base 10, and the driving gear 21, the driven gear 22 and the clamping arm 31 are all located on the same surface of the base 10, which is conducive to controlling the overall thickness of the clamp of the display device so that it occupies less space.

[0032] When the driving gear 21 rotates forward, the multiple driven gears 22 rotate accordingly and drive the clamping arms 31 to swing relative to the base 10. At this time, the swinging ends of the two clamping arms 31 in the clamping assembly 30 move toward each other to clamp the workpiece 40. Since the driven gears 22 have the same number of teeth, the driving gear 21 can synchronously drive the multiple clamping arms 31 to swing, and the swinging speed and amplitude of the clamping arms 31 are consistent. The multiple clamping arms 31 that move synchronously are beneficial to avoiding offset or misalignment between the multiple workpieces 40.

[0033] When the driving gear 21 rotates in the reverse direction, the plurality of driven gears 22 rotate accordingly and drive the clamping arms 31 to swing relative to the base 10 . At this time, the swinging ends of the two clamping arms 31 in the clamping assembly 30 move away from each other to release the workpiece 40 .

[0034] Of course, the number of clamping assemblies 30 can be set to two, and the movement directions of the clamping arms 31 of the two clamping assemblies 30 are perpendicular to each other, so that the two clamping assemblies 30 can adjust the position of the workpiece 40 in two mutually perpendicular directions and keep multiple workpieces 40 aligned in two mutually perpendicular directions.

[0035] Combination Figure 1 and Figure 2As shown, the clamping assembly 30 includes a clamping member 32 and a guide rail 33 provided on the base 10. The clamping member 32 is movably connected to the clamping arm 31. The clamping member 32 is parallel to the base 10 and is slidably connected to the base 10. The clamping arm 31 can drive the clamping member 32 to slide on the base 10. When clamping the workpiece 40, the side of the clamping member 32 and the side of the workpiece 40 are parallel to each other and abut against each other to increase the contact area between the clamping member 32 and the workpiece 40, so as to avoid the contact area between the two being too small and causing the force to be concentrated, causing the workpiece 40 to deviate. The clamping member 32 is slidably connected to the guide rail 33. There are multiple guide rails 33, and each clamping member 32 corresponds to two mutually parallel guide rails 33. The provision of multiple guide rails 33 can make the sliding of the clamping member 32 more stable.

[0036] Furthermore, if Figure 4 The clamping assembly 30 also includes a connecting block 321 and a connecting groove 311. The connecting block 321 can be slidably embedded in the connecting groove 311. One of the connecting block 321 and the connecting groove 311 is provided on the clamping member 32, and the other is provided on the clamping arm 31. In this embodiment, the connecting block 321 is provided on the clamping member 32, and the connecting groove 311 is provided at one end of the clamping arm 31. The setting of the connecting block 321 and the connecting groove 311 enables the clamping arm 31 and the clamping member 32 to swing relative to each other.

[0037] The clamping arm 31 includes a connecting portion and a first arm 312 and a second arm 313 which are perpendicular to each other. The first arm 312 is connected to the driven gear 22, and the second arm 313 is used to clamp the workpiece 40. The extension trajectory of the connecting portion is C-shaped, and the two ends of the connecting portion are respectively connected to the end of the first arm 312 and the end of the second arm 313, so that the clamping arm 31 is roughly L-shaped. The L-shaped clamping arm 31 can provide greater clamping force when clamping the workpiece 40, and ensure that the clamping arm 31 will not be subjected to excessive force and produce abnormal deformation.

[0038] In this embodiment, the driving gear 21 is annular, and the clamping member 32 , the guide rail 33 , and the workpiece 40 temporarily placed on the base 10 are all located inside the driving gear 21 .

[0039] In order to temporarily fix the workpiece 40 on the base 10, a plurality of negative pressure holes 11 are opened on the base 10. Specifically, the base 10 has a front side 12 and a back side 13. The back side 13 of the base 10 is provided with a mounting cavity 14. The bottom wall of the mounting cavity 14 passes through the negative pressure hole 11 to the front side 12 of the base 10. A cover plate 15 is provided at the opening of the mounting cavity 14. The cover plate 15 and the base 10 form a cavity at the mounting cavity 14. By connecting to the cavity through a negative pressure machine, negative pressure can be formed in the cavity. The workpiece 40 placed on the front side 12 of the base 10 is covered on the negative pressure hole 11. The negative pressure in the negative pressure hole 11 can adsorb the workpiece 40 so that it fits tightly to the front side 12 of the base 10.

[0040] To summarize, the driving gear 21 and multiple driven gears 22 are respectively rotatably connected to the base 10, and the driving gear 21 is meshed with each driven gear 22. The end of the clamping arm 31 is connected to the driven gear 22. When the driving gear 21 rotates, it can synchronously drive the multiple driven gears 22 to rotate together, and then synchronously drive the multiple clamping arms 31 to swing relative to the base 10. When the ends of the two clamping arms 31 move toward each other, they can clamp the workpiece 40, and when they move away from each other, they can release the workpiece 40. By driving the multiple driven gears 22 and the corresponding clamping arms 31 to move by the driving gear 21, the movement of the multiple clamping arms 31 can be ensured to be synchronized, so as to avoid offset or misalignment between the multiple workpieces 40.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fixture for a display device, characterized in that: It includes a base, a driving mechanism and a plurality of clamping components; The driving mechanism comprises a driving gear and a plurality of driven gears, wherein the driving gear and the driven gears are respectively rotatably connected to the base, and the driving gear and the driven gears are meshed with each other; The clamping assembly comprises two clamping arms arranged opposite to each other, and one end of the clamping arm is connected to the driven gear.

2. The fixture for display device according to claim 1, characterized in that: The rotation plane of the clamping arm is parallel to the base.

3. The fixture for display device according to claim 1, characterized in that: The clamping assembly comprises a clamping member movably connected to the clamping arm, the clamping member is parallel to the base, and the clamping member is slidably connected to the base.

4. The fixture for display device according to claim 1, characterized in that: The plurality of driven gears are evenly arranged around the driving gear.

5. The fixture for display device according to claim 3, characterized in that: The clamping assembly further comprises a connecting block and a connecting groove, wherein the connecting block is slidably embedded in the connecting groove, and one of the connecting block and the connecting groove is arranged on the clamping member, and the other is arranged on the clamping arm.

6. The fixture for display device according to claim 1, characterized in that: The clamping arm comprises a first arm and a second arm which are perpendicular to and connected to each other, the first arm is connected to the driven gear, and the second arm is used for clamping a workpiece.

7. The fixture for display device according to claim 3, characterized in that: The driving gear is annular, and the clamping member is located at the inner side of the driving gear.

8. The fixture for display device according to claim 1, characterized in that: A plurality of negative pressure holes are provided on the base.

9. The fixture for display device according to claim 3, characterized in that: The clamping assembly comprises a guide rail arranged on the base, and the clamping member is slidably connected to the guide rail.

10. The fixture for display device according to claim 1, characterized in that: The driving gear, the driven gear and the clamping arm are all located on the same surface of the base.

Images