Display screen support and display device

Abstract

The utility model discloses a display screen support and display equipment, and belongs to the technical field of display, the display screen support comprises a mounting rod, a clamping device and a limiting assembly, the clamping device is arranged around the mounting rod, the clamping device abuts against the mounting rod to clamp the mounting rod, and the clamping device clamps the mounting rod to prevent the mounting rod and the clamping device from relatively rotating around the mounting rod; a limiting groove and a limiting protruding block of the limiting assembly are embedded, the limiting groove and the limiting protruding block can further prevent the clamping device from sliding relative to the mounting rod in the extending direction of the mounting rod, and even if external force larger than the friction force acts on the clamping device and / or the mounting rod, the clamping device and / or the mounting rod can be clamped. And the limiting assembly can still keep the clamping device and the mounting rod relatively fixed.

Description

Technical Field

[0001] The utility model relates to the field of display technology, in particular to a display screen bracket and a display device. Background Art

[0002] To connect multiple display units into a larger display screen, they typically require a back frame. The back frame consists of several vertical and horizontal bars, connected by screws or clamps. Screw connections are cumbersome and unsuitable for the rapid deployment or disassembly of rental display screens. While clamps enable quick installation and disassembly, they rely on friction to connect to the vertical bars. When the overall weight of the back frame or the weight of the display units mounted on it is high, the clamps and vertical bars may slip unexpectedly, causing the back frame to deform or collapse, potentially resulting in property damage or personal injury. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a display screen bracket and a display device to solve the problem that the current back frame mounting structure cannot take into account both quick disassembly and assembly and connection stability.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A display screen bracket comprises a mounting rod, a clamping device and a limiting assembly;

[0006] The clamping device is arranged around the mounting rod, and the inner side of the clamping device abuts against the outer wall surface of the mounting rod;

[0007] The limiting assembly includes a limiting groove and a limiting protrusion, one of the limiting groove and the limiting protrusion is provided on the mounting rod, and the other is provided on the clamping device;

[0008] The limiting protrusion is embedded in the limiting groove to prevent the clamping device from sliding relative to the mounting rod along the extending direction of the mounting rod.

[0009] Preferably, a connecting seat is provided on the clamping device, and the limiting protrusion is rotatably connected to the connecting seat.

[0010] Preferably, it further comprises a rotating shaft, the rotating shaft being rotatably connected to the connecting seat, and the rotating shaft being provided with an avoidance structure and the limiting protrusion along its circumference;

[0011] When the rotating shaft rotates so that the avoidance structure is arranged opposite to the limiting groove, the limiting protrusion is separated from the limiting groove.

[0012] Preferably, a step structure is provided between the limiting protrusion and the avoidance structure;

[0013] The connecting seat is provided with a rotation limiting block, and the rotation trajectory of the step structure intersects the rotation limiting block.

[0014] Preferably, the rotating shaft has a head end and a tail end;

[0015] The clamping device is C-shaped, one end of the clamping device is engaged with the head end of the rotating shaft, and the other end of the clamping device is provided with the connecting seat, the connecting seat is provided with a connecting hole, and the rotating shaft is slidably and rotatably inserted into the connecting hole;

[0016] The tail end of the rotating shaft is rotatably connected to an eccentric wheel, and the circumferential surface of the eccentric wheel is slidably abutted against the end surface of the connecting seat.

[0017] Preferably, it further comprises a pressing block located between the connecting seat and the eccentric wheel, and two ends of the pressing block are respectively in contact with the connecting seat and the eccentric wheel.

[0018] Preferably, a slip-limiting component is detachably provided on the outer wall surface of the mounting rod, and a notch is provided on the end surface of the clamping device, and the slip-limiting component can abut against the notch.

[0019] Preferably, it further comprises a first connecting rod and a second connecting rod connected to each other, wherein the first connecting rod and the second connecting rod are arranged obliquely or perpendicularly to each other;

[0020] The mounting rod is a hollow structure, and is provided with a first mounting hole and a second mounting hole;

[0021] The first connecting rod is inserted into the first mounting hole, and the second connecting rod is inserted into the second mounting hole.

[0022] The limiting groove is provided at the end portion of the first connecting rod.

[0023] Preferably, the limiting groove is provided on the outer wall surface of the mounting rod.

[0024] In order to achieve the same technical effect, the present invention also provides a display device, including the display screen bracket as described above.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] The clamping device is arranged around the mounting rod, and the clamping device abuts against the mounting rod to clamp the mounting rod. The clamping device clamps the mounting rod to prevent the two from rotating relative to each other around the mounting rod, and can prevent the two from sliding relative to each other through friction. The limiting groove and the limiting protrusion of the limiting assembly are engaged with each other, and the limiting groove and the limiting protrusion can further prevent the clamping device from sliding relative to the mounting rod along the extension direction of the mounting rod. Even if an external force greater than the above-mentioned friction force acts on the clamping device and / or the mounting rod, the limiting assembly can still keep the clamping device and the mounting rod relatively fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is one of the overall structural diagrams of the display screen bracket of the utility model;

[0028] Figure 2 This is the second schematic diagram of the overall structure of the display screen bracket of the utility model;

[0029] Figure 3 This is a schematic structural diagram of a clamping device for a display screen bracket of the utility model;

[0030] Figure 4 This is an exploded schematic diagram of the clamping device of the display screen bracket of the utility model;

[0031] Figure 5 This is a schematic structural diagram of a position limiting assembly of a display screen bracket of the utility model;

[0032] Figure 6 It is a three-dimensional cross-sectional schematic diagram of the limiting component of the display screen bracket of the utility model;

[0033] Figure 7 This is a schematic structural diagram of the first connecting rod and the second connecting rod of the position limiting assembly of the display screen bracket of the utility model;

[0034] Figure 8 for Figure 6 A magnified schematic diagram of point A in the middle;

[0035] Figure 9 This is a schematic structural diagram of the mounting rod of the display screen bracket of the utility model;

[0036] In the figure: 10, mounting rod; 11, first connecting hole; 12, second connecting hole; 13, sliding limit component; 20, clamping device; 20a, through hole; 20b, notch; 21, connecting seat; 211, rotation limit block; 212, connecting hole; 22, rotating shaft; 22a, head end; 22b, tail end; 221, limiting protrusion; 222, avoidance structure; 223, step structure; 224, nut; 225, eccentric wheel; 226, handle; 30, pressure block; 40, first connecting rod; 41, limiting groove; 50, second connecting rod; 60, cross bar. DETAILED DESCRIPTION

[0037] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate 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. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] Example 1

[0041] Combine Figures 1 to 9 As shown, the display screen bracket of the present invention is schematically shown, including a mounting rod 10, a clamping device 20 and a limit assembly. The mounting rod 10 has a cylindrical structure, that is, the mounting rod 10 is a hollow structure, and the clamping device 20 is roughly a closed ring or an open C-shape, so the clamping device 20 can be arranged around the mounting rod 10.

[0042] like Figure 1 and Figure 2 The inner side of the clamping device 20 abuts against the outer wall of the mounting rod 10. When the two are tightly abutted, friction can be used to prevent the two from sliding or rotating relative to each other, thereby achieving a basic connection. The limiting assembly includes a limiting groove 41 and a limiting protrusion 221. The limiting protrusion 221 can be embedded in the limiting groove 41. One of the limiting groove 41 and the limiting protrusion 221 is provided on the mounting rod 10, and the other is provided on the clamping device 20. Figure 5 and Figure 7The limiting protrusion 221 is embedded in the limiting groove 41 to prevent the clamping device 20 from sliding relative to the mounting rod 10 along the extension direction of the mounting rod 10. The setting of the limiting protrusion 221 and the limiting groove 41 does not prevent the clamping device 20 and the mounting rod 10 from sliding relative to each other by friction, but prevents the clamping device 20 and the mounting rod 10 from sliding relative to each other by the structural engagement between the limiting protrusion 221 and the limiting groove 41.

[0043] Therefore, when the external force applied to the clamping device 20 and / or the mounting rod 10 is large (the external force is greater than the maximum friction force between the clamping device 20 and the mounting rod 10), the limiting protrusion 221 and the limiting groove 41 can still prevent the clamping device 20 and the mounting rod 10 from sliding relative to each other, thereby improving the load-bearing performance of the clamping device 20 and the mounting rod 10, and the display screen bracket can mount more heavier display units and their supporting equipment.

[0044] In this embodiment, the opening direction of the limiting groove 41 is inclined or perpendicular to the extension direction of the mounting rod 10, so that when the limiting protrusion 221 is embedded in the limiting groove 41, the limiting protrusion 221 and the limiting groove 41 can prevent the clamping device 20 and the mounting rod 10 from sliding relative to each other.

[0045] Specifically, if Figure 3 and Figure 4 A connecting seat 21 is provided on the clamping device 20, and a limiting protrusion 221 is rotatably connected to the connecting seat 21. The limiting protrusion 221 can enter or exit the limiting groove 41 by rotating relative to the connecting seat 21, thereby realizing locking or unlocking of the clamping device 20 and the mounting rod 10 by the limiting component. For example, the limiting protrusion 221 rotates relative to the connecting seat 21 and enters the limiting groove 41, and the outer wall surface of the limiting protrusion 221 abuts against the inner wall surface of the limiting groove 41, and the two cooperate to prevent the clamping device 20 and the mounting rod 10 from sliding relative to each other; on the contrary, the limiting protrusion 221 rotates relative to the connecting seat 21 and exits the limiting groove 41. At this time, the movement trajectory of the limiting protrusion 221 in the extension direction of the mounting rod 10 is parallel to the limiting groove 41 (that is, the movement trajectory of the limiting protrusion 221 in the extension direction of the mounting rod 10 does not intersect with the limiting groove 41). At this time, the limiting component releases the clamping device 20 and the mounting rod 10. After the clamping device 20 releases the mounting rod 10 (after the inner wall surface of the clamping device 20 moves away from the outer wall surface of the mounting rod 10), the clamping device 20 and the mounting rod 10 can slide freely relative to each other.

[0046] In order to take into account the stable locking function of the limit assembly and the smooth switching of locking and unlocking, the outer wall surface of the limit protrusion 221 is an arc surface, and the inner wall surface of the limit groove 41 is also an arc surface, which can be combined with the outer wall surface of the limit protrusion 221 to form a circular arc surface. Figure 6 and Figure 8As shown, the arc surface of the limiting protrusion 221 and the arc surface of the limiting groove 41 are concentrically arranged. When the limiting protrusion 221 rotates relative to the connecting seat 21, there will be no structural interference between the limiting protrusion 221 and the limiting groove 41. When the limiting protrusion 221 is located in the limiting groove 41, the arc surfaces of the two abut against each other to prevent the clamping device 20 and the mounting rod 10 from sliding relative to each other.

[0047] In order to realize the rotation function between the above-mentioned connecting seat 21 and the limiting protrusion 221, the display screen bracket further includes a rotating shaft 22, which is rotatably connected to the connecting seat 21. The rotating shaft 22 is provided with an avoidance structure 222 and a limiting protrusion 221 along its circumference. Specifically, Figure 4 and Figure 5 One half of the rotating shaft 22 is provided with a limiting protrusion 221, and the other half is provided with an avoidance structure 222. The height of the avoidance structure 222 in the radial direction of the rotating shaft 22 is less than the height of the limiting protrusion 221 in the radial direction of the rotating shaft 22. When the rotating shaft 22 rotates so that the avoidance structure 222 is disposed opposite the limiting groove 41, the limiting protrusion 221 disengages from the limiting groove 41, and the movement trajectory of the avoidance structure 222 in the extension direction of the mounting rod 10 is parallel to the limiting groove 41 (i.e., the movement trajectory of the avoidance structure 222 in the extension direction of the mounting rod 10 does not intersect with the limiting groove 41). In this state, the limiting assembly releases the sliding lock on the mounting rod 10 and the clamping device 20. Conversely, when the limiting protrusion 221 is embedded in the limiting groove 41, the avoidance structure 222 is disposed opposite the limiting groove 41.

[0048] Further, if Figure 5 A step structure 223 is provided between the limiting protrusion 221 and the avoidance structure 222. In this embodiment, the step structure 223 is located at the end of the limiting protrusion 221 in the circumferential direction of the rotating shaft 22. The connecting seat 21 is provided with a limiting block 211. The rotation trajectory of the step structure 223 intersects with the limiting block 211. The setting of the limiting block 211 can limit the rotation angle of the rotating shaft 22. The limiting protrusion 221 is provided with a step structure 223 at both ends of the circumferential direction of the rotating shaft 22. When the rotating shaft 22 rotates, any step structure 223 can be abutted against the limiting block 211 to limit the rotation angle of the rotating shaft 22. Based on the above structure, the rotation angle of the rotating shaft 22 is limited to 170~190°. More specifically, the rotation limit block 211 is movably connected to the connecting seat 21 through a thread, and the extension direction of the rotation limit block 211 is perpendicular to the arrangement direction of the rotating shaft 22. This structure can realize more convenient assembly of the rotation limit block 211, as well as maintenance and replacement of the rotation limit block 211 during future use.

[0049] Combine Figure 4 、 Figure 7 and Figure 8In order to adjust the clamping force of the C-shaped clamping device 20, the rotating shaft 22 has a head end 22a and a tail end 22b. The head end 22a of the rotating shaft 22 is provided with an external thread, and a nut 224 with an internal thread is matched with the external thread connected to the head end 22a of the rotating shaft 22. One end of the clamping device 20 is provided with a through hole 20a, and the head end 22a of the rotating shaft 22 is passed through the through hole 20a. The nut 224 is clamped on the end of the clamping device 20 provided with the through hole 20a; the other end of the clamping device 20 is provided with the above-mentioned connecting seat 21, and the connecting seat 21 is provided with a connecting hole 212. The rotating shaft 22 is slidably and rotatably passed through the connecting hole 212. At the same time, the tail end 22b of the rotating shaft 22 is rotatably connected to the biased The center wheel 225, the circumference of the eccentric wheel 225 is slidably in contact with the end face of the connecting seat 21. When the eccentric wheel 225 is rotated, the extrusion pressure of the circumference of the eccentric wheel 225 on the end face of the connecting seat 21 increases from small to large or from large to small. When the extrusion pressure of the circumference of the eccentric wheel 225 on the end face of the connecting seat 21 increases from small to large, the circumference of the eccentric wheel 225 pushes the connecting seat 21, so that the two ends of the clamping device 20 move toward each other, and the clamping device 20 gradually clamps (to achieve the embrace of the installation rod 10); on the contrary, when the extrusion pressure of the circumference of the eccentric wheel 225 on the end face of the connecting seat 21 decreases from large to small, the clamping device 20 recovers its deformation, and the clamping device 20 gradually relaxes (to achieve the release of the installation rod 10).

[0050] Based on the above structure, the rotating shaft 22 can still be rotated to move the rotating shaft 22 relative to the connecting seat 21 and switch the unlocking state and locking state of the limit assembly. The rotation axis of the eccentric wheel 225 is perpendicular to the rotating shaft 22. The eccentric wheel 225 can be provided with a handle 226. Pulling the handle 226 can drive the eccentric wheel 225 to rotate relative to the rotating shaft 22. Pulling the handle 226 can also drive the rotating shaft 22 to rotate relative to the connecting seat 21. By operating a single handle 226, the clamping force of the clamping device 20 can be adjusted and the unlocking state and locking state of the limit assembly can be driven.

[0051] like Figure 4 A pressure block 30 is also provided between the connecting seat 21 and the eccentric wheel 225. The pressure block 30 is in a circular shape and can be made of plastic, rubber or metal. The two ends of the pressure block 30 are respectively in contact with the connecting seat 21 and the eccentric wheel 225, which can provide a buffer between the connecting seat 21 and the eccentric wheel 225 and increase the friction between the connecting seat 21 and the eccentric wheel 225.

[0052] Example 2

[0053] Combine Figures 1 to 3 As shown, the difference between this embodiment and embodiment 1 is that the outer wall surface of the mounting rod 10 is detachably provided with a slip limiting component 13, and the end surface of the clamping device 20 is provided with a notch 20b, and the slip limiting component 13 can abut against the notch 20b.

[0054] When the limiting assembly is in the locked state, the limiting protrusion 221 and the limiting groove 41 are engaged to prevent the clamping device 20 and the mounting rod 10 from sliding relative to each other. Figure 2 The sliding limiting component 13 is located in the notch 20b of the clamping device 20, which can further prevent the clamping device 20 and the mounting rod 10. The sliding limiting component 13 and the notch 20b of the clamping device 20 provide more sliding redundancy to protect important assets installed on the display screen bracket.

[0055] Example 3

[0056] like Figures 5 to 8 As shown, the difference between this embodiment and embodiment 1 is that the display screen bracket further includes a first connecting rod 40 and a second connecting rod 50 connected to each other. Figure 5 The first connecting rod 40 and the second connecting rod 50 are arranged at an angle or perpendicular to each other. In this embodiment, the first connecting rod 40 is preferably perpendicular to the second connecting rod 50. The mounting rod 10 is provided with a first mounting hole and a second mounting hole. The first connecting rod 40 is inserted into the first mounting hole, and the second connecting rod 50 is inserted into the second mounting hole. This structure can make the connection between the assembly structure composed of the first connecting rod 40 and the second connecting rod 50 and the mounting rod 10 more stable.

[0057] like Figure 5 and Figure 7 The limiting groove 41 is provided at the end of the first connecting rod 40. Of course, the limiting groove 41 is exposed to the first mounting hole. This structure realizes a detachable design of the limiting groove 41 and the mounting rod 10. When the limiting groove 41 is damaged or needs to be removed for maintenance, the first connecting rod 40 and the second connecting rod 50 can be removed from the mounting rod 10, thereby improving the maintainability of the limiting groove 41. It is understood that in an embodiment where the first connecting rod 40 and the second connecting rod 50 are not provided, the limiting groove 41 can be directly provided on the outer wall surface of the mounting rod 10. This structure can reduce the number of structural components (such as the first connecting rod 40 and the second connecting rod 50) and reduce material costs.

[0058] Example 4

[0059] like Figure 1 and Figure 6 The display screen bracket of this embodiment also includes a cross bar 60, the end of the cross bar 60 is connected to the clamping device 20, the cross bar 60 is arranged horizontally, and the mounting rod 10 is arranged vertically. The cross bar 60 and the mounting rod 10 are connected by the clamping device 20 to build a larger-scale display screen bracket.

[0060] Example 5

[0061] This embodiment provides a display device, including a plurality of display units and the display screen bracket as described above, wherein the housings of the display units are detachably mounted to the crossbar 60 or the mounting bar 10 .

[0062] To sum up, the clamping device 20 is arranged around the mounting rod 10, and the clamping device 20 abuts against the mounting rod 10 to clamp the mounting rod 10. The clamping device 20 clamps the mounting rod 10 to prevent the two from rotating relative to each other around the mounting rod 10, and can prevent the two from sliding relative to each other through friction. The limiting groove 41 and the limiting protrusion 221 of the limiting assembly are engaged with each other, and the limiting groove 41 and the limiting protrusion 221 can further prevent the clamping device 20 from sliding relative to the mounting rod 10 along the extension direction of the mounting rod 10. Even if an external force greater than the above-mentioned friction force acts on the clamping device 20 and / or the mounting rod 10, the limiting assembly can still keep the clamping device 20 and the mounting rod 10 relatively fixed.

[0063] The above description is merely 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 description 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 display screen bracket, characterized in that: It includes a mounting rod, a clamping device and a limit assembly; The clamping device is arranged around the mounting rod, and the inner side of the clamping device abuts against the outer wall surface of the mounting rod; The limiting assembly includes a limiting groove and a limiting protrusion, one of the limiting groove and the limiting protrusion is provided on the mounting rod, and the other is provided on the clamping device; The limiting protrusion is embedded in the limiting groove to prevent the clamping device from sliding relative to the mounting rod along the extending direction of the mounting rod.

2. The display screen bracket according to claim 1, wherein: The clamping device is provided with a connecting seat, and the limiting protrusion is rotatably connected to the connecting seat.

3. The display screen bracket according to claim 2, characterized in that: It also includes a rotating shaft, the rotating shaft is rotatably connected to the connecting seat, and the rotating shaft is provided with an avoidance structure and the limiting protrusion along its circumference; When the rotating shaft rotates so that the avoidance structure is arranged opposite to the limiting groove, the limiting protrusion is separated from the limiting groove.

4. The display screen bracket according to claim 3, characterized in that: A step structure is provided between the limiting protrusion and the avoidance structure; The connecting seat is provided with a rotation-limiting block, and the rotation trajectory of the step structure intersects the rotation-limiting block.

5. The display screen bracket according to claim 3, characterized in that: The rotating shaft has a head end and a tail end; The clamping device is C-shaped, one end of the clamping device is engaged with the head end of the rotating shaft, and the other end of the clamping device is provided with the connecting seat, the connecting seat is provided with a connecting hole, and the rotating shaft is slidably and rotatably inserted into the connecting hole; The tail end of the rotating shaft is rotatably connected to an eccentric wheel, and the circumferential surface of the eccentric wheel is slidably abutted against the end surface of the connecting seat.

6. The display screen bracket according to claim 5, characterized in that: It also includes a pressing block located between the connecting seat and the eccentric wheel, and two ends of the pressing block are respectively in contact with the connecting seat and the eccentric wheel.

7. The display screen bracket according to any one of claims 1 to 6, characterized in that: The outer wall surface of the mounting rod is detachably provided with a slip-limiting component, and the end surface of the clamping device is provided with a notch, and the slip-limiting component can abut against the notch.

8. The display screen bracket according to any one of claims 1 to 6, characterized in that: The invention also includes a first connecting rod and a second connecting rod connected to each other, wherein the first connecting rod and the second connecting rod are arranged obliquely or perpendicularly to each other; The mounting rod is a hollow structure, and is provided with a first mounting hole and a second mounting hole; The first connecting rod is inserted into the first mounting hole, and the second connecting rod is inserted into the second mounting hole; The limiting groove is provided at the end portion of the first connecting rod.

9. The display screen bracket according to any one of claims 1 to 6, characterized in that: The limiting groove is formed on the outer wall surface of the mounting rod.

10. A display device, characterized in that: The device comprises a display screen bracket according to any one of claims 1 to 9.

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