Arc-shaped connection device and display screen

Abstract

An arc connection device comprises a first connection member and a second connection member which can move relatively along an arc line, a side portion of the first connection member is provided with a transversely penetrating arc-shaped through groove, the arc-shaped through groove is provided with a plurality of recesses on a side close to the second connection member, a locking mechanism is movably connected to the second connection member, comprising a connection structure which enables the locking mechanism to move laterally relative to the second connection member and has a tendency to move away from the second connection member, an operating portion formed by passing through the arc-shaped through groove, and a locking portion matching the recess; when the locking portion is located in the recess, the first connection member and the second connection member are fixed to each other and cannot move relatively along an arc line; when the locking portion is disengaged from the recess by pressing the operating portion, the first connection member and the second connection member can move relatively along an arc line. A display screen using the arc connection device is also disclosed. The present invention is very convenient to operate and can be fixed reliably.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to an arc-shaped connecting device and a display screen. Background Art

[0002] With the rapid development of entertainment and advertising industries, large-screen displays are widely used, especially in TV stations, evening parties, stages or large outdoor advertising sites. Many large-screen displays are spliced ​​by connecting multiple display units (generally using LED display) using connecting devices.

[0003] Sometimes, in order to improve the display effect, the spliced ​​display screen needs to have a certain curvature. In this case, the connecting device adopts an arc-shaped connecting device so that the angle between each display screen unit can be adjusted. The arc-shaped connecting device generally includes two connecting parts that respectively connect the two display screen units and can move relatively along the arc, and a fixing mechanism that fixes the two connecting parts after adjusting to a certain angle. At present, the fixing mechanism is fixed by the friction between a nut and one of the connecting parts. This fixing method requires rotating the nut, which is cumbersome to operate, especially in a small space. In addition, it relies on friction to fix, and the fixing effect is not good, which may cause the arc-shaped connecting device to fail, causing the angle between the two display screen units to change.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0005] The object of the present invention is to provide an arc-shaped connecting device and a display screen which are easy to operate.

[0006] The present invention provides an arc connection device, comprising a first connection member and a second connection member that can move relatively along an arc, a side portion of the first connection member is provided with a transversely penetrating arc groove, and the arc groove is provided with a plurality of recesses on a side close to the second connection member, a locking mechanism is movably connected to the second connection member, comprising a connection structure that enables the locking mechanism to move laterally relative to the second connection member and has a tendency to move away from the second connection member, an operating portion formed by passing through the arc groove, and a locking portion matching the recess; when the locking portion is located in the recess, the first connection member and the second connection member are fixed to each other and cannot move relatively along the arc; when the locking portion is disengaged from the recess by pressing the operating portion, the first connection member and the second connection member can move relatively along the arc.

[0007] Furthermore, the locking mechanism includes a locking member and an elastic member, and the elastic member is connected to one end of the locking member close to the second connecting member, so that the locking member has a tendency to move away from the second connecting member.

[0008] Furthermore, the second connecting member is provided with a receiving groove with one end open, and the locking member is provided with a connecting portion at one end close to the second connecting member, and the connecting portion is received in the receiving groove, so that the locking member can move laterally relative to the second connecting member.

[0009] Furthermore, a groove with an open end is provided at the end of the connecting portion, and the elastic member is partially accommodated in the groove.

[0010] Furthermore, the locking member includes a rod-shaped main body, and the operating portion is a handle fixed to one end of the main body.

[0011] Furthermore, the first connecting member includes a first fixing portion for connecting a first external element and two side walls connected in parallel to the first fixing portion, the second connecting member includes a second fixing portion for connecting a second external element and an insertion portion connected to the second fixing portion, the insertion portion is located between the two side walls, the two side walls are provided with the arc-shaped through grooves, and the two arc-shaped through grooves are arranged opposite to each other, and there are two locking mechanisms, which are movably connected to the two sides of the second connecting member respectively.

[0012] Furthermore, an outer wall and an inner wall connected to the two side walls are provided between the two side walls, and an arc-shaped groove is formed between the outer wall and the inner wall to accommodate the insertion part.

[0013] Furthermore, the outer wall is provided with a longitudinally penetrating long groove, and the outer surface of the outer wall is provided with a plurality of angle marks along the long groove, the angle marks correspond to the recesses, and the insertion portion is provided with an indicator mark located in the long groove, and the indicator mark cooperates with the angle mark to display the curvature between the first connecting member and the second connecting member.

[0014] The present invention also provides an arc-shaped connecting device, comprising a first connecting member, a second connecting member, and two locking mechanisms that can move relatively along an arc; the first connecting member comprises a first fixing portion for connecting a first external element, two side walls connected in parallel to the first fixing portion, an outer wall and an inner wall located between the two side walls and connected to the two side walls, an arc-shaped groove is formed between the outer wall and the inner wall, the two side walls are provided with a transversely penetrating and corresponding arc-shaped through grooves, and the arc-shaped through grooves are provided with a plurality of recesses on a side close to the second connecting member; the second connecting member comprises a second fixing portion for connecting a second external element, an insertion portion connected to the second fixing portion, the insertion portion is located between the two side walls and between the outer wall and the inner wall, and both sides of the insertion portion are A receiving groove with an opening at one end is provided; each of the locking mechanisms includes a locking piece and an elastic piece, and the locking piece includes a connecting portion provided near one end of the second connecting piece, an operating portion formed by passing through the arc-shaped through groove, and a locking portion matching the recess; the connecting portion and the elastic piece are accommodated in the receiving groove, so that the locking piece can move laterally relative to the second connecting piece, and the elastic piece makes the locking piece tend to move away from the second connecting piece; when the locking portion is located in the recess, the first connecting piece and the second connecting piece are fixed to each other and cannot move relative to each other along an arc, and when the locking portion is disengaged from the recess by relatively pressing the two operating portions, the first connecting piece and the second connecting piece can move relative to each other along an arc.

[0015] The present invention also provides a display screen, comprising a first display screen unit, a second display screen unit, and an arc-shaped connecting device connected to the first display screen unit and the second display screen unit, wherein the arc-shaped connecting device is the arc-shaped connecting device as described above, and the first connecting member and the second connecting member are respectively connected to the first display screen unit and the second display screen unit, so that the angle between the first display screen unit and the second display screen unit can be adjusted through the arc-shaped connecting device.

[0016] The arc-shaped connecting device and display screen provided by the present invention are provided with a plurality of recesses on one side of the arc-shaped through groove of the first connecting member close to the second connecting member, and a locking mechanism is provided with an operating part and a locking part matching the recesses. By pressing or releasing the operating part, the locking part and the recesses are matched, so that the first connecting member and the second connecting member can be movable to adjust the angle or immobilized to fix the angle. Because the angle between the first connecting member and the second connecting member can be adjusted or fixed by pressing or releasing the operating part, the operation is very convenient, and the matching mode of the locking part and the recesses makes the fixation reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an arc-shaped connecting device according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 A three-dimensional schematic diagram of the arc-shaped connecting device shown in another angle.

[0019] Figure 3 for Figure 1 A three-dimensional schematic diagram of the first connecting member in the arc-shaped connecting device shown.

[0020] Figure 4 for Figure 3 A three-dimensional schematic diagram of the first connecting member from another angle is shown.

[0021] Figure 5 for Figure 3 A schematic diagram of the connecting body in the first connecting member is shown.

[0022] Figure 6 for Figure 3 A schematic diagram of the connection cover body in the first connecting member is shown.

[0023] Figure 7 for Figure 1 A three-dimensional schematic diagram of the second connecting member in the arc-shaped connecting device shown.

[0024] Figure 8 for Figure 7 A three-dimensional schematic diagram of the second connecting member from another angle is shown.

[0025] Fig. 9 for Figure 1 A three-dimensional assembly diagram of the locking mechanism in the arc-shaped connecting device shown.

[0026] Fig.10 for Fig. 9 A three-dimensional exploded view of the locking mechanism shown.

[0027] Fig.11 for Figure 1 A cross-sectional view of the arc-shaped connecting device in the fixed state.

[0028] Fig.12 for Figure 1 A cross-sectional view of the arc-shaped connecting device in the active state.

[0029] Fig.13 It is a three-dimensional schematic diagram of a display screen according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] like Figures 1 to 12 As shown, in this embodiment, the arc-shaped connecting device includes a first connecting member 1, a second connecting member 2, and two locking mechanisms 3 that can move relatively along an arc.

[0032] like Figures 3 to 6 As shown, the first connector 1 includes a first fixing portion 11 for connecting a first external component 4 (an LED display unit in this embodiment), two side walls 12 connected in parallel to the first fixing portion 11, and an outer wall 13 and an inner wall 14 located between the two side walls 12 and connected to the two side walls 12. The first connector 1 is fixedly formed by a connecting body 15 and a connecting cover 16 to facilitate the assembly of other components.

[0033] The first fixing portion 11 is provided with a plurality of first positioning columns 111 and a first fixing hole 112 to be fixed with the first external element 4. An arcuate channel is formed between the outer wall 13 and the inner wall 14 to accommodate the second connecting member 2. Both side walls 12 are provided with a transversely penetrating and corresponding arcuate through grooves 121, and the arcuate through grooves 121 are provided with a plurality of recesses 122 on the side (inner side) close to the second connecting member. In this embodiment, the recesses 122 are truncated cone-shaped. A plunger fixing hole 123 is also provided on one side wall 12. The outer wall 13 is provided with a longitudinally penetrating long groove 131, and the outer surface of the outer wall 13 is provided with a plurality of angle marks 132 (such as -15, -10, -5, 0, 5, 10, 15) along the long groove 131, and the angle marks 132 correspond to the recesses 122.

[0034] like Figure 7 , Figure 8 As shown, the second connecting member 2 includes a second fixing portion 21 for connecting the second external element 5 and an inserting portion 22 connected to the second fixing portion 21. The second fixing portion 21 is provided with a plurality of second positioning columns 211 and second fixing holes 212 to be fixed to the second external element 5 (the LED display unit in this embodiment). The inserting portion 22 can be received in the arc-shaped groove between the two side walls 12 and the outer wall 13 and the inner wall 14, so that the second connecting member 2 can move along the arc relative to the first connecting member 1. Both sides of the inserting portion 22 are provided with a receiving groove 221 with one end open. The inserting portion 22 is provided with an indicator mark 223 (an indicator hole in this embodiment) located in the long groove 131, and the indicator mark 223 cooperates with the angle mark 132 to display the arc between the first connecting member 1 and the second connecting member 2. One side of the insertion portion 22 is provided with a plurality of hemispherical recessed portions 222 corresponding to the recessed portions 122, which cooperate with the plunger fixing hole 123, and can install a metal positioning ball, a spring, and a plunger (not shown) from the inside out in the plunger fixing hole 123. The positioning ball can be partially accommodated in the recessed portion 222, so that when adjusted into place, the positioning ball is just accommodated in the recessed portion 222, producing a click sound, which facilitates the judgment that the adjustment is in place.

[0035] like Fig. 9 , Fig.10As shown, each of the latching mechanisms 3 includes a latching member 31 and an elastic member 32. In this embodiment, the elastic member 32 is a spring, but it can also be other elastic elements. The latching member 31 includes a connecting portion 311 disposed near one end of the second connecting member 2, an operating portion 312 formed by passing through the arc-shaped through groove 121, and a latching portion 313 matching the recess 122. The connecting portion 311 and the elastic member 32 are accommodated in the accommodating groove 221, so that the latching member 31 can move laterally relative to the second connecting member 2, and the elastic member 32 makes the latching member 31 have a tendency to move away from the second connecting member 2. In other embodiments, other structures can be used to make the latching mechanism 3 move laterally relative to the second connecting member 2 and have a tendency to move away from the second connecting member 2. For example, the latching mechanism can be directly installed and fixed on the side wall of the second connecting member, and gravity can be used to make the latching member have a tendency to move away from the second connecting member.

[0036] In this embodiment, the locking member 31 includes a rod body 314 and a handle 315 detachably mounted on the outer end of the rod body 314. The rod body 314 includes a cylindrical head 3141 with a larger diameter and a cylindrical neck 3142 with a smaller diameter. The head 3141 forms a connecting portion 311. A groove 3143 with an open end is provided at the end of the head 3141. The elastic member 32 is partially accommodated in the groove 3143 to facilitate the installation and use of the elastic member 32. The handle 315 is detachably mounted on the end of the rod neck 3142 to facilitate the installation of the locking member 31. A truncated cone-shaped structure is provided between the head 3141 and the neck 3142 to form the locking portion 313.

[0037] like Fig.11 , Fig.12 As shown, after assembly, when the angle between the first connector 1 and the second connector 2 needs to be adjusted, the two operating parts 312 are pressed relative to each other so that the locking part 313 overcomes the elastic force of the elastic part 32 and escapes from the recess 122. At this time, the first connector 1 and the second connector 2 can move relative to each other along an arc, and the first connector 1 and the second connector 2 can be adjusted to the required angle by operating. After adjustment, the two operating parts 312 are released. At this time, the locking part 313 will be pushed into the recess 122 by the elastic part 32, and the first connector 1 and the second connector 2 are fixed by the locking part 313 and the recess 122, and the two cannot move relative to each other along an arc. In other embodiments, only one locking mechanism can be provided, and the angle between the first connector 1 and the second connector can be adjusted or fixed by pressing or releasing the operating part of the locking mechanism.

[0038] Since the angle between the first connecting member and the second connecting member can be adjusted or fixed simply by pressing or releasing the operating portion, the operation is very convenient, and the matching mode of the locking portion and the recess enables reliable fixation.

[0039] like Fig.13As shown, the present invention also provides a display screen, including a first display screen unit 4, a second display screen unit 5, and an arc-shaped connecting device connected to the first display screen unit 4 and the second display screen unit 5, wherein the arc-shaped connecting device is the arc-shaped connecting device described above. The first connecting member 1 and the second connecting member 2 are respectively connected to the first display screen unit 4 and the second display screen unit 5, so that the angle between the first display screen unit 4 and the second display screen unit 5 can be adjusted through the arc-shaped connecting device. In this embodiment, the arc-shaped connecting device is fixedly mounted on the first display screen unit 4, and the second display screen unit 5 is connected to the second connecting member 2 through a movable connecting member 6. And the connection direction between the first display screen unit 4 and the first connecting member 1 is perpendicular to the connection direction between the second display screen unit 5 and the second connecting member 2 (for example, one horizontal direction and one vertical direction), so that the angle between the first fixing portion 11 and the second fixing portion 21 is small (for example, the angle in this embodiment is 90±15 degrees, while the angle in the existing solution is 180±15 degrees), thereby occupying a small space.

[0040] In this document, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", and "horizontal" are based on the directions or positional relationships shown in the accompanying drawings and are only for the clarity of expressing the technical solutions and the convenience of description, and therefore should not be understood as limitations of the present invention.

[0041] In this document, the terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.

[0042] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An arc connection device, characterized in that: The invention comprises a first connecting member and a second connecting member which can move relatively along an arc, wherein the first connecting member is fixed by a connecting body and a connecting cover body, a side portion of the first connecting member is provided with a transversely penetrating arc-shaped through groove, and the arc-shaped through groove is provided with a plurality of recesses on a side close to the second connecting member, and a locking mechanism is movably connected to the second connecting member, comprising a connecting structure which enables the locking mechanism to move laterally relative to the second connecting member and has a tendency to move away from the second connecting member, an operating portion formed by passing through the arc-shaped through groove, and a locking portion matching the recess; when the locking portion is located in the recess, the first connecting member and the second connecting member are fixed to each other and cannot move relatively along an arc; when the locking portion is disengaged from the recess by pressing the operating portion, the first connecting member and the second connecting member can move relatively along an arc.

2. The arc connection device according to claim 1, characterized in that: The locking mechanism includes a locking member and an elastic member. The elastic member is connected to one end of the locking member close to the second connecting member, so that the locking member has a tendency to move away from the second connecting member.

3. The arc connection device according to claim 2, characterized in that: The second connecting member is provided with a receiving groove with one end open, and the locking member is provided with a connecting portion at one end close to the second connecting member, and the connecting portion is received in the receiving groove, so that the locking member can move laterally relative to the second connecting member.

4. The arc connection device according to claim 3, characterized in that: A groove with an open end is provided at the end of the connecting portion, and the elastic member is partially accommodated in the groove.

5. The arc connection device according to claim 2, characterized in that: The locking member comprises a rod-shaped main body, and the operating portion is a handle fixed to one end of the main body.

6. The arc connection device according to claim 1, characterized in that: The first connecting member includes a first fixing portion for connecting a first external element and two side walls connected in parallel to the first fixing portion. The second connecting member includes a second fixing portion for connecting a second external element and an insertion portion connected to the second fixing portion. The insertion portion is located between the two side walls. Both side walls are provided with the arc-shaped through grooves, and the two arc-shaped through grooves are arranged opposite to each other. There are two locking mechanisms, which are movably connected to the two sides of the second connecting member respectively.

7. The arc connection device according to claim 6, characterized in that: An outer wall and an inner wall connected to the two side walls are provided between the two side walls, and an arc-shaped groove is formed between the outer wall and the inner wall to accommodate the insertion part.

8. The arc connection device according to claim 7, characterized in that: The outer wall is provided with a longitudinally extending long groove, and the outer surface of the outer wall is provided with a plurality of angle marks along the long groove, the angle marks corresponding to the recesses, and the insertion portion is provided with an indicator mark located in the long groove, and the indicator mark cooperates with the angle mark to display the curvature between the first connecting member and the second connecting member.

9. An arc-shaped connection device, characterized in that: The first connecting member comprises a first connecting member, a second connecting member, and two locking mechanisms that can move relatively along an arc; the first connecting member is fixed by a connecting body and a connecting cover body, the first connecting member comprises a first fixing portion for connecting a first external element, two side walls connected in parallel to the first fixing portion, an outer wall and an inner wall located between the two side walls and connected to the two side walls, an arc groove is formed between the outer wall and the inner wall, and both side walls are provided with a transversely penetrating and corresponding arc through grooves, and the arc through groove is provided with a plurality of recesses on a side close to the second connecting member; the second connecting member comprises a second fixing portion for connecting a second external element, an insertion portion connected to the second fixing portion, the insertion portion is located between the two side walls and between the outer wall and the inner wall, and the insertion portion Both sides of the entry part are provided with a receiving groove with one end open; each of the locking mechanisms includes a locking piece and an elastic piece, and the locking piece includes a connecting part arranged near one end of the second connecting piece, an operating part formed by passing through the arc-shaped through groove, and a locking part matching the recess; the connecting part and the elastic piece are accommodated in the receiving groove, so that the locking piece can move laterally relative to the second connecting piece, and the elastic piece makes the locking piece have a tendency to move away from the second connecting piece; when the locking part is located in the recess, the first connecting piece and the second connecting piece are fixed to each other and cannot move relative to each other along an arc, and when the locking part is disengaged from the recess by relatively pressing the two operating parts, the first connecting piece and the second connecting piece can move relative to each other along an arc.

10. A display screen, characterized in that: It includes a first display screen unit, a second display screen unit and an arc-shaped connecting device connected to the first display screen unit and the second display screen unit, wherein the arc-shaped connecting device is the arc-shaped connecting device as described in any one of claims 1 to 9, and the first connecting member and the second connecting member are respectively connected to the first display screen unit and the second display screen unit, so that the angle between the first display screen unit and the second display screen unit can be adjusted through the arc-shaped connecting device.

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