A fixed connection structure between LED display box and back frame

Abstract

The present invention discloses a fixed connection structure between an LED display screen box and a back frame, comprising: a base, a transmission member, a handle, and a locking mechanism. The base is arranged on the back frame, the transmission member comprises a rotating shaft and a sleeve, the rotating shaft is passed through the sleeve, the sleeve is mounted on the base, a snapper is arranged on the rotating shaft, the snapper cooperates with the base to form a snapping part, the handle is connected to the rotating shaft, and it can drive the rotating shaft to rotate around the sleeve, the locking mechanism is used to realize the rotation locking between the rotating shaft and the sleeve in a natural state, and realize the rotation unlocking between the rotating shaft and the sleeve under the action of an external force. The base in the present invention is installed on the back frame of the LED display screen, and when the handle drives the snapper to rotate to a locking position through the rotating shaft, the LED display screen box is clamped, and a locking mechanism is provided at the same time to prevent misoperation and the snapper from rotating loose.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical connection, and in particular to a fixed connection structure between an LED display box and a back frame. Background Art

[0002] At present, large-scale LED display screens are basically made up of modular LED display screen cabinets. This structure makes the handling and disassembly of LED display screens very convenient. At the same time, the wires and accessories in the LED display screen cabinet are not exposed, making the cabinet look very neat and generous. Some manufacturers even integrate display, drive and wireless reception, which greatly simplifies the internal structure of the LED display cabinet and improves its stability. In actual use, a tight connection device is installed between the LED display cabinets, and the LED display cabinet is fixed by a back frame to prevent the LED display from moving. However, most of the LED display cabinets are currently fixed to the back frame by screws and iron sheets. This fixing method has the disadvantages of cumbersome operation, time-consuming and labor-intensive, and poor installation accuracy. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a fixed connection structure between an LED display box and a back frame, which can ensure a tight connection between the LED display box and the back frame and make the disassembly and assembly of the LED display box simple and convenient.

[0004] According to an embodiment of the present invention, a fixed connection structure between an LED display screen box and a back frame includes: a base, a transmission member, a handle, and a locking mechanism. The base is arranged on the back frame, the transmission member includes a rotating shaft and a sleeve, the rotating shaft is passed through the sleeve, and the sleeve is installed on the base. A snap is provided on the rotating shaft, and the snap cooperates with the base to form a snapping portion. The handle is connected to the rotating shaft and can drive the rotating shaft to rotate around the sleeve. The locking mechanism is used to achieve rotation locking between the rotating shaft and the sleeve in a natural state, and to achieve rotation unlocking between the rotating shaft and the sleeve under the action of an external force.

[0005] The fixed connection structure between the LED display box and the back frame according to the above embodiment of the present invention has at least the following beneficial effects: the base is installed on the LED display back frame, and when the handle drives the latch to rotate to the locking position through the rotating shaft, the LED display box is clamped; at the same time, a locking mechanism is provided to prevent misoperation and loose rotation of the latch.

[0006] According to some embodiments of the present invention, the base includes a fixing seat and a mounting seat which are perpendicular to each other and detachably connected, the fixing seat is detachably connected to the back frame, the mounting seat is provided with a through hole, and the sleeve is sleeved in the through hole.

[0007] According to some embodiments of the present invention, the mounting seat is further provided with a limiter for preventing the sleeve from sliding.

[0008] According to some embodiments of the present invention, the limiter is a screw, the mounting seat is provided with a threaded hole, the sleeve is provided with a limiting groove, the screw passes through the threaded hole and vertically abuts against the bottom of the limiting groove.

[0009] According to some embodiments of the present invention, the clamp is an elliptical clamping plate detachably connected to the rotating shaft.

[0010] According to some embodiments of the present invention, an elastic buffer element is further provided between the elliptical clamping plate and the rotating shaft.

[0011] According to some embodiments of the present invention, the locking mechanism includes a gear ring sleeved on the sleeve, a trip rod rotatably arranged on the handle, and an elastic reset member transmission-connected to the trip rod, the trip rod is separated from the gear ring under the pressure of an external force, and after the external force is removed, the trip rod meshes with the gear ring under the elastic force of the elastic reset member.

[0012] According to some embodiments of the present invention, two opposing protrusions are provided on the outer ring surface of the gear ring, a limiting protrusion is provided inside the handle, a V-shaped tooth is provided on the ring surface on one side of the line connecting the two protrusion positions, and the limiting protrusion moves along the ring surface on the other side of the line connecting the two protrusion positions.

[0013] According to some embodiments of the present invention, a cutout portion is provided on a side surface of the handle, and the tripping rod includes a transmission portion and an operating portion, and the transmission portion partially extends out of the cutout portion.

[0014] According to some embodiments of the present invention, the elastic return member is a torsion spring, a fixed shaft is provided in the handle, the torsion spring and the trip rod are sequentially sleeved on the fixed shaft, the lead end on one side of the torsion spring is connected to the handle, and the lead end on the other side of the torsion spring is connected to the trip rod.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 An exploded view of an embodiment of the present invention;

[0018] Figure 2 It is an assembly view of an embodiment of the present invention;

[0019] Figure 3 for Figure 1 Left view of

[0020] Figure 4 Schematic diagram of the structure of a handle according to an embodiment of the present invention.

[0021] Reference numerals:

[0022] Base 100, fixing seat 101, mounting seat 102, through hole 103;

[0023] Threaded hole 1022;

[0024] Transmission member 200, rotating shaft 201, shaft sleeve 202, engaging device 203, limiting groove 2021;

[0025] The engaging portion 300, the handle 400, the cutout portion 401, the limiting protrusion 402, and the fixed shaft 403;

[0026] Locking mechanism 500, gear ring 501, tripping rod 502, elastic reset member 503;

[0027] Bump 5011, transmission part 5021, operating part 5022;

[0028] Elastic buffer element 600 . DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] refer to Figures 1 to 4 , is a fixed connection structure of an LED display box and a back frame according to an embodiment of the present invention, comprising:

[0033] The base 100 is arranged on the back frame of the LED display screen.

[0034] The transmission member 200 includes a rotating shaft 201 and a sleeve 202 . The rotating shaft 201 is passed through the sleeve 202 . The sleeve 202 is installed on the base 100 . A snap fitter 203 is also provided on the rotating shaft 201 . The snap fitter 203 cooperates with the base 100 to form a snap fit portion 300 .

[0035] The handle 400 is connected to the rotating shaft 201, and the handle 400 can drive the rotating shaft 201 to rotate relatively around the shaft sleeve 202. When the handle 400 is rotated to the locking position, the LED display box can be clamped on the clamping part 300.

[0036] The locking mechanism 500 realizes mutual locking between the rotating shaft 201 and the shaft sleeve 202 when no external force acts on the locking mechanism 500 ; when an external force acts on the locking mechanism 500 , the rotating shaft 201 realizes relative rotation around the shaft sleeve 202 .

[0037] In some embodiments of the present invention, the base 100 includes a fixing base 101 and a mounting base 102 which are perpendicular to each other and detachably connected. The fixing base 101 is detachably connected to the back frame of the LED display screen. The mounting base 102 is provided with a through hole 103. The sleeve 202 is sleeved in the through hole 103 to fix the sleeve 202 on the base 100.

[0038] In some embodiments of the present invention, in order to further fix the shaft sleeve 202 , a limiter is further provided on the mounting seat 102 to prevent the shaft sleeve 202 from sliding.

[0039] In some embodiments of the present invention, the stopper is a screw, the mounting seat 102 is provided with a threaded hole 1022, and the sleeve 202 is provided with a limiting groove 2021. Tighten the screw so that the screw passes through the threaded hole 1022 and vertically abuts against the bottom of the limiting groove 2021, so that the sleeve 202 can be prevented from moving forward and backward and rolling left and right.

[0040] In some embodiments of the present invention, the clamp 203 is an elliptical clamping plate detachably connected to the rotating shaft 201, and a docking hole adapted to the shape of the elliptical clamping plate is provided on the LED display screen box. When the LED display screen box is installed, the elliptical clamping plate passes through the docking hole and rotates to a certain angle. Then, the LED display screen box can be clamped in the clamping part 300 formed between the elliptical clamping plate and the mounting seat 102.

[0041] In some embodiments of the present invention, Figure 1 As shown, an elastic buffer element 600 is further provided between the elliptical pallet and the rotating shaft 201 , and the elastic buffer element 600 can play a shock-absorbing role during transportation.

[0042] In some embodiments of the present invention, the locking mechanism 500 includes a toothed ring 501 sleeved on the shaft sleeve 202, a tripping rod 502 rotatably arranged on the handle 400, and an elastic reset member 503 transmission-connected to the tripping rod 502. The tripping rod 502 is separated from the toothed ring 501 under the pressure of an external force, and the handle 400 can drive the rotating shaft 201 to rotate relative to the shaft sleeve 202 within a certain range; after the external force is removed, the tripping rod 502 is meshed with the toothed ring 501 under the elastic force of the elastic reset member 503, and the handle 400 and the shaft sleeve 202 are locked with each other, and the rotating shaft 201 cannot achieve relative rotation around the shaft sleeve 202.

[0043] In some embodiments of the present invention, two opposing protrusions 5011 are provided on the outer annular surface of the gear ring 501, a limiting protrusion 402 is provided inside the handle 400, and a V-shaped tooth is provided on the annular surface on one side of the line connecting the positions of the two protrusions 5011. In contrast, a tooth block meshing with the V-shaped tooth is also provided on the tripping rod 502. The limiting protrusion 402 moves along the annular surface on the other side of the line connecting the positions of the two protrusions 5011, that is, when the handle 400 rotates, the position of the limiting protrusion 402 is always between the two protrusions 5011, thereby realizing the relative rotation of the rotating shaft 201 and the shaft sleeve 202 within a certain angle range.

[0044] In some embodiments of the present invention, a notch 401 is provided on the side of the handle 400, and the tripping rod 502 includes a transmission part 5021 and an operating part 5022, and the transmission part 5021 partially extends out of the notch 401. When the operating part 5022 is pressed, the transmission part 5021 is driven to rotate by the force, and at this time, the tooth block on the transmission part 5021 and the V-shaped teeth on the gear ring 501 are separated from each other.

[0045] In some embodiments of the present invention, the elastic reset member 503 is a torsion spring, a fixed shaft 403 is provided in the handle 400, the torsion spring and the tripping rod 502 are sequentially sleeved on the fixed shaft 403, the lead end on one side of the torsion spring is fixed on the inner wall of the handle 400, the tripping rod 502 is provided with a through slot, the lead end on the other side of the torsion spring is inserted into the through slot, when an external force acts on the tripping rod 502, the through slot also moves with the tripping rod 502, and the torsion spring generates torsion at this time. After the external force is removed, under the action of the torsion, the tripping rod 502 is reset and meshes with the gear ring 501.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fixed connection structure between an LED display box and a back frame, characterized in that: include: A base (100) disposed on the back frame; A transmission member (200), comprising a rotating shaft (201) and a shaft sleeve (202), wherein the rotating shaft (201) is inserted into the shaft sleeve (202), the shaft sleeve (202) is mounted on the base (100), a snap-fit ​​device (203) is provided on the rotating shaft (201), and the snap-fit ​​device (203) cooperates with the base (100) to form a snap-fit ​​portion (300); A handle (400) connected to the rotating shaft (201) and capable of driving the rotating shaft (201) to rotate around the shaft sleeve (202); A locking mechanism (500) for achieving rotational locking and rotational unlocking between the rotating shaft (201) and the shaft sleeve (202); The base (100) comprises a fixing seat (101) and a mounting seat (102) which are perpendicular to each other and detachably connected, the fixing seat (101) being detachably connected to the back frame, the mounting seat (102) being provided with a through hole (103), and the shaft sleeve (202) being sleeved in the through hole (103); The locking mechanism (500) comprises a toothed ring (501) sleeved on the shaft sleeve (202), a tripping rod (502) rotatably arranged on the handle (400), and an elastic reset member (503) transmission-connected to the tripping rod (502); the tripping rod (502) is separated from the toothed ring (501) under the pressure of an external force; after the external force is removed, the tripping rod (502) meshes with the toothed ring (501) under the elastic force of the elastic reset member (503).

2. The fixed connection structure of the LED display box and the back frame according to claim 1 is characterized in that In, The mounting seat (102) is also provided with a limiter for preventing the shaft sleeve (202) from sliding.

3. The fixed connection structure of the LED display box and the back frame according to claim 2 is characterized in that In, The limiter is a screw, the mounting seat (102) is provided with a threaded hole (1022), the shaft sleeve (202) is provided with a limiting groove (2021), and the screw passes through the threaded hole (1022) and vertically abuts against the bottom of the limiting groove (2021).

4. The fixed connection structure of the LED display box and the back frame according to claim 1, characterized in that In, The clamp (203) is an elliptical clamping plate detachably connected to the rotating shaft (201).

5. The fixed connection structure of the LED display box and the back frame according to claim 4, characterized in that In, An elastic buffer element (600) is also provided between the elliptical clamping plate and the rotating shaft (201).

6. The fixed connection structure of the LED display box and the back frame according to claim 1, characterized in that In, A cutout portion (401) is provided on the side of the handle (400), and the tripping rod (502) comprises a transmission portion (5021) and an operating portion (5022), wherein a portion of the transmission portion (5021) extends out of the cutout portion (401).

7. The fixed connection structure of the LED display box and the back frame according to claim 1, characterized in that In, Two opposing protrusions (5011) are provided on the outer ring surface of the toothed ring (501), a limiting protrusion (402) is provided inside the handle (400), a V-shaped tooth is provided on the ring surface on one side of the line connecting the positions of the two protrusions (5011), and the limiting protrusion (402) moves along the ring surface on the other side of the line connecting the positions of the two protrusions (5011).

8. The fixed connection structure between the LED display box and the back frame according to claim 1, 6 or 7, characterized in that: The elastic return member (503) is a torsion spring. A fixed shaft (403) is provided in the handle (400). The torsion spring and the tripping rod (502) are sequentially sleeved on the fixed shaft (403). The lead-out end on one side of the torsion spring is connected to the handle (400), and the lead-out end on the other side of the torsion spring is connected to the tripping rod (502).

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