CN116597738A - Folding LED display screen - Google Patents

Abstract

The utility model discloses a folding LED display screen which comprises LED display modules, hinges and pull ropes, wherein each LED display module comprises a supporting frame and at least one LED light bar unit fixed on the front face of the supporting frame, a plurality of LED display modules are longitudinally arranged from bottom to top, adjacent LED display modules are connected through the hinges, each pull rope is longitudinally fixed on each LED display module, and the axial lead of each pull rope and the axial lead of a pin shaft of each hinge are positioned on the same plane. The folding LED display screen has the advantages of being simple in structure and capable of guaranteeing unfolding flatness of the LED display screen.

Description

Folding LED display screen

Technical Field

The utility model relates to the technical field of LED display screens, in particular to a folding LED display screen.

Background

Compared with the traditional outdoor media such as spray painting advertisements and the like, the LED display screen has the advantages of energy conservation, environmental protection, convenient replacement of content display, more ornamental value and the like, and is widely applied to scenes such as advertising, information display and the like.

Common LED display screens are generally formed by splicing a plurality of LED display modules, and are fixed at a target position such as a building outer wall or the like through a steel structure frame, and such fixed-mounted LED display has the defects of inconvenient disassembly, transportation and the like. In view of this, people develop a foldable LED display screen to further improve the convenience of use of the LED display screen. If the patent of the utility model with the publication number of CN203689840U is issued, a longitudinal folding LED screen is disclosed, which comprises a plurality of LED sub-screens which are longitudinally arranged, a plurality of steel wires and a bearing steel wire, wherein the LED sub-screens are mutually connected through hinges, one ends of the steel wires are connected with the back surface of the LED sub-screen, the other ends of the steel wires are connected with a ring buckle, one ends of weighing steel wires are fixed, and the other ends of the weighing steel wires sequentially penetrate through all the ring buckles to be driven by a motor or pulled manually, so that the folding or unfolding of the LED display screen is realized. The foldable LED display screen adopting the folding/unfolding driving mechanism has a complex structure, and the unfolding flatness of the LED display screen is difficult to ensure.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a folding LED display screen which has a simple structure and can ensure the unfolding flatness of the LED display screen.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a foldable LED display screen, its is including LED display module assembly, hinge and stay cord, the LED display module assembly is including a braced frame and at least one be fixed in the positive department of braced frame's LED lamp strip unit, a plurality of LED display module assembly is from bottom to top vertically arranges, passes through between the adjacent LED display module assembly the hinge is connected, the stay cord is vertically fixed in each on the LED display module assembly, just the axial lead of stay cord with the round pin axle axial lead of hinge is in the coplanar.

The beneficial technical effects of the utility model are as follows: the folding LED display screen disclosed is characterized in that the pull rope is longitudinally arranged and fixed with each LED display module, the unfolding or folding of the LED display screen is realized by controlling the up-and-down movement of the pull rope, the structure is simpler, in addition, each LED display module is longitudinally fixed by the pull rope, the axial lead of the pull rope and the axial lead of a pin shaft of a hinge are positioned on the same plane, and the folding LED display screen is favorable for ensuring the flatness of the unfolding state of the LED display screen.

Drawings

Fig. 1 is a schematic structural view of a folding LED display screen of the present utility model.

Fig. 2 is a schematic structural view of the support frame of the present utility model.

Fig. 3 is a schematic view of another angle structure of the support frame of the present utility model.

Fig. 4 is a schematic structural view of the LED light bar unit of the present utility model.

Fig. 5 is an enlarged view of a portion a of fig. 2.

Fig. 6 is an enlarged view of a portion B of fig. 2.

Fig. 7 is an enlarged view of a portion C of fig. 2.

Fig. 8 is a schematic structural view of the first hinge of the present utility model.

Fig. 9 is an exploded view of the first hinge of the present utility model.

Fig. 10 is a schematic structural view of a second hinge of the present utility model.

Fig. 11 is an exploded view of the second hinge of the present utility model.

Fig. 12 is a schematic structural view of the base hinge of the present utility model.

Fig. 13 is an exploded view of the base hinge of the present utility model.

Fig. 14 to 17 are schematic views of the folding LED display screen of the present utility model in different states.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

It is to be understood that in the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise; the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; unless specifically stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, directly connected, or indirectly connected via an intermediary; the terms "longitudinal," "transverse," "upper," "lower," "vertical," "horizontal," "front," "back," "front," "rear," and the like are used for convenience of description and simply as a basis for the orientation or positional relationship shown in the drawings, and are not to be construed as limiting the utility model, as the indicated positions or elements must have a particular orientation, be construed as being particular orientations.

Referring to fig. 1 to 6, in some embodiments of the present utility model, a foldable LED display screen includes a plurality of LED display modules 10, a plurality of hinges 20, and a plurality of pull ropes 30, wherein the plurality of LED display modules 10 are arranged in a longitudinal direction from bottom to top, adjacent LED display modules 10 are connected by the hinges 20, the pull ropes 20 are longitudinally fixed to each LED display module 10, and the axis of the pull ropes 30 and the axis of the pin shafts of the hinges 20 are located on the same plane, and the unfolding or folding of the LED display screen is achieved by controlling the up-down movement of the pull ropes 30.

In the embodiment shown in the drawings, two longitudinal pull ropes 30 are provided, and the pull ropes 30 are manipulated to realize the unfolding or folding of the LED display screen, and in other embodiments, a greater or lesser number of pull ropes 30 may be provided according to the actual size of the LED display screen to be manufactured. Preferably, the pull cord 30 is a wire rope, although any suitable cord known in the art may be used.

Referring to fig. 1 to 4, the LED display module 10 includes a supporting frame 11 and at least one LED light bar unit 12 fixed on the front surface of the supporting frame 11. In this embodiment, the supporting frame 11 has a cross structure and includes two cross bars 110 and two vertical bars 111 cross-connected with the cross bars 110; the LED light bar unit 12 includes two lateral support bars 120 and a plurality of longitudinal LED light bars 121 fixed on the support bars 120 in a laterally spaced arrangement. The two support bars 120 are correspondingly attached to the two cross bars 110 and connected using fasteners such as screws, bolts, etc., thereby fixing the LED light bar unit 12 at a target position of the support frame 11. The front side of the support rod 120 is concavely formed with a clamping groove 1200 along the length direction of the support rod 120, the upper and lower parts of the back side of each LED light bar 121 are respectively provided with a clamping block 1210, and the two clamping blocks 1210 are respectively clamped in the clamping grooves 1200 of the two support rods 120, so that the LED light bars 121 are fixedly arranged on the support rod 120.

In the embodiment shown in the drawings, the axis of the pin shaft of the hinge 20 is located in front of the front surface of the LED display module 10, and in order to keep the axis of the pull ropes 30 and the axis of the pin shaft of the hinge 20 in the same plane, the pull ropes 30 are fixed on the front surface of the LED display module 10. As will be appreciated by those skilled in the art, when the pin axis of the hinge 20 is located behind the back of the LED display module 10, a plurality of pull cords 30 need to be secured at the back of the LED display module 10.

As shown in fig. 5, the pull cord 30 is longitudinally disposed at the front side of the LED display module 10 by a plurality of pressing blocks 31, the pressing blocks 31 include a lower pressing block 310 fixed on the supporting frame 11 and an upper pressing block 311 covering the lower pressing block 310, wherein a longitudinal lower accommodating groove 3100 is concavely formed at the front side of the lower pressing block 310, a longitudinal upper accommodating groove 3110 is concavely formed at the back side of the upper pressing block 311, the pull cord 30 is clamped between the lower accommodating groove 3100 and the upper accommodating groove 3110, and the upper pressing block 311 and the lower pressing block 310 are screwed by using screws 312, so that the pull cord 30 is fixedly disposed at the front side of the supporting frame 11.

In the embodiment shown in the drawings, the hinge 20 includes a first hinge 21 and a second hinge 22 opposite to the first hinge 21, and adjacent LED display modules 10 are alternately connected by using the first hinge 21 and the second hinge 22, that is, at the odd adjacent connection positions of the LED display modules 10 (for example, between the first LED display module and the second LED display module from bottom to top, and between the third display module and the fourth display module … …) by using the first hinge 21; the second hinge 22 is used to connect even adjacent connection points of the LED display modules 10 (for example, … … between the second and third LED display modules from bottom to top). Of course, the connection may also be made using the second hinge 22 at the odd adjacent junctions and the first hinge 21 at the even adjacent junctions.

In some embodiments, referring to fig. 5, 8 and 9, the first hinge 21 includes a first upper hinge base 210, a first upper plugging portion 211 vertically formed at the top surface of the first upper hinge base 210, a first lower hinge base 212, a first lower plugging portion 213 vertically formed at the bottom surface of the first lower hinge base 212, and a first hinge rod 214 respectively hinged to the first upper hinge base 210 and the first lower hinge base 212, wherein the first upper plugging portion 211 is plugged into the supporting frame 11 of the upper LED display module 10, and the first lower plugging portion 213 is plugged into the supporting frame 11 of the lower LED display module 10 and is respectively fixed by using fasteners such as bolts, so that the connection between the adjacent LED display modules 10 is realized by the first hinge 21 and the first hinge rod 214 can be folded back; referring to fig. 6, 10 and 11, the second hinge 22 includes a second upper hinge base 220, a second upper socket 221 vertically formed at a top surface of the second upper hinge base 220, a second lower hinge base 222, a second lower socket 223 vertically formed at a bottom surface of the second lower hinge base 222, and a second hinge rod 224 respectively hinged to the second upper hinge base 220 and the second lower hinge base 222, wherein the second upper socket 221 is inserted into the supporting frame 11 of the upper LED display module 10, and the second lower socket 223 is inserted into the supporting frame 11 of the lower LED display module 10, and is fixed by using fasteners such as bolts, respectively, so that the connection of the adjacent LED display modules 10 is achieved by the second hinge 21 and can be folded forward. The first hinge 21 and the second hinge 22 adopt a plugging mode to realize connection with the LED display module 10, so that the connection of the first hinge and the second hinge is firmer.

Referring to fig. 5, 8 and 9, in some preferred embodiments, the first upper hinge base 210 includes a first upper top plate 2100, first upper side plates 2101 respectively disposed on the left and right sides of the first upper top plate 2100 and perpendicular to the first upper top plate 2100, and a first upper front side plate 2102 disposed on the front side of the first upper top plate 2100 and perpendicular to the first upper top plate 2100, such that the first upper hinge base 210 forms a hinge position with an opening on the bottom surface and the rear side surface, the first lower hinge base 212 includes a first lower bottom plate 2120, first lower side plates 2121 respectively disposed on the left and right sides of the first lower bottom plate 2120 and perpendicular to the first lower bottom plate 2120, and a first lower front side plate 2122 respectively disposed on the front side of the first lower bottom plate 2120 and perpendicular to the first lower bottom plate 2120, and such that the first lower hinge base 212 forms a hinge position with an opening on the top surface and the rear side surface, the upper end of the first hinge rod 214 is disposed in the hinge position of the first upper hinge base 210, and the lower end is disposed in the hinge position 212, such that the first hinge base 212 is connected to the first lower hinge base 212 by the hinge base 212 via the hinge pins 215. The rotation angle of the upper LED module 10 connected thereto is set to 90 ° by the rotation limitation of the first upper top plate 2100 and the first upper front side plate 2102 perpendicular thereto with respect to the first hinge lever 214, and the rotation angle of the lower LED module 10 connected thereto is set to 90 ° by the rotation limitation of the first lower bottom plate 2120 and the first lower front side plate 2122 perpendicular thereto with respect to the first hinge lever 214.

Referring to fig. 6, 10 and 11, in some preferred embodiments, the second upper hinge base 220 includes a second upper top plate 2200, second upper side plates 2201 respectively disposed on left and right sides of the second upper top plate 2200 and perpendicular to the second upper top plate 2200, and a second upper rear side plate 2202 disposed on rear side of the second upper top plate 2200 and perpendicular to the second upper top plate 2200, such that the second upper hinge base 220 is formed with a hinge position with an opening on a bottom surface and a front side surface, the second lower hinge base 222 includes a second lower bottom plate 2220, second lower side plates 2221 respectively disposed on left and right sides of the second lower bottom plate 2220 and perpendicular to the second lower bottom plate 2220, and a second lower rear side plate 2222 respectively disposed on rear side of the second lower bottom plate 2220, such that the second lower hinge base 222 forms a hinge position with an opening on a top surface and a front side surface, the upper end portion of the second hinge rod 224 is disposed in the second upper hinge base 220, and the lower end portion of the second hinge base 222 is disposed in the second hinge base 220, such that the second hinge base 222 is connected to the second hinge base 222 by the second hinge base and the second hinge base 222 is formed by the second hinge pin shafts 224. The rotation angle of the upper LED module 10 connected thereto is set to 90 ° by the rotation limitation of the second upper top plate 2200 and the second upper rear side plate 2202 perpendicular thereto with respect to the second hinge lever 224, and the rotation angle of the lower LED module 10 connected thereto is set to 90 ° by the rotation limitation of the second lower bottom plate 2220 and the second lower rear side plate 2222 perpendicular thereto with respect to the second hinge lever 214.

The first hinge 21 and the second hinge 22 with the structure are used for connecting the adjacent LED display modules 10, and the stability of the LED display screen between the adjacent LED display modules 10 in the folding/unfolding process is ensured by limiting the rotation range of the hinge base to the hinge rod.

Since the thickness of the support frame 11 is generally greater than that of the LED light bar unit 12, in order to prevent the LED display module 10 from interfering with the LED display module 10 below when being folded back, the length of the first hinge lever 214 for connecting the first hinge 21 of the LED display module 10 adjacent to the LED display module 10 below thereof, which is folded back, is greater than the length of the first hinge lever 224 for connecting the second hinge 22 of the LED display module 10 adjacent to the LED display module 10 below thereof, which is folded forward.

Referring to fig. 1 to 3, in some embodiments, the foldable LED display screen disclosed in the present utility model further includes a base 40, and the lower end of the lowermost LED display module 10 is connected to the base 40 through a base hinge 50. Thus, the LED display screen can be folded and stored on the base 40, and the LED display screen can be protected to a certain extent.

In this embodiment, the base 40 includes a bottom plate 41 made of elastic material and a connecting rod 42 fixed at the rear edge of the bottom plate 41, and as shown in fig. 12 and 13, the base hinge 50 includes a fixing base 51, a connecting base 52 hinged with the fixing base 51, and a third plugging portion 53 vertically formed at the top of the connecting base 52, the fixing base 51 is fixedly connected to the connecting rod 42, and the third plugging portion 53 is plugged into the supporting frame 11 of the lowermost LED display module 10 and is connected and fixed by using a fastener such as a bolt, so as to realize the hinge connection of the LED display module 10 and the base 40.

As shown in fig. 14 to 17, in the use process, the pull rope 30 is controlled to move upwards, so that the uppermost first and second LED display modules 10 are driven to be turned and unfolded until the hinge 20 is defined, and similarly, the pull rope 30 is continuously moved upwards to drive the lower LED display modules 10 to be continuously turned and unfolded until the LED display screen is completely unfolded; after the use is finished, the pull rope 30 is controlled to move downwards, under the action of gravity and with the limit function of the hinge 20, the first and second LED display modules 10 at the lowest are turned and folded until the hinge 20 is limited, and similarly, the pull rope 30 is continued downwards to enable the LED display modules 10 at the upper to be turned and folded continuously, so that the LED display screen is folded completely.

According to the folding type LED display screen disclosed by the utility model, the pull ropes 30 are longitudinally arranged and fixed with each LED display module 10, the unfolding or folding of the LED display screen is realized by controlling the up-and-down movement of the pull ropes 30, the structure is simple, in addition, each LED display module 10 is longitudinally fixed by the pull ropes 30, the axial lead of each pull rope 30 and the axial lead of a pin shaft of the hinge 20 are positioned on the same plane, and the smoothness of the unfolding state of the LED display screen is ensured.

The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Various equivalent changes and modifications can be made by those skilled in the art based on the above embodiments, and all equivalent changes or modifications made within the scope of the claims shall fall within the scope of the present utility model.

Claims (10)

1. The utility model provides a foldable LED display screen, is including LED display module assembly, hinge and stay cord, the LED display module assembly is including a braced frame and at least one be fixed in the positive department of braced frame's LED lamp strip unit, a plurality of LED display module assembly is from bottom to top longitudinal arrangement, passes through between the adjacent LED display module assembly hinge connection, its characterized in that: the pull ropes are longitudinally fixed on each LED display module, and the axial lead of the pull ropes and the axial lead of the pin shafts of the hinges are in the same plane.

2. The folding LED display screen of claim 1, wherein: the stay cord vertically set up in the front department of LED display module assembly.

3. The folding LED display screen of claim 1, wherein: the stay cord through a plurality of briquetting and vertically set up in the front department of LED display module assembly, the briquetting is including one be fixed in braced frame's lower briquetting and one cover in lower briquetting's last briquetting, lower briquetting's front department is concave to be formed with a fore-and-aft lower accommodation groove, go up briquetting's back department and concave to be formed with a fore-and-aft last accommodation groove, will the stay cord centre gripping in down between accommodation groove and the last accommodation groove and use the screw spiro union go up briquetting and lower briquetting.

4. The folding LED display screen of claim 1, wherein: the support frame comprises two cross bars and two vertical bars which are in cross connection with the cross bars, the LED lamp bar unit comprises two transverse support bars and a plurality of longitudinal LED lamp bars which are fixed on the support bars in a transverse interval arrangement mode, the two support bars are correspondingly attached to the two cross bars and are connected by using fasteners, a clamping groove is concavely formed in the front of the support bars along the length direction of the support bars, a clamping block is respectively arranged at the upper portion and the lower portion of the back of each LED lamp bar, and the two clamping blocks are respectively clamped in the clamping grooves of the two support bars.

5. A folding LED display screen according to any one of claims 1 to 4, wherein: the hinge comprises a first hinge and a second hinge opposite to the folding direction of the first hinge, wherein the first hinge and the second hinge are alternately used for connection between the adjacent LED display modules, the first hinge comprises a first upper hinge seat, a first upper inserting part vertically formed at the top surface of the first upper hinge seat, a first lower inserting part vertically formed at the bottom surface of the first lower hinge seat and a first hinge rod respectively hinged to the first upper hinge seat and the first lower hinge seat, the first upper inserting part is inserted into a supporting frame of the LED display module positioned above, and the first lower inserting part is inserted into a supporting frame of the LED display module positioned below and is respectively fixed by using a fastener, so that the connection between the adjacent LED display modules is realized by the first hinge; the second hinge comprises a second upper hinge seat, a second upper inserting part vertically formed on the top surface of the second upper hinge seat, a second lower inserting part vertically formed on the bottom surface of the second lower hinge seat and a second hinge rod respectively hinged to the second upper hinge seat and the second lower hinge seat, wherein the second upper inserting part is inserted into a supporting frame of an LED display module located above, and the second lower inserting part is inserted into a supporting frame of an LED display module located below and is fixed by using fasteners respectively, so that connection of adjacent LED display modules is realized by the second hinge.

6. The folding LED display screen of claim 5, wherein: the first upper hinge seat comprises a first upper top plate, first upper side plates which are respectively arranged at the left side and the right side of the first upper top plate and are perpendicular to the first upper top plate, and first upper front side plates which are respectively arranged at the front side of the first upper top plate and are perpendicular to the first upper top plate, so that the first upper hinge seat is formed with a bottom surface and a hinge position with a rear side opening, the first lower hinge seat comprises a first lower bottom plate, first lower side plates which are respectively arranged at the left side and the right side of the first lower bottom plate and are perpendicular to the first lower bottom plate, and first lower front side plates which are respectively arranged at the front side of the first lower bottom plate and are perpendicular to the first lower bottom plate, so that the first lower hinge seat forms a hinge position with a top surface and a rear side opening, and the upper end part of the first hinge rod is arranged in the hinge position of the first upper hinge seat, and the lower end part of the first lower hinge seat is respectively connected by using a pin shaft.

7. The folding LED display screen of claim 6, wherein: the second upper hinge seat comprises a second upper top plate, second upper side plates which are respectively arranged at the left side and the right side of the second upper top plate and are vertical to the second upper top plate, and a second upper rear side plate which is arranged at the rear side of the second upper top plate and is vertical to the second upper top plate, so that the second upper hinge seat is formed with a bottom surface and a hinge position with an open front side, the second lower hinge seat comprises a second lower bottom plate, second lower side plates which are respectively arranged at the left side and the right side of the second lower bottom plate and are vertical to the second lower bottom plate, and a second lower rear side plate which is arranged at the rear side of the second lower bottom plate and is vertical to the second lower bottom plate, so that the second lower hinge seat forms a hinge position with an open top surface and a front side, the upper end part of the second hinge rod is arranged in the hinge position of the second upper hinge seat, and the lower end part of the second lower hinge seat is arranged in the hinge position of the second lower hinge seat, and is respectively connected by a pin shaft.

8. The folding LED display screen of claim 7, wherein: the second hinge rod has a length greater than a length of the first hinge rod.

9. The folding LED display screen of claim 1, wherein: the folding LED display screen further comprises a base, and the lower end part of the LED display module located at the lowest part is connected with the base through a base hinge.

10. The folding LED display screen of claim 9, wherein: the base comprises a bottom plate and a connecting rod, wherein the bottom plate is made of elastic materials, the connecting rod is fixed at the edge of the rear part of the bottom plate, the base hinge comprises a fixed seat, a connecting seat hinged with the fixed seat and a third inserting part vertically formed at the top of the connecting seat, the fixed seat is fixedly connected to the connecting rod, and the third inserting part is inserted into a supporting frame of the lowermost LED display module and is connected and fixed by using a fastener.