CN112530297A

CN112530297A - Tensile resistance structure for improving stability of folding screen and display device

Info

Publication number: CN112530297A
Application number: CN202110056638.7A
Authority: CN
Inventors: 王宁; 刘怡彤
Original assignee: Onumen Technology Co ltd
Current assignee: Onumen Technology Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-03-19

Abstract

The invention discloses a tensile structure for improving the stability of a folding screen and a display device, comprising: the reinforcing rib line of the back of the folding screen is attached tightly, a plurality of positioning blocks are arranged on each reinforcing rib line, the back of the folding screen is provided with a limiting seat of a plurality of matched positioning blocks, and when the folding screen is unfolded, the positioning blocks and the limiting seat are matched to provide upward supporting force for the folding screen when the reinforcing rib line is pulled upwards through the lifting device. According to the invention, the longitudinal reinforcing steel wire is arranged on the back surface of the folding screen, and three schemes that the positioning block is arranged on the reinforcing steel wire and matched with the limiting seat on the back surface of the folding screen are provided, so that the support is provided for each display unit, the integral stress of the folding screen is balanced and not too concentrated, and the effect of enhancing the longitudinal tensile force of the screen is achieved. When the folding screen needs to be folded, the lifting device releases the reinforcing steel wire downwards, the limiting seat is not in stress connection with the positioning block, and the folding and unfolding actions of the screen are prevented from being influenced.

Description

Tensile resistance structure for improving stability of folding screen and display device

Technical Field

The invention relates to the field of screen display, in particular to a tensile structure for improving the stability of a folding screen and a display device.

Background

An LED display (LED display) is a flat panel display, which is composed of small LED module panels, and is used to display various information such as text, image, video, and video signals. The existing display screens can be roughly divided into two types according to the size, one type is a large display screen, and information such as advertisements is put on a general fixed wall facing to a street. The utility model provides a for small-size display screen, the wide application is in various electronic equipment, and in some specific use scenes, if the business travel in-process, needs to set up the place temporarily and demonstrate relevant information, then the effect that the small-screen display shows can not satisfy actual need, and large-scale display screen is not convenient for again remove.

In order to facilitate carrying and storage of the large display screen, a plurality of display units are hinged up and down in the prior art and spliced into a foldable display screen. When in use, the display unit can be unfolded and a whole display surface is formed by a plurality of display units for displaying. After the folding screen is unfolded, since only the uppermost one of the display units is fixed and the other display units are unfolded one by one downward, the longitudinal tension of the folding screen is excessively large and the screen assembly is easily damaged.

Disclosure of Invention

The invention provides a tensile structure for improving the stability of a folding screen and a display device, aiming at solving the technical problem that the folding screen in the prior art is easy to damage due to overlarge longitudinal tension.

The technical scheme adopted by the invention is as follows:

the invention provides a tensile structure for improving the stability of a folding screen, which comprises: the foldable screen comprises a plurality of reinforcing rib lines which are arranged along the longitudinal direction on the back of the foldable screen in a tight attaching mode, a lifting device which is connected with the tops of the reinforcing rib lines and can upwards pull the reinforcing rib lines is arranged, a plurality of positioning blocks are arranged on each reinforcing rib line, a plurality of limiting seats matched with the positioning blocks are arranged on the back of the foldable screen, and when the reinforcing rib lines are upwards pulled through the lifting device when the foldable screen is unfolded, the positioning blocks are matched with the limiting seats to provide upwards supporting force for the foldable screen.

Furthermore, the folding screen is formed by hinging a plurality of display units up and down, a plurality of limiting seats are arranged on the back of each display unit at transverse intervals, and one positioning block on each reinforcing rib line corresponds to one limiting seat.

In a first embodiment, the reinforcing rib wire penetrates through the limiting seat, the positioning block is positioned below the limiting seat corresponding to the positioning block, and the positioning block is abutted against the bottom surface of the limiting seat when the reinforcing rib wire is pulled upwards.

In a second embodiment, an auxiliary reinforcing rib line is connected between the positioning block and the limiting seat, and the auxiliary reinforcing rib line is tightened when the reinforcing rib line is pulled upwards. The auxiliary reinforcing rib line is fixed on the limiting seat through a screw.

In a third embodiment, the reinforcing rib passes through the limiting seat, a sliding groove for the positioning block to slide up and down is formed in the limiting seat, and the positioning block is installed in the sliding groove.

According to the technical scheme, each reinforcing rib line is formed by buckling the sub reinforcing rib lines end to end, buckling seats are arranged at the end portions of the sub reinforcing rib lines, and the buckling seats of the sub reinforcing rib lines are buckled together to form a positioning block.

The lifting device comprises: the lifting plate is transversely connected with the top ends of all the reinforcing rib wires, the lifting steel wires of the lifting plate are connected, and the motor is arranged on the upper portion of the lifting plate and drives the steel wire winding drum to rotate to tighten or release the lifting steel wires.

Preferably, the reinforcing bar wires are steel wires.

The invention also provides a display device which comprises the folding screen and the tensile structure.

Compared with the prior art, the invention tightens the reinforcing steel wire upwards through the lifting device, so that the positioning blocks on the reinforcing steel wire are matched with the limiting seats on the back of the folding screen, upward supporting force is provided for the limiting seats, namely, upward supporting force is provided for each display unit of the folding screen, and force is dispersed to the plurality of limiting seats on the back of the folding screen, so that the integral pulling force of the folding screen is balanced and cannot be excessively concentrated, and the longitudinal tensile force of the folding screen is enabled to be prevented. When the folding screen needs to be folded and folded, the reinforcing steel wire is released downwards through the lifting device, the limiting seat is not in stress connection with the positioning block, and the folding and unfolding actions of the screen are prevented from being influenced.

The head of the reinforcing steel wire is fixed on the bearing strip, so that the stress of each steel wire is uniform.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a schematic view of a positioning block and a limiting seat according to a first embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 4 is a schematic view of a positioning block and a limiting seat according to a second embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 6 is a schematic view of a positioning block and a limiting seat according to a third embodiment of the present invention;

FIG. 7 is a schematic view of a third embodiment of the present invention when folded;

FIG. 8 is an enlarged view of a portion of FIG. 7;

fig. 9 is a schematic view of the structure of the sub-reinforcing rib line of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.

As shown in fig. 1 and 7, the present invention provides a tensile structure for improving stability of a folded screen, including: the lifting device comprises a plurality of reinforcing rib wires 1, a positioning block 2, a limiting seat 3 and a lifting device 4. The folding screen 5 is formed by hinging a plurality of display units 51 up and down, a support frame 6 is arranged at the top of the folding screen 5, and the uppermost display unit 51 is connected with the support frame 6 through a steel wire, so that the folding screen 5 is suspended. The back of folding screen 5 is equipped with a plurality of spacing seats 3 that are located the rib line and pass through the position along longitudinal direction, and rib line 1 passes spacing seat 3 along longitudinal direction, makes rib line 1 paste the back of folding screen 5 to along horizontal interval. The top of the reinforcing rib line 1 is connected with a lifting device 4, the lifting device 4 can be arranged on a support frame 6, the lifting device 4 can be pulled upwards to tighten the reinforcing rib line 1, or the reinforcing rib line 1 is released downwards after the reinforcing rib line 1 is tightened. When the folding screen expandes, upwards tighten up the strengthening rib line 1 through carrying draw gear 4, locating piece 2 on the strengthening rib line 1 can cooperate with spacing seat 3 at the folding screen 5 back, and spacing seat 3 provides ascending holding power, provides ascending holding power for whole folding screen 5 promptly to on will exerting oneself a plurality of spacing seats 3 at the folding screen 5 back, make the holistic pulling force of folding screen balanced, can not too concentrate. Therefore, the block display units or the unit plates are hung on the reinforcing rib lines through the positioning blocks, and the effect of enhancing the longitudinal tensile force of the folding screen is achieved. When the folding screen needs to be folded and folded, the reinforcing rib wire is released downwards through the lifting device, the limiting seat is not in stress connection with the positioning block, and the folding and unfolding actions of the screen are prevented from being influenced.

The foldable screen 5 is composed of a plurality of display units 51 hinged in series, i.e. the first and second uppermost display units can be folded outwards, the second and third display units can be folded inwards, and the third and fourth display units can be folded outwards, and are connected to the nth display unit according to the rule. The middle part of the back of each display unit 51 is transversely provided with a plurality of limiting seats 3 at intervals, and the reinforcing rib wire 1 longitudinally penetrates through the limiting seats 3 on the same straight line, so that each positioning block 2 on the reinforcing rib wire 1 can correspond to one limiting seat 3 on one display unit 51. Therefore, the block display unit 51 is hung on the reinforcing rib line 1 through the positioning block 2, and the tensile resistance effect is achieved.

The invention provides three embodiments of matching of a limiting seat and a positioning block, which specifically comprise the following steps:

fig. 1 and 2 show a first embodiment, in which through holes are formed in the upper and lower end surfaces of a limiting seat 3, and reinforcing rib wires 1 pass through the limiting seat 3 through the through holes, so that the reinforcing rib wires are attached to the back surface of a folding screen 5. The positioning block 2 is located below the corresponding limiting seat 3, and when the reinforcing rib line 1 is pulled upwards, the positioning block 2 moves upwards to abut against the bottom surface of the limiting seat 3 to provide a supporting force for the limiting seat 3, so that the display unit 51 is attached to the reinforcing rib line 1.

Fig. 3 and 4 show a second embodiment, in which a reinforcing rib line 1 is attached to a limiting seat 3 and vertically passes through the limiting seat 3, a screw 31 fixed to the limiting seat is arranged on one side of the reinforcing rib line 1 on the limiting seat 3, an auxiliary reinforcing rib line 11 is fixed to the screw 31, one end of the auxiliary reinforcing rib line 11 is connected to the screw 31, and the other end of the auxiliary reinforcing rib line 11 is connected to a positioning block 2, when the reinforcing rib line 1 is pulled upwards, the positioning block 2 moves upwards to tighten the auxiliary reinforcing rib line 11 between the positioning block 2 and the screw 31, and provide an upward pulling force for the limiting seat 3, thereby counteracting the pulling force generated by the gravity of part or all of the display units.

Fig. 5 and 6 show a third embodiment, in which through holes are formed in the upper and lower end surfaces of a limiting seat 3 and can pass through a reinforcing rib line 1, a chute 32 is formed in the limiting seat 3 and communicates the upper and lower through holes, the chute 32 is longitudinally arranged along the through holes, gaps passing through the reinforcing rib line 1 are formed in the upper and lower ends of the chute 32, the reinforcing rib line 1 passes through the through holes and vertically passes through the gaps in the upper and lower end surfaces of the chute 32, and a positioning block 2 is installed in the chute 32 and can slide up and down by being pulled by the reinforcing rib line 1. When the reinforcing rib wire 1 is pulled upwards, the positioning block 2 moves upwards and pushes against the top wall of the sliding groove 32 to provide supporting force for the limiting seat 3. The positioning block 2 can be hidden in the sliding groove by arranging the sliding groove 32 in the limiting seat 3, so that foreign matters are prevented from being clamped in. And the appearance is more concise and beautiful.

In

embodiments

1 and 3, when the screen is folded, the two adjacent display units 51 are folded inwards and the two adjacent display units 51 are folded outwards, and the required bending length of the steel wire is automatically supplied by the folded steel wire when the two adjacent display units are folded outwards, so that smooth folding is automatically ensured.

As shown in fig. 7 and fig. 8, which specifically show the schematic diagrams of the folded state of the screen according to the third embodiment, when the screen is folded, the positioning blocks 2 of the two display units 51 folded inwards and the two display units 51 folded outwards are located at different positions in the sliding groove, so as to ensure smooth folding. As shown in fig. 8, the positioning block 2 of the uppermost display unit is positioned in the middle of the slide groove 32, and the reinforcing wires are automatically supplied to the middle display unit. In the folding process of the middle and the lowest display unit, the positioning block 2 of the display unit positioned in the middle automatically slides to the lower end of the sliding groove 32, and the positioning block 2 of the lowest display unit automatically slides to the upper end of the sliding groove 32, so that the reinforcing steel wires for providing allowance for the outward folding of the two display units are provided, and the smooth folding is automatically ensured.

In embodiment 2, when the screen is folded, the reinforcing steel wire is released by the lifting device, so that the folding action of the screen can be prevented from being influenced.

As shown in fig. 9, in embodiment 3, the reinforcing bead wire 1 may be formed by fastening a plurality of sub reinforcing bead wires 12 end to end for easy installation, the fastening seats 13 are provided at the ends of the sub reinforcing bead wires, and the fastening seats 13 at the ends of two sub reinforcing bead wires 12 are fastened together to form a positioning block 2.

The material of the rib line can be selected from steel wires, the buckling seats at the head and the tail of the sub-reinforcing steel wires are in a cuboid shape, and one side of each buckling seat is provided with a semicircular notch. During the lock joint, the semicircular notch on the buckling seat 13 of the sub reinforcing steel wire positioned below and the steel wire part of the sub reinforcing steel wire positioned above are buckled, the semicircular notch on the buckling seat 13 of the sub reinforcing steel wire positioned above and the steel wire part of the sub reinforcing steel wire positioned below are buckled, so that the buckling seats are overlapped up and down to form the positioning block 2, and therefore the reinforcing rib wire is convenient to install and can be limited by the sliding groove when being applied to the third embodiment. And this kind of mode makes the surplus of strengthening the steel wire become many, also can the split strengthening the steel wire when the screen is folding, and the lock joint seat at sub-strengthening the steel wire both ends still is located the spout simultaneously, and is also more convenient during the installation.

One specific embodiment of the pulling device 4 includes: a lifting plate 41, a lifting steel wire 42, a wire reel and a motor. The lifting plate 41 is connected with two lifting steel wires 42 to keep the lifting plate 41 horizontal, and meanwhile, the lifting plate 41 is transversely connected with the top ends of all the reinforcing rib lines 1, so that each reinforcing rib line 1 is stressed uniformly and has consistent height. The motor and the steel wire reel are arranged on the support frame 6, the motor can drive the steel wire reel to tighten and release the lifting steel wire, and the lifting plate is driven to move upwards or downwards, namely the reinforcing rib wire is tensioned upwards or released downwards.

The invention also provides a display device which comprises a folding screen and the tensile structure. The tensile structure enables the folding screen to be stressed uniformly when being unfolded, and damage is prevented.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A tensile structure for improving stability of a folded screen, comprising: the foldable screen comprises a plurality of reinforcing rib lines which are arranged along the longitudinal direction on the back of the foldable screen in a tight attaching mode, a lifting device which is connected with the tops of the reinforcing rib lines and can upwards pull the reinforcing rib lines is arranged, a plurality of positioning blocks are arranged on each reinforcing rib line, a plurality of limiting seats matched with the positioning blocks are arranged on the back of the foldable screen, and when the reinforcing rib lines are upwards pulled through the lifting device when the foldable screen is unfolded, the positioning blocks are matched with the limiting seats to provide upwards supporting force for the foldable screen.

2. The tensile structure for improving the stability of the foldable screen as claimed in claim 1, wherein the foldable screen is formed by a plurality of display units hinged up and down, a plurality of limiting seats are transversely arranged on the back of each display unit at intervals, and one positioning block on the reinforcing rib corresponds to one limiting seat.

3. The structure of claim 1, wherein a sliding groove is formed in the limiting seat for allowing the positioning block to slide up and down, and the positioning block is mounted in the sliding groove.

4. The structure of claim 1, wherein the positioning block is located below the corresponding limiting seat, and the positioning block abuts against the bottom surface of the limiting seat when the reinforcing rib is pulled upwards.

5. A tensile structure for improving the stability of a folded screen according to claim 1, wherein a secondary reinforcing rib line is connected between the positioning block and the limiting seat, and the secondary reinforcing rib line is tightened when the reinforcing rib line is pulled upwards.

6. A tensile structure for improving the stability of a folded screen according to claim 5, wherein the secondary reinforcing rib line is fixed on the limiting seat by a screw.

7. A tensile structure for improving the stability of a foldable screen as claimed in claim 3, wherein each of said reinforcing rib lines is formed by fastening a plurality of said sub reinforcing rib lines end to end, the ends of said sub reinforcing rib lines are provided with fastening seats, and the fastening seats of two said sub reinforcing rib lines are fastened together to form a positioning block.

8. A tension resistant structure for improving stability of a folded screen as claimed in claim 1, wherein the lifting means comprises: the lifting plate is transversely connected with the top ends of all the reinforcing rib wires, the lifting steel wires of the lifting plate are connected, and the motor is arranged on the upper portion of the lifting plate and drives the steel wire winding drum to rotate to tighten or release the lifting steel wires.

9. A tensile structure for improving stability of a folded screen according to claim 1, wherein the reinforcing rib lines are steel wires.

10. A display device comprising a foldable screen, further comprising a tensile structure according to any of claims 1 to 9.