CN102402912A

CN102402912A - Concealed type light-emitting diode (LED) curtain display screen

Info

Publication number: CN102402912A
Application number: CN2011104577461A
Authority: CN
Inventors: 陈雷
Original assignee: NANJING LOPU CO Ltd
Current assignee: NANJING LOPU CO Ltd
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2012-04-04
Anticipated expiration: 2031-12-30
Also published as: CN102402912B

Abstract

The invention relates to a concealed type light-emitting diode (LED) curtain display screen, and belongs to the technical field of LED display. The display screen comprises a group of LED light bars which are parallel to each other, and also comprises a telescopic bracket and a drive device, wherein the telescopic bracket consists of a first group of parallel rods which are parallel to each other, and a second group of parallel rods which are respectively hinged with the first group of the parallel rods in a crossed way; a group of linkage parallel four-rod mechanisms are formed by hinging the cross points of the first group of the parallel rods and the second group of the parallel rods; the group of the LED light bars are respectively arranged on two opposite hinge points in turn; and at least one of the parallel rods is in transmission connection with the drive device. The concealed type LED curtain display screen can be folded when not used so as to fulfill the aim of avoiding light ray sheltering.

Description

Hidden-type LED curtain wall display screen

Technical field

The present invention relates to a kind of LED display, especially a kind of hidden-type LED curtain wall display screen belongs to LED display technique field.

Background technology

In recent years, because the changeability of LED both can satisfy the requirement of building brightening, can become emerging information release vehicle again, so LED curtain wall display screen is applied rapidly.Yet existing LED curtain wall display screen can not shut out the light when not using by day, influences the inner daylighting of building.

Retrieval is found; Application number is that 200910035927.8,200920044426.1 one Chinese patent application discloses the Scroll LED display respectively, though this display screen can draw in through curling in time spent not owing to need FPC; Therefore manufacturing process is complicated, and damages easily.

In addition; Application number is that 201110236336.4 Chinese invention patent application discloses a kind of light bar type LED display, comprises frame and at least one screen unit, screen draw off gear and screen folding and unfolding control circuit, and screen unit comprises that complex root lamp bar and 2 vertically arrange and be fixed on the guide rail on the frame; The major axis lateral arrangement of lamp bar; The lamp bar comprises 1 fixed light bar, and remaining lamp bar is the extension light bar, and the fixed light bar is fixed on the top of guide rail; The extension light bar is arranged in the below of fixed light bar abreast, is led by described guide rail in two ends; The extension light bar of below is driven by the screen draw off gear, and described extension light bar comprises telescoping mechanism, connects through telescoping mechanism between adjacent lamp bar.

This light bar type LED display has to be convenient to folding and unfolding, when do not need display image daytime, can to draw, no longer block the window of buildings easily in, can not to influence indoor advantages such as natural lighting; But still there is following problem in this display screen: the mobile dependence rail guidance of (1) LED lamp bar, and add guiding mechanism and prevent lamp bar sideslip, also be provided with parts such as pulley, traction rope; Structure is comparatively complicated; Cost is higher, and processing and the equal inconvenience of installation, more is unfavorable for maintenance and maintenance; (2) guide rail itself still can block the inner visual field of building, can't thoroughly avoid the influence to building daylighting; (3) after this display screen drew in, the extension light bar all was deposited in fixed light bar below, can't accomplish hidden fully; (4) because many, the complex structure of parts than easy fault, is more suitable in indoor use under outdoor erosion by wind and rain, its range of application is restricted.

Summary of the invention

The objective of the invention is to: to the problem that above-mentioned prior art exists, propose a kind of not time spent can draw in, and hidden-type LED curtain wall display screen simple in structure, as to need not guide rail, thereby in that the time spent can not avoided shutting out the light.

In order to reach above purpose, technical scheme of the present invention is following:

A kind of hidden-type LED curtain wall display screen; Comprise one group of LED lamp bar that is parallel to each other; Also comprise expansion bracket and drive unit; Said expansion bracket is by the first group of parallel rod that is parallel to each other and constitute with second group of parallel rod of said first group of parallel rod cross-articulation respectively; The hinged back of said first group of parallel rod and second group of each point of crossing of parallel rod forms one group of interlock parallel four-bar linkage, and said one group of LED lamp bar is installed in respectively on the two relative pin joints according to the order of sequence, and one of said at least parallel rod is in transmission connection with said drive unit.

When one of drive device drives parallel rod moves; Because parallel four-bar linkage has relative connecting rod and remains parallel characteristic; Therefore each parallel rod will be synchronized with the movement thereupon; Thereby be separated from each other or near mode realized the stretching, extension or the gathering of expansion bracket, and then make that being installed in lamp bar on the pin joint stretches with the motion of pin joint or draw in.Be understood that the location status that can LED lamp bar is in stretch to launch by drive unit during use, and time spent not draw it in, can reach and avoid the purpose that shuts out the light.

The present invention further perfect technical scheme is:

Also has hidden plate; The symmetria bilateralis of said hidden plate is equipped with expansion bracket; The initial pin joint of said two expansion brackets is hinged in hidden plate, and said drive unit is the motor that is placed in the hidden plate, and the parallel rod at said motor and said two initial pin joint places is in transmission connection.

Like this, can be stretched by hidden plate both sides through Electric Machine Control LED lamp bar easily during use, the time spent then can not draw LED lamp bar in the hidden plate in, promptly avoids shutting out the light, and keeps outward appearance carefully and neatly done again, can also be by hidden plate protection LED lamp bar.Obviously, the symmetrical placement structure helps the stress equalization of total system, helps its reliably working.

Description of drawings

Below in conjunction with accompanying drawing the present invention is further described.

Fig. 1 is the extended configuration structural representation of one embodiment of the invention.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the rear view of Fig. 1.

Fig. 4 is the stereographic map of Fig. 1.

Fig. 5 is the rounding state structural representation of Fig. 1, and A is positive, and B is the back side.

Embodiment

The hidden-type LED curtain wall display screen basic structure of present embodiment shown in Fig. 1 to 5, comprise one group of vertical LED lamp bar 1 that is parallel to each other, vertically extending hidden plate 2, two symmetrical placement expansion bracket 3 and as the motor 4 of drive unit.Expansion bracket 3 is by the first group of parallel rod 3-1 that is parallel to each other and constitute with second group of parallel rod 3-2 of first group of parallel rod cross-articulation respectively, and the hinged back of first group of parallel rod 3-1 and second group of each point of crossing of parallel rod 3-2 forms the expansion bracket 3 of one group of essence for the interlock parallel four-bar linkage.Each LED lamp bar 1 is installed in respectively on relative upper and lower two pin joints according to the order of sequence.Through the initial pin joint of hinged two expansion brackets of hinged bearing pin 3-3 difference, the parallel rod at this two pin joints place is connected with intermeshing driven wheel 3-4,3-5 respectively in the hidden plate 2.The motor 4 that is placed in the hidden plate 2 is in transmission connection through one of pinion and rack and two driven wheels 3-5.

Particularly; Be provided with vertical track 21 in the hidden plate 2, the tooth bar 22 that constitutes moving sets with it is housed in the track 21, the output shaft 41 of motor 4 is fixedly connected with transmission gear 42 through reductor 43; Transmission gear 42 meshes with the bottom of tooth bar 22, the top of tooth bar 22 and gear 3-5 engagement.In addition, also be provided with vertical LED lamp bar on the hidden plate 2.

During use, drive two expansion brackets 3 by motor 4 and stretch, each lamp bar 1 is released hidden plate 2, form the display screen of extended configuration; Time spent drives two expansion brackets 3 by motor 4 and draws in, and is unhidden behind the hidden plate 2 of each lamp bar 1 income, realizes avoiding the purpose that shuts out the light.

Compared with prior art, the present embodiment display screen has the following advantages:

(1) only depend on by motor-driven expansion bracket and can realize moving of LED lamp bar, entire display screen is simple in structure, is easy to processing and installs, and be beneficial to maintenance and maintenance; The stretching, extension of free control display screen and gathering according to circumstances after the installation, very dexterous.

(2) need not guide rail, after drawing all parts of back in and all being positioned at hidden plate, can realize hiddenly fully, can avoid fully that daylighting impacts to building.

(3) parts are few, simple in structure, maintain very conveniently, indoor, outdoor all can use, and range of application is wider.

Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.

Claims

1. hidden-type LED curtain wall display screen; Comprise one group of LED lamp bar that is parallel to each other; It is characterized in that: also comprise expansion bracket and drive unit; Said expansion bracket is by the first group of parallel rod that is parallel to each other and constitute with second group of parallel rod of said first group of parallel rod cross-articulation respectively; The hinged back of said first group of parallel rod and second group of each point of crossing of parallel rod forms one group of interlock parallel four-bar linkage, and said one group of LED lamp bar is installed in respectively on the two relative pin joints according to the order of sequence, and one of said at least parallel rod is in transmission connection with said drive unit.

2. hidden-type LED curtain wall display screen according to claim 1; It is characterized in that: also have hidden plate; The symmetria bilateralis of said hidden plate is equipped with expansion bracket; The initial pin joint of said two expansion brackets is hinged in hidden plate, and said drive unit is the motor that is placed in the hidden plate, and the parallel rod at said motor and said two initial pin joint places is in transmission connection.

3. hidden-type LED curtain wall display screen according to claim 2; It is characterized in that: the initial pin joint of said two expansion brackets is fixedly connected respectively with intermeshing two driven wheels, and said motor is in transmission connection through one of pinion and rack and two driven wheels.

4. hidden-type LED curtain wall display screen according to claim 3; It is characterized in that: be provided with track in the said hidden plate; The tooth bar that constitutes moving sets with it is housed in the said track, and the output shaft of said motor is through the engagement of driving cog wheel and rack, and said tooth bar also meshes with one of two driven wheels.

5. hidden-type LED curtain wall display screen according to claim 4, it is characterized in that: the output shaft of said motor is fixedly connected with transmission gear through reductor.