CN214700173U - Folding screen with automatic tray lifting function - Google Patents
Folding screen with automatic tray lifting function Download PDFInfo
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- CN214700173U CN214700173U CN202023156485.3U CN202023156485U CN214700173U CN 214700173 U CN214700173 U CN 214700173U CN 202023156485 U CN202023156485 U CN 202023156485U CN 214700173 U CN214700173 U CN 214700173U
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Abstract
The utility model discloses an automatic folding screen that tray goes up and down, include: the foldable screen assembly comprises a support frame, a foldable screen assembly, a tray and a power mechanism, wherein the top of the foldable screen assembly is hung on the support frame; folding screen assembly contains a plurality of screen units that from top to bottom arrange, and the edge flexonics of two adjacent screen units folds the screen assembly gradually and stacks on the tray when the tray rises, and folding screen assembly expandes gradually when the tray descends. The utility model discloses a set up the tray in the below of folding screen subassembly, utilize the distance between the elevating movement control tray of tray and the support frame, when apart from the grow, folding screen subassembly expandes by oneself under the effect of gravity, when the distance diminishes, folding screen subassembly stacks on the tray, power unit only needs the motion of drive tray can realize the expansion or folding of folding screen subassembly, and simple structure is reliable, and easily equipment is maintained.
Description
Technical Field
The utility model relates to a display device technical field especially relates to folding screen that automatic tray goes up and down.
Background
With the continuous progress of science and technology, the foldable screen has been widely used in daily life, the foldable screen in the market at present is generally formed by flexibly connecting a plurality of screen units, the size of the foldable screen can be flexibly designed, a large-sized foldable screen is generally used in an outdoor environment to display advertisements or videos, and the design of a driving structure of the foldable screen is particularly important because the foldable screen needs to be unfolded or folded according to the use condition.
The prior art has a foldable screen capable of controlling the folding or unfolding state, the foldable screen is driven to unfold from top to bottom by using structures such as a lead screw, a nut and a track, the driving structure has the advantages of multiple parts, low reliability, high cost, high assembly difficulty and difficult maintenance after failure.
Therefore, how to design a foldable screen with a simple and reliable structure is an urgent technical problem to be solved in the industry.
SUMMERY OF THE UTILITY MODEL
In order to solve the defect that drive structure is complicated among the prior art, the reliability is low, the utility model provides an automatic folding screen that tray goes up and down, this folding screen is folding or expand along with the elevating movement of tray, and drive simple structure is reliable and with low costs.
The utility model discloses a technical scheme be, design the folding screen that automatic tray goes up and down, include: the foldable screen assembly comprises a support frame, a foldable screen assembly, a tray and a power mechanism, wherein the top of the foldable screen assembly is hung on the support frame; folding screen assembly contains a plurality of screen units that from top to bottom arrange, and the edge flexonics of two adjacent screen units folds the screen assembly gradually and stacks on the tray when the tray rises, and folding screen assembly expandes gradually when the tray descends.
The folding screen assembly comprises a folding screen assembly and is characterized in that signal lines and power lines which are connected with all screen units are arranged on two sides of the folding screen assembly, the signal lines and the power lines are folded along with the folding of the folding screen assembly, and wire passing cylinders which are used for the signal lines and the power lines to pass through are arranged on two sides of each screen unit. The screen unit comprises a plurality of sub-screens arranged from left to right, the sub-screens are connected with a signal line and a power line through cables, a gap for accommodating the cables is arranged between every two adjacent screen units, and the gap is located on the back of the folding screen assembly.
Preferably, the power mechanism is constituted by at least one winch assembly comprising: the device comprises at least one winch arranged on a support frame, a hanging rope wound on the winch and a motor driving the winch to rotate, wherein the bottom end of the hanging rope is fixed on a tray, and the tray ascends or descends along with the rotation of the winch.
In one embodiment, one winch assembly is arranged on each side of the tray, and the motors of all the winch assemblies work synchronously.
Preferably, the folding screen further comprises: the detection device is used for detecting the height of the tray, and the working state of the power mechanism is controlled by the detection device.
Preferably, the detection means comprises: the tray is arranged on the upper limit detection device, the upper limit detection device is used for detecting the position of the tray, the lower limit detection device is used for detecting the position of the tray, and the upper limit detection device is used for detecting the position of the tray.
Preferably, when the number of the upper limit detection devices is more than two, the upper limit detection devices are connected in series or in parallel; and/or when the number of the lower limit detection devices is more than two, the lower limit detection devices are connected in series or in parallel.
In one embodiment, the upper limit detection device includes: the tray ascends until the collision block touches the upper limit switch, and stops moving. The lower limit detection device includes: the lower limit switch fixedly mounted at the bottom of the tray and the connecting rope connected between the bottom of the folding screen assembly and the lower limit switch are fixedly mounted, and the tray descends to the connecting rope to pull the lower limit switch to stop moving.
Compared with the prior art, the utility model discloses a set up the tray in the below of folding screen subassembly, utilize the distance between the elevating movement control tray of tray and the support frame, when the distance grow, folding screen subassembly expandes by oneself under the effect of gravity, when the distance diminishes, folding screen subassembly stacks on the tray, power unit only needs the expansion or the folding that folding screen subassembly can be realized to the drive tray motion, and simple structure is reliable, and easily the equipment is maintained.
Drawings
The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings, in which:
FIG. 1 is a schematic back view of a folded screen assembly of the present invention in one half;
FIG. 2 is a schematic front view of a folded screen assembly of the present invention in half;
FIG. 3 is a schematic view of the back side of the foldable screen assembly of the present invention
FIG. 4 is a schematic front view of the foldable screen assembly of the present invention fully extended;
FIG. 5 is a schematic bottom view of the foldable screen assembly of the present invention fully stowed;
fig. 6 is a schematic top view of the foldable screen assembly in an embodiment of the present invention fully collapsed;
FIG. 7 is a schematic top view of another embodiment of the present invention with the folding screen assembly fully stowed;
FIG. 8 is an enlarged schematic view at A in FIG. 5;
FIG. 9 is an enlarged schematic view at B in FIG. 5;
fig. 10 is an enlarged schematic view at C in fig. 3.
Detailed Description
As shown in fig. 1 and 2, the utility model provides a folding screen, include: support frame 1, folding screen subassembly 2, tray 3 and power unit, support frame 1 can be fixed on structures such as wall or roof, support frame 1 bears the weight of whole folding screen, folding screen subassembly 2's top is fixed with fixed plate 4, fixed plate 4 hangs on support frame 1 through a plurality of fixed ropes 5, tray 3 is located folding screen subassembly 2's below, by power unit drive 3 lifting movement of tray, the elevating movement through tray 3 realizes folding screen subassembly 2's folding or expansion.
Specifically, the foldable screen assembly 2 includes a plurality of screen units 21 arranged from top to bottom, each screen unit 21 is composed of a plurality of sub-screens arranged from left to right, the sub-screens are LED screens, edges of two adjacent screen units 21 are flexibly connected, and the flexible connection is performed in various manners, for example, the edges of two adjacent screen units 21 are connected through a steel wire, a hinge or a hinge, so that two adjacent screen units 21 can be folded at the flexible connection. When tray 3 rose, the distance between tray 3 and the support frame 1 became littleer, and folding screen subassembly 2's screen unit 21 stacks gradually on tray 3, and when tray 3 descended, the distance grow between tray 3 and the support frame 1, folding screen subassembly 2's screen unit 21 expandes by oneself under the action of gravity, the utility model discloses a folding screen only need drive tray 3 motion can realize the expansion or folding of folding screen subassembly 2, spare part is few, the reliability is high.
As shown in fig. 1 to 4, the both sides of folding screen subassembly 2 are equipped with the signal line and the power cord of connecting all screen units 21, signal line and power cord are the flexible cable, the cable is folding along with folding screen subassembly 2, in order to make the cable of folding screen subassembly 2 both sides cleaner and tidier, the left and right sides of every screen unit 21 all designs the line section of thick bamboo that crosses that is used for the cable to pass, the cable is retrained in crossing the line section of thick bamboo, the hook can not appear, winding condition, guarantee that folding of folding screen subassembly 2 expandes smoothly unimpededly. An electric cabinet 6 is respectively installed to the top both sides of support frame 1, and signal line and power cord are drawn forth from electric cabinet 6, and the sub-screen passes through cable connection signal line and power cord, is equipped with gap 22 between two adjacent screen unit 21 from top to bottom, and gap 22 is located the back of screen unit 21, and the cable of sub-screen holds in this gap 22, and folding screen subassembly 2 walks the line and levels, and does not influence the positive shadow effect of seeing of folding screen subassembly 2.
Preferably, the power mechanism is constituted by at least one winch assembly 7, the winch assembly 7 comprising: the tray comprises at least one winch 71, a hanging rope 72 wound on the winch 71 and a motor 73 driving the winch 71 to rotate, wherein the winch 71 and the motor 73 are both fixed on the support frame 1, the bottom end of the hanging rope 72 is fixed on the tray 3, the tray 3 gradually descends when the hanging rope 72 is released by rotating the winch 71, and the tray 3 gradually ascends when the hanging rope 72 is retracted by rotating the winch 3. It should be noted that, when the power mechanism has more than two winch assemblies 7, the motors 73 of all the winch assemblies 7 work synchronously to ensure that the tray 3 is kept horizontal all the time during the lifting process.
The utility model provides an in the embodiment, tray 3's both sides respectively are equipped with a capstan winch subassembly 7, are equipped with two in the capstan winch subassembly 7 and hang rope 72, and tray 3's both sides design is used for wearing to establish the fixed hangers that hang rope 72. The winch assembly 7 has various structures, for example, as shown in fig. 1 to 5, the winch assembly 7 is provided with only one winch 71 and one motor 73, two rope grooves are formed at intervals on the winch 71, two hanging ropes 72 are respectively wound in the corresponding rope grooves, and the winch 71 is driven to rotate by the motor 73, so that the tray 3 is lifted and lowered. For another example, as shown in fig. 6, the winch assembly 7 is provided with two independent winches 71 and a motor 73, the motor 73 is a double-headed motor, two hanging ropes 72 are respectively wound on the corresponding winches 71, and the two winches 71 are driven to rotate by the double-headed motor, so that the tray 3 is lifted. For another example, as shown in fig. 7, the winch assembly 7 is provided with two winches 71 and a motor 73, the motor 73 is a reel motor, two hanging ropes 72 are respectively wound on the corresponding winches 71, and the two winches 71 are driven to rotate by the reel motor. It should be noted that, when the width of the folding screen assembly 2 is very wide, the winch assembly 7 can be added in the middle, and a plurality of winch assemblies 7 control the lifting synchronously.
Further, in order to improve the automation degree of unfolding or folding the folding screen, the folding screen further comprises: a detection device for detecting the height of tray 3, the operating condition of power unit is controlled by detection device, and detection device includes: the foldable screen assembly comprises at least one upper limiting detection device and at least one lower limiting detection device, wherein the upper limiting detection device sends a stop signal to the power mechanism when the tray 3 rises to the upper limiting position, the power mechanism stops rotating to enable the tray 3 to be kept at the upper limiting position, the topmost screen unit 21 in the foldable screen assembly is in a suspended state at the moment, the rest screen units 21 are stacked on the tray 3, the lower limiting detection device sends a stop signal to the power mechanism when the tray 3 falls to the lower limiting position, the power mechanism stops rotating to enable the tray 3 to be kept at the lower limiting position, all screen units in the foldable screen assembly are in the suspended state, and the whole foldable screen assembly is unfolded completely.
The number of the upper limit detection devices and the lower limit detection devices can be designed to be multiple in order to improve detection accuracy, when the number of the upper limit detection devices is more than two, the upper limit detection devices are connected in series or in parallel, if all the upper limit detection devices are connected in series, all the upper limit detection devices send stop signals, the power mechanism stops moving, and if all the upper limit detection devices are connected in parallel, any one upper limit detection device sends stop signals, the power mechanism stops moving. Similarly, when the number of the lower limit detection devices is more than two, the lower limit detection devices are connected in series or in parallel, the control logic of the lower limit detection devices is the same as that of the upper limit detection devices, if all the lower limit detection devices are connected in series, all the lower limit detection devices send stop signals, the power mechanism stops moving, and if all the lower limit detection devices are connected in parallel, any one lower limit detection device sends stop signals, the power mechanism stops moving.
As shown in fig. 8, in an embodiment of the present invention, the upper limit detection device includes: the upper limit switch 8 and the collision block 9 are arranged on the support frame 1 or the winch 71, the upper limit switch 8 is fixed on the mounting plate, the collision block 9 is fixed on the hanging rope 72, and the collision block 9 is positioned right below the upper limit switch 8. When the winch 71 rotates to retract the hanging rope 72, the hanging rope 72 pulls the tray 3 to ascend, the collision block 9 moves along with the tray 3, after the collision block 9 collides with the upper limit switch 8 above the collision block, the upper limit switch 8 is triggered to send a stop signal to the motor 73 connected with the collision block, and the motor 73 stops rotating to enable the tray 3 to be kept at the upper limit position.
As shown in fig. 9 and 10, the lower limit detection device includes: lower limit switch 10, lower limit switch 10 fixed mounting is in the bottom of tray 3, and the bearing strip is installed to the bottom of folding screen subassembly 2, is connected with between lower limit switch 10 and the bearing strip and connects rope 11, is equipped with the through-hole that is used for connecting rope 11 and passes on the tray 3. When the winch 71 rotates to release the hanging rope 72, the tray 3 descends under the action of gravity, after the folding screen assembly 2 is completely unfolded, the tray 3 continues to move downwards, the bearing strip keeps still, the connecting rope 11 is gradually tensioned to pull the lower limit switch 10, the lower limit switch 10 is triggered to send a stop signal to the motor 73 connected with the lower limit switch, and the motor 73 stops rotating to enable the tray 3 to be kept at the lower limit position.
Each motor 73 is at least provided with an upper limit switch 8 and a lower limit switch 10, each upper limit switch 8 is independently provided with a collision block 9, and when more than two upper limit switches 8 exist, all collision blocks 9 are ensured to collide with the upper limit switches 8 when the tray 3 horizontally rises to the upper limit position. Similarly, each lower limit switch 10 is individually configured with a connecting rope 11, and when there are more than two lower limit switches 10, all the connecting ropes 11 pull the lower limit switches 10 when the tray 3 is horizontally lowered to the lower limit position.
The utility model discloses can realize expansion or folding of folding screen subassembly, simple structure is reliable, and easily the equipment is maintained, and the fault rate is low moreover, long service life.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Folding screen that automatic tray goes up and down, its characterized in that includes: the foldable screen comprises a support frame, a foldable screen assembly, a tray and a power mechanism, wherein the top of the foldable screen assembly is hung on the support frame;
folding screen subassembly contains a plurality of screen units that from top to bottom arrange, adjacent two the edge flexonics of screen unit, when the tray rises folding screen subassembly stacks gradually on the tray, when the tray descends folding screen subassembly expandes gradually.
2. A folding screen according to claim 1, characterised in that said power mechanism is constituted by at least one winch assembly comprising: the tray comprises at least one winch arranged on the support frame, a hanging rope wound on the winch and a motor driving the winch to rotate, wherein the bottom end of the hanging rope is fixed on the tray, and the tray ascends or descends along with the rotation of the winch.
3. A folding screen according to claim 2 wherein one of said winch assemblies is provided on each side of said tray, the motors of all of said winch assemblies operating in synchronism.
4. A folding screen according to claim 1 further comprising: and the detection device is used for detecting the height of the tray, and the working state of the power mechanism is controlled by the detection device.
5. A folding screen according to claim 4 wherein said detection means comprises: the tray is arranged on the upper limiting detection device, the power mechanism is controlled by the lower limiting detection device to stop rotating when the tray rises to the upper limiting position, and the tray falls to the lower limiting position.
6. The folding screen of claim 5, wherein when the number of the upper limit detection means is two or more, the upper limit detection means are connected in series or in parallel; and/or when the number of the lower limit detection devices is more than two, the lower limit detection devices are connected in series or in parallel.
7. A folding screen according to claim 5 wherein said upper limit detection means comprises: the tray rises to the point that the collision block touches the upper limit switch and stops moving.
8. A folding screen according to claim 5 wherein said lower limit detection means comprises: the lower limit switch is fixedly mounted at the bottom of the tray, and the connecting rope is connected between the bottom of the folding screen assembly and the lower limit switch, and the tray descends to the position, where the connecting rope pulls the lower limit switch, and stops moving.
9. The folding screen of any one of claims 1 to 8, wherein signal lines and power lines connecting all the screen units are provided on both sides of the folding screen assembly, the signal lines and the power lines are folded with the folding of the folding screen assembly, and a wire passing tube for passing the signal lines and the power lines is provided on both sides of each of the screen units.
10. The folding screen of claim 9, wherein the screen unit is composed of a plurality of sub-screens arranged from left to right, the sub-screens are connected to the signal line and the power line through cables, a gap for accommodating the cables is provided between two adjacent screen units, and the gap is located on the back of the folding screen assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023156485.3U CN214700173U (en) | 2020-12-24 | 2020-12-24 | Folding screen with automatic tray lifting function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023156485.3U CN214700173U (en) | 2020-12-24 | 2020-12-24 | Folding screen with automatic tray lifting function |
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| CN214700173U true CN214700173U (en) | 2021-11-12 |
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| CN202023156485.3U Active CN214700173U (en) | 2020-12-24 | 2020-12-24 | Folding screen with automatic tray lifting function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594531A (en) * | 2020-12-24 | 2021-04-02 | 深圳市维世科技有限公司 | Folding screen with automatic tray lifting function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594531A (en) * | 2020-12-24 | 2021-04-02 | 深圳市维世科技有限公司 | Folding screen with automatic tray lifting function |
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