CN210954597U

CN210954597U - Curtain lifting device

Info

Publication number: CN210954597U
Application number: CN201922272473.8U
Authority: CN
Inventors: 钟波; 肖适; 王鑫; 吴晓龙; 付朝忠
Original assignee: Chengdu Jimi Technology Co Ltd
Current assignee: Chengdu Jimi Technology Co Ltd; Chengdu XGIMI Technology Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-07-07
Anticipated expiration: 2029-12-17

Abstract

The application relates to a curtain lifting device, and belongs to the technical field of curtains. Curtain elevating gear includes: a curtain; a base; the winding and unwinding mechanism comprises a scroll and a winding and unwinding driving device, the scroll is arranged on the base, the lower end of the curtain is wound on the scroll, and the winding and unwinding driving device is used for driving the scroll to rotate; and the curtain lifting mechanism comprises two folding connecting rod assemblies, each folding connecting rod assembly comprises an upper connecting rod, a lower connecting rod and a telescopic driving device, the upper end of each upper connecting rod is hinged with the upper end of the curtain, the lower end of each upper connecting rod is hinged with the upper end of each lower connecting rod, the lower end of each lower connecting rod is hinged with the base, one end of each telescopic driving device is hinged with the upper connecting rod, and the other end of each telescopic driving device is hinged with the lower connecting rod. This curtain elevating gear can realize the rise or the decline of curtain, when not using the curtain, is convenient for accomodate the curtain, prevents curtain deposition or damage, has improved the life of curtain.

Description

Curtain lifting device

Technical Field

The application relates to the technical field of curtains, in particular to a curtain lifting device.

Background

Projection curtain (for short curtain) generally relies on supporting mechanism to prop up, and current curtain is mostly fixed form, installs in the assigned position, accumulates the dust easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a purpose is to above-mentioned problem, provides a curtain elevating gear, can realize the rise or the descending of curtain, when not using the curtain, is convenient for accomodate the curtain, prevents that the curtain deposition is grey or damages, has improved the life of curtain.

According to one aspect of this application embodiment's curtain elevating gear, include: a curtain; a base; the winding and unwinding mechanism comprises a scroll and a winding and unwinding driving device, the scroll is arranged on the base, the lower end of the curtain is wound on the scroll, and the winding and unwinding driving device is used for driving the scroll to rotate; and the curtain lifting mechanism comprises two folding connecting rod assemblies, each folding connecting rod assembly comprises an upper connecting rod, a lower connecting rod and a telescopic driving device, the upper end of each upper connecting rod is hinged with the upper end of the curtain, the lower end of each upper connecting rod is hinged with the upper end of each lower connecting rod, the lower end of each lower connecting rod is hinged with the base, one end of each telescopic driving device is hinged with the upper connecting rod, and the other end of each telescopic driving device is hinged with the lower connecting rod.

According to the curtain lifting device, the unwinding and winding mechanisms are matched with the curtain lifting mechanism, so that unwinding and lifting of the curtain or winding and falling of the curtain are realized; when the curtain is used, the curtain can be supported, and when the curtain is not used, the curtain can be stored, so that the curtain is flexible to store; this curtain elevating gear can effectively prevent the curtain deposition to be convenient for realize the protection to the curtain, improved the life of curtain. In addition, the movable base can realize the movement of the curtain and is flexible to use.

In addition, the curtain lifting device according to the embodiment of the application also has the following additional technical characteristics:

according to some embodiments of the application, the telescopic drive is an electric push rod.

In the above embodiment, the upper connecting rod and the lower connecting rod are unfolded or contracted through the electric push rod, so that the curtain can be conveniently supported or stored by the upper connecting rod and the lower connecting rod, the flexibility of lifting or falling of the curtain is improved, and the control precision is high.

In some embodiments of this application, curtain elevating gear still includes the backup pad, and the backup pad is installed in the base, and the backup pad is parallel with the plane of rotation of lower connecting rod, has seted up the spout in the backup pad, is provided with the slider on the lower connecting rod, and the slider cooperates with the spout, and when the lower connecting rod rotated, the slider removed along the spout.

In the above embodiment, the sliding groove on the supporting plate is matched with the sliding block of the lower connecting rod, so that the lower connecting rod can be conveniently unfolded or contracted relative to the upper connecting rod to play a role in guiding and supporting.

Optionally, a limiting portion is arranged on the sliding block and used for limiting the sliding block to be separated from the sliding groove along a direction perpendicular to the supporting plate.

In the above embodiment, the slider is prevented from being separated from the slide groove in a direction perpendicular to the support plate by the engagement of the stopper portion with the support plate.

Optionally, the slider is a roller.

In the above embodiment, the arrangement of the roller can reduce the friction force of the roller moving relative to the sliding groove, and the roller can move flexibly along the sliding groove.

In some embodiments of the present application, the curtain lifting device further comprises a roller set, the roller set is mounted to the base, and the curtain passes through the roller set.

In the above embodiment, through receiving unwinding mechanism and crossing the roller set cooperation, realize the tensioning to the curtain, the lift of the curtain of being convenient for is stable.

According to some embodiments of this application, the inside of base is provided with and holds the chamber, and the lower extreme of receiving unwinding mechanism and lower connecting rod sets up in holding the intracavity, and the base is seted up and is held the curtain export that the chamber communicates.

In the above embodiment, accomodate the lower extreme of receiving unwinding mechanism and lower connecting rod in holding the intracavity, when the curtain rolling, the curtain can be accomodate in holding the intracavity, realizes the protection to the curtain, simultaneously, has improved overall structure's appearance aesthetic property.

In some embodiments of this application, the upper end of curtain is provided with the shrouding that corresponds with the curtain export, and the shrouding is used for shutoff curtain export.

In above-mentioned embodiment, realize the sheltering from to the curtain export through the shrouding, be convenient for prevent that the dust from getting into and holding the intracavity.

According to some embodiments of the present application, the upper link and the lower link are each a tubular structure having a hollow interior.

In the above embodiment, the upper link and the lower link are both tubular mechanisms, which reduces the overall weight while ensuring strong supporting strength.

According to some embodiments of the application, the back of the curtain is provided with a heat dissipation plate.

In the above embodiment, the heat dissipation plate can conduct out heat generated by the curtain, and the service life of the curtain is prolonged.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a first view angle of a curtain lifting device according to an embodiment of the present disclosure (a curtain lifted state);

fig. 2 is a schematic structural diagram of a second view angle of the curtain lifting device according to the embodiment of the present application;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

fig. 4 is a schematic structural diagram of a third viewing angle of the curtain lifting device according to the embodiment of the present application (a curtain accommodating state);

fig. 5 is a schematic view of a curtain lifting mechanism of the curtain lifting device according to the embodiment of the present application (with a rear plate and a support plate hidden);

fig. 6 is a schematic view of a curtain storage state of the curtain lifting device according to the embodiment of the present application (with a rear plate hidden);

fig. 7 is a schematic structural diagram of a slider of the curtain lifting device according to the embodiment of the present application (with a rear plate hidden);

FIG. 8 is an enlarged view of FIG. 7 at B;

fig. 9 is a schematic structural diagram of a folding link assembly of the curtain lifting device according to the embodiment of the present application.

Icon: 100-curtain lifting device; 10-curtain; 110-sealing plate; 111-lifting lugs; 120-a heat sink; 20-a base; 210-a receiving cavity; 220-a backplane; 230-a top plate; 240-left side panel; 250-right side plate; 260-front panel; 270-a back plate; 280-curtain outlet; 31-winding and unwinding mechanism; 301-a reel; 40-curtain lifting mechanism; 41-a folding linkage assembly; 410-an upper link; 411-upper joint; 412-upper rod body; 413-upper joint; 4131-grooves; 420-lower link; 421-lower joint; 4211-bumps; 422-lower rod body; 423-lower joint; 430-telescopic driving device; 440-a slider; 450-a limiting part; 460-a threaded fastener; 50-a roller group; 60-a support plate; 610-chute.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

A curtain lifting apparatus 100 according to an embodiment of an aspect of the present application is described below with reference to the drawings.

As shown in fig. 1 and 2, a curtain lifting device 100 according to an embodiment of the present application includes: a curtain 10, a base 20, a winding and unwinding mechanism 31 (shown in fig. 3), and a curtain lifting mechanism 40.

Specifically, the curtain 10 is used for presenting images; the base 20 is used for positioning and supporting other components, and the base 20 can be a movable base 20, so that the movable base can be conveniently moved to a specified position according to the use requirement. The winding and unwinding mechanism 31 includes a winding shaft 301 and a winding and unwinding driving device (not shown), the winding shaft 301 is mounted on the base 20 and can rotate relative to the base 20, the lower end of the curtain 10 is wound on the winding shaft 301, and when the winding shaft 301 rotates, the curtain 10 can be wound or unwound. The winding and unwinding driving device provides power for winding and unwinding, and the winding and unwinding driving device is used for driving the scroll 301 to rotate so as to wind or unwind the curtain 10 by the scroll 301. The curtain lifting mechanism 40 comprises two folding connecting rod assemblies 41, and the two folding connecting rod assemblies 41 are symmetrically distributed along the width direction of the curtain 10 so as to uniformly support the curtain 10; each folding link assembly 41 includes an upper link 410, a lower link 420, and a telescopic driving device 430, wherein the upper end of the upper link 410 is hinged to the upper end of the curtain 10, the lower end of the upper link 410 is hinged to the upper end of the lower link 420, the lower end of the lower link 420 is hinged to the base 20, one end of the telescopic driving device 430 is hinged to the upper link 410, and the other end of the telescopic driving device 430 is hinged to the lower link 420. The upper link 410 and the lower link 420 support the curtain 10, and the telescopic driving device 430 operates to move the upper link 410 and the lower link 420 toward or away from each other (i.e., retract or extend) to lower or raise the curtain 10.

According to the curtain lifting device 100 of the embodiment of the application, the curtain 10 is unreeled through the reeling and unreeling mechanism 31, the curtain 10 is lifted up through the curtain lifting mechanism 40, the curtain 10 is descended through the curtain lifting mechanism 40, the curtain 10 is reeled up through the reeling and unreeling mechanism 31, and unreeling and lifting of the curtain 10 or descending and reeling of the curtain 10 are realized. When the curtain 10 is used, the curtain 10 can be supported; when the curtain 10 is not used, the curtain 10 can be contained, and the containing is flexible; this curtain elevating gear 100 can effectively prevent curtain 10 deposition to be convenient for realize the protection to curtain 10, improved curtain 10's life. When the curtain 10 needs to be moved, the base 20 can be moved to a designated position, and the use is flexible.

The structural features and the connection manner of the components of the curtain lifting device 100 according to the embodiment of the present application are described below with reference to the accompanying drawings.

The base 20 serves as a positioning support, as shown in fig. 1 and 4, the base 20 is a cabinet structure, and a receiving cavity 210 is provided inside the base 20 to receive the curtain 10 and other components. As shown in fig. 4, the base 20 is provided with a curtain outlet 280 communicated with the accommodating cavity 210, the curtain 10 can extend out of the accommodating cavity 210 through the curtain outlet 280, and the lifted curtain 10 can be accommodated back into the accommodating cavity 210 through the curtain outlet 280.

As shown in fig. 1 and 2, the base 20 is a rectangular parallelepiped structure, and includes a bottom plate 220, a top plate 230, a left side plate 240, a right side plate 250, a front plate 260, and a rear plate 270, and the bottom plate 220, the top plate 230, the left side plate 240, the right side plate 250, the front plate 260, and the rear plate 270 enclose an accommodation cavity 210. The front plate 260 is a plate facing a user, the top plate 230 is provided with a curtain outlet 280, the rear plate 270 is respectively connected with the left side plate 240, the right side plate 250, the top plate 230 and the bottom plate 220, and the rear plate 270 can be separated relative to other plates to open the accommodating cavity 210 and overhaul components in the accommodating cavity 210.

In some embodiments of the present application, as shown in fig. 1 and 4, the free end (upper end) of the curtain 10 is provided with a sealing plate 110 corresponding to the curtain outlet 280, and the sealing plate 110 seals the curtain outlet 280 when the curtain 10 is received in the accommodating cavity 210 to prevent dust deposition on the curtain 10. As shown in fig. 4, when the curtain 10 is in the storage state, the sealing plate 110 seals the curtain outlet 280, so that the surface of the base 20 is neat, the appearance is not affected, and the curtain is suitable for the indoor decoration environment.

As an optional mode of the present application, the sealing plate 110 is an aluminum alloy plate with a certain strength and a light weight, so that the overall weight is reduced as much as possible while the supporting strength is ensured. In other embodiments of the present application, the sealing plate 110 may be a plate made of other materials, as long as it has certain strength and is light in weight.

As shown in fig. 3, the winding and unwinding mechanism 31 includes a winding shaft 301 and a winding and unwinding driving device, the winding shaft 301 is mounted on the side wall (the left side plate 240 and the right side plate 250) of the base 20, the fixed end of the curtain 10 is wound on the winding shaft 301, and the winding shaft 301 can rotate relative to the base 20 to wind or unwind the curtain 10; the winding and unwinding driving device is in transmission connection with the reel 301, and is used for driving the reel 301 to rotate relative to the base 20, so as to provide power for winding or unwinding the curtain 10. As an optional mode of the application, the winding and unwinding driving device can be a motor with a self-locking function, and when the curtain 10 rises to a specified height, the motor is powered off to prevent reverse rotation. The connection of the motor to the reel 301 is a conventional transmission connection and will not be described in detail in this application.

As shown in fig. 3, a roller set 50 is further disposed in the accommodating cavity 210 of the base 20, two ends of the roller set 50 are respectively mounted on the side walls (the left side plate 240 and the right side plate 250) of the base 20, the roller set 50 is rotatably connected to the base 20, the roller set 50 includes two rollers, and the free end of the curtain 10 passes through the two rollers. When the curtain 10 is driven by the lifting assembly of the curtain 10 to rise or fall, the curtain 10 is under tension by the roller set 50, so as to prevent the curtain 10 from being damaged due to wrinkles. Through receiving unwinding mechanism 31 and crossing roller set 50 cooperation, realize the tensioning to curtain 10, the lift of the curtain 10 of being convenient for is stable.

As shown in fig. 2 and 5, the curtain lifting mechanism 40 includes two folding link assemblies 41, and the two folding link assemblies 41 are symmetrically distributed along the width direction of the curtain 10. Each folding link assembly 41 includes an upper link 410, a lower link 420, and a telescopic driving device 430, wherein the upper end of the upper link 410 is hinged to the free end of the curtain 10 (i.e., the upper end of the curtain 10), the lower end of the upper link 410 is hinged to the upper end of the lower link 420, the lower end of the lower link 420 is hinged to the base 20 (the bottom plate 220) (the lower end of the lower link 420 is located in the accommodating cavity 210), one end of the telescopic driving device 430 is hinged to the upper link 410, and the other end of the telescopic driving device 430 is hinged to the lower link 420.

As an alternative of the present application, the telescopic driving device 430 is an electric push rod, and the electric push rod is electrically connected with an external power supply. The cylinder body of the electric push rod is hinged with the lower connecting rod 420, and the telescopic rod of the electric push rod is hinged with the upper connecting rod 410, so that the upper connecting rod 410 is conveniently supported, and the upper connecting rod 410 is expanded or contracted relative to the lower connecting rod 420. The upper connecting rod 410 and the lower connecting rod 420 are unfolded or contracted through the electric push rod, so that the curtain 10 can be conveniently supported or stored by the upper connecting rod 410 and the lower connecting rod 420, the control is simple, the flexibility of lifting or descending the curtain 10 is improved, and the control precision is high. In other embodiments of the present application, the telescopic driving device 430 may also be other telescopic cylinders, such as an air cylinder, a hydraulic cylinder, etc.

In some embodiments of the present application, as shown in fig. 5, the curtain lifting device 100 further includes a supporting plate 60, the supporting plate 60 is mounted on the bottom plate 220 of the base 20, the supporting plate 60 is parallel to a rotation plane of the lower link 420, a sliding slot 610 is formed on the supporting plate 60, a sliding block 440 is disposed on the lower link 420, the sliding block 440 is engaged with the sliding slot 610, and when the lower link 420 rotates, the sliding block 440 moves along the sliding slot 610. The supporting plate 60 and the back plate 270 of the base 20 are independent parts, and the supporting plate 60 is located in the accommodating cavity 210 for guiding and supporting the sliding block 440. The slider 440 moves along the sliding groove 610 with the lower link 420, and can play a role of guiding and supporting the lower link 420. Since the lower link 420 moves relative to the base 20 by using the hinge point of the lower link 420 and the base 20 as the rotation center, as shown in fig. 6, the sliding slot 610 is an arc-shaped slot, and the center of the arc-shaped slot is located at the hinge point of the lower link 420 and the base 20. The sliding slot 610 can also restrict the movement of the lower link 420, and prevent the curtain 10 from being separated from the winding shaft 301 due to the excessive pulling of the upper link 410 on the curtain 10.

As an alternative mode of the present application, the sliding block 440 is a roller, the roller is mounted on the lower link 420 through a rotating shaft, and the roller is designed to facilitate the movement of the roller relative to the sliding groove 610 along with the movement of the lower link 420, so as to reduce the friction force of the movement.

Further, as shown in fig. 7 and 8, the sliding block 440 is provided with a limiting portion 450, and the limiting portion 450 is used for limiting the sliding block 440 to be separated from the sliding slot 610 along a direction perpendicular to the supporting plate 60. Specifically, the limiting portion 450 is a cover plate, the cover plate is mounted on a rotating shaft (not shown) for supporting the roller, the cover plate and the lower link 420 are respectively located at two sides of the supporting plate 60, and the cover plate and the rotating shaft are connected by a threaded fastener 460 (bolt), so as to prevent the roller from being separated from the sliding groove 610 in a direction perpendicular to the supporting plate 60. The cooperation of the limiting portion 450 and the roller is convenient for ensuring that the lower connecting rod 420 moves stably relative to the base 20, ensuring that the curtain 10 rises or falls stably, and preventing the curtain 10 from rising and falling.

Alternatively, as shown in fig. 9, the upper link 410 includes an upper joint 411, an upper rod 412 and an upper joint 413 connected in sequence, the upper joint 411 is located at the upper end of the upper rod 412, the upper joint 413 is located at the lower end of the upper rod 412, the lower link 420 includes a lower joint 421, a lower rod 422 and a lower joint 423 connected in sequence, the lower joint 421 is located at the upper end of the lower link 420, and the lower joint 423 is located at the lower end of the lower link 420. The lower end of the closing plate 110 is provided with a lifting lug 111 corresponding to the upper connecting rod 410, an upper joint 411 is hinged with the lifting lug 111, an upper joint 413 is hinged with a lower joint 421, and a lower joint 423 is hinged with the bottom plate 220.

In order to facilitate the articulation between the upper link 410 and the lower link 420, as shown in fig. 9, the upper joint 413 is provided with a groove 4131, the lower joint 421 is provided with a projection 4211 corresponding to the groove 4131, the projection 4211 is inserted into the groove 4131, and the upper joint 413 and the lower joint 421 are connected by a bearing.

In order to reduce the weight of the upper link 410 and the lower link 420, the upper link 410 and the lower link 420 are both hollow tubular structures, that is, the upper rod 412 and the lower rod 422 are both tubular, the upper joint 411 and the upper joint 413 are respectively inserted into the upper end and the lower end of the upper rod 412, and the lower joint 421 and the lower joint 423 are respectively inserted into the upper end and the lower end of the lower rod 422. Upper rod body 412 and lower rod body 422 may be the same size and structure, facilitating batch processing and, at the same time, facilitating replacement.

According to some embodiments of the present application, as shown in fig. 2, the back surface of the curtain 10 is provided with a plurality of heat dissipation plates 120, the plurality of heat dissipation plates 120 are distributed at intervals along the height direction of the curtain 10, and the heat dissipation plates 120 extend along the width direction of the curtain 10. The heat dissipation plate 120 can support the curtain 10 and also can dissipate heat generated by the curtain 10, thereby preventing the curtain 10 from being damaged due to overheating and prolonging the service life of the curtain 10.

As an optional mode of the present application, the heat dissipation plate 120 is made of an aluminum material with light weight and good heat dissipation effect, and has a heat dissipation effect and a supporting effect without increasing much weight. In other embodiments of the present application, the heat dissipation plate 120 may be made of other metal materials with light weight and good heat dissipation effect.

The curtain lifting device 100 according to the embodiment of the present application operates according to the following principle:

the support of the curtain 10 is realized through the upper connecting rod 410 and the lower connecting rod 420; when the curtain 10 is lifted, the winding driving device and the telescopic driving device 430 work, the scroll 301 unwinds the curtain 10, the upper connecting rod 410 is unfolded relative to the lower connecting rod 420, the lower connecting rod 420 drives the roller to move upwards along the sliding groove 610, the upper connecting rod 410 supports the curtain 10 so as to lift the curtain 10, and the winding driving device and the telescopic driving device 430 stop working until the curtain 10 is lifted to a specified position; when the curtain 10 is dropped, the rolling driving device and the telescopic driving device 430 work, the upper connecting rod 410 contracts relative to the lower connecting rod 420, the upper connecting rod 410 drives the curtain 10 to drop, the lower connecting rod 420 drives the roller to move downwards along the sliding groove 610, the roller 301 rolls the curtain 10 until the curtain 10 is completely accommodated in the accommodating cavity 210, the closing plate 110 seals the curtain outlet 280, and the rolling driving device and the telescopic driving device 430 stop working.

According to curtain elevating gear 100 of this application embodiment, can realize the stable rise or the decline of curtain 10, realize accomodating of curtain 10, be convenient for protect curtain 10, prevent curtain 10 deposition, improved curtain 10's life. Because the curtain 10 can be accomodate in the chamber 210 that holds of base 20, realize the position of curtain 10 through removing base 20 and move, use nimble, be convenient for different positions and use.

It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A curtain lifting device, comprising:

a curtain;

a base;

the winding and unwinding mechanism comprises a scroll and a winding and unwinding driving device, the scroll is mounted on the base, the lower end of the curtain is wound on the scroll, and the winding and unwinding driving device is used for driving the scroll to rotate; and

curtain elevating system, curtain elevating system includes two folding link assembly, and every folding link assembly includes connecting rod, lower connecting rod and flexible drive arrangement, the upper end of going up the connecting rod with the upper end of curtain is articulated, the lower extreme of going up the connecting rod with the upper end of lower connecting rod is articulated, the lower extreme of lower connecting rod with the base is articulated, flexible drive arrangement's one end with it is articulated to go up the connecting rod, flexible drive arrangement's the other end with the lower connecting rod is articulated.

2. Curtain lifting device as claimed in claim 1, characterized in that the telescopic drive is an electric push rod.

3. Curtain elevating gear according to claim 1, characterized in that, the curtain elevating gear further includes a support plate, the support plate is mounted on the base, the support plate is parallel to the rotation plane of the lower connecting rod, a sliding groove is provided on the support plate, a slider is provided on the lower connecting rod, the slider cooperates with the sliding groove, when the lower connecting rod rotates, the slider moves along the sliding groove.

4. Curtain elevating gear according to claim 3, characterized in that, be equipped with spacing portion on the slider, spacing portion is used for restricting the slider along the direction of perpendicular to the backup pad break away from the spout.

5. Curtain lifting device as claimed in claim 3, characterized in that the slide is a roller.

6. A curtain lifting device as recited in claim 1, further comprising a set of rollers mounted to the base over which the curtain passes.

7. Curtain elevating gear according to claim 1, characterized in that the inside of base is provided with holds the chamber, the lower extreme of receive and release mechanism and lower connecting rod set up in hold the intracavity, the base is seted up with hold the curtain export of chamber intercommunication.

8. Curtain elevating gear according to claim 7, characterized in that, the upper end of the curtain is provided with a closing plate corresponding to the curtain outlet, and the closing plate is used for plugging the curtain outlet.

9. Curtain lifting device as claimed in claim 1, wherein the upper and lower connecting rods are both tubular structures with a hollow interior.

10. Curtain lifting device as claimed in claim 1, characterized in that the back of the curtain is provided with a heat sink.