CN212214619U

CN212214619U - Curtain lifting and drawing device

Info

Publication number: CN212214619U
Application number: CN202020806463.8U
Authority: CN
Inventors: 白莹莹; 王洛
Original assignee: Shanghai Modi Network Technology Co ltd
Current assignee: Shanghai Modi Network Technology Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-12-25
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a curtain lifting and drawing device, which relates to the technical field of projection curtains, and comprises a fixed frame, a drawing mechanism which is driven by an output shaft of a double-shaft motor to rotate and is used for drawing in the curtain, the other output shaft of the double-shaft motor is connected with a winding wheel in a driving way, a locking mechanism which locks the curtain is arranged on a connecting groove block, an elastic guide mechanism is arranged between the locking mechanism and a steel wire rope, and a cleaning mechanism which cleans the curtain is arranged in a transmission case; the utility model discloses a draw in mechanism that sets up can drive initiatively change the roller and follow the synchronous revolution of roller, realize that follow the roller and to the transport of curtain and the initiative change the roller to the curtain around rolling up, promoted the curtain greatly around rolling up the effect, the locking mechanism of setting can be fixed to curtain lower edge centre gripping, it is straighten with the curtain by direction stop gear effect around rolling up the in-process, can be steady inseparable around rolling up on the roller around rolling up in-process curtain, around rolling up the difficult rock of process curtain, very steady high efficiency.

Description

Curtain lifting and drawing device

Technical Field

The utility model relates to a projection curtain technical field specifically is a curtain goes up and down to draw in device.

Background

Projection screens are tools used in movies, offices, home theaters, large conferences, etc. to display images and video files. And can be divided into various sizes. The selection of different space projection screens is different, for example, a wide viewing angle and a low gain screen are suitable for the occasions with more people to watch or the occasions to watch transversely, a narrow viewing angle and a high gain screen are selected for watching in a narrow and long space, and a screen with proper gain is selected at the same time, so that the contrast of the screen is improved, the gray level of an image is increased, the color is bright, and the observability of the image is increased.

The patent with the publication number of CN 206584153U discloses a lifting structure of a holographic projection screen, which comprises a roller motor, a truss, a transmission pipe, a fixing bracket, a thick steel wire, a falling-prevention hook, a screen, a supporting rod and the like, wherein the roller motor is positioned in the truss, the transmission pipe is arranged in the truss, the fixing bracket is positioned at one side of the transmission pipe, the fixing bracket is arranged in the truss, the thick steel wire is positioned on the fixing bracket, the thick steel wire is positioned above the falling-prevention hook, the screen is positioned below the transmission pipe, the fixing bracket is fixed with the truss, the screen is positioned above the supporting rod, the supporting rod is positioned below the truss, the falling-prevention hook is positioned at one side of the screen, the roller motor is positioned above the supporting rod, the falling-prevention hook is positioned at one side of the supporting rod, the thin steel wire is positioned at one side of the thick steel wire, the thin steel wire is positioned on a first rope collector, the steel wire fixer is positioned on the supporting rod, the supporting rod is provided with a circular ring, the device can, but draw in the mobility stability of in-process curtain relatively poor, can not realize the steady high efficiency of curtain and draw in the effect in, for this reason, provide a curtain lift and draw in device in to solve above-mentioned technical problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a curtain goes up and down to draw in device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a curtain goes up and down to draw in device in, includes the mount, is fixed with the transmission case on the mount, the transmission case internal fixation has the biax motor, and an output shaft drive of biax motor rotates and is used for carrying out the mechanism in drawing in that draws in to the curtain, another output shaft drive of biax motor is connected with the take-up pulley, winds around being equipped with wire rope on the take-up pulley, the connecting groove piece is installed to the curtain lower extreme, is equipped with the locking mechanism to curtain locking on the connecting groove piece, install elastic guide mechanism between locking mechanism and the wire rope, be equipped with the clearance mechanism to the curtain clearance in the transmission case.

As an improved scheme of the utility model: the furling mechanism comprises a worm driven to rotate by a double-shaft motor, a worm wheel is connected to the worm in a meshed mode, and a driving rotary roller for winding the curtain is coaxially fixed on the worm wheel.

As an improved scheme of the utility model: the furling mechanism further comprises a driven rotating roller which is rotatably arranged on the fixed frame, and the driven rotating roller is in transmission connection with the driving rotating roller through a belt pulley mechanism.

As an improved scheme of the utility model: the locking mechanism comprises a locking stud which is connected with the inside of the connecting groove block in a threaded manner, a pressing plate which is connected with the locking stud in an abutting mode is slidably mounted in the connecting groove block, and a spring ring I is fixed between the pressing plate and the connecting groove block.

As an improved scheme of the utility model: the elastic guide mechanism comprises a lifting plate which is slidably mounted on a fixing frame, a connecting plate is fixed between the lifting plate and the connecting groove block, the lower end of a steel wire rope is fixed on the lifting plate, a guide rod which penetrates through the lifting plate is vertically fixed in the fixing frame, and a spring ring II is fixed between the fixing frame and the lifting plate.

As an improved scheme of the utility model: the cleaning mechanism comprises a driving gear coaxially fixed with the driving rotating roller, a driven gear is meshed with the driving gear, and a brush roller in contact with the curtain is coaxially fixed on the driven gear.

As an improved scheme of the utility model: the cleaning mechanism further comprises a dust collector fixed at the top of the transmission case, and an air suction cover positioned in the transmission case is installed at the inlet end of the dust collector.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a draw in mechanism that sets up can drive initiatively change the roller and follow the synchronous revolution of roller, realize that follow the roller and to the transport of curtain and the initiative change the roller to the curtain around rolling up, promoted the curtain greatly around rolling up the effect, the locking mechanism of setting can be fixed to curtain lower edge centre gripping, it is straighten with the curtain by direction stop gear effect around rolling up the in-process, can be steady inseparable around rolling up on the roller around rolling up in-process curtain, around rolling up the difficult rock of process curtain, very steady high efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of section A of FIG. 1;

FIG. 3 is a schematic view of the connection between the driving gear and the driven gear of the present invention;

fig. 4 is a schematic view of a partial three-dimensional structure of the present invention.

In the figure: 1-fixed frame, 2-curtain, 3-belt pulley mechanism, 4-worm, 5-air suction hood, 6-dust collector, 7-brush roller, 8-driven gear, 9-driving roller, 10-worm gear, 11-transmission box, 12-double shaft motor, 13-winding wheel, 14-steel wire rope, 15-connecting plate, 16-connecting groove block, 17-locking stud, 18-driving gear, 19-spring ring I, 20-pressing plate, 21-driven roller, 22-spring ring II, 23-guide rod, 24-lifting plate and 25-driving gear.

Detailed Description

The technical scheme of the patent is further described in detail by combining the following specific embodiments:

example 1

Referring to fig. 1-4, a curtain lifting and drawing device includes a fixing frame 1, a transmission case 11 is fixed on the fixing frame 1, a double-shaft motor 12 is fixed in the transmission case 11, an output shaft of the double-shaft motor 12 drives and rotates a drawing mechanism for drawing a curtain 2, another output shaft of the double-shaft motor 12 is connected with a winding wheel 13 in a driving mode, a steel wire rope 14 is wound on the winding wheel 13, a connecting groove block 16 is installed at the lower end of the curtain 2, a locking mechanism for locking the curtain 2 is arranged on the connecting groove block 16, an elastic guide mechanism is installed between the locking mechanism and the steel wire rope 14, and a cleaning mechanism for cleaning the curtain 2 is arranged in the transmission case 11.

Specifically, draw in mechanism includes by the rotatory worm 4 of double-shaft motor 12 drive, the meshing is connected with worm wheel 10 on the worm 4, coaxial being fixed with on the worm wheel 10 to curtain 2 around the initiative commentaries on classics roller 9 of rolling up, when drawing in the operation to curtain 2, double-shaft motor 12 drive worm 4 is rotatory, worm 4 drives worm wheel 10 and rotates, worm wheel 10 drives initiative commentaries on classics roller 9 and winds up curtain 2, owing to set up worm 4 and worm wheel 10 that the meshing is connected, realize the auto-lock nature of initiative commentaries on classics roller 9 rotation process, guarantee curtain 2 stable around rolling up the effect.

Further, draw in mechanism still including rotating driven commentaries on classics roller 21 of installing on mount 1, driven commentaries on classics roller 21 passes through belt pulley mechanism and is connected with the transmission of initiative commentaries on classics roller 9, and at the rotatory in-process of initiative commentaries on classics roller 9, the initiative is changeed roller 9 and is driven commentaries on classics roller 21 rotatory through belt pulley mechanism 3 drive, and the rotatory curtain 2 that can be on it of driven commentaries on classics roller 21 is carried to transmission box 11 in for the initiative is changeed roller 9 and is more smooth and steady to the winding of curtain 2.

Example 2

On the basis of embodiment 1, in addition, the locking mechanism of the device comprises a locking stud 17 which is installed in a connecting groove block 16 in a threaded connection mode, a pressing plate 20 which is abutted against the locking stud 17 is installed in the connecting groove block 16 in a sliding mode, and a spring ring I19 is fixed between the pressing plate 20 and the connecting groove block 16.

The lower end of the curtain 2 extends into the connecting groove block 16, the pressing plate 20 is pushed by screwing the locking stud 17, and the pressing plate 20 overcomes the elastic acting force of the spring ring 19 to tightly press and fix the curtain 2.

The elastic guide mechanism comprises a lifting plate 24 which is slidably mounted on a fixed frame 1, a connecting plate 15 is fixed between the lifting plate 24 and a connecting groove block 16, the lower end of a steel wire rope 14 is fixed on the lifting plate 24, a guide rod 23 which penetrates through the lifting plate 24 is vertically fixed in the fixed frame 1, and a spring ring II22 is fixed between the fixed frame 1 and the lifting plate 24.

The drive of double-shaft motor 12 is rotatory around rolling wheel 13, it is rotatory around rolling wheel 13 to wind wire rope 14, wire rope 14 pulling lifter plate 24 is vertical upwards to slide this moment, spring coil II22 elastic deformation compression produces vertical decurrent reaction force, connect groove piece 16 to curtain 2 decurrent pulling force promptly, make curtain 2 can be stretched straightly, stable difficult rocking when having effectively guaranteed curtain 2 and going up and down, curtain 2 is also better with the laminating effect of initiative commentaries on classics roller 9 simultaneously, curtain 2 draws in the steady high efficiency of process in.

Further, this device still is equipped with clearance mechanism, include with the initiative change roller 9 coaxial fixed driving gear 25, the meshing is connected with driven gear 8 on the driving gear 25, the coaxial brush roller 7 with the contact of curtain 2 that is fixed with on the driven gear 8, clearance mechanism still includes the dust catcher 6 of fixing at transmission case 11 top, the suction hood 5 that is located transmission case 11 is installed to the entrance point of dust catcher 6.

At the rotatory in-process of initiative commentaries on classics roller 9, the initiative commentaries on classics roller 9 drives the driving gear 25 rotatory, and driving gear 25 drives driven gear 8 rotatory with it meshing, and driven gear 8 drives brush roller 7 rotatory this moment, realizes cleaning the dust on curtain 2 surface, and dust catcher 6 can carry out timely absorption through the dust that the cover 5 will clean of breathing in, has guaranteed the cleanness on curtain 2 surface.

To sum up, the utility model discloses a mechanism of drawing in that sets up can drive initiative change roller 9 and driven change roller 21 synchronous revolution, realizes that driven change roller 21 to the transport of curtain 2 and initiative change roller 9 to the winding of curtain 2, has promoted the winding effect of curtain 2 greatly, and the locking mechanism of setting can be fixed to 2 lower edge centre gripping of curtain, and the winding in-process is straightened curtain 2 by direction stop gear effect, and winding in-process curtain 2 can steadily inseparable around rolling up on initiative change roller 9, is difficult for rocking around winding process curtain 2, and is very steady high-efficient.

It should be noted that, although the present specification describes embodiments, each embodiment does not include only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art, and the above-mentioned embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the claims of the technical solutions. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications, improvements and substitutions can be made, which all fall within the protection scope of the present technical solution. The protection scope of this technical solution patent should be subject to the appended claims.

Claims

1. The utility model provides a curtain goes up and down to draw in device in, includes mount (1), is fixed with transmission case (11) on mount (1), its characterized in that, transmission case (11) internal fixation has double-shaft motor (12), and an output shaft drive of double-shaft motor (12) rotates and is used for carrying out the mechanism in that draws in to curtain (2), another output shaft drive of double-shaft motor (12) is connected with around rolling wheel (13), around being equipped with wire rope (14) on rolling wheel (13), connecting groove piece (16) are installed to curtain (2) lower extreme, are equipped with the locking mechanism to curtain (2) locking on connecting groove piece (16), install elastic guide mechanism between locking mechanism and wire rope (14), be equipped with the clearance mechanism to curtain (2) clearance in transmission case (11).

2. A curtain lifting and closing device as claimed in claim 1, wherein the closing mechanism comprises a worm (4) driven by a double-shaft motor (12) to rotate, a worm wheel (10) is engaged and connected to the worm (4), and a driving roller (9) for winding the curtain (2) is coaxially fixed on the worm wheel (10).

3. A curtain lifting and closing device as claimed in claim 2, wherein the closing mechanism further comprises a driven roller (21) rotatably mounted on the fixing frame (1), and the driven roller (21) is in transmission connection with the driving roller (9) through a belt pulley mechanism.

4. A curtain lifting and furling device as claimed in claim 1, wherein the locking mechanism comprises a locking stud (17) which is installed in the connecting slot block (16) in a threaded connection manner, a pressing plate (20) which is abutted against the locking stud (17) is installed in the connecting slot block (16) in a sliding manner, and a spring ring I (19) is fixed between the pressing plate (20) and the connecting slot block (16).

5. A curtain lifting and closing device as claimed in claim 1, wherein the elastic guide mechanism comprises a lifting plate (24) slidably mounted on the fixing frame (1), a connecting plate (15) is fixed between the lifting plate (24) and the connecting slot block (16), the lower end of the steel wire rope (14) is fixed on the lifting plate (24), a guide rod (23) penetrating through the lifting plate (24) is vertically fixed in the fixing frame (1), and a spring ring II (22) is fixed between the fixing frame (1) and the lifting plate (24).

6. A curtain lifting and closing device as claimed in claim 1, wherein the cleaning mechanism comprises a driving gear (25) coaxially fixed with the driving roller (9), a driven gear (8) is engaged with the driving gear (25), and a brush roller (7) contacting the curtain (2) is coaxially fixed on the driven gear (8).

7. A curtain lifting and furling device as claimed in claim 6, wherein the cleaning mechanism further comprises a dust collector (6) fixed on the top of the transmission case (11), and the inlet end of the dust collector (6) is provided with the air suction cover (5) positioned in the transmission case (11).