CN211545341U

CN211545341U - Projection screen cloth rolling device for computer projection display

Info

Publication number: CN211545341U
Application number: CN201922171816.1U
Authority: CN
Inventors: 李蓉
Original assignee: Shenzhen JWIPC Technology Co Ltd
Current assignee: Shenzhen JWIPC Technology Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-09-22
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a projection curtain cloth coiling mechanism that computer projection display used, including the winding drum, the inside of winding drum is equipped with the rolling chamber, the rolling intracavity is equipped with the wind-up roll, it has the curtain body to wind on the wind-up roll, the lower extreme of winding drum is equipped with the winding mouth, the lower extreme of curtain body extends the winding mouth, the lower extreme symmetry of winding drum is fixed with two stop gear, the winding intracavity of winding drum is equipped with deashing mechanism, the upper end of winding drum is equipped with servo motor, servo motor's the terminal fixedly connected with of output shaft gear has first gear, the upper end of winding drum is equipped with the opening corresponding with first gear, the lower extreme of first gear passes through the opening and extends to the winding intracavity. This projection curtain coiling mechanism that computer projection demonstration was used has improved the aesthetic property of curtain rolling, and can clear up the dust on the curtain during the rolling, has guaranteed the clean and tidy of curtain.

Description

Projection screen cloth rolling device for computer projection display

Technical Field

The utility model relates to a computer projection correlation technique field specifically is a projection curtain cloth coiling mechanism that computer projection display used.

Background

Projection screens are tools used in movies, offices, home theaters, large conferences, etc. to display images and video files. The screen with wide viewing angle and low gain is suitable for the occasions with more people to watch or in the transverse watching, the screen with narrow viewing angle and high gain is suitable for the long and narrow space watching, and the screen with proper gain is simultaneously selected, 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 improved.

The curtain can not be carried on spacingly during the rolling of the projection curtain coiling mechanism that current computer projection shows usefulness, leads to curtain rolling position deviation easily to take place, causes the rolling back curtain pleasing to the eye, and the curtain of rolling easily has the dust to adsorb, influences the use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a projection curtain coiling mechanism that computer projection display used to can not carry on spacingly to the curtain when solving the coiling of the projection curtain coiling mechanism that proposes current computer projection display in the above-mentioned background art and use, lead to curtain rolling position deviation easily to take place, cause the rolling back curtain pleasing to the eye, and the curtain of rolling easily has the dust to adsorb, influences the problem of using.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a projection curtain cloth coiling mechanism that computer projection display used, includes the winding drum, the inside of winding drum is equipped with the rolling chamber, the rolling intracavity is equipped with the wind-up roll, it has the curtain body to wind on the wind-up roll, the lower extreme of winding drum is equipped with the winding mouth, the lower extreme of curtain body extends the winding mouth, the lower extreme symmetry of winding drum is fixed with two stop gear, the rolling intracavity of winding drum is equipped with deashing mechanism, the upper end of winding drum is equipped with servo motor, servo motor's the first gear of output shaft end fixedly connected with, the upper end of winding drum is equipped with the opening corresponding with first gear, the lower extreme of first gear extends to the rolling intracavity through the opening, fixedly connected with and first gear intermeshing's second gear on the wind-up roll.

Preferably, stop gear includes limiting plate, connecting rod and bracing piece, the one end and the winding section of thick bamboo fixed connection of bracing piece, the other end and the connecting rod fixed connection of bracing piece, the lower extreme and the limiting plate fixed connection of connecting rod, the limiting plate is U type structure, the limiting plate is located the outside of curtain body.

Preferably, the deashing mechanism includes first branch, second branch, spring and deashing cotton, first branch is fixed on rolling intracavity top lateral wall, the one end of second branch is located first branch, the other end of second branch extends to and the cotton fixed connection of deashing, the both ends of spring respectively with deashing cotton, first branch fixed connection, and the spring housing is established on second branch.

Preferably, fixed connection is in the fixed block on the lateral wall in rolling chamber, the inside of fixed block is equipped with the anticreep ring, the one end of wind-up roll extends to in the fixed block, and the fixed cover of anticreep ring is established on the wind-up roll, swing joint between anticreep ring and the fixed block.

Preferably, a fixing frame is fixedly connected to the side wall of the winding drum, and a locking screw for fixing the servo motor on the fixing frame is arranged on the side wall of the fixing frame.

Preferably, the back of the winding drum is fixedly connected with a plurality of hooks.

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

1. the first gear is driven to rotate through the driving of the servo motor, the first gear and the second gear are meshed with each other to enable the second gear to rotate in a meshed mode, the second gear and the winding roller are fixedly connected to enable the winding pipe to rotate in the winding cavity to wind the curtain body, the anti-release ring rotates in the fixed block along with the winding roller due to the rotation of the winding roller, and the winding roller is prevented from being loosened in the rotating process;

2. at curtain body rolling in-process, realize injecing of curtain body rolling position through the limiting plate, avoid curtain body rolling position to take place the skew, simultaneously at curtain body rolling in-process, the clearance of dust on the curtain body is realized to the deashing cotton under the spring, when the curtain body is collected and is piled up, the spring is compressed, makes the deashing cotton keep in contact with the cloth cover of curtain body, improves deashing efficiency.

Drawings

Fig. 1 is a schematic structural view of a projection screen cloth winding device for computer projection display according to the present invention;

fig. 2 is a schematic structural view of a limiting mechanism of a projection screen cloth winding device for computer projection display according to the present invention;

fig. 3 is a schematic structural diagram of a position a of the projection screen cloth winding device for computer projection display of the present invention.

In the figure: the curtain comprises a limiting plate 1, a connecting rod 2, a supporting rod 3, ash removing cotton 4, a curtain body 5, a mounting plate 6, a first gear 7, a fixing frame 8, a servo motor 9, a locking screw 10, a second gear 11, a wind-up roll 12, a second supporting rod 13, a spring 14, a first supporting rod 15, a slip-off preventing ring 16 and a fixing block 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a projection screen cloth winding device for computer projection display comprises a winding drum 6, a winding cavity is arranged inside the winding drum 6, a winding roller 12 is arranged in the winding cavity, a screen body 5 is wound on the winding roller 12, a winding opening is arranged at the lower end of the winding drum 6, the lower end of the screen body 5 extends out of the winding opening, two limiting mechanisms are symmetrically fixed at the lower end of the winding drum 6, a dust cleaning mechanism is arranged in the winding cavity of the winding drum 6, a servo motor 9 is arranged at the upper end of the winding drum 6, a first gear 7 is fixedly connected to the tail end of an output shaft of the servo motor 9, an opening corresponding to the first gear 7 is arranged at the upper end of the winding drum 6, the lower end of the first gear 7 extends into the winding cavity through the opening, a second gear 11 meshed with the first gear 7 is fixedly connected to the winding drum 12, the servo motor 9 drives the first gear 7 to rotate, the first gear 7 and the second gear 11 are meshed with each other, the second gear 11 is engaged to rotate, and the second gear 11 and the winding roller 12 are fixedly connected to rotate the winding pipe 12 in the winding cavity, so that the curtain body 5 is wound.

The utility model discloses in: the limiting mechanism comprises a limiting plate 1, a connecting rod 2 and a supporting rod 3, one end of the supporting rod 3 is fixedly connected with the winding drum 6, the other end of the supporting rod 3 is fixedly connected with the connecting rod 2, the lower end of the connecting rod 2 is fixedly connected with the limiting plate 1, the limiting plate 1 is of a U-shaped structure, the limiting plate 1 is located on the outer side of the curtain body 5, the limiting plate 1 limits the winding position of the curtain body 5, and the winding position of the curtain body 5 is prevented from being deviated; the dust removing mechanism comprises a first supporting rod 15, a second supporting rod 13, a spring 14 and dust removing cotton 4, the first supporting rod 15 is fixed on the side wall of the top end of the winding cavity, one end of the second supporting rod 13 is located in the first supporting rod 15, the other end of the second supporting rod 13 extends to be fixedly connected with the dust removing cotton 4, two ends of the spring 14 are respectively fixedly connected with the dust removing cotton 4 and the first supporting rod 15, the spring 14 is sleeved on the second supporting rod 13, the dust removing cotton 4 below the spring 14 realizes the cleaning of dust on the curtain body 5 in the winding process of the curtain body 5, and when the curtain body 5 is collected and accumulated, the spring 14 is compressed to enable the dust removing cotton 4 to be in contact with the cloth cover of the curtain body 5; the side wall of the winding cavity is fixedly connected to a fixed block 17, an anti-falling ring 16 is arranged inside the fixed block 17, one end of the winding roller 12 extends into the fixed block 17, the anti-falling ring 16 is fixedly sleeved on the winding roller 12, the anti-falling ring 16 is movably connected with the fixed block 17, the winding roller 12 rotates to enable the anti-falling ring 16 to rotate in the fixed block 17 along with the winding roller 12, and the winding roller 12 is prevented from being loosened in the rotating process; a fixing frame 8 is fixedly connected to the side wall of the winding drum 6, and a locking screw 10 for fixing the servo motor 9 on the fixing frame 8 is arranged on the side wall of the fixing frame 8; the back of the winding drum 6 is fixedly connected with a plurality of hooks, so that the wall-mounted installation of the winding drum 6 is realized.

The working principle is as follows: the first gear 7 is driven to rotate by the servo motor 9, the first gear 7 and the second gear 11 are meshed with each other to enable the second gear 11 to rotate in a meshed mode, the second gear 11 and the wind-up roller 12 are fixedly connected to enable the wind-up pipe 12 to rotate in the wind-up cavity to wind the curtain body 5, the wind-up roller 12 rotates to enable the anti-falling ring 16 to rotate in the fixed block 17 along with the wind-up roller 12, and the wind-up roller 12 is prevented from being loosened in the rotating process, in the rolling process of the curtain body 5, the rolling position of the curtain body 5 is limited by the limiting plate 1, so that the rolling position of the curtain body 5 is prevented from deviating, meanwhile, in the rolling process of the curtain body 5, the dust cleaning cotton 4 below the spring 14 realizes the cleaning of dust on the curtain body 5, when the curtain body 5 is collected and accumulated, the spring 14 is compressed, so that the ash removing cotton 4 is kept in contact with the cloth surface of the curtain body 5, and the ash removing efficiency is improved. This projection curtain coiling mechanism that computer projection demonstration was used has improved the aesthetic property of curtain rolling, and can clear up the dust on the curtain during the rolling, has guaranteed the clean and tidy of curtain.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a projection curtain coiling mechanism that computer projection display used, includes winding reel (6), its characterized in that: a winding cavity is arranged inside the winding drum (6), a winding roller (12) is arranged in the winding cavity, a curtain body (5) is wound on the winding roller (12), a winding opening is arranged at the lower end of the winding drum (6), a coiling port extends from the lower end of the curtain body (5), two limiting mechanisms are symmetrically fixed at the lower end of the coiling drum (6), an ash cleaning mechanism is arranged in a winding cavity of the winding drum (6), a servo motor (9) is arranged at the upper end of the winding drum (6), the tail end of an output shaft of the servo motor (9) is fixedly connected with a first gear (7), the upper end of the winding drum (6) is provided with an opening corresponding to the first gear (7), the lower end of the first gear (7) extends into the winding cavity through the opening, and a second gear (11) meshed with the first gear (7) is fixedly connected to the winding roller (12).

2. The projection screen cloth rolling device for computer projection display as claimed in claim 1, wherein: stop gear includes limiting plate (1), connecting rod (2) and bracing piece (3), the one end and the receipts reel (6) fixed connection of bracing piece (3), the other end and connecting rod (2) fixed connection of bracing piece (3), the lower extreme and limiting plate (1) fixed connection of connecting rod (2), limiting plate (1) is U type structure, limiting plate (1) is located the outside of curtain body (5).

3. The projection screen cloth rolling device for computer projection display as claimed in claim 1, wherein: the deashing mechanism includes first branch (15), second branch (13), spring (14) and deashing cotton (4), first branch (15) are fixed on rolling intracavity top lateral wall, the one end of second branch (13) is located first branch (15), the other end of second branch (13) extend to with deashing cotton (4) fixed connection, the both ends of spring (14) respectively with deashing cotton (4), first branch (15) fixed connection, and spring (14) cover is established on second branch (13).

4. The projection screen cloth rolling device for computer projection display as claimed in claim 1, wherein: fixed connection is in fixed block (17) on the lateral wall in rolling chamber, the inside of fixed block (17) is equipped with anticreep ring (16), the one end of wind-up roll (12) extends to in fixed block (17), and anticreep ring (16) fixed cover is established on wind-up roll (12), swing joint between anticreep ring (16) and fixed block (17).

5. The projection screen cloth rolling device for computer projection display as claimed in claim 1, wherein: the side wall of the winding drum (6) is fixedly connected with a fixing frame (8), and the side wall of the fixing frame (8) is provided with a locking screw (10) for fixing the servo motor (9) on the fixing frame (8).

6. The projection screen cloth rolling device for computer projection display as claimed in claim 1, wherein: the back of the winding drum (6) is fixedly connected with a plurality of hooks.