CN110850672A

CN110850672A - Projection curtain cloth leveling device

Info

Publication number: CN110850672A
Application number: CN201911150313.4A
Authority: CN
Inventors: 陆荣花; 蔡龙顺
Original assignee: Jiangsu Yanxi New City Education Industry Project Development Co Ltd
Current assignee: Yili film technology (Huizhou) Co.,Ltd.
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-02-28
Anticipated expiration: 2039-11-21
Also published as: CN110850672B

Abstract

The invention relates to the technical field of projection equipment, and discloses a projection curtain leveling device which comprises a projection curtain recycling box, wherein two sides of the bottom of the projection curtain recycling box are both connected with connecting plates, a projection curtain is arranged at the bottom end of the projection curtain recycling box, a motor is installed on the inner side of the projection curtain recycling box, one side of the motor is connected with a scroll, the bottom end of the projection curtain is connected with a balancing weight, and two sides of the balancing weight are both connected with limiting plates. According to the projection screen, the projection screen can be conveniently leveled through the connecting plate, the movable plate, the pull rod, the spring, the limiting plate, the fixing block and the rubber anti-slip gasket, the phenomenon that wrinkles appear on the projection screen connected with the balancing weight under the external influence on the viewing effect can be avoided, the practicability of the projection device is improved, the connecting plate and the projection screen recovery box can be conveniently mounted or dismounted through the fixing screw rod and the screw hole, and therefore the use of workers is facilitated.

Description

Projection curtain cloth leveling device

Technical Field

The invention relates to the technical field of projection equipment, in particular to a projection screen cloth leveling 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.

At present, a plurality of projection screen leveling devices exist in the market, but the projection screen leveling devices generally exist, the projection screen cannot be leveled conveniently, and the functions are single. Accordingly, those skilled in the art have provided a projection screen leveling device to solve the above problems in the background art.

Disclosure of Invention

The present invention is directed to a projection screen leveling device, which solves the above problems.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a projection curtain leveling device, retrieves the box including the projection curtain, the both sides of the bottom that the box was retrieved to the projection curtain all are connected with the connecting plate, and the bottom that the box was retrieved to the projection curtain is provided with the projection curtain, the inboard of box is retrieved to the projection curtain is installed the motor, one side of motor is connected with the spool, the bottom of projection curtain is connected with the balancing weight, the both sides of balancing weight all are connected with the limiting plate, one side that two connecting plates are close to each other all is connected with the fixed block, the top of fixed block is connected with the pull rod, the bottom of pull rod is connected with the fly leaf, spacing spring is installed on the top of fly.

As a still further scheme of the invention: electric cylinder is installed to the bottom of spool, the bottom of spool is connected with the second cleaning roller support, one side that electric cylinder is close to the projection curtain is connected with first cleaning roller support, the inboard of first cleaning roller support is provided with first cleaning roller, the inboard of second cleaning roller support is provided with the second cleaning roller.

As a still further scheme of the invention: the both sides of the bottom of box are retrieved to the projection curtain all have been seted up the screw, the top of connecting plate is connected with clamping screw, clamping screw is connected with the inboard of screw, box and connecting plate are retrieved to the projection curtain pass through clamping screw and screw fastening connection.

As a still further scheme of the invention: the top end of the fixed block is provided with a round hole, the pull rod is arranged inside the round hole, and the pull rod is arranged on the inner side of the limiting spring.

As a still further scheme of the invention: the first cleaning roller and the second cleaning roller are arranged on the same height, and cleaning fluff is arranged on the surfaces of the first cleaning roller and the second cleaning roller.

As a still further scheme of the invention: the bottom of fly leaf and the top of limiting plate all are provided with rubber anti-skidding gasket.

As a still further scheme of the invention: the bottom of limiting spring is connected with the movable plate, and the top of limiting spring is connected with the fixed block

Compared with the prior art, the invention has the beneficial effects that:

1. through connecting plate, fly leaf, pull rod, spring, limiting plate, fixed block and rubber anti-skidding gasket, the projection curtain that can be convenient evens out and can avoid the balancing weight to connect appears the fold under external influence and influences the sight shadow effect to improve this projection arrangement's practicality, through clamping screw and screw, can be convenient retrieve the box installation or dismantle with connecting plate and projection curtain, thereby made things convenient for staff's use.

2. Through first cleaning roller, second cleaning roller, first cleaning roller support, second cleaning roller support and electrical cylinder, when there is more dust on the surface of projection curtain, can drive the in-process of projection curtain rebound and rolling up the spool with the projection curtain at the motor, the convenient dust clean up with on the projection curtain to this projection equipment's practicality has been improved.

Drawings

FIG. 1 is a schematic structural view of a projection screen cloth leveling device;

FIG. 2 is a front, partially cross-sectional view of a projection screen recycling bin in a projection screen leveling apparatus;

fig. 3 is an enlarged view of a in a projection screen leveling device;

FIG. 4 is a side, partially cross-sectional view of a projection screen recycling bin and an electric cylinder in a projection screen leveling apparatus;

fig. 5 is a top partial sectional view of a first cleaning roller and a second cleaning roller in a projection screen leveling device;

fig. 6 is a side partial cross-sectional view of a projection screen recycling bin and a connecting plate in a projection screen leveling apparatus.

In the figure: 1. a balancing weight; 2. a projection screen; 3. a projection curtain recycling box; 4. a connecting plate; 5. a reel; 6. a motor; 7. a pull rod; 8. a fixed block; 9. a limiting plate; 10. a limiting spring; 11. a movable plate; 12. an electric cylinder; 13. a first cleaning roller; 14. a second cleaning roller; 15. a second scrub roller support; 16. a first scrub roller support; 17. fixing the screw rod; 18. and a screw hole.

Detailed Description

Referring to fig. 1 to 6, in an embodiment of the present invention, a projection curtain leveling device includes a projection curtain recycling box 3, two sides of a bottom of the projection curtain recycling box 3 are both connected with connecting plates 4, a projection curtain 2 is disposed at a bottom end of the projection curtain recycling box 3, a motor 6 is mounted at an inner side of the projection curtain recycling box 3, one side of the motor 6 is connected with a reel 5, a bottom end of the projection curtain 2 is connected with a counterweight 1, two sides of the counterweight 1 are both connected with limiting plates 9, one sides of the two connecting plates 4 close to each other are both connected with a fixed block 8, a top end of the fixed block 8 is connected with a pull rod 7, a bottom end of the pull rod 7 is connected with a movable plate 11, and a top end of the movable plate.

In fig. 4 and 5: an electric cylinder 12 is installed at the bottom end of the scroll 5, a second cleaning roller support 15 is connected at the bottom end of the scroll 5, a first cleaning roller support 16 is connected at one side of the electric cylinder 12 close to the projection screen 2, a first cleaning roller 13 is arranged at the inner side of the first cleaning roller support 16, a second cleaning roller 14 is arranged at the inner side of the second cleaning roller support 15, so that when the surface of the projection screen 2 has more dust, the electric cylinder 12 is opened when the motor 6 is turned on and the projection screen 2 is rolled back to the scroll 5, a piston rod of the electric cylinder 12 drives the first cleaning roller support 16 and the first cleaning roller 13 to move towards the direction of the projection screen 2, so that the projection screen 2 is pressed on the second cleaning roller 14 by the first cleaning roller 13, and the first cleaning roller 13 and the second cleaning roller 14 continuously rotate on the projection screen 2 and clean the projection screen 2 in the process that the projection screen 2 is driven by the motor 6 to move upwards, therefore, dust on the projection screen 2 can be cleaned, and the motor 6 and the electric cylinder 12 are both connected with an external power supply.

In fig. 5: screw 18 has all been seted up on both sides of the bottom of box 3 is retrieved to the projection curtain, and the top of connecting plate 4 is connected with clamping screw 17, and clamping screw 17 is connected with the inboard of screw 18, and box 3 is retrieved to the projection curtain and connecting plate 4 pass through

clamping screw

17 and 18 fastening connection of screw to can be convenient retrieve box 3 installation or dismantlement with connecting plate 4 and projection curtain.

In fig. 3: the round hole has been seted up on the top of fixed block 8, and pull rod 7 sets up in the inside of round hole, and pull rod 7 sets up in the inboard of spacing spring 10, and the bottom of spacing spring 10 is connected with fly leaf 11, and the top of spacing spring 10 is connected with fixed block 8 to when handheld and pulling pull rod 7, can make pull rod 7 drive fly leaf 11 that its bottom is connected and move up under spacing spring 10's effect.

In fig. 4: the first cleaning roller 13 and the second cleaning roller 14 are at the same height, and the surfaces of the first cleaning roller 13 and the second cleaning roller 14 are provided with cleaning fluff, so that the first cleaning roller 13 can press the projection screen 2 on the second cleaning roller 14, and dust on the projection screen 2 can be conveniently cleaned.

In fig. 3: the bottom of fly leaf 11 and the top of limiting plate 9 all are provided with rubber anti-skidding gasket to two fly leaves 11 can be more effectual restriction balancing weight 1 and the fold appears under the influence of external world with the projection curtain 2 of connecting.

The working principle of the invention is as follows: when the projection equipment is needed to put in images, firstly, the motor 6 is turned on, the output shaft of the motor 6 drives the scroll 5 to rotate in the projection curtain recycling box 3, so that the projection curtain 2 extends out from the projection curtain recycling box 3, the counterweight block 1 connected with the bottom end of the projection curtain 2 slowly moves downwards, after the projection curtain 2 is completely extended out, the connecting plate 4 is held by hand, the fixing screw 17 connected with the top end of the connecting plate 4 is rotated into the screw hole 18 formed in the bottom end of the projection curtain recycling box 3, so that the connecting plate 4 is fixed on the projection curtain recycling box 3, the pull rod 7 is held by hand and pulled, so that the pull rod 7 drives the movable plate 11 connected with the bottom end of the pull rod to move upwards under the action of the limiting spring 10, at the moment, the limiting spring 10 is in a compressed state, then the counterweight block 1 is held by hand, so that the limiting plates 9 arranged on two sides of the counterweight, when the pull rod 7 is loosened, the limiting spring 10 returns to the original position, so that the movable plate 11 connected with the limiting spring 10 moves downwards and contacts with the limiting plate 9, and the movable plate 11 applies downward pressure to the limiting plate 9, so that the projection screen 2 can be leveled and the phenomenon that wrinkles appear on the counterweight block 1 and the projection screen 2 connected with the counterweight block 1 under the external influence to influence the viewing effect can be avoided, when more dust exists on the surface of the projection screen 2, when the motor 6 is turned on and the projection screen 2 is wound back onto the winding shaft 5, the electric cylinder 12 is turned on, the piston rod of the electric cylinder 12 drives the first cleaning roller bracket 16 and the first cleaning roller 13 to move towards the direction of the projection screen 2, so that the first cleaning roller 13 presses the projection screen 2 onto the second cleaning roller 14, and in the process that the projection screen 2 is driven by the motor 6 to move upwards, the first cleaning roller 13 and the second cleaning roller 14 continuously rotate on the projection screen 2 and clean the projection screen 2, so that dust on the projection screen 2 can be cleaned.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. A projection screen leveling device comprises a projection screen recovery box (3) and is characterized in that, two sides of the bottom of the projection curtain recycling box (3) are connected with connecting plates (4), the bottom end of the projection curtain recycling box (3) is provided with a projection curtain (2), the inner side of the projection curtain recycling box (3) is provided with a motor (6), one side of the motor (6) is connected with a scroll (5), the bottom end of the projection curtain (2) is connected with a balancing weight (1), both sides of the balancing weight (1) are connected with limiting plates (9), one sides of the two connecting plates (4) close to each other are connected with fixing blocks (8), the top of fixed block (8) is connected with pull rod (7), the bottom of pull rod (7) is connected with fly leaf (11), spacing spring (10) are installed on the top of fly leaf (11).

2. The projection screen cloth leveling device according to claim 1, wherein a motor-driven cylinder (12) is mounted at the bottom end of the winding shaft (5), a second cleaning roller support (15) is connected to the bottom end of the winding shaft (5), a first cleaning roller support (16) is connected to one side, close to the projection screen cloth (2), of the motor-driven cylinder (12), a first cleaning roller (13) is arranged on the inner side of the first cleaning roller support (16), and a second cleaning roller (14) is arranged on the inner side of the second cleaning roller support (15).

3. The projection screen cloth leveling device according to claim 1, wherein screw holes (18) are formed in two sides of the bottom end of the projection screen cloth recovery box (3), a fixing screw (17) is connected to the top end of the connecting plate (4), the fixing screw (17) is connected to the inner side of the screw holes (18), and the projection screen cloth recovery box (3) and the connecting plate (4) are fixedly connected through the fixing screw (17) and the screw holes (18).

4. The projection screen cloth leveling device according to claim 1, wherein a round hole is formed in the top end of the fixing block (8), the pull rod (7) is arranged inside the round hole, and the pull rod (7) is arranged on the inner side of the limiting spring (10).

5. The projection screen cloth leveling device according to claim 2, wherein the first cleaning roller (13) and the second cleaning roller (14) are at the same height, and cleaning fluff is arranged on the surfaces of the first cleaning roller (13) and the second cleaning roller (14).

6. The projection screen cloth leveling device according to claim 1, wherein the bottom end of the movable plate (11) and the top end of the limiting plate (9) are both provided with rubber anti-slip gaskets.

7. The projection screen cloth leveling device according to claim 1, wherein the bottom end of the limiting spring (10) is connected with the movable plate (11), and the top end of the limiting spring (10) is connected with the fixed block (8).