CN218579231U - A projection screen roll-up device - Google Patents

Abstract

The utility model provides a projection curtain cloth coiling mechanism. Projection curtain coiling mechanism includes: the winding box is provided with a winding floating mechanism, a cleaning mechanism and a closing mechanism; the floating mechanism of rolling includes rolling pivot, rolling motor, wind-up roll, bar balancing weight, projection curtain, two pivot and two roller that flatten, the rolling pivot is rotated and is installed in the rolling case, the one end of rolling pivot extends to outside the rolling case, rolling motor fixed mounting is on one side outer wall of rolling case, rolling motor's output shaft and the one end fixed connection of rolling pivot, the wind-up roll fixed cover is established in the rolling pivot. The utility model provides a projection curtain coiling mechanism can simply effectively flatten the projection curtain, avoids the projection curtain fold to appear, clears up the projection curtain, avoids the dust to adhere to, influences the projection quality to have the advantage of the maintenance of being convenient for.

Description

A projection screen roll-up device

technical field

The utility model belongs to the technical field of projection screen rolling, in particular to a projection screen rolling device.

Background technique

Projection screens are used in movies, offices, home theaters, large conferences and other occasions. The tools used to display images and video files are divided into many specifications and sizes. The selection of projection screens in different spaces is also different. It is advisable to choose a wide viewing angle and low-gain screen for many or horizontal viewing occasions, and a narrow viewing angle and high-gain screen for viewing in narrow and long spaces. , Bright colors, increase the visibility of the image.

In the related art, a projection screen roll-up device is disclosed, including: a roll-up rod with a curtain body on the roll-up rod; a cleaning rod installed under the roll-up rod, the cleaning rod is parallel to the roll-up rod, and A cleaning brush is installed on the top, and adjustment columns are installed vertically at both ends of the cleaning rod, and the two adjustment columns are parallel to each other; there is a pair of adjustment blocks, and an adjustment groove is provided in the adjustment block, and the two ends of the cleaning rod extend to the adjustment groove respectively Inside, the adjusting column runs through the adjusting block from the adjusted groove and extends to the outside of the adjusting block; the cleaning brush moves toward the screen body to the first state of being in contact with the screen body driven by the adjusting column, and moves away from the screen body driven by the adjusting column. In the second state of the screen body movement, the screen body is cleaned every time after the screen body is used to avoid accumulation of dust on the screen body, ensure the cleanliness of the screen body, and maintain the high-quality projection effect of the screen body.

However, the above-mentioned structure still has disadvantages. When the projection screen roll-up device is in use, it cannot flatten the projection screen, causing wrinkles to appear on the projection screen.

Therefore, it is necessary to provide a new projection screen rolling device to solve the above technical problems.

Utility model content

The technical problem solved by the utility model is to provide a projection screen that can simply and effectively flatten the projection screen, avoid wrinkles on the projection screen, clean the projection screen, avoid dust adhesion, affect the projection quality, and have a projection screen that is easy to maintain. device.

In order to solve the above-mentioned technical problems, the projection screen rolling device provided by the utility model includes: a rolling box, and the rolling box is provided with a winding and smoothing mechanism, a cleaning mechanism and a closing mechanism;

The winding and smoothing mechanism includes a winding shaft, a winding motor, a winding roller, a strip-shaped counterweight, a projection screen, two flattening shafts and two flattening rollers, and the winding shaft is rotatably mounted on In the winding box, one end of the winding shaft extends to the outside of the winding box, and the winding motor is fixedly installed on one side of the outer wall of the winding box, and the output shaft of the winding motor and one end of the winding shaft Fixedly connected, the winding roller is fixedly set on the winding shaft, the strip-shaped counterweight is arranged under the winding box, the projection screen is wound on the winding roller, and the bottom of the projection screen extends To the outside of the winding box and fixedly connected with the top of the bar-shaped counterweight, the two flattening shafts are rotated and installed in the winding box, and the two flattening rollers are respectively fixed and sleeved on the two flattening shafts. On the rotating shaft, the sides of the two flattening rollers that are close to each other are in contact with the projection screen;

The cleaning mechanism includes a cleaning box, two cleaning rotating shafts, a cleaning motor, two cleaning rollers and a U-shaped positioning block. The cleaning box is fixedly installed on the bottom of the winding box, and the two cleaning rotating shafts are installed in rotation In the cleaning box, one end of the corresponding cleaning shaft extends out of the cleaning box, the cleaning motor is fixedly mounted on one side of the outer wall of the cleaning box, and the output shaft of the cleaning motor is fixedly connected to one end of the corresponding cleaning shaft, The two cleaning rollers are respectively fixedly sleeved on the two cleaning rotating shafts, the U-shaped positioning block is fixedly installed in the cleaning box, and the bar-shaped counterweight is matched with the U-shaped positioning block.

As a further solution of the utility model, the closing mechanism includes a maintenance cover, a cavity, a circular block, a pull rod, a telescopic spring and a clamping rod. The maintenance cover is hingedly mounted on one side of the outer wall of the winding box, and the cavity The body is set on the winding box, the circular block is arranged in the cavity, the pull rod is fixedly installed on the bottom of the circular block, the bottom end of the pull rod extends to the outside of the winding box and is slidably connected with the winding box, The telescopic spring is slidably sleeved on the pull rod, the top of the telescopic spring is fixedly connected to the bottom of the circular block, the bottom of the telescopic spring is fixedly connected to the bottom inner wall of the cavity, and the clamping rod is fixedly installed on the circular block. top of the block.

As a further solution of the present utility model, a plurality of bristles are fixedly installed on the two cleaning rollers, and the plurality of bristles are evenly distributed on the two cleaning rollers, and the corresponding bristles are all in contact with the projection screen .

As a further solution of the present invention, the bottom of the winding box is provided with a strip-shaped slot, and the projection screen passes through the strip-shaped slot and fits with the strip-shaped slot.

As a further solution of the present invention, a plurality of reinforcement rods are fixedly installed on the inner wall of the cleaning box, and the ends of the plurality of reinforcement rods that are close to each other are fixedly connected to the U-shaped positioning block.

As a further solution of the present utility model, a circular card slot is opened at the bottom of the maintenance cover, and the top end of the clamp rod extends into the circular card slot and fits into the circular card slot.

As a further solution of the present utility model, pulleys are fixedly sheathed on the two cleaning rotating shafts, and a timing belt is wound on the two pulleys.

Compared with related technologies, the projection screen rolling device provided by the utility model has the following beneficial effects:

1. The utility model is equipped with a winding and smoothing mechanism, so that the projection screen can be simply and effectively rolled up and flattened to avoid wrinkles on the projection screen;

2. The utility model is equipped with a cleaning mechanism, so that the dust attached to the projection screen can be cleaned simply and effectively, so as to avoid dust adhesion and affect the projection quality;

3. The utility model is equipped with a closing mechanism, so that the maintenance cover can be fixed simply and effectively, and it is convenient to maintain the device when a failure occurs.

Description of drawings

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a front view sectional structural schematic diagram of the projection screen rolling device of the present invention;

Fig. 2 is a side view sectional structural schematic diagram of the projection screen rolling device of the present invention;

FIG. 3 is an enlarged structural schematic diagram of part A in FIG. 2 .

In the figure: 1. Rewinding box; 2. Rewinding shaft; 3. Rewinding motor; 4. Rewinding roller; 5. Bar counterweight; 6. Projection screen; 7. Flattening shaft; 8. Flattening Rotating roller; 9. Cleaning box; 10. Cleaning shaft; 11. Cleaning motor; 12. Cleaning roller; 13. O-shaped positioning block; 14. Maintenance cover; 15. Cavity; 16. Round block; 17. Pull rod ; 18, telescopic spring; 19, clamping rod; 20, belt pulley; 21, synchronous belt.

Detailed ways

Please refer to Fig. 1, Fig. 2 and Fig. 3 in combination, wherein Fig. 1 is a front view sectional structure schematic diagram of the projection screen roll-up device of the present invention; Fig. 2 is a side view sectional structure schematic diagram of the projection screen roll-up device of the present utility model ; FIG. 3 is a schematic diagram of the enlarged structure of part A in FIG. 2 . The projection screen rolling device includes: a rolling box 1, and the rolling box 1 is provided with a rolling and smoothing mechanism, a cleaning mechanism and a closing mechanism;

The rewinding and smoothing mechanism includes a rewinding shaft 2, a rewinding motor 3, a rewinding roller 4, a bar counterweight 5, a projection screen 6, two flattening shafts 7 and two flattening rollers 8, and The rewinding shaft 2 is rotatably installed in the rewinding box 1, and one end of the rewinding shaft 2 extends to the outside of the rewinding box 1, and the rewinding motor 3 is fixedly installed on one side of the outer wall of the rewinding box 1, so that The output shaft of the winding motor 3 is fixedly connected to one end of the winding shaft 2, the winding roller 4 is fixedly sleeved on the winding shaft 2, and the strip-shaped counterweight 5 is arranged under the winding box 1 , the projection screen 6 is wound on the take-up roller 4, the bottom of the projection screen 6 extends outside the take-up box 1 and is fixedly connected with the top of the bar counterweight 5, and the two flattened rotating shafts 7 are Rotationally installed in the winding box 1, the two flattening rollers 8 are respectively fixedly sleeved on the two flattening rotating shafts 7, and the sides of the two flattening rollers 8 that are close to each other are all connected to the projection screen 6 contact;

The cleaning mechanism includes a cleaning box 9, two cleaning rotating shafts 10, a cleaning motor 11, two cleaning rollers 12 and a U-shaped positioning block 13, and the cleaning box 9 is fixedly installed on the bottom of the winding box 1. The cleaning rotating shaft 10 is all rotatably installed in the cleaning box 9, and one end of the corresponding cleaning rotating shaft 10 extends to the outside of the cleaning box 9, and the cleaning motor 11 is fixedly installed on one side outer wall of the cleaning box 9, and the cleaning motor The output shaft of 11 is fixedly connected with one end of the corresponding cleaning rotating shaft 10, and the two cleaning rotating rollers 12 are respectively fixedly sleeved on the two cleaning rotating shafts 10, and the said U-shaped positioning block 13 is fixedly installed in the cleaning box 9, The bar-shaped counterweight 5 is adapted to the U-shaped positioning block 13 .

As shown in Figures 2 and 3, the closing mechanism includes a maintenance cover 14, a cavity 15, a circular block 16, a pull rod 17, a telescopic spring 18 and a clamping rod 19, and the maintenance cover 14 is hingedly mounted on the winding box 1 On one side of the outer wall, the cavity 15 is opened on the winding box 1, the circular block 16 is arranged in the cavity 15, and the pull rod 17 is fixedly installed on the bottom of the circular block 16, and the pull rod 17 The bottom end of the telescopic spring 18 extends to the outside of the winding box 1 and is slidably connected with the winding box 1. The telescopic spring 18 is slidably sleeved on the pull rod 17, and the top of the telescopic spring 18 is fixedly connected with the bottom of the circular block 16. The bottom end of the telescopic spring 18 is fixedly connected to the bottom inner wall of the cavity 15, and the clamping rod 19 is fixedly mounted on the top of the circular block 16;

By providing a closing mechanism, the maintenance cover 14 can be fixed simply and effectively, and it is convenient to maintain the device when a failure occurs.

As shown in Figures 1 and 2, a plurality of bristles are fixedly installed on the two cleaning rollers 12, and the plurality of bristles are evenly distributed on the two cleaning rollers 12, and the corresponding bristles are all aligned with the projection The curtains 6 are in contact;

By setting the bristles, it is possible to simply and effectively cooperate with the cleaning roller 12 to clean the dust attached to the projection screen 6 .

As shown in Figures 1 and 2, the bottom of the winding box 1 is provided with a strip-shaped slot, and the projection screen 6 runs through the strip-shaped slot and is adapted to the strip-shaped slot;

By setting the strip-shaped slots, the projection screen 6 can be easily and effectively passed through.

As shown in Figure 2, a plurality of reinforcement rods are fixedly installed on the inner wall of the cleaning box 9, and one end of the plurality of reinforcement rods that are close to each other is fixedly connected with the U-shaped positioning block 13;

By arranging the reinforcing rod, the U-shaped positioning block 13 can be fixed simply and effectively without affecting the discharge.

As shown in Figure 2, the bottom of the maintenance cover 14 is provided with a circular slot, and the top of the lever 19 extends into the circular slot and fits into the circular slot;

By providing a circular locking groove, it is possible to simply and effectively cooperate with the locking rod 19 to fix the maintenance cover 14 .

As shown in Figure 1 and Figure 2, a belt pulley 20 is fixedly sheathed on the two cleaning rotating shafts 10, and a timing belt 21 is wound on the two belt pulleys 20;

By setting the belt pulley 20 and the timing belt 21 , the two cleaning rollers 12 can be rotated simply and effectively, so as to remove dust from both sides of the projection screen 6 .

The working principle of the projection screen rolling device provided by the utility model is as follows:

The first step: when the projection screen 6 needs to be rolled up, start the winding motor 3, the winding motor 3 drives the winding shaft 2 to rotate, the winding shaft 2 drives the winding roller 4 to rotate, and the winding roller 4 pairs with the projection screen 6 for rewinding, two flattening rollers 8 can flatten the projection screen 6 to avoid wrinkles, the projection screen 6 drives the strip weight 5 to move upwards, starts the cleaning motor 11, and the cleaning motor 11 drives the cleaning shaft 10 Rotate, under the action of belt pulley 20 and synchronous belt 21, two cleaning rotating shafts 10 rotate, and two cleaning rotating shafts 10 drive two cleaning rotating rollers 12 to rotate, thereby carry out double-sided dust removal to projection screen 6;

The second step: when a fault occurs and the device needs to be repaired, pull the pull rod 17 downward, and the pull rod 17 drives the circular block 16 to move downward, and the circular block 16 makes the telescopic spring 18 in a compressed state, which is convenient for subsequent reset. The block 16 drives the clamping rod 19 to move downwards, so that the clamping rod 19 breaks away from the circular groove, thereby opening the maintenance cover 14, and the device is maintained.

It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described clearly. On the premise that those skilled in the art understand the principles of the above-mentioned utility model, they can clearly know the details of its power mechanism, power supply system and control system. The control method of the application document is automatically controlled by the controller, and the control circuit of the controller is passed Simple programming by those skilled in the art can be realized;

The standard parts used in it can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding in the prior art. , the machinery, parts and equipment all adopt conventional models in the prior art, and the components known to those skilled in the art, their structures and principles are known to those skilled in the art through technical manuals or known through conventional experimental methods.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , Replacement and modification or direct or indirect application, in other relevant technical fields, the scope of the present invention is defined by the appended claims and their equivalents, all of which are equally included in the patent protection scope of the present invention.

Claims (7)

1. The utility model provides a projection curtain cloth take-up device which characterized in that includes:

the winding box is provided with a winding floating mechanism, a cleaning mechanism and a closing mechanism;

the winding and leveling mechanism comprises a winding rotating shaft, a winding motor, a winding roller, a bar-shaped balancing weight, a projection curtain, two leveling rotating shafts and two leveling rotating rollers, the winding rotating shaft is rotatably installed in a winding box, one end of the winding rotating shaft extends out of the winding box, the winding motor is fixedly installed on the outer wall of one side of the winding box, an output shaft of the winding motor is fixedly connected with one end of the winding rotating shaft, the winding roller is fixedly sleeved on the winding rotating shaft, the bar-shaped balancing weight is arranged below the winding box, the projection curtain is wound on the winding roller, the bottom of the projection curtain extends out of the winding box and is fixedly connected with the top of the bar-shaped balancing weight, the two leveling rotating shafts are rotatably installed in the winding box, the two leveling rotating rollers are fixedly sleeved on the two leveling rotating shafts respectively, and one sides of the two leveling rotating rollers, which are close to each other, are contacted with the projection curtain;

the cleaning mechanism comprises a cleaning box, two cleaning rotating shafts, a cleaning motor, two cleaning rotating rollers and a v-shaped locating block, the cleaning box is fixedly installed at the bottom of the winding box, the two cleaning rotating shafts are rotatably installed in the cleaning box, one end of each cleaning rotating shaft extends out of the cleaning box, the cleaning motor is fixedly installed on the outer wall of one side of the cleaning box, the output shaft of the cleaning motor is fixedly connected with one end of the corresponding cleaning rotating shaft, the two cleaning rotating rollers are fixedly installed on the two cleaning rotating shafts respectively, the v-shaped locating block is fixedly installed in the cleaning box, and the bar-shaped balancing weight is matched with the v-shaped locating block.

2. The projection screen winding assembly of claim 1, wherein: the closing mechanism includes maintenance lid, cavity, circular block, pull rod, expanding spring and kelly, the maintenance lid is articulated to be installed on one side outer wall of rolling box, the cavity is seted up on the rolling box, the circular block sets up in the cavity, pull rod fixed mounting is in the bottom of circular block, the bottom of pull rod extend to outside the rolling box and with rolling box sliding connection, expanding spring sliding sleeve establishes on the pull rod, expanding spring's top and the bottom fixed connection of circular block, expanding spring's bottom and the bottom inner wall fixed connection of cavity, kelly fixed mounting is at the top of circular block.

3. The projection screen winding assembly of claim 1, wherein: two equal fixed mounting has a plurality of brush hairs on the clean roller, and is a plurality of the brush hair evenly distributed on two clean rollers corresponds the brush hair all contacts with the projection curtain.

4. The projection screen winding assembly of claim 1, wherein: the bottom of the winding box is provided with a strip-shaped slot, and the projection curtain penetrates through the strip-shaped slot and is matched with the strip-shaped slot.

5. The projection screen cloth winding device of claim 1, wherein: a plurality of reinforcing rods are fixedly mounted on the inner wall of the cleaning box, and one ends, close to each other, of the plurality of reinforcing rods are fixedly connected with the 21274and the shape positioning blocks.

6. The projection screen cloth winding device of claim 2, wherein: the bottom of the maintenance cover is provided with a circular clamping groove, and the top end of the clamping rod extends into the circular clamping groove and is matched with the circular clamping groove.

7. The projection screen cloth winding device of claim 1, wherein: two all fixed cover is equipped with the belt pulley in the clean pivot, two the winding has synchronous belt on the belt pulley.

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