CN213122586U

CN213122586U - Double-motor upward-rolling projection screen

Info

Publication number: CN213122586U
Application number: CN202022515691.2U
Authority: CN
Inventors: 余阳凯; 左耀秋
Original assignee: SHENZHEN SCREEN WORKSHOP TECHNOLOGY CO LTD
Current assignee: SHENZHEN SCREEN WORKSHOP TECHNOLOGY CO LTD
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-05-04
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses a two motor upward roll projection curtains, including cloth axle and curtain, the bottom of curtain with cloth axle fixed connection, the both ends of cloth axle are provided with the motor respectively, be connected with the assembly pulley on the motor, the motor passes through assembly pulley and slide rail sliding connection. During operation, two the motor is driving the cloth axle rotates right from the bottom of curtain the curtain carries out the rolling, and when the curtain receive and releases the curtain passes through the cloth axle drives two the motor passes through the assembly pulley is followed the slide rail removes in vertical direction, makes the motor can receive and releases the great curtain of volume through the cloth axle, and the motor passes through the assembly pulley and follows the slide rail slides, can make the curtain motion is steady.

Description

Double-motor upward-rolling projection screen

Technical Field

The utility model relates to a projection equipment technical field especially relates to a projection curtain rolls up on bi-motor.

Background

The projection screen is one of the most commonly used products in the peripheral equipment of the projector, the projection screen is the abbreviation of projection screen, if the projection screen is matched with the projector properly, the excellent projection effect can be obtained. Current projection curtain is generally that the top is fixed through the cloth axle when using, when the motor drives the cloth axle and rotates, can receive and release the cloth axle, but the curtain can rock when receiving and releasing the curtain, perhaps when the curtain is great, the curtain is more heavy, and the motor that is located the top can load when utilizing the cloth axle to carry out the rolling to the curtain great, is unfavorable for the long-time use of equipment.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses a roll up projection curtain on bi-motor can be convenient for receive and release the great projection curtain of volume to it is steady to make the projection curtain move when receiving and releasing.

The utility model discloses a two motor upward-rolling projection curtain, including cloth axle and curtain, the bottom of curtain with cloth axle fixed connection, the both ends of cloth axle are provided with the motor respectively, be connected with the assembly pulley on the motor, the motor passes through assembly pulley and slide rail sliding connection, two the motor drives the cloth axle rotates right when the curtain receive and releases the curtain passes through the cloth axle drives two the motor passes through the assembly pulley is followed the slide rail removes in vertical direction.

Furthermore, the cloth shaft is sleeved outside the motor through a rotating part and can rotate relative to the motor.

Furthermore, the pulley block is arranged inside the sliding rail, a lifting notch is arranged on the sliding rail, and the motor extends into the sliding rail through the lifting notch and is fixedly connected with the pulley block.

Furthermore, the pulley block comprises a pulley bracket, a first pulley component and a second pulley component, wherein the two first pulley components are respectively arranged at two sides of the pulley bracket and respectively abut against two inner walls opposite to the sliding rail; the second pulley component is positioned between the two first pulley components and abuts against the side wall of the sliding rail opposite to the lifting notch.

Furthermore, the first pulley assembly and the second pulley assembly respectively comprise a rotating wheel, a connecting piece and a connecting shaft, the rotating wheel is rotatably connected with the connecting shaft through the connecting piece, and the connecting shaft is fixed on the pulley support.

Further, the pulley support is fixedly connected with a fixing piece, and the motor is fixedly connected with the pulley support through the fixing piece.

Furthermore, a positioning hole is formed in the fixing piece, a positioning block is connected to the motor, and the positioning block extends into the positioning hole to position the motor.

Further, still include the installing support, the installing support includes mounting panel and shielding plate, be provided with a plurality of bar hole on the mounting panel, the set screw passes the bar hole with slide rail threaded connection is right the slide rail is fixed, the shielding plate with mounting panel fixed connection is and be located one side of slide rail.

The technical scheme of the utility model, compared with the prior art, beneficial effect is:

the two motors drive the cloth shaft to rotate to wind the curtain from the bottom of the curtain, the curtain is wound and wound by the aid of the cloth shaft, the motors drive the two motors to move in the vertical direction along the sliding rail through the pulley block when the curtain is wound and unwound, the motors can wind and unwind the curtain with a large size through the cloth shaft, the motors slide along the sliding rail through the pulley block, and the curtain can move stably.

Drawings

FIG. 1 is an exploded view of a projection screen;

an enlarged view of area a in fig. 2;

FIG. 3 is a schematic structural view of a motor connected with a slide rail through a pulley block;

FIG. 4 is a schematic view of a pulley block structure;

FIG. 5 is a schematic view of the connection of the motor to the pulley bracket via the fixing member;

FIG. 6 is a schematic structural view of a slide rail and a mounting bracket;

description of the figures

100. A projection screen; 10. a curtain; 20. cloth beam; 30. a motor; 31. a rotating member; 32. positioning blocks; 40. a slide rail; 41. a lifting gap; 50. a pulley block; 51. a pulley bracket; 52. a first sheave assembly; 521. a rotating wheel; 522. a connecting member; 523. a connecting shaft; 53. a second sheave assembly; 54. a fixing member; 541. positioning holes; 60. mounting a bracket; 61. mounting a plate; 611. a strip-shaped hole; 62. a shielding plate.

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 should be noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component or intervening components may exist. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be further noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and 2, the utility model discloses a two motor upward rolling projection curtain 100, including curtain 10, cloth axle 20, motor 30 and slide rail 40, the top of curtain 10 is fixed through the installed part, the bottom of curtain 10 with the fixed connection of cloth axle 20, the both ends of cloth axle 20 are connected with respectively motor 30, two motor 30 drives cloth axle 20 rotates right when curtain 10 receive and releases curtain 10 passes through cloth axle 20 drives two motor 30 passes through assembly pulley 50 edge slide rail 40 removes in vertical direction.

The output end of the motor 30 extends into the cloth shaft 20 and is fixedly connected with the cloth shaft 20, and the cloth shaft 20 is sleeved outside the motor 30 and is rotatably connected with the shell of the motor 30 through a rotating part 31. The two motors 30 can drive the cloth shaft 20 to rotate to fold and unfold the curtain 10. The two motors 30 are provided to enable both ends of the cloth shaft 20 to rotate simultaneously and to retract and store the curtain 10.

As shown in fig. 3, two of the slide rails 40 are respectively disposed at two sides of the cloth shaft 20, and the motor 30 is connected to the slide rails 40 through the pulley block 50 and can move along the slide rails 40 in a vertical direction through the pulley block 50. In this embodiment, the pulley block 50 is disposed inside the slide rail 40, a lifting notch 41 is disposed on one side wall of the slide rail 40, and one end of the motor 30 extends into the slide rail 40 through the lifting notch 41 and can move along the slide rail 40 in a vertical direction through the pulley block 50. The arrangement of the pulley block 50 enables the motor 30 to move stably in the vertical direction along the slide rail 40, so that the curtain 10 moves stably in the retracting process.

As shown in fig. 4, the pulley block 50 includes two pulley brackets 51, first pulley assemblies 52 and second pulley assemblies 53, the two first pulley assemblies 52 are respectively disposed on two sides of the pulley bracket 51 and respectively abut against two inner walls of the slide rail 40, so as to prevent the pulley block 50 from shaking back and forth inside the slide rail 40; the second pulley assembly 53 is located between the two first pulley assemblies 52 and abuts against the side wall of the slide rail 40 opposite to the lifting notch 41, and the second pulley assembly 53 prevents the cloth shaft 20 from swinging in the left-right direction through the motor 30.

The first pulley assembly 52 and the second pulley assembly 53 each include a rotating wheel 521, a connecting member 522 and a connecting shaft 523, the rotating wheel 521 is rotatably connected to the connecting shaft 523 through the connecting member 522, and the connecting shaft 523 is fixed to the pulley bracket 51. The rotating wheel 521 abuts against the inner wall of the sliding rail 40, so that when the pulley bracket 51 slides along the sliding rail 40 in the vertical direction, the rotating wheel 521 can rotate relative to the connecting shaft 523, and the pulley block 50 can stably move in the sliding rail 40.

As shown in fig. 5, a fixing member 54 is fixedly connected to the pulley bracket 51, and one end of the motor 30 extends into the slide rail 40 and is fixedly connected to the pulley bracket 51 through the fixing member 54.

Further, a positioning hole 541 is formed in the fixing member 54, a positioning block 32 is connected to the motor 30, and the positioning block 32 extends into the positioning hole 541 to position the motor 30. In this embodiment, the positioning hole 541 is square, and the positioning block 32 extends into the positioning hole 541, so as to prevent the motor 30 from rotating relative to the pulley block 50, and further, the motor 30 can slide along the slide rail 40 through the pulley block 50 while the motor 30 winds the curtain 10 through the cloth shaft 20.

As shown in fig. 6, further, a mounting bracket 60 is connected to the slide rail 40, and the slide rail 40 is fixed on a corresponding plane by the mounting bracket 60, the mounting bracket 60 includes a mounting plate 61 and a shielding plate 62, the mounting plate 61 is provided with a plurality of strip-shaped holes 611, and fixing screws pass through the strip-shaped holes 611 to be in threaded connection with the slide rail 40, so as to fix the slide rail 40 on the mounting plate 61. And the slide rail 40 can be adjusted and fixed on the mounting plate 61 through the strip-shaped hole 611, so as to facilitate the folding and unfolding of the curtain 10. The shielding plate 62 and the mounting panel 61 is integrated into a whole, a side of the shielding plate 62 with a side fixed connection of the mounting panel 61, and the shielding plate 62 with the mounting panel 61 mutually perpendicular, the shielding plate 62 sets up one side of the slide rail 40, it is right to be used for the slide rail 40 shelters from, is used for promoting the whole aesthetic property of the projection screen.

The present invention can be designed in various embodiments and modifications without departing from the spirit and scope of the present invention in its broadest sense, and the above-described embodiments are intended to illustrate the present invention, but not to limit the scope of the present invention.

Claims

1. The utility model provides a two motor upward-rolling projection curtain, includes cloth axle and curtain, its characterized in that, the bottom of curtain with cloth axle fixed connection, the both ends of cloth axle are provided with the motor respectively, be connected with the assembly pulley on the motor, the motor passes through assembly pulley and slide rail sliding connection, two the motor drives the cloth axle rotates right when the curtain receive and releases the curtain passes through the cloth axle drives two the motor passes through the assembly pulley is followed the slide rail removes in vertical direction.

2. The dual-motor scrolling projection screen of claim 1, wherein the cloth shaft is sleeved outside the motor by a rotating member and can rotate relative to the motor.

3. The dual-motor scrolling projection screen of claim 1, wherein the pulley block is disposed inside the slide rail, the slide rail is provided with a lifting gap, and the motor extends into the slide rail through the lifting gap and is fixedly connected with the pulley block.

4. The dual-motor rolling-up projection screen of claim 3, wherein the pulley block comprises a pulley bracket, a first pulley component and a second pulley component, and the two first pulley components are respectively arranged at two sides of the pulley bracket and respectively abut against two opposite inner walls of the slide rail; the second pulley component is positioned between the two first pulley components and abuts against the side wall of the sliding rail opposite to the lifting notch.

5. The dual-motor scrolling projection screen of claim 4, wherein the first pulley assembly and the second pulley assembly each comprise a rotating wheel, a connecting member and a connecting shaft, the rotating wheel is rotatably connected with the connecting shaft through the connecting member, and the connecting shaft is fixed on the pulley bracket.

6. The dual-motor scrolling projection screen of claim 4, wherein the pulley bracket is fixedly connected with a fixing member, and the motor is fixedly connected with the pulley bracket through the fixing member.

7. The dual-motor scrolling projection screen of claim 6, wherein the fixing member is provided with a positioning hole, the motor is connected with a positioning block, and the positioning block extends into the positioning hole to position the motor.

8. The dual-motor upward-rolling projection screen according to any one of claims 1 to 7, further comprising a mounting bracket, wherein the mounting bracket comprises a mounting plate and a shielding plate, the mounting plate is provided with a plurality of strip-shaped holes, fixing screws penetrate through the strip-shaped holes to be in threaded connection with the sliding rails to fix the sliding rails, and the shielding plate is fixedly connected with the mounting plate and located on one side of the sliding rails.