Multifunctional projection remote control electric curtain

Abstract

The utility model belongs to the technical field of projection screens, and discloses a multifunctional projection remote control electric screen which comprises a storage box and a controller, the storage box is connected with a guide shell, an inner cavity of the storage box is connected with a motor, the output end of the motor is connected with a rotating shaft, the rotating shaft is connected with a storage roller shaft, the storage roller shaft is detachably connected with a curtain, and the curtain is connected with a horizontal rod. The rotating shaft is connected with a first bevel gear and a driving wheel, the inner wall of the guide shell is rotationally connected with a screw, the screw is connected with a second bevel gear, the screw is in threaded connection with a nut seat, and the nut seat is connected with a sliding block; the side wall of the storage box is connected with a fixing box, the side wall of the working cavity is rotationally connected with a driven wheel, and the driven wheel is provided with a fixing hole. The cleaning device comprises a locking block and a mounting box, the locking block is connected with a telescopic rod, the telescopic rod is connected with a first cleaning wheel, the inner wall of the mounting box is rotationally connected with a second cleaning shaft, the second cleaning shaft is connected with a second cleaning wheel, and the mounting box and the locking block are jointly connected with a spring.

Description

Technical Field

[0001] This utility model relates to the field of projection screen technology, and in particular to a multifunctional remote-controlled electric projection screen. Background Technology

[0002] A projection screen is a device used to display visual information such as images and graphics, and is often used in conjunction with a projector. They come in various materials, commonly including white plastic screens, glass bead screens, and metal screens. Different materials differ in gain, viewing angle, and light resistance. For example, white plastic screens offer high cost-effectiveness and a wide viewing angle, while metal screens provide better light resistance and clearer image quality. Based on installation methods, they can be categorized as motorized screens, manual screens, and tripod screens, suitable for various scenarios such as home theaters, conference rooms, and classrooms. By appropriately reflecting or transmitting projector light, they make the image clearer and the colors more accurate, making them an important component of a visual display system and effectively enhancing the viewing experience.

[0003] A search revealed that CN218767792U discloses a roll-type lifting electric projection screen, comprising a storage box, bearing seats connected to the left and right sides of the inner cavity of the storage box, a winding shaft rotatably connected to the two bearing seats, a bevel gear connected to the left end of the winding shaft, a drive motor connected to the right end of the winding shaft, the drive motor being fixed to the inner wall of the storage box, a roll assembly installed on the outer wall of the winding shaft, and a projection screen wound around the outer wall of the roll assembly. A discharge port is provided at the lower end of the storage box, and a horizontal bar is connected to the end of the projection screen extending beyond the discharge port. This utility model has a reasonable structural design, which facilitates the smooth passage of the projection screen through the discharge port, helps ensure the projection effect, and is convenient and practical.

[0004] However, through exploration, the inventors have discovered that this technical solution still has at least the following drawbacks: While the solution possesses a certain cleaning ability, and the static cleaning brush can, to some extent, complete relatively simple cleaning tasks such as removing light stains and dust deposits, its cleaning power is low and its cleaning efficiency is inefficient due to limitations in the cleaning principle, requiring optimization and improvement. Utility Model Content

[0005] The present invention aims to provide a multifunctional remote-controlled electric projection screen to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multifunctional remote-controlled electric projection screen includes a storage box and a controller. The storage box is connected to a guide shell, and a motor is connected to the inner cavity of the storage box. The output end of the motor is connected to a rotating shaft, which is rotatably connected to the inner wall of the storage box. The rotating shaft is connected to a storage roller, and the storage roller is detachably connected to a screen. The screen is connected to a horizontal rod. The rotating shaft is connected to a first bevel gear and two drive wheels. A screw is rotatably connected to the inner wall of the guide shell, and a second bevel gear is connected to the screw. The second bevel gear meshes with the first bevel gear. The screw is threaded to a nut seat, and a slider is connected to the nut seat. The slider is connected to the horizontal rod. The guide shell has a sliding groove, and the slider is slidably connected to the side wall of the sliding groove.

[0008] The storage box has a fixed box connected to its side wall. There are two fixed boxes. Each fixed box has a working chamber. A driven wheel is rotatably connected to the side wall of the working chamber. The driven wheel and the driving wheel are connected to a conveyor belt. The driven wheel has a fixing hole. A cleaning device is detachably connected to the inner wall of the fixing hole.

[0009] The cleaning device includes a locking block and a mounting box. The locking block is connected to a telescopic rod, the telescopic rod is connected to a first cleaning wheel, the first cleaning wheel is connected to a first cleaning shaft, a second cleaning shaft is rotatably connected to the inner wall of the mounting box, the second cleaning shaft is connected to a second cleaning wheel, the second cleaning wheel meshes with the first cleaning wheel, the first cleaning shaft and the first cleaning wheel respectively pass through one side wall of the mounting box and are rotatably connected to the mounting box, the mounting box and the locking block are connected to a spring, and the second cleaning shaft and the first cleaning shaft are respectively connected to a brush.

[0010] Preferably, the longitudinal sections of the locking block and the fixing hole are mutually matching squares.

[0011] Preferably, the lock block and the mounting box are connected by a connecting rope, and the number of connecting ropes is two.

[0012] Preferably, a signal receiver is connected to the inner wall of the storage box, and the signal receiver is electrically connected to the motor.

[0013] Preferably, the storage box is connected to a mounting bracket.

[0014] Preferably, the storage box is hinged with a door.

[0015] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0016] (1) This technical solution uses a motor to drive a rotating shaft, which in turn moves the storage roller to raise and lower the screen. Simultaneously, the meshing of the first and second bevel gears drives a screw-driven slider to slide along a groove, achieving smooth screen raising and lowering. Furthermore, the drive wheel rotates via a conveyor belt, causing the brushes of the cleaning device to clean the screen surface, effectively removing dust and stains and improving the projection effect. This design, which integrates screen raising and lowering with cleaning functions into a single power source, not only simplifies the structure but also improves ease of use and cleaning efficiency.

[0017] (2) The locking block and the fixing hole adopt a matching square longitudinal section design to ensure that the cleaning device and the driven wheel rotate synchronously and avoid relative sliding, thereby ensuring that the brush can clean the curtain stably and effectively and improve the reliability of the cleaning effect.

[0018] (3) Two connecting ropes are set between the lock block and the mounting box. When the brush needs to be cleaned, the lock block can be pulled by the connecting ropes to disengage it from the fixing hole on the driven wheel and release the fixed state of the cleaning device.

[0019] (4) The signal receiver enables the electric screen to be remotely controlled via a remote control, allowing users to adjust the screen's raising and lowering status as needed, making operation more convenient. Simultaneously, the electrical connection between the signal receiver and the motor ensures accurate transmission and execution of control commands, enhancing the electric screen's level of intelligence.

[0020] (5) The design of the mounting bracket facilitates the installation and fixation of the electric curtain. It can be installed securely on walls, ceilings and other locations according to different usage scenarios, which enhances the adaptability and stability of the device and meets diverse usage needs.

[0021] (6) The hinged door to the storage box can effectively protect the internal structure when the curtain is stored, preventing dust and debris from entering and extending the service life of the motorized curtain. At the same time, when it is necessary to inspect or replace internal components, the door can be opened for easy operation, improving the convenience of maintenance. Attached Figure Description

[0022] Figure 1 This is a front view of the present invention;

[0023] Figure 2 A longitudinal sectional view provided for this utility model;

[0024] Figure 3 A three-dimensional structural diagram of the fixing box provided by this utility model;

[0025] Figure 4 A three-dimensional structural diagram of the fixing hole provided by this utility model;

[0026] Reference numerals: 1. Storage box; 2. Door; 3. Mounting frame; 4. Guide shell; 5. Curtain; 6. Horizontal bar; 7. Slider; 8. Motor; 9. Storage roller shaft; 10. Fixing box; 11. Drive wheel; 12. Conveyor belt; 13. Driven wheel; 14. First bevel gear; 15. Second bevel gear; 16. Screw; 17. Slide groove; 18. Nut seat; 19. Rotating shaft; 20. Mounting box; 21. First cleaning shaft; 22. Second cleaning shaft; 23. First cleaning wheel; 24. Second cleaning wheel; 25. Telescopic rod; 26. Spring; 27. Locking block; 28. Connecting rope; 29. ​​Fixing hole; 30. Signal receiver; 31. Working chamber. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0028] like Figures 1 to 4 The multi-functional remote-controlled electric projection screen shown includes a storage box 1 and a controller, such as Figure 1 As shown, a guide shell 4 is connected to the left side of the storage box 1. The guide shell 4 provides a guide track for the raising and lowering of the screen 5, ensuring the smooth operation of the screen 5. Figure 2 The storage box 1 has a motor 8 connected to the right side of its inner cavity. A rotating shaft 19 is connected to the left output end of the motor 8. The left end of the rotating shaft 19 is rotatably connected to the left inner wall of the storage box 1. The motor 8 serves as a power source, driving the rotating shaft 19 to rotate after startup, thus providing power for the opening and closing of the curtain 5 and other functions. A storage roller 9 is connected to the middle of the rotating shaft 19. The curtain 5 is detachably connected to the storage roller 9. When the rotating shaft 19 rotates, the storage roller 9 rotates accordingly, realizing the winding and unfolding of the curtain 5. A horizontal bar 6 is connected to the bottom of the curtain 5, ensuring that the curtain 5 remains flat when unfolded. A first bevel gear 14 is connected to the left side of the rotating shaft 19. Drive wheels 11 are connected to the left and right ends of the rotating shaft 19, respectively. A screw 16 is rotatably connected to the bottom inner wall of the guide housing 4. The top of the screw 16 passes through the bottom wall of the storage box 1 and is rotatably connected to the storage box 1. A second bevel gear 15 is connected to the part of the screw 16 inside the storage box 1. The first bevel gear 14 and the second bevel gear 15 mesh. When the rotating shaft 19 rotates, the first bevel gear 14 drives the second bevel gear 15 to rotate, thereby causing the screw 16 to rotate. A nut seat 18 is threadedly connected to the part of the screw 16 inside the guide housing 4. A slider 7 is connected to the right side of the nut seat 18. The slider 7 is connected to the horizontal rod 6. A groove 17 is opened on the right side wall of the guide housing 4. The slider 7 is slidably connected to the side wall of the groove 17. When the screw 16 rotates, the nut seat 18 drives the slider 7 to slide up and down within the groove 17, thereby achieving the raising and lowering of the curtain 5.

[0029] like Figure 2 As shown, the side wall of storage box 1 is connected to two fixing boxes 10, such as... Figure 3As shown, the fixed box 10 has a working cavity 31, and a driven wheel 13 is rotatably connected to the right side wall of the working cavity 31, such as... Figure 4 As shown, the driven wheel 13 has a fixing hole 29, and a cleaning device is detachably connected to the inner wall of the fixing hole 29. The driving wheel 11 drives the driven wheel 13 to rotate via the conveyor belt 12, thereby driving the cleaning device to work.

[0030] The cleaning device includes a locking block 27 and a mounting box 20, such as Figure 3 and Figure 4 As shown, a telescopic rod 25 is connected to the left side of the locking block 27, a first cleaning wheel 23 is connected to the left side of the telescopic rod 25, and a first cleaning shaft 21 is connected to the left side of the first cleaning wheel 23. A second cleaning shaft 22 is rotatably connected to the right side wall of the mounting box 20, and a second cleaning wheel 24 is connected to the left side of the second cleaning shaft 22. The second cleaning wheel 24 meshes with the first cleaning wheel 23. The first cleaning shaft 21 and the first cleaning wheel 23 respectively pass through the left side wall of the mounting box 20 and are rotatably connected to the mounting box 20. The mounting box 20 and the locking block 27 are connected together by a spring 26. Brushes are connected to the second cleaning shaft 22 and the first cleaning shaft 21 respectively. When the driven wheel 13 rotates, it drives the cleaning device to rotate. The rotation of the first cleaning wheel 23 drives the rotation of the second cleaning wheel 24 through the meshing relationship, thereby enabling the brushes on the two cleaning shafts to clean the surface of the curtain 5. The spring 26 and the telescopic rod 25 ensure that the cleaning device is always tightly connected to the driven wheel 13, ensuring the stable operation of the cleaning device.

[0031] like Figure 4 As shown, the locking block 27 and the fixing hole 29 have matching square cross-sections. This design ensures that the cleaning device and the driven wheel 13 can rotate synchronously without relative slippage, and also facilitates disassembly. Figure 3 and Figure 4 As shown, the locking block 27 and the mounting box 20 are connected by two connecting ropes 28. Pulling the connecting ropes 28 can disengage the locking block 27 from the fixing hole 29, releasing the fixed state of the cleaning device, which facilitates the installation, disassembly and maintenance of the cleaning device.

[0032] like Figure 2 As shown, a signal receiver 30 is connected to the inner wall of the right side of the storage box 1. The signal receiver 30 is electrically connected to the motor 8. The user can send a signal through the remote control. After receiving the signal, the signal receiver 30 controls the start, stop and rotation direction of the motor 8 to realize the remote control operation of the electric curtain.

[0033] like Figure 1 As shown, the top of the storage box 1 is connected to a mounting bracket 3, which is used to install and fix the electric curtain in a suitable position, such as a wall or ceiling.

[0034] like Figure 1As shown, the storage box 1 has a hinged door 2 on the front side. The door 2 can be opened and closed. When closed, it can protect the internal components of the storage box 1, such as the motor 8 and the rotating shaft 19, and prevent dust and debris from entering. When opened, it is convenient to inspect and maintain the internal components.

[0035] The specific implementation process is as follows:

[0036] In practice, the storage box 1 is first securely installed on a wall or ceiling using the mounting bracket 3, and the door 2 is hinged to protect the internal structure. During use, the user issues a command via remote control. The signal receiver 30 inside the storage box 1 receives the signal and starts the motor 8. The motor 8 drives the rotating shaft 19 to rotate, which in turn drives the storage roller 9 to unfold the curtain 5. Simultaneously, the first bevel gear 14 on the rotating shaft 19 meshes with the second bevel gear 15 on the screw 16, driving the screw 16 to rotate. This causes the nut seat 18 to drive the slider 7 to slide smoothly within the groove 17 of the guide housing 4, ensuring smooth raising and lowering of the curtain 5. When it is necessary to retract the curtain 5, the remote control is used again to start the motor 8 in reverse, and the curtain 5 begins to retract. At this time, the drive wheel 11 drives the driven wheel 13 to rotate via the conveyor belt 12. The first cleaning wheel 23 and the second cleaning wheel 24 of the cleaning device mesh with each other, driving the brush to clean the curtain 5 synchronously. If the cleaning device needs to be disassembled for maintenance, pull the connecting rope 28 to overcome the elasticity of the spring 26, causing the telescopic rod 25 to shorten and the locking block 27 to disengage from the fixing hole 29 of the driven wheel 13, allowing the cleaning device to be quickly removed. After maintenance, align the cleaning device with the fixing hole 29 and insert it. Under the action of the spring 26, the locking block 27 will automatically engage with the fixing hole 29, achieving quick installation. Finally, completely store the curtain 5 into the storage box 1, close the door 2, and the operation is complete.

[0037] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A multi-functional remote-controlled electric projection screen, characterized in that: The device includes a storage box (1) and a controller. The storage box (1) is connected to a guide shell (4). A motor (8) is connected to the inner cavity of the storage box (1). A rotating shaft (19) is connected to the output end of the motor (8). The rotating shaft (19) is rotatably connected to the inner wall of the storage box (1). A storage roller (9) is connected to the rotating shaft (19). A curtain (5) is detachably connected to the storage roller (9). A horizontal bar (6) is connected to the curtain (5). A first bevel gear (14) and a drive wheel (11) are connected to the rotating shaft (19). The number of driving wheels (11) is two. A screw (16) is rotatably connected to the inner wall of the guide shell (4). The screw (16) is connected to a second bevel gear (15). The second bevel gear (15) meshes with the first bevel gear (14). The screw (16) is threadedly connected to a nut seat (18). The nut seat (18) is connected to a slider (7). The slider (7) is connected to a horizontal rod (6). The guide shell (4) has a sliding groove (17). The slider (7) is slidably connected to the side wall of the sliding groove (17). The storage box (1) has a fixed box (10) connected to its side wall. There are two fixed boxes (10). Each fixed box (10) has a working chamber (31). A driven wheel (13) is rotatably connected to the side wall of the working chamber (31). The driven wheel (13) and the driving wheel (11) are connected to a conveyor belt (12). The driven wheel (13) has a fixing hole (29). A cleaning device is detachably connected to the inner wall of the fixing hole (29). The cleaning device includes a locking block (27) and a mounting box (20). The locking block (27) is connected to a telescopic rod (25). The telescopic rod (25) is connected to a first cleaning wheel (23). The first cleaning wheel (23) is connected to a first cleaning shaft (21). The inner wall of the mounting box (20) is rotatably connected to a second cleaning shaft (22). The second cleaning shaft (22) is connected to a second cleaning wheel (24). The second cleaning wheel (24) meshes with the first cleaning wheel (23). The first cleaning shaft (21) and the first cleaning wheel (23) respectively penetrate one side wall of the mounting box (20) and are rotatably connected to the mounting box (20). The mounting box (20) and the locking block (27) are connected to a spring (26). The second cleaning shaft (22) and the first cleaning shaft (21) are respectively connected to a brush.

2. The multifunctional projection remote-controlled electric screen as described in claim 1, characterized in that: The longitudinal sections of the locking block (27) and the fixing hole (29) are matching squares.

3. The multifunctional remote-controlled electric projection screen as described in claim 1, characterized in that: The locking block (27) and the mounting box (20) are connected by a connecting rope (28), and there are two connecting ropes (28).

4. The multifunctional projection remote-controlled electric screen as described in claim 1, characterized in that: The inner wall of the storage box (1) is connected to a signal receiver (30), which is electrically connected to the motor (8).

5. A multi-functional remote-controlled electric projection screen as described in claim 1, characterized in that: The storage box (1) is connected to a mounting bracket (3).

6. A multifunctional projection remote-controlled electric screen as described in claim 1, characterized in that: The storage box (1) is hinged with a door (2).

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