Clutch type film lifting curtain

Abstract

The utility model belongs to the technical field of movie curtain lifting, and particularly relates to a clutch type movie lifting curtain which comprises a first protective shell, and a driving motor is fixedly connected to the inner side wall of the first protective shell. The output end of the driving motor is fixedly connected with a driving turntable; meshing teeth are arranged on the side wall of the rotating rod, and a driven rotating disc is meshed with the side wall of the meshing teeth; a clamping sleeve is connected to the side wall of the rotating rod in a sliding manner; a second fixing rod is fixedly connected to the inner side wall of the first protection shell, and a rotating block is rotationally connected to the side wall of the second fixing rod. According to the utility model, the driving motor is arranged to provide power for the rising of the curtain, and the clutch assembly composed of the driving rotating disc, the driven rotating disc, the meshing teeth, the rotating block and the first fixing rod is arranged to control the power output state of the lifter, so that the flexibility and convenience of the traditional film curtain are improved, and the accuracy of the height control of the curtain is improved.

Description

Technical Field

[0001] This utility model belongs to the field of movie screen lifting technology, specifically a clutch-type movie screen lifting device. Background Technology

[0002] A movie screen is a piece of hardware in a cinema. The projector projects the image onto the screen, and the audience watches directly from the screen. This has several effects on the movie viewing experience, the most important being the quality of the movie picture, including brightness, color reproduction, and contrast, as well as distractions from potential flaws in the screen. Movie screens generally have adjustable height.

[0003] Most existing movie screens use electric motors for power, and the screen is wound up by a rotating rod at the motor output end, thus achieving screen height control. The structure is relatively simple and the cost is low. However, movie screens driven directly by electric motors have the problem of inaccurate screen height control.

[0004] Therefore, this utility model provides a clutch-type movie screen lift. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A clutch-type movie lift screen of this utility model includes a first protective shell, a drive motor fixedly connected to the inner wall of the first protective shell; an active turntable fixedly connected to the output end of the drive motor; a rotating rod rotatably connected to the inner wall of the first protective shell, and the rotating rod is positioned corresponding to the active turntable; meshing teeth are provided on the side wall of the rotating rod, and a driven turntable meshes with the side wall of the meshing teeth; a clamping sleeve is slidably connected to the side wall of the rotating rod, and... The clamping sleeve is sized to correspond to the driven turntable; a second fixing rod is fixedly connected to the inner wall of the first protective shell, and a rotating block is rotatably connected to the side wall of the second fixing rod; a first fixing rod is fixedly connected inside the rotating block; this step provides power for the screen to rise by setting a drive motor, and controls the power output state of the lift by setting a clutch assembly composed of an active turntable, a driven turntable, meshing teeth, a rotating block, and a first fixing rod, thereby improving the flexibility and convenience of traditional movie screens and helping to improve the accuracy of screen height control.

[0007] Preferably, a hydraulic cylinder is fixedly connected to the inner wall of the first protective shell; a pull rod is provided at the output end of the hydraulic cylinder, and the pull rod is rotatably connected to the first fixed rod; a damping block is fixedly connected to the inner wall of the first protective shell, and the rotating rod is rotatably connected inside the damping block; the pull rod is made of flexible material; this step completes the screen lifting and lowering action by setting the damping block and the hydraulic cylinder to assist the drive motor, so that the movie screen can be smoothly lowered under the action of gravity, which improves the practicality of the clutch-type movie screen and enhances the stability of the lifter.

[0008] Preferably, a support frame is fixed to the inner wall of the first protective shell, and the support frame is positioned corresponding to the clamping sleeve; a return spring is fixed to the side wall of the support block, and the end of the return spring contacts the side wall of the driven turntable; a support block is provided on the side wall of the support frame, and the support block is positioned corresponding to the size and position of the rotating rod; this step provides additional support for the rotating rod by setting the support frame and support block, which enhances the load-bearing capacity of the rotating rod, helps to prevent the rotating rod from shifting due to the weight of the screen, and improves the stability and durability of the clutch-type movie screen.

[0009] Preferably, a second protective shell is provided at the end of the first protective shell, and the second protective shell is sized to correspond to the first protective shell; a screw is provided between the first protective shell and the second protective shell; this step provides convenience for the user's installation work by setting a detachable shell composed of the first protective shell and the mounting plate, which is conducive to improving installation efficiency and reducing maintenance difficulty.

[0010] Preferably, a mounting plate is fixedly attached to the top of the first protective shell, the two mounting plates are symmetrically arranged, and the mounting plates are provided with mounting holes; this step enhances the overall integrity of the clutch-type curtain lift by fixing the mounting plate to the top of the first protective shell, improves the structural strength of the lift, thereby extending its service life and reducing the shaking of the lift.

[0011] Preferably, a positioning piece is fixed to the side wall of the rotating rod, and the two positioning pieces are symmetrically arranged; this step positions the curtain by setting the positioning piece, thereby preventing the curtain from being misaligned during the winding process, and improving the practicality and stability of the clutch-type curtain lifter.

[0012] Preferably, a positioning groove is provided on the side wall of the active turntable, and the positioning groove is set to correspond to the size of the rotating rod; this step improves the stability and durability of the lifting device by positioning the rotating rod by opening a positioning groove on the side wall of the active turntable, which is conducive to extending the service life.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The clutch-type movie screen lift of this utility model provides power for the screen to rise by setting a drive motor, and controls the power output state of the lift by setting a clutch assembly consisting of an active turntable, a driven turntable, meshing teeth, a rotating block and a first fixed rod, thereby improving the flexibility and convenience of traditional movie screens and improving the accuracy of screen height control.

[0015] 2. The clutch-type movie screen described in this utility model completes the screen lifting action by setting a damping block and a hydraulic cylinder to assist the drive motor, so that the movie screen descends smoothly under the action of gravity, which improves the practicality of the clutch-type movie screen and enhances the stability of the lifter. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the second protective shell in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the first protective shell in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the transfer rod in this utility model;

[0021] Figure 5 This is a schematic diagram of the support block in this utility model.

[0022] In the diagram: 1. First protective shell; 2. Mounting plate; 3. Second protective shell; 4. Rotating rod; 5. Positioning plate; 6. Drive motor; 7. Hydraulic cylinder; 8. Active turntable; 9. Driven turntable; 10. Meshing teeth; 11. Pull rod; 12. Clamping sleeve; 13. Rotating block; 14. First fixing rod; 15. Second fixing rod; 16. Support frame; 17. Support block; 18. Damping block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5As shown, an embodiment of the present invention provides a clutch-type movie screen lift, comprising a first protective shell 1, a drive motor 6 fixedly connected to the inner wall of the first protective shell 1; an active turntable 8 fixedly connected to the output end of the drive motor 6; a rotating rod 4 rotatably connected to the inner wall of the first protective shell 1, and the rotating rod 4 is positioned corresponding to the active turntable 8; a meshing tooth 10 is provided on the side wall of the rotating rod 4, and a driven turntable 9 meshes with the side wall of the meshing tooth 10; a clamping sleeve 12 is slidably connected to the side wall of the rotating rod 4, and the clamping sleeve 12 is sized corresponding to the driven turntable 9; the first A second fixing rod 15 is fixedly connected to the inner wall of the protective shell 1, and a rotating block 13 is rotatably connected to the side wall of the second fixing rod 15; a first fixing rod 14 is fixedly connected inside the rotating block 13; during operation, the clamping sleeve 12 maintains contact with the driven turntable 9. At this time, the power of the drive motor 6 can be transmitted to the rotating rod 4 through the friction between the driven turntable 9 and the driving turntable 8. The user can release the contact relationship between the driven turntable 9 and the driving turntable 8 by moving the first fixing rod 14, thereby causing the rotating rod 4 to descend under the weight of the curtain. During the process, whenever it is necessary to... To raise or lower the screen, the user can drive the drive motor 6 to raise the screen. Additionally, a pulling force can be applied to the first fixed rod 14. When the first fixed rod 14 is pulled, the rotating block 13 will rotate and apply pressure to the clamping sleeve 12, causing the clamping sleeve 12 to separate, ultimately lowering the movie screen. In the normal state, the driven turntable 9 and the driving turntable 8 are in contact. Whenever the driving turntable 8 rotates, the driven turntable 9 will rotate synchronously. Because the corresponding position of the rotating rod 4 is provided with meshing teeth 10, and the meshing teeth 10... The driven turntable 9 is engaged with the driven turntable 8, and the rotating rod 4 will also rotate synchronously with the active turntable 8. The second fixed rod 15 connects the pull rod 11 and the rotating block 13, and the first protective shell 1 provides fixation. This step provides power for the screen to rise by setting the drive motor 6. By setting a clutch assembly composed of the active turntable 8, the driven turntable 9, the meshing gear 10, the rotating block 13, and the first fixed rod 14, the power output state of the lift is controlled, which improves the flexibility and convenience of traditional movie screens and helps to improve the accuracy of screen height control.

[0026] like Figures 2 to 5As shown, a hydraulic cylinder 7 is fixedly connected to the inner wall of the first protective shell 1; a pull rod 11 is provided at the output end of the hydraulic cylinder 7, and the pull rod 11 is rotatably connected to the first fixed rod 14; a damping block 18 is fixedly connected to the inner wall of the first protective shell 1, and the rotating rod 4 is rotatably connected inside the damping block 18; the pull rod 11 is made of flexible material; during operation, the operator can drive the hydraulic cylinder 7 to apply a pulling force to the first fixed rod 14 by driving the pull rod 11, which is made of flexible material and located at the output end of the hydraulic cylinder 7, thereby causing... The driven turntable 9 and the driving turntable 8 are in close contact. In addition, since a counterweight is provided at the bottom of the movie screen, when the clutch assembly of the movie screen is in the disengaged state, the damping block 18 connected to the side wall of the rotating rod 4 can use friction to make the rotating rod 4 descend relatively smoothly. This step completes the screen lifting and lowering action by setting the damping block 18 and the hydraulic cylinder 7 to assist the drive motor 6, so that the movie screen descends smoothly under the action of gravity, which improves the practicality of the clutch-type movie screen and enhances the stability of the lifter.

[0027] like Figure 5 As shown, a support frame 16 is fixedly connected to the inner wall of the first protective shell 1, and the support frame 16 is positioned corresponding to the clamping sleeve 12; a support block (17) is provided on the side wall of the support frame 16; a return spring is fixedly connected to the side wall of the support block 17, and the end of the return spring contacts the side wall of the driven turntable 9; the support block 17 is provided on the side wall of the support frame 16, and the support block 17 is positioned corresponding to the size and position of the rotating rod 4; during operation, the support frame 16 and the support block 17 positioned corresponding to the clamping sleeve 12 can be used without affecting the normal operation of the clamping sleeve 12. In motion, the rotating rod 4 is supported, thereby enhancing its load-bearing capacity and stability. A return spring is installed between the support block 17 and the driven turntable 9. During normal operation, the return spring continuously applies pressure to the clamping sleeve 12, causing the clamping sleeve 12 to contact the driven turntable 9. This step provides additional support to the rotating rod 4 by setting up the support frame 16 and the support block 17, enhancing its load-bearing capacity and helping to prevent the rotating rod 4 from shifting due to the weight of the screen, thus improving the stability and durability of the clutch-type movie screen.

[0028] like Figure 1 and Figure 2As shown, a second protective shell 3 is provided at the end of the first protective shell 1, and the second protective shell 3 is sized to correspond to the first protective shell 1. A screw is provided between the first protective shell 1 and the second protective shell 3. During operation, the operator can first install the first protective shell 1 and connect the screen to the side wall of the rotating rod 4. Finally, the second protective shell 3 is installed at the end of the first protective shell 1 with screws, thus completing the installation of the clutch-type movie screen. This step provides convenience for the user's installation work by setting a detachable shell composed of the first protective shell 1 and the mounting plate 2, which helps to improve installation efficiency and reduce maintenance difficulty.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a mounting plate 2 is fixedly attached to the top of the first protective shell 1. The two mounting plates 2 are symmetrically arranged, and each mounting plate 2 has a mounting hole. During operation, the operator can use expansion screws to fix the two symmetrically arranged mounting plates 2 in a predetermined position, thereby installing the first protective shell 1 and its connected components in the predetermined position. This step enhances the overall integrity of the clutch-type movie screen components by fixing the mounting plate 2 to the top of the first protective shell 1, improves the structural strength of the lifter, extends its service life, and reduces the shaking of the lifter.

[0030] like Figures 2 to 4 As shown, a positioning piece 5 is fixed to the side wall of the rotating rod 4, and the two positioning pieces 5 are symmetrically arranged. During operation, the operator can use the two symmetrically arranged positioning pieces 5 as a reference to connect the screen to the rotating rod 4. In daily use, the two positioning pieces 5 can prevent the screen from being misaligned during the winding process. This step, by setting the positioning pieces 5 to position the screen, prevents the screen from being misaligned during the winding process, thereby improving the practicality and stability of the clutch-type movie screen.

[0031] like Figure 5 As shown, a positioning groove is provided on the side wall of the active turntable 8, and the positioning groove is set according to the size of the rotating rod 4. During operation, the end of the rotating rod 4 is always inside the positioning groove provided on the side wall of the active turntable 8. The positioning groove can work with the damping block 18 to fix the rotating rod 4, thereby making the position of the rotating rod 4 stable. This step of positioning the rotating rod 4 by providing a positioning groove on the side wall of the active turntable 8 improves the stability and durability of the lifting device and helps to extend its service life.

[0032] During operation, the clamping sleeve 12 remains in contact with the driven turntable 9. At this time, the power of the drive motor 6 is transmitted to the rotating rod 4 via the friction between the driven turntable 9 and the driving turntable 8. The user can release the contact between the driven turntable 9 and the driving turntable 8 by moving the first fixed rod 14, causing the rotating rod 4 to descend under the weight of the screen. During this process, whenever the screen needs to be raised or lowered, the user can drive the drive motor 6 to raise the screen. Additionally, a pulling force can be applied to the first fixed rod 14. When the first fixed rod 14 is pulled, the rotating block 13 will rotate and apply pressure to the clamping sleeve 12, causing the clamping sleeve 12 to separate from the screen, ultimately lowering the movie screen. In the normal state... The driven turntable 9 and the driving turntable 8 are in contact with each other. Whenever the driving turntable 8 rotates, the driven turntable 9 will rotate synchronously. Since the corresponding position of the rotating rod 4 is provided with meshing teeth 10, and the meshing teeth 10 are meshed with the driven turntable 9, the rotating rod 4 will also rotate synchronously with the driving turntable 8. The second fixed rod 15 connects the pull rod 11 and the rotating block 13, and the first protective shell 1 provides a fixing function. The operator can apply a pulling force to the first fixed rod 14 by driving the hydraulic cylinder 7, which is provided with a flexible material at the output end of the hydraulic cylinder 7, thereby making the driven turntable 9 and the driving turntable 8 in close contact. In addition, since a counterweight is provided at the bottom of the movie screen... When the clutch assembly of the movie screen is disengaged, the damping block 18 connected to the side wall of the rotating rod 4 can use friction to make the rotating rod 4 descend relatively smoothly. The support frame 16 and support block 17, which are set at the position of the clamping sleeve 12, can support the rotating rod 4 without affecting the normal movement of the clamping sleeve 12, thereby enhancing the load-bearing capacity and stability of the rotating rod 4. Among them, since a return spring is provided between the support block 17 and the driven turntable 9, the return spring can continuously apply pressure to the clamping sleeve 12 during daily operation, thereby causing the clamping sleeve 12 to contact the driven turntable 9. The operator can first complete the installation of the first protective shell 1, connect the screen to the side wall of the rotating rod 4, and finally fix it with screws. The second protective shell 3 is installed at the end of the first protective shell 1, thus completing the installation of the clutch-type movie screen. The operator can fix the two symmetrically arranged mounting pieces 2 in the predetermined position using expansion screws, thereby installing the first protective shell 1 and its connected components in the predetermined position. The operator can use the two symmetrically arranged positioning pieces 5 as a reference to connect the screen and the rotating rod 4. In daily use, the two positioning pieces 5 can prevent the screen from being misaligned during the winding process. One end of the rotating rod 4 is rotatably connected to the inside of the damping block 18, and the other end is located inside the positioning groove on the side wall of the active turntable 8. The positioning groove can cooperate with the damping block 18 to fix the rotating rod 4, thereby making the position of the rotating rod 4 stable.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clutch type movie lift curtain comprising a first protective shell (1), characterized in that: A drive motor (6) is fixedly connected to the inner wall of the first protective shell (1); an active turntable (8) is fixedly connected to the output end of the drive motor (6); a rotating rod (4) is rotatably connected to the inner wall of the first protective shell (1), and the rotating rod (4) is positioned corresponding to the active turntable (8); a meshing tooth (10) is provided on the side wall of the rotating rod (4), and a driven turntable (9) meshes with the side wall of the meshing tooth (10); a clamping sleeve (12) is slidably connected to the side wall of the rotating rod (4), and the clamping sleeve (12) is sized corresponding to the driven turntable (9); a second fixing rod (15) is fixedly connected to the inner wall of the first protective shell (1), and a rotating block (13) is rotatably connected to the side wall of the second fixing rod (15); a first fixing rod (14) is fixedly connected inside the rotating block (13).

2. A clutch-type motion picture lift curtain according to claim 1, wherein: A hydraulic cylinder (7) is fixedly connected to the inner wall of the first protective shell (1); a pull rod (11) is provided at the output end of the hydraulic cylinder (7), and the pull rod (11) is rotatably connected to the first fixed rod (14); a damping block (18) is fixedly connected to the inner wall of the first protective shell (1), and the rotating rod (4) is rotatably connected inside the damping block (18); the pull rod (11) is made of flexible material.

3. A clutch-type motion picture lift curtain according to claim 2, wherein: A support frame (16) is fixedly connected to the inner wall of the first protective shell (1), and the support frame (16) is positioned corresponding to the clamping sleeve (12); a support block (17) is provided on the side wall of the support frame (16); a return spring is fixedly connected to the side wall of the support block (17), and the end of the return spring contacts the side wall of the driven turntable (9); a support block (17) is provided on the side wall of the support frame (16), and the support block (17) is positioned corresponding to the size and position of the rotating rod (4).

4. A clutch-type motion picture lift curtain according to claim 3, wherein: The first protective shell (1) is provided with a second protective shell (3) at its end, and the second protective shell (3) is configured to correspond to the size of the first protective shell (1); a screw is provided between the first protective shell (1) and the second protective shell (3).

5. A clutch-type motion picture lift curtain according to claim 4, wherein: The top of the first protective shell (1) is fixed with a mounting plate (2), the two mounting plates (2) are arranged symmetrically, and the mounting plates (2) are provided with mounting holes.

6. A clutch-type motion picture lift curtain according to claim 1, wherein: A positioning piece (5) is fixed to the side wall of the rotating rod (4), and the two positioning pieces (5) are arranged symmetrically.

7. A clutch-type motion picture lift curtain as defined in claim 2 wherein: The active turntable (8) has a positioning groove on its side wall, and the positioning groove is set to correspond to the size of the rotating rod (4).

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