A lifting and hanging rotating screen device

Abstract

The utility model discloses a lifting and hanging rotating screen device, including a winch, a steel wire rope, a pulley block, a truss, a reduction motor and a rotating assembly. One end of the steel wire rope is wound on the winch, and the other end is wound on the pulley block and fixedly connected to the truss to suspend the truss in the air. The reduction motor is installed on the truss, and the motor shaft of the reduction motor is connected to the rotating assembly. The reduction motor is used to drive the rotating assembly to connect through the motor shaft, and the rotating assembly is used to connect with the screen, so as to drive the screen to rotate through the rotating assembly. The utility model can stably drive the screen to lift and rotate, meet the application requirements of different scenarios, and improve the user experience. The structure is simple, the components are few, and a base is not required to realize the rotation of the screen.

Description

Technical Field

[0001] The utility model relates to the technical field of screen accessories, in particular to a lifting and lowering hanging type rotating screen device. Background Art

[0002] Traditional screens are generally fixed and cannot be raised, lowered or rotated. For theaters or performances, screens are sometimes needed to project patterns, such as common silver screens or other common white curtains. When the screen is fixed, it cannot meet the needs of adjusting the screen direction and height according to different viewing angles of the audience at different locations, that is, it cannot adjust the screen direction and height according to the common scene conditions, resulting in poor user experience.

[0003] In the prior art, although some display screens can be rotated and lifted, they often require the use of complex lifting and rotating parts, and are often used in display devices including a display screen and a base. They are not suitable for screens used for hanging on stages. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a liftable suspended rotating screen device, which can solve the problems described in the background technology.

[0005] The technical solution for achieving the purpose of the utility model is: a liftable suspended rotating screen device, including a winch, a wire rope, a pulley block, a truss, a reduction motor and a rotating assembly, one end of the wire rope is wound on the winch, and the other end is wound around the pulley block and fixedly connected to the truss to suspend the truss in the air, the reduction motor is installed on the truss, the motor shaft of the reduction motor is connected to the rotating assembly, the reduction motor is used to drive the rotating assembly to be connected through the motor shaft, and the rotating assembly is used to connect to the screen, thereby driving the screen to rotate through the rotating assembly.

[0006] Furthermore, it comprises a plurality of pulley blocks, each of which is wound with a steel wire rope, and each pulley block is arranged in parallel and at intervals, and the steel wire ropes on different pulley blocks are connected to different positions of the truss.

[0007] Furthermore, it includes two pulley blocks, each of which is provided with a steel wire rope, and the two steel wire ropes are respectively fixedly connected to the two ends of the truss.

[0008] Furthermore, it also includes a bottom plate, which is mounted on the truss, and the reduction motor is mounted on the bottom plate, so that the reduction motor is mounted on the truss.

[0009] Further, the bottom plate is fixedly or detachably mounted on the truss, and the reduction motor is fixedly or detachably mounted on the bottom plate.

[0010] Furthermore, the rotating assembly includes a connecting piece, a support plate, a slewing support bearing, a bearing spacer, a base cover plate, a bearing group, a bearing mounting seat and a rotating main shaft, the motor shaft is connected to the rotating main shaft, one end of the motor shaft extends into the inner hole of the rotating main shaft and is connected to the rotating main shaft, one end of the rotating main shaft can rotate relative to the truss and is connected to the truss, and the other end extends to the outside of the truss and passes through the inner holes of the slewing support bearing and the support plate in sequence, the support plate is fixed on the truss, the slewing support bearing is installed on the support plate, and is between the truss and the slewing support bearing The outer ring of the rotary support shaft is fixedly connected to the support plate by bolts and other fixing parts, the rotating main shaft passes through the inner ring of the rotary support shaft, the base sealing plate is fixedly connected to the lower end of the support plate, and the two ends of the bearing mounting seat are respectively connected to the support plate and the base sealing plate. A first space is formed between the base sealing plate, the bearing mounting seat and the support plate, and the bearing group and the bearing spacer are installed in the first space. The bearing group includes bearings stacked in an upper and lower interval, and the bearing spacer is installed between the two bearings. The protruding end of the rotating main shaft after passing through the bearing group and the bearing spacer is used to connect with the screen.

[0011] Furthermore, the protruding end is connected to a connecting rod, and the connecting rod is used to be connected to a screen.

[0012] Furthermore, the extended end is directly connected to the screen.

[0013] Furthermore, one end of the motor shaft extending into the inner hole of the rotating main shaft is connected to the rotating main shaft via an A-type flat key.

[0014] Furthermore, one end of the rotating main shaft is movably connected to the lower end of the truss, and the support plate is fixed to the truss through a connecting piece.

[0015] Beneficial effects of the utility model: The utility model can stably drive the screen to rise and fall and rotate, and can drive the screen to rise and fall alone, or drive the screen to rotate alone, or drive the screen to rise and fall and rotate synchronously, so as to better meet the application requirements of different scenarios and improve the user experience. In addition, the slewing support bearing can avoid the tilting effect caused by the axial force, radial force and tilting moment generated by the rotation, and stably maintain the rotation of the screen. It uses common trusses (commonly used for mounting stages), bearings, reduction motors and other components, with a simple structure and fewer components, and does not require a base to achieve the rotation of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of some components of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of some components of the utility model;

[0019] In the figure, 1 is winch, 2 is wire rope, 3 is pulley block, 4 is truss, 5 is reduction motor, 6 is connecting shaft, 7 is load-bearing frame, 8 is screen, 9 is bottom plate, 10 is connecting piece, 11 is support plate, 14 is motor shaft, 15 is slewing support bearing, 16 is bearing spacer, 17 is base cover plate, 18 is bearing group, 19 is bearing mounting seat, 20 is rotating main shaft. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific implementation plans:

[0021] like Figure 1-Figure 3 As shown, a device for a liftable suspended rotating screen 8 includes a winch 1, a wire rope 2, a pulley block 3, a truss 4, a reduction motor 5 and a rotating assembly. One end of the wire rope 2 is wound around the winch 1, and the other end is wound around the pulley block 3 and fixedly connected to the truss 4 to suspend the truss 4 in the air. The reduction motor 5 is installed on the truss 4, and the motor shaft 14 of the reduction motor 5 is connected to the rotating assembly. The reduction motor 5 is used to drive the rotating assembly to be connected through the motor shaft 14, and the rotating assembly is used to connect to the screen 8, thereby driving the screen 8 to rotate through the rotating assembly.

[0022] For example, when the device is applied on a stage, the winch 1 can be installed above the stage. The stage generally carries a load-bearing frame, the winch 1 can be installed on the load-bearing frame, and the pulley block 3 can also be installed on the load-bearing frame.

[0023] The winch 1 lifts and lowers the truss 4 by winding and releasing the wire rope 2, thereby achieving the lifting and lowering of the truss 4, so that the screen 8 connected to the rotating assembly can follow the lifting and lowering of the rotating assembly installed on the truss 4.

[0024] In an optional embodiment, multiple pulley blocks 3 are included, each pulley block 3 is wound with a steel wire rope 2, and each pulley block 3 is arranged in parallel and spaced apart, and the steel wire ropes 2 on different pulley blocks 3 are connected to different positions of the truss 4. For example, Figure 1 In the embodiment, two pulley blocks 3 are provided, and a steel wire rope 2 is provided on each of the two pulley blocks 3. The two steel wire ropes 2 are fixedly connected to the two ends of the truss 4 respectively.

[0025] In an optional embodiment, a base plate 9 is further included. The base plate 9 is fixedly or detachably mounted on the truss 4 . The reduction motor 5 is fixedly or detachably mounted on the base plate 9 , so that the reduction motor 5 is mounted on the truss 4 .

[0026] The rotating assembly includes a connecting member 10, a support plate 11, a slewing support bearing 15, a bearing spacer 16, a base cover plate 17, a bearing group 18, a bearing mounting seat 19 and a rotating main shaft 20. The motor shaft 14 is connected to the rotating main shaft 20. One end of the motor shaft 14 extends into the inner hole of the rotating main shaft 20 and is connected to the rotating main shaft 20 through an A-type flat key, so that the rotating main shaft 20 and the motor shaft 14 rotate synchronously. One end of the rotating main shaft 20 is movably connected to the lower end of the truss 4, and the rotating main shaft 20 can rotate relative to the truss 4. The other end extends to the outside of the truss 4 and passes through the inner holes of the slewing support bearing 15 and the support plate 11 in sequence. The support plate 11 is fixed to the truss 4 through the connecting member 10, and the connecting member 10 can be an M12 column. The slewing support bearing 15 is installed on the support plate 11 and is between the truss 4 and the slewing support bearing 15. The outer ring of the rotating support shaft is fixedly connected to the support plate 11 by bolts and other fixing parts, and the rotating main shaft 20 passes through the inner ring of the rotating support shaft, so that the rotating main shaft 20 can rotate relative to the rotating support shaft (that is, the outer ring of the rotating support shaft). The rotating support shaft is used to withstand the axial force, radial force and tilting moment generated by the rotation of the rotating main shaft 20 and the synchronous motor shaft 14, thereby preventing jamming and tilting during rotation.

[0027] The base cover plate 17 is fixedly connected to the lower end of the support plate 11, and the two ends of the bearing mounting seat 19 are respectively connected to the support plate 11 and the base cover plate 17. A first space is formed between the base cover plate 17, the bearing mounting seat 19 and the support plate 11. The bearing group 18 and the bearing spacer 16 are installed in the first space. The bearing group 18 includes bearings stacked in an upper and lower interval, and the bearing spacer 16 is installed between two bearings. The rotating main shaft 20 passes through the bearing group 18 and the bearing spacer 16 and is fixedly connected to the connecting rod (not shown in the figure), so that the connecting rod can rotate synchronously with the rotating main shaft 20. The connecting rod is used to connect the screen 8. The connecting rod is also equipped with a connecting shaft 6 and a load-bearing frame 7. The connecting shaft 6 is sleeved on the connecting rod, and the load-bearing frame 7 is fixed on the connecting shaft 6. The screen 8 is fixedly installed on the load-bearing frame 7. The screen 8 can be connected and installed on the load-bearing frame 7 with a larger contact area through the load-bearing frame 7, which is convenient for installation.

[0028] Of course, the rotating main shaft 20 can also be directly connected to the screen 8 after passing through the bearing group 18 and the bearing spacer 16, thereby directly driving the screen 8 to rotate.

[0029] The utility model can stably drive the screen 8 to rise and fall and rotate, and can drive the screen 8 to rise and fall alone, or drive the screen 8 to rotate alone, or drive the screen 8 to rise and fall and rotate synchronously, so as to better meet the application requirements of different scenarios and improve the user experience. In addition, the slewing support bearing 15 can avoid the overturning effect caused by the axial force, radial force and overturning moment generated by the rotation, and stably maintain the rotation of the screen 8. Using common trusses 4 (commonly used for mounting stages), bearings, reduction motors 5 and other components, the structure is simple, with fewer components, and no base is required to realize the rotation of the screen 8.

[0030] The embodiment disclosed in this specification is only an example of the unilateral features of the utility model, and the protection scope of the utility model is not limited to this embodiment. Any other functionally equivalent embodiments fall within the protection scope of the utility model. For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A lifting and hanging rotating screen device, characterized in that: It includes a winch, a wire rope, a pulley block, a truss, a reduction motor and a rotating component. One end of the wire rope is wound on the winch, and the other end is wound around the pulley block and fixedly connected to the truss to suspend the truss in the air. The reduction motor is installed on the truss, and the motor shaft of the reduction motor is connected to the rotating component. The reduction motor is used to drive the rotating component to be connected through the motor shaft, and the rotating component is used to connect to the screen, thereby driving the screen to rotate through the rotating component.

2. The liftable suspended rotating screen device according to claim 1, characterized in that: It comprises a plurality of pulley blocks, each of which is wound with a steel wire rope, and the pulley blocks are arranged in parallel and at intervals, and the steel wire ropes on different pulley blocks are connected to different positions of the truss.

3. The liftable suspended rotating screen device according to claim 1, characterized in that: It comprises two pulley blocks, each of which is provided with a steel wire rope, and the two steel wire ropes are respectively fixedly connected to the two ends of the truss.

4. The liftable suspended rotating screen device according to claim 1, characterized in that: The utility model also comprises a bottom plate, which is mounted on the truss and the reduction motor is mounted on the bottom plate, so that the reduction motor is mounted on the truss.

5. The liftable suspended rotating screen device according to claim 4, characterized in that: The bottom plate is fixedly or detachably mounted on the truss, and the reduction motor is fixedly or detachably mounted on the bottom plate.

6. The liftable suspended rotating screen device according to claim 1, characterized in that: The rotating assembly includes a connecting piece, a support plate, a slewing support bearing, a bearing spacer, a base sealing plate, a bearing group, a bearing mounting seat and a rotating main shaft. The motor shaft is connected to the rotating main shaft. One end of the motor shaft extends into the inner hole of the rotating main shaft and is connected to the rotating main shaft. One end of the rotating main shaft can rotate relative to the truss and is connected to the truss, and the other end extends to the outside of the truss and passes through the slewing support bearing and the inner hole of the support plate in sequence. The support plate is fixed on the truss. The slewing support bearing is installed on the support plate and is between the truss and the slewing support bearing. The outer ring of the slewing support shaft is fixedly connected to the support plate by bolts. The rotating main shaft passes through the inner ring of the slewing support shaft. The base sealing plate is fixedly connected to the lower end of the support plate. The two ends of the bearing mounting seat are respectively connected to the support plate and the base sealing plate. A first space is formed between the base sealing plate, the bearing mounting seat and the support plate. The bearing group and the bearing spacer are installed in the first space. The bearing group includes bearings stacked in an upper and lower interval. The bearing spacer is installed between the two bearings. The protruding end of the rotating main shaft after passing through the bearing group and the bearing spacer is used to be connected to the screen.

7. The liftable suspended rotating screen device according to claim 6, characterized in that: The extended end is connected to a connecting rod, and the connecting rod is used to be connected to a screen.

8. The liftable suspended rotating screen device according to claim 6, characterized in that: The extended end is directly connected to the screen.

9. The liftable suspended rotating screen device according to claim 6, characterized in that: One end of the motor shaft extending into the inner hole of the rotating main shaft is connected with the rotating main shaft through an A-type flat key.

10. The liftable suspended rotating screen device according to claim 6, characterized in that: One end of the rotating main shaft is movably connected to the lower end of the truss, and the supporting plate is fixed on the truss through a connecting piece.

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