Electric moving scene changing device

Abstract

The utility model discloses an electric type moving scene changing device. The electric type moving scene changing device comprises an unwinding shaft, a second unwinding shaft and at least one rotation driving assembly. The first unwinding shaft is used for winding one end of a curtain picture, the second unwinding shaft is used for winding the other end of the curtain picture, and the first unwinding shaft and the second unwinding shaft are parallel and are arranged in a preset mode at an interval, so that a display area is formed between the first unwinding shaft and the second unwinding shaft. The first unwinding shaft or the second unwinding shaft can be driven to be rotationally connected to the rotation driving assembly. The electric type moving scene changing device comprises a variable frequency controller, the rotation driving assembly is controllably connected to the variable frequency controller, and the variable frequency controller can be used for controlling the changing speed of the screen picture.

Description

Technical Field

[0001] The utility model relates to the field of scene changing devices, in particular to an electric scene changing device. Background Art

[0002] With the continuous development of society and the advancement of science and technology, in order to display a lot of information to more people, one way of displaying it is to display it through a curtain or an electronic display screen. However, the display effect of the electronic display screen is somewhat different from that of the traditional curtain display.

[0003] The use of electronic display screens may affect the audience's vision. Staring at the audience for a long time may cause dizziness. Therefore, for traditional stage performances, curtains may be more suitable. However, the traditional curtain replacement needs to be manually replaced. The actors need more scenes when performing, and each scene needs to be manually replaced by removing the curtain on the stage. Therefore, the interval between the previous scene and the next scene is longer, and it is difficult to achieve the expected performance effect.

[0004] In the prior art, there is another display effect, which is achieved by combining a projection device with an electronic display without moving the screen. The projection device reflects the content to be projected through the screen, but this display method may result in unclear projected images, and the image projected by the projector can only be fully displayed on the screen when the distance between the projector and the screen is controlled at the optimal distance, but this distance is difficult to control. Therefore, for traditional stage settings, the performance effect that can be achieved through the display method of the screen is better. Utility Model Content

[0005] In order to solve the above technical problems and achieve an advantage of the utility model, the utility model provides an electric scene-changing device, which can automatically replace the curtain painting in a mechanical way, without the need to manually remove the curtain on the stage for replacement, so that the continuity between scenes is better and a better performance effect is achieved.

[0006] In order to achieve at least one of the above advantages of the present invention, the present invention provides an electric step-by-step scene changing device, the electric step-by-step scene changing device comprising:

[0007] a first unwinding shaft, the first unwinding shaft being used for rolling up one end of the curtain painting;

[0008] a second unwinding shaft, the second unwinding shaft being used to rewind the other end of the screen, the first unwinding shaft being parallel to the second unwinding shaft and being spaced a predetermined distance apart, so that a display area is formed between the first unwinding shaft and the second unwinding shaft;

[0009] At least one driving and rotating assembly, wherein the first unwinding shaft or the second unwinding shaft is drivably and rotatably connected to the driving and rotating assembly.

[0010] According to one embodiment of the utility model, the electric step-and-scene changing device includes a mounting frame, and the mounting frame includes a left frame and a right frame. The middle of the left frame and the right frame each form an installation space, and the left frame and the right frame are arranged in parallel and spaced a predetermined distance apart.

[0011] According to one embodiment of the utility model, the left frame and the right frame include a plurality of support members, and the plurality of support members are welded together to form the left frame and the right frame, and any one of the first unwinding shaft and the second unwinding shaft is installed in the installation space of the left frame, and the other is installed in the installation space of the right frame.

[0012] According to an embodiment of the utility model, the mounting frame further includes an upper frame, the upper frame includes a plurality of support members, the plurality of support members are welded together to form the upper frame, and the upper frame is welded to the upper ends of the left frame and the right frame.

[0013] According to an embodiment of the utility model, the electric step-and-scene changing device includes a frequency conversion controller, and the driving component is connected to the frequency conversion controller in a manner that the rotation speed can be adjusted.

[0014] According to one embodiment of the utility model, the electric step-and-scene changing device includes a whole picture component, and the whole picture component includes a flexible picture hanging component and a limiting component. The flexible picture hanging component is arranged to extend in the transverse direction, and the upper part of the entire curtain painting is connected to the flexible picture hanging component. The limiting component has a limiting groove that runs through the upper and lower parts, and the limiting groove runs through the entire limiting component laterally. The flexible picture hanging component has at least a part of a cross-sectional diameter that is larger than the transverse cross-sectional diameter of the limiting groove, and is stuck in the limiting groove from top to bottom.

[0015] According to an embodiment of the present invention, the limiting members can be detachably connected together by means of latches, and an operator can adjust the number of the limiting members according to the distance between the first unwinding shaft and the second unwinding shaft.

[0016] According to one embodiment of the utility model, the electric step-and-scene changing device includes two pairs of anti-drift parts, wherein one pair of the anti-drift parts are detachably mounted at both ends of the first unwinding shaft, and the other pair of the anti-drift parts are detachably mounted at both ends of the second unwinding shaft, and the cross-sectional diameter of the anti-drift parts is larger than the diameters of the first unwinding shaft and the second unwinding shaft.

[0017] According to an embodiment of the utility model, the electric step-and-scene changing device includes a pair of counterweights, and the pair of counterweights are respectively arranged at the bottom ends of the left frame and the right frame in the mounting frame.

[0018] These and other objects, features and advantages will be apparent from the following detailed description, accompanying drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model shows a schematic structural diagram of the electric step-by-step scene changing device.

[0020] Figure 2 A stereoscopic diagram of the electric step-by-step scene changing device of the utility model is shown.

[0021] Figure 3 The utility model shows a rear view of the electric step-by-step scene changing device.

[0022] Figure 4 A cross-sectional view of the electric step-by-step scene changing device of the utility model is shown.

[0023] Figure 5 A half-section view of the electric step-and-scene changing device of the utility model is shown.

[0024] Figure 6 A half-section view of the electric step-and-scene changing device of the utility model is shown.

[0025] Figure 7 An enlarged view of A of the electric step-by-step scene changing device of the present invention is shown. DETAILED DESCRIPTION

[0026] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0027] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0028] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0029] refer to Figures 1 to 7 According to a preferred embodiment of the utility model, an electric step-by-step scene changing device will be described in detail below. The electric step-by-step scene changing device includes a first unwinding shaft 10, a second unwinding shaft 20 and at least one driving component 30.

[0030] The first unwinding shaft 10 is used to reel in one end of the curtain picture, and the second unwinding shaft 20 is used to reel in the other end of the curtain picture. The first unwinding shaft 10 and the second unwinding shaft 20 are arranged in parallel and at a predetermined distance, and a display area is formed between the first unwinding shaft 10 and the second unwinding shaft 20 for displaying the curtain picture between the first unwinding shaft 10 and the second unwinding shaft 20, wherein the first unwinding shaft 10 or the second unwinding shaft 20 is drivably and rotatably connected to the driving assembly 30.

[0031] Those skilled in the art can understand that the curtain painting has a picture of a scene to be displayed, wherein the picture can be a picture drawn by paint or a picture on embroidery, and the present application is not limited in this respect.

[0032] The driving component 30 drives the first unwinding shaft 10 or the second unwinding shaft 20 to rotate, so as to unwind or rewind the curtain painting between the first unwinding shaft 10 and the second unwinding shaft 20, so that the curtain painting can be automatically replaced in the display area without manually removing the curtain painting on the stage for replacement, thereby improving the continuity between scenes and achieving a better performance effect.

[0033] Preferably, the driving component 30 is implemented to include a motor.

[0034] refer to Figures 1 to 5Preferably, the electric scene changing device includes two driving and rotating components 30, the first unwinding shaft 10 is drivably and rotatably connected to one of the driving and rotating components 30, and the second unwinding shaft 20 is drivably and rotatably connected to the other of the driving and rotating components 30. It can be understood that by controlling the operation of the two driving and rotating components 30, the direction of winding the curtain between the first unwinding shaft 10 and the second unwinding shaft 20 is controlled.

[0035] refer to Figures 1 to 7 The electric step-and-scene changing device further includes a mounting frame 40, and the mounting frame 40 includes a left frame 41 and a right frame 42. The middle of the left frame 41 and the right frame 42 each form an installation space, and the left frame 41 is parallel to the right frame 42 and is spaced a predetermined distance apart. Either the first unwinding shaft 10 or the second unwinding shaft 20 is installed in the installation space of the left frame 41, and the other is installed in the installation space of the right frame 42.

[0036] It can be understood that the left frame 41 and the right frame 42 include a plurality of support members, and the plurality of support members are welded together to form the left frame 41 and the right frame 42 .

[0037] Preferably, the mounting frame 40 further includes an upper frame 43 , the upper frame 43 includes a plurality of support members, and the plurality of support members are welded together to form the upper frame 43 , and the upper frame 43 is disposed at the upper ends of the left frame 41 and the right frame 42 .

[0038] More preferably, the mounting frame 40 includes a lower frame 44, the lower frame 44 includes a plurality of supporting members, the lower frame 44 is welded together by the plurality of supporting members to form the lower frame 44, and the lower frame 44 is arranged at the lower ends of the left frame 41 and the right frame 42. The lower frame 44 can raise the left frame 41 and the right frame 42, so that the display area between the first unwinding shaft 10 and the second unwinding shaft 20 is away from the ground at a predetermined distance, so that the audience can better look at the screen placed in the display area, thereby reducing the fatigue caused by the audience looking down or looking up at the screen in the display area for a long time.

[0039] refer to Figures 1 to 5In a preferred embodiment, the electric step-by-step scene changing device includes a frequency conversion controller 50, and the driving component 30 is connected to the frequency conversion controller 50 with adjustable speed control. The frequency conversion controller 50 can be remotely controlled to control the voltage and frequency of the driving component 30, thereby controlling the replacement speed of the screen. The frequency conversion controller 50 can automatically adjust the voltage and frequency of the driving component 30 according to different loads, so that the energy saving effect is more obvious, the operation effect is more stable, and the stable replacement of the screen can be ensured.

[0040] refer to Figures 1 to 7 The electric step-by-step scene changing device includes a whole picture assembly 60, specifically, the whole picture assembly 60 includes a flexible picture hanging member 61 and at least one limiting member 62. The flexible picture hanging member 61 is arranged to extend in the lateral direction, and the upper part of the entire curtain painting is connected to the flexible picture hanging member 61.

[0041] Preferably, the flexible picture hanging member 61 is implemented to include a rope, and when the curtain picture is rolled up or unrolled, the flexible picture hanging member 61 can be rolled up or unrolled on the first unrolling shaft 10 or the second unrolling shaft 20 together with the curtain picture.

[0042] The limiting member 62 is disposed at the top of the display area between the first unwinding shaft 10 and the second unwinding shaft 20 , and the limiting member 62 has a limiting groove 6201 penetrating from top to bottom.

[0043] Preferably, reference Figures 5 to 7 The limiting groove 6201 runs transversely through the entire limiting member 62, the notch of the limiting groove 6201 faces downward, and the cross-sectional diameter of at least a portion of the flexible picture hanging member 61 is larger than the transverse cross-sectional diameter of the limiting groove 6201, and is stuck in the limiting groove 6201 from top to bottom.

[0044] Specifically, the driving component 30 drives the first unwinding shaft 10 to unwind or rewind the second unwinding shaft 20, and the upper edge of the curtain painting passes through the limiting groove 6201 in the limiting member 62, and the flexible hanging member 61 fixed in the upper edge of the curtain painting is stuck in the limiting groove 6201, so that the curtain painting is hung flatly in the entire display area, which can prevent the distance between the first unwinding shaft 10 and the second unwinding shaft 20 from being too large, and the curtain painting from becoming loose in the middle due to its own weight.

[0045] In a preferred embodiment, the limiting member 62 is fixed to the lower edge of the upper frame 43 in the mounting frame 40, and the connection between the limiting member 62 and the upper frame 43 includes a reinforcing support, and the reinforcing support, the limiting member 62 and the left frame 41 or the right frame 42 are surrounded to form a frame body with a triangular cross-section, so that the limiting member 62 can be stably installed in the upper frame 43.

[0046] Preferably, the limiting members 62 can be detachably connected together by means of latches, and the operator can adjust the number of the limiting members 62 according to the distance between the first unwinding shaft 10 and the second unwinding shaft 20. Such a design can reduce costs.

[0047] refer to Figures 1 to 5 The electric scene changing device includes two pairs of anti-deviation parts 70, one pair of the anti-deviation parts 70 are detachably mounted on both ends of the first unwinding shaft 10, and the other pair of the anti-deviation parts 70 are detachably mounted on both ends of the second unwinding shaft 20. The curtain is rolled up or unrolled on the second unwinding shaft 10 and the second unwinding shaft 20 between the pair of anti-deviation parts 70.

[0048] Preferably, the anti-drift component 70 is implemented to include a baffle, and the cross-sectional area of ​​the anti-drift component 70 is larger than the diameter of the first unwinding shaft 10 and the second unwinding shaft 20. When the driving assembly 30 drives the first unwinding shaft 10 or the second unwinding shaft 20 to rewind or unwind, the anti-drift component 70 can resist the curtain painting to prevent the curtain painting from moving up or down during the rewinding or unwinding process. The anti-drift component 70 can make the curtain painting rewind or unwind according to a predetermined trajectory, making the curtain painting more stable when it is replaced in the display area.

[0049] refer to Figures 1 to 5 The electric step-and-change scene device includes a pair of counterweights 80. The pair of counterweights 80 are respectively arranged at the bottom ends of the left frame 41 and the right frame 42 in the mounting frame 40.

[0050] Preferably, the counterweight 80 is implemented to include a plate with a certain weight. The weight of the counterweight 80 can be adjusted according to the bearing force of the two side edges of the electric step-changing device, so that the center of gravity of the electric step-changing device is always in the center position, so that the bearing force of the two side edges of the electric step-changing device is the same, and the electric step-changing device will not fall over due to uneven force, thereby improving the safety of the electric step-changing device.

[0051] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. An electric step-by-step scene changing device, characterized in that: The electric step-by-step scene changing device comprises: a first unwinding shaft, the first unwinding shaft being used for rolling up one end of the curtain painting; a second unwinding shaft, the second unwinding shaft being used to rewind the other end of the screen, the first unwinding shaft being parallel to the second unwinding shaft and being spaced a predetermined distance apart, so that a display area is formed between the first unwinding shaft and the second unwinding shaft; A rotation driving assembly, wherein the first unwinding shaft or the second unwinding shaft is drivably and rotatably connected to the rotation driving assembly.

2. The electric step-by-step scene changing device according to claim 1, characterized in that: The electric step-and-scene changing device comprises a mounting frame, which comprises a left frame and a right frame. A mounting space is formed in the middle of each of the left frame and the right frame. The left frame is parallel to the right frame and is spaced a predetermined distance apart.

3. The electric step-by-step scene changing device according to claim 2, characterized in that: The left frame and the right frame include a plurality of support members, and the plurality of support members are welded together to form the left frame and the right frame. Any one of the first unwinding shaft and the second unwinding shaft is installed in the installation space of the left frame, and the other is installed in the installation space of the right frame.

4. The electric step-by-step scene changing device according to claim 3, characterized in that: The mounting frame further includes an upper frame, which includes a plurality of support members, and the plurality of support members are welded together to form the upper frame, and the upper frame is installed on the upper ends of the left frame and the right frame.

5. The electric step-by-step scene changing device according to claim 1, characterized in that: The electric step-and-scene changing device comprises a frequency conversion controller, and the driving component is connected to the frequency conversion controller in a speed-adjustable manner.

6. The electric step-by-step scene changing device according to claim 1, characterized in that: The electric scene changing device comprises a whole picture component, which comprises a flexible picture hanging member and at least one limiting member. The flexible picture hanging member is arranged to extend in a transverse direction, and the upper part of the entire curtain picture is connected to the flexible picture hanging member.

7. The electric scene changing device according to claim 6, characterized in that: The limiting member has a limiting groove running through the limiting member from top to bottom, and the limiting groove runs through the entire limiting member transversely. The flexible picture hanging member has at least a portion of a cross-sectional diameter larger than the transverse cross-sectional diameter of the limiting groove and is stuck in the limiting groove from top to bottom.

8. The electric step-by-step scene changing device according to claim 7, characterized in that: The limiting members can be detachably connected together via latches, and an operator can adjust the number of the limiting members according to the distance between the first unwinding shaft and the second unwinding shaft.

9. The electric step-by-step scene changing device according to claim 1, characterized in that: The electric step-and-scene changing device includes two pairs of anti-drift parts, one pair of which is detachably mounted on the upper and lower ends of the first unwinding shaft, and the other pair of which is detachably mounted on the upper and lower ends of the second unwinding shaft. The cross-sectional diameter of the anti-drift parts is larger than the diameter of the first unwinding shaft and the second unwinding shaft.

10. The electric step-by-step scene changing device according to claim 3, characterized in that: The electric step-and-scene changing device comprises a pair of counterweights, which are respectively arranged at the bottom ends of the left frame and the right frame in the mounting frame.

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