CN210121350U

CN210121350U - Rotatable overlay type dome screen and film watching system

Info

Publication number: CN210121350U
Application number: CN201920273125.XU
Authority: CN
Inventors: 王磊
Original assignee: Beijing Danghong Qitian International Culture And Technology Development Group Co Ltd
Current assignee: Beijing Danghong Qitian International Culture And Technology Development Group Co Ltd
Priority date: 2019-03-04
Filing date: 2019-03-04
Publication date: 2020-03-03
Anticipated expiration: 2029-03-04

Abstract

The utility model discloses a rotatable overlay type semispherical curtain and a film watching system, wherein the rotatable overlay type semispherical curtain comprises a semispherical curtain, a bracket, a motor, an electric capstan, a steel cable, an induction device and a controller; the hemispherical screen is fixed inside the support, the motor and the electric winch are fixed on the wall surface, one end of the steel cable is wound on the electric winch, the other end of the steel cable is hinged with the support, and the two ends of the bottom of the support are fixed on the ground; the electric capstan is connected with the motor and the induction device, the motor and the induction device are further respectively connected with the controller, and the motor drives the electric capstan to work under the control of the controller, so that the hemispherical screen rotates. The utility model discloses a controller realizes that the hemisphere curtain is rotatory, and at rotatory in-process, the rotation angle that detects electric capstan through induction system comes or the rotation targets in place, consequently, and this scheme makes things convenient for spectator's approach, and after spectator's approach, rotates through controlling the hemisphere curtain for spectator's visual angle distance is unanimous, thereby improves sight shadow effect and quality.

Description

Rotatable overlay type dome screen and film watching system

Technical Field

The utility model relates to a cinema technical field especially relates to a rotatable overlay type hemisphere curtain and sight shadow system.

Background

The spherical screen film adopts the preparation of super wide angle fisheye lens, and the screen becomes the hemisphere, and spectator is enclosed wherein, looks the screen for the vault, because the image is big and clear, extends to the back in the face of from spectator, follows the stereo audio, can make spectator have the sensation of being personally on the scene. However, in the existing dome film watching system, the film watching platform is generally horizontally arranged, and the audience is positioned on the platform to watch the front or upper image content, the film watching system has poor visual guidance, which cannot meet the increasingly improved film watching requirement of the audience, and the film watching system has a small watching range, and the part below the horizontal line of the film watching platform cannot be watched.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model discloses a main objective provides a rotatable overlay type hemisphere curtain and sight shadow system, thereby makes things convenient for spectator's approach through the rotation angle of control hemisphere curtain to after the approach, can also make spectator's visual angle distance unanimous, improve sight shadow effect and quality. In this scheme, come control motor, drive electric capstan winch through the controller to realize that the hemisphere curtain is rotatory, at rotatory in-process, whether the rotation angle through induction system detection electric capstan winch comes or the rotation targets in place, avoided the inaccurate problem of hemisphere curtain rotational position.

In order to achieve the above object, the present invention provides a first technical solution as follows:

a rotatable covering type semispherical curtain comprises a semispherical curtain, a support, a motor, an electric winch, a steel cable, an induction device and a controller;

the hemispherical curtain is fixed inside the support, the motor and the electric winch are fixed on the wall surface, one end of the steel cable is wound on the electric winch, the other end of the steel cable is hinged with the support, and the two ends of the bottom of the support are fixed on the ground; the electric capstan is connected with the motor and the induction device, the motor and the induction device are also respectively connected with the controller, and under the control of the controller, the motor drives the electric capstan to work, so that the hemispherical screen rotates.

Preferably, the rotatable covering type hemispherical screen comprises a reduction gearbox, and the motor is connected with the electric winch through the reduction gearbox.

Preferably, the rotatable covering type hemispherical screen comprises a winch supporting frame fixed on the wall surface, and the motor and the electric winch are fixed on the winch supporting frame.

Further, the sensing device comprises a sleeve, a plurality of sensing blocks and a proximity sensor; the sleeve is fixed on a rotating shaft of the electric winch, the plurality of induction blocks are fixed on the sleeve, and the proximity sensor is fixed on the winch supporting frame and located below the sleeve.

Further, the plurality of induction blocks are arranged at equal intervals along the circumferential direction of the sleeve by taking the rotating shaft as a center.

Preferably, the rotatable covering type semispherical curtain further comprises a hinge fixing seat fixed on the ground, and two ends of the bottom of the support are fixed on the hinge fixing seat through hinges.

In a second aspect, the present invention provides a film viewing system, comprising a rotatable covering dome screen, a projector, a film viewing platform fixed on the ground and a mat fixed on the film viewing platform.

The beneficial effect that above-mentioned technical scheme brought lies in:

1. according to the scheme, the controller is used for controlling the motor and driving the electric winch so as to drive the hemispherical screen to rotate, on one hand, the audience can conveniently enter the field, and on the other hand, the viewing angle of the hemispherical screen is adjusted to be consistent with the inclination angle of the seat after entering the field, so that the audience can obtain a larger viewing angle, and the viewing effect and quality are improved;

2. this scheme detects electric capstan's rotation angle through induction system to judge whether the hemisphere curtain is rotatory target in place, the accuracy is high, and the system is more stable.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a rotatable covering type dome curtain according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an induction device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a film viewing system according to a second embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "X axis", "Y axis", "Z axis", "vertical", "parallel", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplification of the description, but 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, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1, a rotatable covering type dome screen 100 includes a dome screen 1, a bracket 2, a motor 3, an electric winch 4, a wire rope 5, a sensing device 6, and a controller 7.

The hemispherical screen 1 is fixed inside the support 2, the motor 3 and the electric winch 4 are fixed on the wall surface, one end of the steel cable 5 is wound on the electric winch 4, the other end of the steel cable is hinged with the support 2, and the two ends of the bottom of the support 2 are fixed on the ground; electric capstan 4 is connected with motor 3, induction system 6, and motor 3, induction system 6 still are connected with controller 7 respectively, and under controller 7's control, motor 3 drives electric capstan 4 work, further drives steel cable 5 to make hemisphere curtain 1 rotatory, when rotatory when targetting in place, induction system 6 sends the signal for controller 7, and controller 7 sends stop signal for motor 3, accomplishes whole operation process.

In this embodiment, the controller 7 is a PLC controller, but the controller 7 may be other controllers as long as the control function can be realized.

Further, in the present embodiment, the motor 3 is connected to the electric capstan 4 through the reduction gear box 8. Specifically, the output shaft of the motor 3 is connected with the input end of the reduction gearbox 8, and the output end of the reduction gearbox 8 is connected with the rotating shaft of the electric winch 4, so that the reduction gearbox 8 receives the power transmitted by the motor 3 and drives the electric winch 4 to act.

In addition, in order to fix the motor 3 and the electric winch 4 on the wall surface, the rotatable covering type semispherical curtain further comprises a winch supporting frame 9, the winch supporting frame 9 is fixed on the wall surface, and the motor 3, the electric winch 4 and the reduction gearbox 8 are fixed on the winch supporting frame.

In addition, in order to determine whether the hemispherical screen 1 is rotated in place, in the present embodiment, referring to fig. 2, the sensing device 6 includes a sleeve 61, a plurality of sensing blocks 62, and a proximity sensor 63. Wherein, sleeve 61 cover is established on electric capstan 4's rotation axis, has fixed a plurality of response piece 62 on the sleeve 61, and proximity sensor 63 fixes on capstan winch support frame 9 and is located sleeve 61 below for detect the pulse signal that response piece 62 triggered, and then calculate the rotation angle that obtains electric capstan 4, so that the length of receiving and releasing of control steel cable 5, thereby drive hemisphere curtain 1 rotation. In this embodiment, the rotation angle of the dome screen 1 is in the range of 0 ° to 60 °, and in specific implementation, the optimum angle between the dome screen 1 and the seat may be determined in advance, so as to obtain the rotation angle of the dome screen 1. In addition, in order to facilitate the calculation process, in the present embodiment, the plurality of sensing blocks 62 are arranged at equal intervals along the circumferential direction of the sleeve 61 with the rotation axis as the center.

In this embodiment, both ends of the bottom of the frame 2 are connected to the hinge holders fixed on the ground by hinges, so that the bottom is fixed with respect to the ground when the hemispherical screen 1 rotates.

Example two

As shown in fig. 3, the present embodiment provides a viewing system 200, and the viewing system 200 includes a rotatable cover-type dome screen 100 according to one embodiment, a projector 101, a viewing platform 102, and an auditorium 103. The number of the projectors 101 is two, and the projectors are respectively fixed on the wall surface and the ground, the film viewing platform 102 is fixed on the ground, and the auditorium 103 is fixed on the film viewing platform 102. Before the audience enters the cinema, the hemispherical screen 1 is vertically arranged on the ground, so that the audience can conveniently enter, and after the audience enters the cinema, the controller 7 controls the hemispherical screen 1 to rotate, so that the viewing angle distance of the audience is consistent, and the film watching effect and quality are improved.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotatable covering type semispherical curtain comprises a semispherical curtain, and is characterized by further comprising a bracket, a motor, an electric winch, a steel cable, an induction device and a controller;

2. The rotatable covering dome curtain of claim 1, further comprising a reduction gearbox, wherein the motor is connected with the electric capstan through the reduction gearbox.

3. The rotatable covering dome screen of claim 1, further comprising a winch support frame fixed to a wall surface, wherein the motor and the motor-driven winch are fixed to the winch support frame.

4. The rotatable covering dome screen of claim 3, wherein the sensing device comprises a sleeve, a number of sensing blocks, and a proximity sensor; the sleeve is fixed on a rotating shaft of the electric winch, the plurality of induction blocks are fixed on the sleeve, and the proximity sensor is fixed on the winch supporting frame and located below the sleeve.

5. The rotatable covering dome screen of claim 4, wherein the plurality of sensing blocks are arranged at equal intervals along a circumferential direction of the sleeve centering on the rotation axis.

6. The rotatable covering type hemispherical screen as claimed in any one of claims 1 to 5, further comprising a hinge fixing seat fixed on the ground, wherein both ends of the bottom of the bracket are fixed on the hinge fixing seat through hinges.

7. A viewing system comprising the rotatable cover dome screen of any one of claims 1 to 6, a projector, a floor-mounted viewing platform and an auditorium mounted on the viewing platform.