CN210947220U

CN210947220U - Automatic turning device of anti-sound board

Info

Publication number: CN210947220U
Application number: CN201921755051.XU
Authority: CN
Inventors: 郝春燕
Original assignee: Beijing Bette Shengdi Technology Development Co ltd
Current assignee: Beijing Bette Shengdi Technology Development Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-07-07
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses an automatic turning device of an acoustic baffle, which is connected with a lifting device suspended above a stage; including mount, anti-sound board, upset portion, first loose pulley assembly and wire rope, top-down interval is provided with fixed hinge seat, second loose pulley assembly and activity hinge on the mount, the anti-sound board is the arc, upset portion with first loose pulley assembly sets up respectively the both ends of one side that the anti-sound board is close to its centre of a circle, the activity hinge joint be in first loose pulley assembly with on the anti-sound board between the upset portion, wire rope's one end with fixed hinge seat links to each other, wire rope's the other end bypass first loose pulley assembly with second loose pulley assembly with upset portion links to each other. The advantages are that: the turnover angle of the sound reflecting plate can be automatically adjusted according to different performance requirements, and the quality and the efficiency of the performance work of the concert are improved.

Description

Automatic turning device of anti-sound board

Technical Field

The utility model relates to a stage performance is anti-acoustic cover and is adjusted the field, especially relates to an automatic turning device of anti-acoustic board.

Background

With the development of diversity of performance forms, the goals of performance shows are updated day by day, and facilities for theaters are required to have various forms. In order to meet the use requirements of rapid change of multiple use forms of a large theater, the device is provided with the automatic turning function of the sound reflecting plate, so that the labor intensity of workers for adjusting the position and the angle of the sound reflecting plate is greatly reduced in the process of changing the multiple performance forms, the working efficiency is improved, and the novelty of rapid change of the theater function is particularly met.

There is a diversity in the form of performances for large theaters, and changes to other performances such as operas and concerts are often made within one theater.

When playing opera, the performance needs to be performed in an open stage space, and the sound reverberation time is short and is usually between 1.0 and 1.2. And when a concert is performed, the reverberation time of the sound is required to be longer and is often between 1.7 and 2.0, so that the stage is required to be provided with the sound reflection cover system, and the sound is adjusted to have proper reflection time and angle, so that the musical performance has better audio-visual effect.

The sound reflection cover is composed of a sound reflection plate upper piece, a rear piece and a side piece, wherein the sound reflection plate upper piece is usually stored above the stage and is controlled by a lifting winch. When the anti-sound cover is required to be formed, the upper pieces of the anti-sound plates are lowered to a certain height above the stage, and then the turning angles of the anti-sound plates are adjusted to proper positions according to the performance mode, so that the performance quality is better improved.

For the sound dome system, fast changes are required to achieve the sound effect of the performance. The side piece and the back piece do not need angle regulation, but to the piece of going up, need adjust different angles according to the performance, if use manual regulation, the weight of piece of going up is bigger, and the power that the piece used in the upset also needs very greatly, adjusts moreover and tests sound effect after the different angles, then readjusts and tests, leads to field work personnel work load greatly increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic turning device of anti-sound board to solve the aforementioned problem that exists among the prior art.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

an automatic turning device of an acoustic baffle, wherein the turning device is connected with a lifting device hung above a stage; including mount, anti-sound board, upset portion, first loose pulley assembly and wire rope, top-down interval is provided with fixed hinge seat, second loose pulley assembly and activity hinge on the mount, the anti-sound board is the arc, upset portion with first loose pulley assembly sets up respectively the both ends of one side that the anti-sound board is close to its centre of a circle, the activity hinge joint be in first loose pulley assembly with on the anti-sound board between the upset portion, wire rope's one end with fixed hinge seat links to each other, wire rope's the other end bypass first loose pulley assembly with second loose pulley assembly with upset portion links to each other.

Preferably, the distance between the movable hinge shaft and the overturning part is smaller than the distance between the movable hinge shaft and the first pulley block.

Preferably, the first pulley block comprises at least two pulleys, namely a first pulley and a second pulley, and the first pulley and the second pulley are sequentially arranged at intervals along the direction from the movable hinge shaft to the turnover part.

Preferably, the second pulley assembly comprises at least two pulleys, namely a third pulley and a fourth pulley, and the third pulley and the fourth pulley are sequentially arranged at intervals from top to bottom.

Preferably, one end of the steel wire rope is connected with the fixed twisting seat, and the other end of the steel wire rope sequentially bypasses the third pulley, the first pulley, the fourth pulley and the second pulley and is connected with the overturning part.

Preferably, the overturning part comprises a motor, a winch and a limiting device, the motor is connected with the winch, the winch is connected with the steel wire rope, and the limiting device is arranged on the winch.

Preferably, the turning device further comprises a portable controller, and the portable controller is wirelessly connected with the motor.

The utility model has the advantages that: 1. the utility model discloses can realize adjusting the rotation angle of anti-acoustic plate according to the performance needs of difference through operation portable controller, improve the quality and the efficiency of concert performance work. 2. The utility model discloses the installation principle is clear, and the regulative mode is simple light, all can realize in ordinary big theater, has fine installation suitability and transform nature.

Drawings

Fig. 1 is a schematic structural view of a folding structure of an acoustic baffle in an embodiment of the present invention;

fig. 2 is a schematic structural view illustrating the deployment of the baffle plate in the turnover device according to the embodiment of the present invention.

In the figure: 1. a lifting device; 2. a fixed mount; 3. a sound baffle; 4. fixing the twisting seat; 5. a movable hinge shaft; 6. a first pulley; 7. a second pulley; 8. a third pulley; 9. a fourth pulley; 10. a wire rope; 11. a motor; 12. a hoisting machine.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

As shown in fig. 1 to 2, the present embodiment provides an automatic turning device of an anti-sound board 3, which is connected to a lifting device 1 suspended above a stage; including mount 2, anti-sound board 3, upset portion, first loose pulley assembly and wire rope 10, top-down interval is provided with fixed hinge seat 4, second loose pulley assembly and activity hinge 5 on the mount 2, anti-sound board 3 is the arc, the upset portion with first loose pulley assembly sets up respectively the both ends of one side that anti-sound board 3 is close to its centre of a circle, activity hinge 5 is connected first loose pulley assembly with on the anti-sound board 3 between the upset portion, wire rope 10's one end with fixed hinge seat 4 links to each other, wire rope 10's the other end is walked around first loose pulley assembly with second loose pulley assembly with the upset portion links to each other.

In this embodiment, a distance between the movable hinge shaft 5 and the turning part is smaller than a distance between the movable hinge shaft 5 and the first pulley block. And the movable hinge shaft 5 is arranged at the lowest end of the fixed frame 2. The bottom end of the fixing bracket is prevented from contacting the anti-sound board 3, so that the turnover angle of the anti-sound board 3 is limited.

In this embodiment, the first pulley block includes at least two pulleys, which are a first pulley 6 and a second pulley 7, respectively, and the first pulley 6 and the second pulley 7 are sequentially disposed at intervals along the direction from the movable hinge shaft 5 to the turning part.

In this embodiment, the second pulley assembly includes at least two pulleys, which are a third pulley 8 and a fourth pulley 9, and the third pulley 8 and the fourth pulley 9 are sequentially arranged at intervals from top to bottom.

In this embodiment, one end of the steel wire rope 10 is connected to the fixed hinge base 4, and the other end of the steel wire rope 10 sequentially passes around the third pulley 8, the first pulley 6, the fourth pulley 9 and the second pulley 7 and is connected to the turning part.

In this embodiment, the number of the pulleys in the first pulley block and the second pulley block can be set according to actual conditions, and the steel wire rope 10 is wound around the pulleys in the first pulley block and the second pulley block alternately.

In this embodiment, the turning part includes a motor 11, a winch 12 and a limiting device, the motor 11 is connected to the winch 12, the winch 12 is connected to the steel wire rope 10, and the limiting device is disposed on the winch 12. The limiting device can limit the rotation of the winch 12 after the steel wire rope 10 is wound on the winding drum of the winch 12 to reach the required length, so that the accurate control of the turning angle of the anti-sound board 3 is realized.

In this embodiment, the motor 11 rotates forward and backward to control the steel wire rope 10 to be wound on the winding drum of the winding drum 12 or to be unwound from the winding drum of the winding drum 12, so as to fold or unfold the anti-sound plate 3. The number of turns of the steel wire rope 10 wound on the winding drum of the winding drum 12 or the number of turns of the steel wire rope 10 stretched from the winding drum of the winding drum 12 is further realized by controlling the number of turns of the motor 11, and the control of the turning angle of the anti-sound board 3 is further realized.

In this embodiment, the turning device further includes a portable controller, and the portable controller is wirelessly connected to the motor 11. The operator does not need to manually drive the anti-sound board 3 to turn over, and can control the folding, unfolding or turning angle of the anti-sound board 3 only by operating the portable controller to control the forward and reverse rotation and the number of rotation turns of the motor 11.

In this embodiment, when the anti-sound board 3 needs to be used, the turning device is firstly moved up and down to a designated position by the lifting device 1, an operator controls the motor 11 by operating the portable controller, the motor 11 rotates forward, the motor 11 drives the winch 12 to work, the steel wire rope 10 is driven by the winch 12 to stretch out from the winding drum of the winch 12, when the stretched length of the steel wire rope 10 reaches the designated length, the limiting device limits the winding drum to rotate, and the anti-sound board 3 is opened.

In this embodiment, when the anti-sound board 3 needs to be collected, the operator controls the motor 11 through operating the portable controller, the motor 11 rotates reversely, the motor 11 drives the winch 12 to work, the steel wire rope 10 is wound on the winding drum of the winch 12 under the driving of the winch 12, after the winding length of the steel wire rope 10 reaches the specified length, the limiting device limits the winding drum to rotate, the anti-sound board 3 is collected, and then the turnover device is moved to the specified position through the lifting device 1.

In this embodiment, when stage performance is carried out to needs, set up a plurality of turning devices simultaneously, realize a plurality of anti-sound board 3's automatic control, when anti-sound board 3 overturns the angle of needs, real-time test sound effect to according to the appropriate upset angle of adjustment anti-sound board 3 of sound effect, with the sound effect that satisfies stage performance needs.

Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect:

the utility model provides an automatic turning device of an acoustic baffle, which can adjust the turning angle of the acoustic baffle according to different performance requirements by operating a portable controller, thereby improving the quality and efficiency of the performance work of a concert; and simultaneously, the utility model discloses the installation principle is clear, and the regulative mode is simple light, all can realize at ordinary big theater, has fine installation suitability and transform nature.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.

Claims

1. An automatic turning device of an acoustic baffle, wherein the turning device is connected with a lifting device hung above a stage; the method is characterized in that: including mount, anti-sound board, upset portion, first loose pulley assembly and wire rope, top-down interval is provided with fixed hinge seat, second loose pulley assembly and activity hinge on the mount, the anti-sound board is the arc, upset portion with first loose pulley assembly sets up respectively the both ends of one side that the anti-sound board is close to its centre of a circle, the activity hinge joint be in first loose pulley assembly with on the anti-sound board between the upset portion, wire rope's one end with fixed hinge seat links to each other, wire rope's the other end bypass first loose pulley assembly with second loose pulley assembly with upset portion links to each other.

2. The automatic flipping device of anti-sound board of claim 1, wherein: the distance between the movable hinge shaft and the overturning part is smaller than the distance between the movable hinge shaft and the first pulley block.

3. The automatic flipping device of anti-sound board of claim 2, characterized in that: the first pulley block comprises at least two pulleys which are respectively a first pulley and a second pulley, and the first pulley and the second pulley are sequentially arranged at intervals along the direction from the movable hinge shaft to the turnover part.

4. The automatic flipping device of anti-sound board of claim 3, wherein: the second pulley component comprises at least two pulleys, namely a third pulley and a fourth pulley, and the third pulley and the fourth pulley are sequentially arranged at intervals from top to bottom.

5. The automatic flipping device of anti-sound board of claim 4, wherein: one end of the steel wire rope is connected with the fixed twisting seat, and the other end of the steel wire rope sequentially bypasses the third pulley, the first pulley, the fourth pulley and the second pulley and is connected with the overturning part.

6. The automatic flipping device of anti-sound board of claim 5, wherein: the overturning part comprises a motor, a winch and a limiting device, the motor is connected with the winch, the winch is connected with the steel wire rope, and the limiting device is arranged on the winch.

7. The automatic flipping device of anti-sound board of claim 6, wherein: the turnover device further comprises a portable controller, and the portable controller is in wireless connection with the motor.