Lifting device for adjusting theater acoustic effect

Abstract

The invention discloses a lifting device for adjusting theater acoustic effect, which comprises mounting hangers fixed on two sides of a building wall, the bottoms of the two mounting hangers are respectively fixed with two ends of a connecting rod, two ends of the connecting rod are fixedly hung with housings through connecting fasteners, each housing is internally and fixedly provided with a mounting bracket, and the mounting brackets are fixedly connected with the connecting rod through connecting fasteners. A tubular motor is fixed to the upper portion of each mounting support, a winding drum is fixed between output shafts of the two tubular motors, and the upper end of an acoustic felt is fixed to the winding drum and used for winding the acoustic felt. A fixed roller is fixed between the left sides of the lower portions of the two installation supports, a rotary guide roller for guiding lifting of the acoustic felt is rotatably connected between the right sides of the lower portions of the two installation supports, the lower end of the acoustic felt surrounds a bottom carrier roller located below the rotary guide roller and then is fixed to the fixed roller, and a balance weight roller is hung at the bottom of the bottom carrier roller. The lifting device further comprises an electrical control system, and the electrical control system is used for controlling the two tubular motors so as to control lifting and stopping of the acoustic felt.

Description

Technical Field

[0001] The present invention belongs to the technical field of theater architecture and acoustic engineering, and in particular relates to a lifting device for adjusting the acoustic effect of a theater, which can adjust the position of acoustic felt to change the reverberation time and acoustic effect in the theater. Background Art

[0002] In modern theater design, acoustics are a crucial factor influencing the performance experience. The use of sound-absorbing materials, such as felt, within the theater effectively regulates reverberation time. However, existing acoustic adjustment devices are mostly fixed installations, lacking flexibility and making it difficult to quickly adjust their position or effects to suit performance needs. To meet the demands of diverse performance scenarios, existing solutions rely primarily on manual operation or complex mechanical structures, which not only require lengthy adjustments but also present operational instability. Therefore, there is an urgent need for an acoustic adjustment device with a simple structure and convenient operation to meet the diverse needs of theaters. Summary of the Invention

[0003] In response to the problems and shortcomings of the existing technology, the present invention provides a lifting device for adjusting the acoustic effects of a theater, which is used to adjust the position of acoustic felt in the theater, thereby changing the reverberation time and acoustic effects. The lifting device has a compact structure and is easy to install. It can quickly respond to different performance requirements and achieve precise adjustment.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The present invention provides a lifting device for adjusting the acoustic effect of a theater, which is characterized in that it includes mounting brackets fixed on the left and right sides of a building wall, the bottoms of the two mounting brackets are respectively fixed to the two ends of a connecting rod, the two ends of the connecting rod are respectively fixed with a cover shell by connecting fasteners, a mounting bracket is fixed in each of the cover shells, a tubular motor is fixed to the upper part of each mounting bracket, a reel is fixed between the output shafts of the two tubular motors, the upper end of the acoustic felt is fixed on the reel and is used to wind the acoustic felt, a fixed roller is fixed between the lower left sides of the two mounting brackets, and a rotating guide roller for guiding the lifting of the acoustic felt is rotatably connected between the lower right sides, the lower end of the acoustic felt is fixed to the fixed roller after wrapping around the bottom roller located below the rotating guide roller, and a counterweight roller is hung on the bottom of the bottom roller.

[0006] The lifting device also includes an electrical control system, which is used to start and control the synchronous operation of the two tubular motors, thereby controlling the lifting and lowering of the acoustic felt, and controlling the two tubular motors to pause synchronously after the acoustic felt is lifted and lowered to a specified position.

[0007] Preferably, a felt guide piece is provided on a section tangent to the acoustic felt on the opposite side of the bottom roller.

[0008] Preferably, each of the mounting brackets is fixed to the building wall via a chemical anchor bolt.

[0009] Preferably, each of the mounting brackets includes a triangular fixing bracket, a hanging rod is fixed to the bottom of each triangular fixing bracket, the triangular fixing bracket is fixed to the building wall, and the bottoms of the two hanging rods are respectively fixed to the two ends of the connecting rod.

[0010] Preferably, each of the connecting fasteners adopts a clamp structure to fix the cover shell to the connecting rod.

[0011] Preferably, each of the cover shells is made of aluminum.

[0012] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0013] The positive progress effect of the present invention is:

[0014] 1. High flexibility: Through electric drive, the position of the acoustic felt can be quickly adjusted during the performance and the reverberation time can be adjusted.

[0015] 2. Good stability: The design of the bottom roller and felt guide piece ensures the stability of the felt during the lifting process, avoiding shaking or deviation.

[0016] 3. Compact structure: The overall device has a simple structure and occupies little space, making it suitable for installation in different theaters.

[0017] 4. Easy to operate: The electrical control system makes the operation simple. The user only needs to control the switch to raise or lower the acoustic felt.

[0018] 5. Precise adjustment: The tension provided by the counterweight roller keeps the acoustic felt straight during operation, ensuring consistent sound absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A side view of a lifting device for adjusting the acoustic effect of a theater according to a preferred embodiment of the present invention.

[0020] Figure 2 This is a top side view of a lifting device for adjusting the acoustic effects of a theater according to a preferred embodiment of the present invention.

[0021] Figure 3 A bottom side view of a lifting device for adjusting the acoustic effect of a theater according to a preferred embodiment of the present invention.

[0022] Figure 4This is a front view of a lifting device for adjusting the acoustic effect of a theater according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0024] like Figures 1 to 4 As shown, this embodiment provides a lifting device for adjusting the acoustic effect of a theater, which includes mounting brackets 1 fixed on the left and right sides of a building wall, the bottoms of the two mounting brackets 1 are respectively fixed to the two ends of a connecting rod 2, and the two ends of the connecting rod 2 are respectively fixed with a cover 4 through connecting fasteners 3, and a mounting bracket 5 is fixed in each cover 4, and a tubular motor 6 is fixed to the upper part of each mounting bracket 5, and a reel 7 is fixed between the output shafts of the two tubular motors 6, and the upper end of an acoustic felt 8 is fixed on the reel 7 and is used to wind the acoustic felt 8, a fixed roller 9 is fixed between the lower left sides of the two mounting brackets 5, and a rotating guide roller 10 for guiding the lifting and lowering of the acoustic felt 8 is rotatably connected between the lower right sides, and the lower end of the acoustic felt 8 is fixed to the fixed roller 9 after wrapping around the bottom roller 11 located below the rotating guide roller 10, and a counterweight roller 12 is hung on the bottom of the bottom roller 11.

[0025] The lifting device also includes an electrical control system, which is used to start and control the synchronous operation of the two tubular motors 6, thereby controlling the lifting and lowering of the acoustic felt 8, and controlling the two tubular motors 6 to pause synchronously after the acoustic felt 8 is lifted to a specified position.

[0026] A felt guide piece 13 is provided on a tangent surface on the opposite side of the bottom roller 11 and tangent to the acoustic felt 8 .

[0027] Each mounting bracket 1 is fixed to a building wall 15 via a chemical anchor bolt 14 .

[0028] Each mounting bracket 1 includes a triangular fixing bracket 101 , and a hanging rod 1011 is fixed to the bottom of each triangular fixing bracket 101 . The triangular fixing bracket 101 is fixed to the building wall 15 , and the bottoms of the two hanging rods 1011 are respectively fixed to the two ends of the connecting rod 2 .

[0029] Each connecting fastener uses a clamp structure to fix the cover 4 on the connecting rod 2.

[0030] Each cover 4 is made of aluminum.

[0031] The specific installation, debugging and control steps are as follows:

[0032] Step 1: Position determination and fixation of the mounting bracket 1. According to the specific requirements of the acoustic profession, determine the installation position of the acoustic felt 8, and use chemical anchors 14 to firmly fix the mounting bracket 1 on the building wall 15 to ensure the stability and safety of the device.

[0033] Step 2: Assemble the components, assemble the cover 4, mounting bracket 5, tubular motor 6, reel 7, fixed roller 9, rotating guide roller 10, bottom roller 11, felt guide plate 13, acoustic felt 8 and other parts. The initial position of the acoustic felt 8 is the highest position and is wound on the reel 7.

[0034] Step 3: Fix the assembled components to the mounting bracket 1 through the connecting fasteners 3 to ensure the straightness and verticality of the device.

[0035] Step 4: Equipment debugging. After the installation is completed, the wiring electrical control system is debugged, and the device is started to manipulate the lifting of the acoustic felt 8. Observe whether its operation is smooth and without shaking, and ensure that the acoustic felt 8 is in a vertical state during the lifting process.

[0036] Step 5: Use electrical control, cooperate with sound receiving and analysis software, and operate the device through the electrical control system to achieve smooth lifting and lowering of the acoustic felt 8 to meet the acoustic requirements of different performances.

[0037] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A lifting device for adjusting the acoustic effect of a theater, characterized in that: The cam is fixed to the left and right sides of the building wall, and the bottoms of the two mounting brackets are respectively fixed to the two ends of the connecting rod, and the two ends of the connecting rod are respectively fixed with a cover shell by connecting fasteners. A mounting bracket is fixed in each of the cover shells, and a tubular motor is fixed on the upper part of each mounting bracket. A reel is fixed between the output shafts of the two tubular motors, and the upper end of the acoustic felt is fixed on the reel and is used to wind the acoustic felt. A fixed roller is fixed between the lower left parts of the two mounting brackets, and a rotating guide roller for guiding the lifting of the acoustic felt is rotatably connected between the lower right parts. The lower end of the acoustic felt is fixed to the fixed roller after surrounding the bottom roller located below the rotating guide roller, and a counterweight roller is hung on the bottom of the bottom roller. The lifting device also includes an electrical control system, which is used to start and control the synchronous operation of the two tubular motors, thereby controlling the lifting and lowering of the acoustic felt, and controlling the two tubular motors to pause synchronously after the acoustic felt is lifted and lowered to a specified position.

2. The lifting device for adjusting the acoustic effect of a theater according to claim 1, characterized in that: A felt guide piece is provided on a tangent surface on the opposite side of the bottom roller and tangent to the acoustic felt.

3. The lifting device for adjusting the acoustic effect of a theater according to claim 1, characterized in that: Each of the mounting brackets is fixed to the building wall via chemical anchor bolts.

4. The lifting device for adjusting the acoustic effect of a theater according to claim 1, characterized in that: Each of the mounting brackets comprises a triangular fixing bracket, a hanging rod is fixed to the bottom of each triangular fixing bracket, the triangular fixing bracket is fixed to the building wall, and the bottoms of the two hanging rods are respectively fixed to the two ends of the connecting rod.

5. The lifting device for adjusting the acoustic effect of a theater according to claim 1, characterized in that: Each of the connecting fasteners uses a clamp structure to fix the cover shell on the connecting rod.

6. The lifting device for adjusting the acoustic effect of a theater according to claim 1, characterized in that: Each of the cover shells is made of aluminum.

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