Wall structure capable of automatically adjusting sound transmission effect of theater

Abstract

The invention relates to a wall structure capable of automatically adjusting the sound transmission effect of a theater, and belongs to the technical field of theater sound control. The wall structure sequentially comprises a sound pressure sensitive layer used for monitoring sound wave frequency, a balance sound absorption plate layer used for absorbing and reflecting sound waves, an adjusting structure arranged on the balance sound absorption plate layer and a foundation supporting frame from outside to inside. The balance sound absorption plate layer comprises a first frame body and a plurality of balance sound absorption plate sets. The balance sound absorption plate set comprises a reflecting plate connected with the adjusting structure and absorption plates arranged on the two opposite sides of the reflecting plate, the first frame body is provided with shielding sliding grooves for the absorption plates to be installed in a sliding mode, and the sliding directions of the reflecting plate and the absorption plates are perpendicular to each other. The absorption area, exposed out of the shielding sliding groove, of the absorption plate is adjusted. According to the invention, the sound transmission effect in the theater is improved, and the audience hearing effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of theater sound control, and in particular to a wall structure for automatically adjusting the sound transmission effect of a theater. Background Art

[0002] A theater is a performing arts venue, mainly used for performances of drama, music, dance and other art forms. It is an important platform for people to exchange ideas and share feelings.

[0003] Reverberation refers to the continuous echo of sound after it is reflected multiple times in a closed or semi-closed space before the original sound disappears. These reflected waves overlap with the direct sound signal, forming a long-lasting tail. In order to ensure the effect of the performance, the reverberation effect of the theater needs to be guaranteed when designing the theater.

[0004] Different performances require different reverberation times, for example, the reverberation time of a symphony is between 1.8 seconds and 2.2 seconds, and the reverberation time of an opera and a ballet is usually between 1.5 seconds and 1.8 seconds. After the existing theaters are built, the reverberation time is already determined, or a reflector that can be raised and lowered is installed on the top of the performance area. In the above cases, the reverberation time cannot be adjusted according to the performance form, or the adjustment effect is poor, and the performance effect needs to be improved. Summary of the invention

[0005] In order to improve the sound transmission effect in the theater and enhance the audience's hearing experience, the present application provides a wall structure that automatically adjusts the sound transmission effect of the theater.

[0006] The wall structure for automatically adjusting the sound transmission effect of a theater provided in this application adopts the following technical solution: A wall structure for automatically adjusting the sound transmission effect of a theater, comprising, from outside to inside, a sound pressure sensitive layer for monitoring the frequency of sound waves, a balanced sound absorbing board layer for absorbing and reflecting sound waves, an adjustment structure arranged on the balanced sound absorbing board layer, and a basic support frame, wherein the balanced sound absorbing board layer comprises a first frame and a plurality of balanced sound absorbing board groups; The balanced sound absorbing panel group includes a reflecting plate connected to the adjusting structure and an absorbing plate arranged on opposite sides of the reflecting plate. The first frame is provided with a shielding slide groove for sliding installation of the absorbing plate. The sliding directions of the reflecting plate and the absorbing plate are perpendicular to each other to adjust the absorption area of ​​the absorbing plate exposed to the shielding slide groove.

[0007] By adopting the above technical scheme, the reflecting plate can reflect sound waves and extend the reverberation time, and the absorbing plate can absorb sound waves and shorten the reverberation time. The reflecting plate and the absorbing plate are both slidably installed on the first frame, and the reflecting plate is driven to slide back and forth by the adjusting structure. When the reflecting plate slides back and forth, the absorbing plate is synchronously driven to slide back and forth in the shielding slide groove, so as to change the area of ​​the absorbing plate exposed to the outside world, thereby adjusting the area ratio of absorption and reflection, and adjusting the reverberation time. By setting the sound pressure sensitive layer, the sound wave frequency of the music being played can be monitored, and the sound wave size signal can be converted into an electrical signal and transmitted to the adjusting structure, so as to automatically adjust the absorption and reflection areas.

[0008] Optionally, a side of the absorption plate facing the reflection plate is provided with an abutment slope, the two abutment slopes are inclined inwardly away from the sound pressure sensitive layer, and two opposite sides of the reflection plate are provided with driving slopes that fit with the abutment slopes.

[0009] By adopting the above technical solution, a matching method of the absorption plate and the reflection plate is disclosed. The absorption plate is driven by abutting the inclined surface. The abutting inclined surface is inclined inwardly away from the sound pressure sensitive layer. Compared with the outward inclination method, it can be ensured that when the reflection plate slides backward, the absorption plate will not block the two sides of the reflection plate, thereby ensuring the stability of the reflection area.

[0010] Optionally, the absorption plate is provided with a plurality of mode grooves on the abutting inclined surface along the sliding direction of the reflecting plate, and the reflecting plate is provided with a mode plug on the driving inclined surface for being inserted into the mode grooves, and the mode plug includes a plug housing, a plug spring connected to the plug housing, and a fixing ball head.

[0011] By adopting the above technical solution, with the cooperation of the mode slot and the mode plug, the balanced sound absorbing panel layer has multiple fixed positions, and different fixed positions have different absorption and reflection areas, which can adapt to different performance forms of the theater. The fixing method is simple, and the stability of the reflector is further improved.

[0012] Optionally, connecting grooves are provided between adjacent mode grooves.

[0013] By adopting the above technical solution, the connecting groove connects two adjacent mode grooves, thereby improving the stability of the reflecting plate when sliding.

[0014] Optionally, the first frame is provided with a reset elastic member connected to the absorption plate in the shielding slide groove.

[0015] By adopting the above technical solution and setting the reset elastic member, when the reflective plate slides forward, the reflective plate moves from the end with the smaller opening of the two absorption plates to the end with the larger opening. Under the action of the reset elastic member, the absorption plate gradually extends out from the shielding slide groove, increasing the absorption area, ensuring that the abutting inclined surface and the driving inclined surface are always abutted, and ensuring the insertion stability of the mode slot and the mode plug.

[0016] Optionally, the adjustment structure includes an adjustment drive member arranged on the support frame, an adjustment screw connected to the output shaft of the adjustment drive member, and an adjustment slider arranged on the reflective plate and adapted to the adjustment screw, guide grooves are arranged on the upper and lower sides of the first frame, and the first frame is provided with a guide rail cooperating with the guide groove.

[0017] By adopting the above technical solution, the structural composition of the adjustment structure is disclosed. When the electrical signal is transmitted to the adjustment structure, the adjustment drive is started, driving the adjustment screw to rotate, driving the reflection plate to slide back and forth, adjusting the area ratio of absorption and reflection, and moving the reflection plate to a suitable mode slot.

[0018] Optionally, a plurality of mirror reflection strips are arranged at intervals on the surface of the reflection plate, a storage groove for rotatably installing the mirror reflection strips is arranged on the surface of the reflection plate, and a plurality of connecting rods for connecting the mirror reflections are arranged on the back of the reflection surface, and the connecting rods are connected to one end of the mirror reflection strips.

[0019] By adopting the above technical solution and setting the mirror reflection strip, it is possible to adjust the reflection ability of the reflection plate in a fixed mode, fine-tune the reverberation time, and further improve the sound transmission effect of the theater.

[0020] Optionally, the upper and lower ends of the mirror reflection strip are provided with plug rods for plugging and cooperating with the connection, and the plug rods and the mirror reflection strip are hingedly matched.

[0021] By adopting the above technical solution, the cooperation between the mirror reflection strip and the plug-in rod is disclosed. When the plug-in rod moves forward and backward, it can drive the mirror reflection strip to rotate, so that the inclination angle of the sound wave and the mirror reflection strip can be adjusted to better adapt to the sound wave emission angle of the theater.

[0022] Optionally, the reflective plate is slidably provided with a covering plate for covering the mirror reflection strip at the opening of the storage groove, and the upper and lower inner walls of the storage groove are slidably installed with sliding push blocks. The two ends of the mirror reflection strip are rotatably installed on the sliding push blocks. The sliding push blocks drive the covering plate to slide toward both sides. When the sliding push blocks push the covering plate open so that the mirror reflection strip contacts the outside world, the plug-in rod and the connecting rod are plugged into each other.

[0023] By adopting the above technical solution and setting the covering plate, the storage slot is covered so that the reflective plate maintains the reflective surface in the normal mode. When it is necessary to fine-tune the reflective area, the sliding push block is first driven to open the covering plate, exposing the mirror reflective strip to the outside world, thereby improving the overall reflective ability of the reflective plate. When further adjustment is needed, the connecting rod is driven to move forward and backward to rotate the mirror reflective strip, thereby changing the angle at which the sound wave abuts against the reflective strip.

[0024] Optionally, the sound pressure sensitive layer includes a thin film unit and a monitor arranged on the back side of the thin film unit, and the monitor transmits the vibration frequency of the thin film unit to the adjustment structure to control the forward and backward sliding of the reflection plate.

[0025] By adopting the above technical solution, the structural composition of the sound pressure sensitive layer is disclosed. The sound waves generated by the performance abut against the film unit, and the film unit vibrates. The monitor obtains the size of the sound waves according to the vibration frequency of the film unit, and then adjusts the sliding of the reflector back and forth.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application drives the reflector to slide forward and backward by adjusting the structure. When the reflector slides forward and backward, the absorber is synchronously driven to slide back and forth in the shielding slide slot, thereby changing the area of ​​the absorber exposed to the outside world, thereby adjusting the area ratio of absorption and reflection and adjusting the reverberation time; 2. The present application uses the cooperation of the mode slot and the mode plug to enable the balanced sound absorbing panel layer to have multiple fixed positions, thereby improving the stability of the reflector; 3. This application, through the setting of the mirror reflection strip, can adjust the reflection ability of the reflection plate and fine-tune the reverberation time in a fixed reflection plate mode, thereby further improving the sound transmission effect of the theater. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 Schematic diagram of the structure of the sound pressure sensitive layer of the embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the structure of a balanced sound absorbing panel group according to an embodiment of the present application.

[0030] Figure 4 It is a schematic cross-sectional view of a balanced sound absorbing panel group in a horizontal direction according to an embodiment of the present application.

[0031] Figure 5 yes Figure 4 A local enlarged schematic diagram of point A in the middle.

[0032] Figure 6It is a schematic cross-sectional view of the reflector in the vertical direction of the embodiment of the present application.

[0033] Description of reference numerals: 1. Sound pressure sensitive layer; 11. Outer wall; 12. Film unit; 121. Polyester film; 122. Support frame; 123. Connecting rod; 124. Carbon fiber connecting rod; 13. Monitor; 2. Balanced sound absorbing board layer; 21. First frame; 211. Balanced slot; 212. Blocking slide; 213. Reset elastic member; 214. Opening sink; 215. Guide slide; 22. Balanced sound absorbing board group; 221. Reflection plate; 2211. Driving inclined plane; 2 212. Mode plug; 2213. Guide rail; 2214. Storage slot; 222. Absorption plate; 2221. Abutment slope; 2222. Mode slot; 2223. Connecting slot; 23. Adjustment structure; 231. Adjustment drive member; 232. Adjustment screw; 233. Adjustment slider; 24. Mirror reflection strip; 241. Plug rod; 2411. Plug hook; 25. Covering plate; 26. Sliding push block; 27. Connecting rod; 271. Elastic clip; 3. Basic support frame. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] An embodiment of the present application discloses a wall structure for automatically adjusting the sound transmission effect of a theater.

[0036] Reference Figure 1 A wall structure for automatically adjusting the sound transmission effect of a theater includes, from the outside to the inside, a sound pressure sensitive layer 1 for monitoring the frequency of sound waves, a balanced sound absorbing board layer 2 for absorbing and reflecting sound waves, an adjustment structure 23 installed on the balanced sound absorbing board layer 2, and a basic support frame 3.

[0037] Reference Figure 1 and Figure 2 The sound pressure sensitive layer 1 is located on the side of the wall structure facing the theater performance area, and the sound pressure sensitive layer 1 includes an outer wall 11, a plurality of film units 12 arranged on the outer wall 11, and a monitor 13 arranged on the film unit 12. The film units 12 are arranged at intervals in the horizontal direction and are arranged corresponding to the balanced sound absorbing board layer 2. Each film unit 12 includes three polyester films 121, a support frame 122 for fixing the three polyester films 121, and a connecting rod 123 connecting adjacent polyester films 121.

[0038] Sound waves can penetrate the film unit 12 and generate certain vibrations according to the frequency of the sound waves. A carbon fiber connecting rod 124 is also installed at the inner center of the polyester film 121 in the middle. A monitor 13 is provided at the other end of the carbon fiber connecting rod 124. The monitor 13 is an optical sensor that can monitor and detect the vibration amplitude of the carbon fiber connecting rod 124, and then convert the monitored data into a digital signal and transmit it to the adjustment structure 23 after amplification.

[0039] Reference Figure 3 and Figure 4 The balanced sound absorbing panel layer 2 includes a first frame 21 and a plurality of balanced sound absorbing panel groups 22 arranged on the first frame 21. The balanced sound absorbing panel groups 22 and the film units 12 are arranged one by one, and the balanced sound absorbing panels include a reflecting panel 221 and an absorbing panel 222. The reflecting panel 221 can reflect sound waves to increase the reverberation time, and the absorbing panel 222 can absorb sound waves to reduce the reverberation time.

[0040] The first frame 21 has a balancing groove 211 for mounting the balancing sound absorbing panel group 22, the reflecting plate 221 is slidably mounted on the balancing groove 211, and the absorbing plate 222 is slidably mounted on both sides of the reflecting plate 221. The sliding direction of the reflecting plate 221 is defined as the front-to-back direction of the wall, and the sliding direction of the absorbing plate 222 is defined as the left-to-right direction of the wall.

[0041] The left and right sides of the reflecting plate 221 are respectively fitted with two absorbing plates 222, so that the reflecting plate 221 and the absorbing plate 222 can cover the front opening of the balancing tank body 211, and the opposite side walls of the balancing tank body 211 have shielding slide grooves 212 for the absorbing plate 222 to slide. The absorbing plate 222 is provided with abutting inclined surfaces 2221 on the side facing the reflecting plate 221, and the left and right sides of the reflecting plate 221 have driving inclined surfaces 2211 fitted with the abutting inclined surfaces 2221. The two abutting inclined surfaces 2221 are inclined inwardly in the direction away from the sound pressure sensitive layer 1, so as to ensure that the reflecting plate 221 is not easily blocked by the absorbing plate 222 when sliding backward. Among them, the first frame 21 is also equipped with a reset elastic member 213 in the shielding slide groove 212, so as to realize the automatic reset of the absorbing plate 222. The resetting elastic member 213 is a spring member, which is arranged along the left-right direction, and two ends of which are respectively fixed to the inner wall of the shielding slide groove 212 and the end surface of the absorption plate 222 .

[0042] The adjustment structure 23 is arranged on the balance slot 211, and is used to drive the forward and backward sliding of the reflective plate 221. When the reflective plate 221 slides, the absorption plate 222 also slides left and right at the same time, and the extension distance of the absorption plate 222 in the shielding slot 212 is adjusted, thereby changing the overall absorption and reflection area ratio of the wall surface.

[0043] The reflector 221 is also provided with a mode plug 2212 on the driving inclined surface 2211 for being fixedly matched with the absorption plate 222 . The mode plug 2212 includes a plug housing, a plug spring fixed to the bottom of the plug housing, and a fixing ball head provided on the plug spring.

[0044] The abutting inclined surface 2221 has a mode groove 2222 for plugging with the mode plug 2212, and the mode groove 2222 cooperates with the fixed ball head. There is also a connecting groove 2223 between adjacent mode grooves 2222, and the depth of the connecting groove 2223 is smaller than that of the mode groove 2222, so as to improve the stability of the mode plug 2212 when sliding.

[0045] The adjustment structure 23 includes an adjustment drive 231 fixed to the balancing tank 211, an adjustment screw 232 connected to the output shaft of the adjustment drive 231, and an adjustment slider threadedly matched with the adjustment screw 232. The adjustment drive 231 is a rotary motor, and its output shaft and the adjustment screw 232 are driven by gears. An open side of the balancing tank 211 has an open sink 214 for fixing the adjustment drive 231. The adjustment slider 233 is fixed to the back of the reflector 221, and the reflector 221 has a through hole for the adjustment screw 232 to pass through.

[0046] In order to ensure the verticality of the reflector 221 when sliding forward and backward, the reflector 221 is provided with guide rails 2213 on the upper and lower sides. The first frame 21 is provided with guide grooves 215 on the upper and lower sides of the balancing tank 211 for sliding with the guide rails 2213. In this embodiment, the cross section of the guide rails 2213 is T-shaped.

[0047] In some embodiments, the wall structure of the theater is usually unable to ensure that it remains level with the performance area, and sound waves are usually projected onto the reflective plate 221 and the absorbing plate 222 at an inclined angle. In order to further improve the reverberation effect in each mode, a reflection fine-tuning structure is also provided on the balanced sound-absorbing panel layer 2 to further adjust the reverberation time in each mode.

[0048] Reference Figure 4 and Figure 5 The reflection fine-tuning structure is a mirror reflection strip 24 rotatably mounted on the outer surface of the reflection plate 221. The mirror reflection strip 24 is vertically made of a high-density wooden board or metal plate, and its reflection coefficient is greater than the surface of the reflection plate 221. The surface of the reflection plate 221 has a storage groove 2214 for installing the mirror reflection strip 24, and the reflection plate 221 is rotatably provided with a covering plate 25 for covering the mirror reflection strip 24 at the opening of the storage groove 2214. The covering plate 25 covers the storage groove 2214 in a normal state.

[0049] Sliding blocks 26 are provided at the upper and lower ends of the mirror reflection strip 24, and the two ends of the mirror reflection strip 24 have rotation axes that rotate with the sliding blocks 26. The sliding blocks 26 are installed on the reflection plate 221 in a sliding manner along the front-back direction, and the cover plate 25 has an inclined surface for the sliding blocks 26 to abut against. Therefore, when the sliding blocks 26 slide forward, the cover plate 25 is abutted against to drive the cover plate 25 to open outward, so that the mirror reflection strip 24 replaces the original cover plate 25, thereby increasing the overall reflection effect of the surface of the reflection plate 221.

[0050] A connecting rod 27 for pulling the mirror reflection strip 24 is installed on the back of the reflection plate 221. The connecting rod 27 connects multiple mirror reflection strips 24 to achieve the rotation of the multiple mirror reflection strips 24, adjust the angle of the sound wave against the reflection plate 221, and then fine-tune the reverberation time. In this embodiment, the forward and backward movement of the connecting rod 27 and the sliding push block 26 are both achieved by the motor screw.

[0051] Combination Figure 6 , the connecting rod 27 and the mirror reflection strip 24 are plugged together, and the mirror reflection strip 24 is installed with a plugging rod 241 on one side of the connecting axis. The plugging rod 241 is located at the bottom of the mirror reflection strip 24, one end of the plugging rod 241 is hingedly matched with the reflection plate 221, and the other end has a plugging hook 2411 extending upward. When the cover plate 25 is covered, the plugging hook 2411 is located on the side of the connecting rod 27 away from the mirror reflection strip 24. The rear side of the connecting rod 27 has a slot that matches the plugging hook 2411, and the connecting rod 27 is provided with an elastic clip 271 in the slot to clamp the plugging hook 2411.

[0052] The elastic clip 271 can be a metal clip, which can have a certain clamping effect on the plug-in hook 2411. When the sliding push block 26 pushes the covering plate 25 open, the plug-in hook 2411 and the connecting rod 27 are plugged into each other, and the mirror reflection strip 24 is driven to rotate by the forward and backward movement of the connecting rod 27.

[0053] The implementation principle of the wall structure for automatically adjusting the sound transmission effect of a theater in an embodiment of the present application is as follows: when the theater starts a performance, the sound waves generated by the performance pass through the sound pressure sensitive layer 1, the sound pressure sensitive layer 1 monitors the size of the sound waves, and transmits the digital signal to the adjustment structure 23 through the sensor, driving the reflection plate 221 to move back and forth, and adjusting the balanced sound absorption plate layer 2 to the required mode; when it is necessary to fine-tune the reflection area, first drive the sliding push block 26 to open the cover plate 25, expose the mirror reflection strip 24 to the outside world, and improve the overall reflection ability of the reflection plate 221. When further adjustment is needed, drive the connecting rod 27 to move back and forth to rotate the mirror reflection strip 24.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wall structure for automatically adjusting the sound transmission effect of a theater, characterized in that: The structure comprises, from the outside to the inside, a sound pressure sensitive layer (1) for monitoring the frequency of sound waves, a balanced sound absorbing panel layer (2) for absorbing and reflecting sound waves, an adjustment structure (23) arranged on the balanced sound absorbing panel layer (2), and a basic support frame (3); the balanced sound absorbing panel layer (2) comprises a first frame (21) and a plurality of balanced sound absorbing panel groups (22); The balanced sound absorbing panel group (22) comprises a reflecting plate (221) connected to the adjusting structure (23) and absorbing plates (222) arranged on opposite sides of the reflecting plate (221); the first frame (21) is provided with a shielding slide groove (212) for the absorbing plate (222) to be slidably installed; the sliding directions of the reflecting plate (221) and the absorbing plate (222) are perpendicular to each other, so as to adjust the absorbing area of ​​the absorbing plate (222) exposed to the shielding slide groove (212).

2. A wall structure for automatically adjusting the sound transmission effect of a theater according to claim 1, characterized in that: The absorption plate (222) is provided with an abutment slope (2221) on one side facing the reflection plate (221), the two abutment slopes (2221) are inclined inwardly away from the sound pressure sensitive layer (1), and the reflection plate (221) is provided with driving slopes (2211) in contact with the abutment slopes (2221) on opposite sides.

3. The wall structure for automatically adjusting the acoustic effect of a theater according to claim 2, characterized in that: The absorption plate (222) is provided with a plurality of mode grooves (2222) on the abutting inclined surface (2221) along the sliding direction of the reflection plate (221); the reflection plate (221) is provided with a mode plug (2212) on the driving inclined surface (2211) for being inserted into the mode grooves (2222); the mode plug (2212) comprises a plug housing, a plug spring connected to the plug housing, and a fixing ball head.

4. The wall structure for automatically adjusting the sound transmission effect of a theater according to claim 3, characterized in that: A connecting groove (2223) is provided between adjacent mode grooves (2222).

5. The wall structure for automatically adjusting the sound transmission effect of a theater according to claim 1, characterized in that: The first frame (21) is provided with a resetting elastic member (213) connected to the absorption plate (222) in the shielding slide groove (212).

6. The wall structure for automatically adjusting the acoustic effect of a theater according to claim 1, characterized in that: The adjustment structure (23) comprises an adjustment drive member (231) arranged on the support frame (122), an adjustment screw (232) connected to the output shaft of the adjustment drive member (231), and an adjustment slider (233) arranged on the reflector plate (221) and adapted to the adjustment screw (232); guide grooves (215) are arranged on the upper and lower sides of the first frame (21); and the first frame (21) is provided with a guide rail (2213) adapted to cooperate with the guide groove (215).

7. The wall structure for automatically adjusting the acoustic effect of a theater according to claim 1, characterized in that: A plurality of mirror reflection strips (24) are also arranged at intervals on the surface of the reflection plate (221); a storage slot (2214) for rotatably mounting the mirror reflection strips (24) is provided on the surface of the reflection plate (221); a connecting rod (27) for connecting the plurality of mirror reflection strips (24) is provided on the back of the reflection plate (221); the connecting rod (27) drives the mirror reflection strips (24) to rotate.

8. The wall structure for automatically adjusting the sound transmission effect of a theater according to claim 7, characterized in that: The back of the mirror reflection strip (24) is provided with a plug-in rod (241) for plugging and matching with the connecting rod (27); the end of the plug-in rod (241) and the mirror reflection strip (24) are connected; the connecting rod (27) has a slot matching with the plug-in rod (241); the connecting rod (27) is provided with an elastic clip (271) in the slot for clamping the plug-in rod (241).

9. The wall structure for automatically adjusting the sound transmission effect of a theater according to claim 8, characterized in that: The reflective plate (221) is slidably provided with a covering plate (25) for covering the mirror reflection strip (24) at the opening of the storage groove (2214); the upper and lower inner walls of the storage groove (2214) are slidably installed with sliding push blocks (26); the two ends of the mirror reflection strip (24) are rotatably installed on the sliding push blocks (26); the sliding push blocks (26) drive the covering plate (25) to slide towards both sides; when the sliding push blocks (26) push the covering plate (25) away so that the mirror reflection strip (24) contacts the outside, the plug-in rod (241) and the connecting rod (27) are plugged and matched.

10. The wall structure for automatically adjusting the acoustic effect of a theater according to claim 1, characterized in that: The sound pressure sensitive layer (1) comprises a thin film unit (12) and a monitor (13) arranged on the back side of the thin film unit (12); the monitor (13) transmits the vibration frequency of the thin film unit (12) to the adjustment structure (23) to control the forward and backward sliding of the reflection plate (221).

Images