Anti-echo clamping plate

By introducing PVC waterproof cloth, drainage rods, and polyamide water-absorbing blocks into the echo board, moisture penetration is prevented. Combined with sound absorption and noise reduction design, the problem of moisture in the echo board is solved, improving its service life and noise reduction effect.

CN223781088UActive Publication Date: 2026-01-09SHENZHEN JINGYUANDA CONSTR GRP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520213868.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-01-09
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

Echo panels in large theaters are prone to warping or damage due to moisture, affecting their echo cancellation effect and service life.

Method used

The system combines PVC waterproof cloth with drainage rods, L-shaped channels, and polyamide absorbent blocks, along with PP spunbond nonwoven fabric and polyvinyl alcohol hydrophobic coating to prevent moisture infiltration. It also incorporates foam plastic sound-absorbing panels, inclined noise-reducing channels, noise-reducing boards, and rubber pads to absorb and disperse noise, enhancing the noise reduction effect. The support strength is further improved by using corner steel plates.

Benefits of technology

It effectively prevents the echo-eliminating board from getting damp, deformed, or damaged, improving the echo cancellation effect and service life, while also enhancing noise absorption and reduction capabilities.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223781088U_ABST
    Figure CN223781088U_ABST
Patent Text Reader

Abstract

The utility model discloses an anti-echo clamping plate, and relates to the technical field of anti-echo plates. The sound insulation board comprises a board frame, a foamed plastic sound absorption board is fixedly connected into the board frame, a plurality of drainage rods are evenly arranged in the board frame, PVC waterproof cloth is fixedly connected into the board frame, the PVC waterproof cloth is installed between the foamed plastic sound absorption board and the drainage rods, and an L-shaped through groove is formed in the bottom of the board frame. Through cooperative use of PVC waterproof cloth, a drainage rod, an L-shaped through groove and a polyamide water absorption block, moisture entering the board frame along the wall can be guided and absorbed conveniently, the situation that the moisture penetrates through the PVC waterproof cloth and enters the foamed plastic sound absorption board is reduced, meanwhile, the polyamide water absorption block is used for achieving moisture absorption and guided air drying, and the moisture absorption effect is improved. Therefore, the problem that the echo elimination effect and the service life of the panel frame are affected due to damp deformation or damage of the panel in the panel frame is effectively reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of soundproofing panels, and in particular to a soundproofing clip. Background Technology

[0002] In today's society, with the rapid development of the construction industry, people's requirements for the acoustic environment of buildings are also increasing. Echo problems exist in many buildings, causing significant disruption to people's lives and work. Echoes refer to the sound delay and amplification phenomena caused by the reflection and superposition of sound waves within a building. In buildings such as large conference rooms, concert halls, and theaters, echoes are particularly prominent, not only affecting verbal communication and auditory experience but also interfering with activities requiring a high-quality sound environment.

[0003] To reduce echoes, echo-damping panels are typically installed on the walls of buildings such as large theaters. These panels absorb and scatter sound, preventing it from reflecting back and forth between walls, thus reducing echoes and reverberation time. This improves the clarity of speech and music, resulting in a clearer and purer listening experience.

[0004] However, large theaters are prone to moisture buildup due to the large number of people, which can cause the sound-absorbing panels to become damp – a common problem. Humans naturally emit moisture and heat, and when a large number of people gather in a closed indoor space, this moisture and heat accumulate, leading to increased indoor humidity. This condensation forms on the walls and seeps into the sound-absorbing panels. If exposed to high humidity for extended periods, these panels are easily damaged, warped, or destroyed, thus affecting their echo cancellation performance and lifespan. Utility Model Content

[0005] The purpose of this application is to provide an anti-echo panel to address the problem that moisture in large theaters can easily seep into the interior of the soundproofing panels along the walls, causing the soundproofing panels to become damp, deformed, or damaged, thereby affecting their echo cancellation effect and service life.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] An anti-echo clamp includes a board frame, a foam plastic sound-absorbing board fixedly connected inside the board frame, and multiple drainage rods evenly arranged inside the board frame. A PVC waterproof cloth is fixedly connected inside the board frame and installed between the foam plastic sound-absorbing board and the drainage rods. An L-shaped through groove is opened at the bottom of the board frame. The input end of the L-shaped through groove is connected to the bottom of the drainage rod, and the output end of the L-shaped through groove passes through the board frame and extends to the outside of the board frame. A polyamide water-absorbing block is fixedly connected inside the L-shaped through groove.

[0008] By adopting the above technical solution, and through the combined use of PVC waterproof cloth, diversion rods, L-shaped channels, and polyamide water-absorbing blocks, it is convenient to guide and absorb moisture that enters the interior of the board frame along the wall. This reduces the possibility of moisture passing through the PVC waterproof cloth and entering the interior of the foam plastic sound-absorbing board. At the same time, the polyamide water-absorbing blocks are used to absorb and guide the moisture to dry, thereby effectively reducing the problem of the board inside the frame being deformed or damaged by moisture, which would affect its echo cancellation effect and service life.

[0009] Furthermore, a PP spunbond nonwoven fabric is fixedly connected to one side of the plate frame.

[0010] By adopting the above technical solution, the use of PP spunbond nonwoven fabric facilitates the filtration and interception of water vapor that seeps into the interior of the board frame, reducing the entry of foreign objects such as dust in the water vapor into the interior of the board frame and improving the practicality of the device.

[0011] Furthermore, multiple inclined noise reduction grooves are evenly provided on one side of the foam plastic sound-absorbing panel.

[0012] By adopting the above technical solution and setting up inclined noise reduction grooves, noise passing through the foam plastic sound-absorbing panel can be refracted, extending the noise's path and reducing its intensity.

[0013] Furthermore, a noise reduction plate is fixedly connected inside the plate frame. The noise reduction plate is installed between the foam plastic sound-absorbing plate and the PVC waterproof cloth. Multiple diversion grooves are evenly opened at one end of the noise reduction plate. A noise reduction chamber is opened inside the noise reduction plate. Multiple diversion holes communicating with the noise reduction chamber are opened on the inner side of the diversion groove.

[0014] By adopting the above technical solution, and by using the combination of diversion groove and diversion hole, it is convenient to guide and divert the noise passing through the noise reduction chamber. The noise passes through the diversion hole and enters the interior of the noise reduction chamber, and collides and refracts with the inner wall of the noise reduction chamber. As a result, some of the noise is continuously weakened in the collision and refraction with the inner wall of the noise reduction chamber, thereby further improving the sound absorption and noise reduction effect of the device.

[0015] Furthermore, rubber pads are symmetrically fixedly connected to the inner side of the noise reduction chamber.

[0016] By adopting the above technical solution, rubber pads are used to absorb noise entering the noise reduction chamber, reducing the noise propagation range and dispersing the vibration energy generated by noise impacting the inner wall of the noise reduction chamber, thereby reducing structural resonance inside the noise reduction chamber.

[0017] Furthermore, the internal structure of the plate frame is fixedly connected with an insulation composite board.

[0018] By adopting the above technical solution and setting up thermal insulation composite panels to absorb noise, the propagation of noise is reduced, and the noise reduction effect of the device is further improved.

[0019] Furthermore, corner steel plates are fixedly connected to the four corners of the plate frame.

[0020] By adopting the above technical solution, the support strength of the plate frame is effectively improved by setting up corner steel plates, reducing the deformation of the plate frame under stress, and extending the service life of the device.

[0021] Furthermore, the surface of the plate frame is coated with a polyvinyl alcohol hydrophobic coating.

[0022] By adopting the above technical solution, the waterproofness of the plate frame surface is effectively improved by setting a polyvinyl alcohol hydrophobic coating, thus extending the service life of the device.

[0023] In summary, this application includes at least one of the following beneficial effects:

[0024] 1. By using PVC waterproof cloth in conjunction with diversion rods, L-shaped channels, and polyamide absorbent blocks, moisture entering the interior of the board frame along the wall can be easily guided and absorbed. This reduces the possibility of moisture passing through the PVC waterproof cloth and entering the interior of the foam plastic sound-absorbing board. At the same time, the polyamide absorbent blocks are used to absorb and guide the moisture to dry, thereby effectively reducing the problem of the board inside the frame being deformed or damaged by moisture, which would affect its echo cancellation effect and service life.

[0025] 2. When noise passes through the foam sound-absorbing panel and the diversion channel, the noise passing through the diversion channel is diverted and guided by the diversion holes. This allows some of the noise to enter the noise reduction chamber through the diversion holes and collide with the inner wall of the noise reduction chamber, thus continuously weakening the noise through the collision and refraction with the inner wall. At the same time, the rubber pads absorb the noise entering the noise reduction chamber and use the high damping characteristics of the rubber pads to prevent the noise from propagating, thereby reducing the range of noise propagation and dispersing the vibration energy generated by the noise hitting the inner wall of the noise reduction chamber. This reduces the structural resonance inside the noise reduction chamber and further improves the sound absorption and noise reduction effect of the device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the main body of the device in this application.

[0027] Figure 2 This is an exploded view of the internal structure of the plate frame in this application.

[0028] Figure 3 This is a schematic diagram of the internal structure of the noise reduction chamber in this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Sheet frame; 2. Foam plastic sound-absorbing board; 3. Drainage rod; 4. PVC waterproof cloth; 5. L-shaped channel; 6. Polyamide water-absorbing block; 7. PP spunbond non-woven fabric; 8. Inclined noise reduction channel; 10. Noise reduction board; 11. Diversion channel; 12. Noise reduction chamber; 13. Diversion hole; 14. Rubber pad; 15. Thermal insulation composite board; 16. Angle wrapping steel plate. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0032] This application discloses an anti-echo clip.

[0033] Reference Figure 1 and Figure 2 An anti-echo clamp includes a board frame 1, a foam plastic sound-absorbing board 2 fixedly connected inside the board frame 1, and a plurality of drainage rods 3 evenly arranged inside the board frame 1. A PVC waterproof cloth 4 is fixedly connected inside the board frame 1 and installed between the foam plastic sound-absorbing board 2 and the drainage rods 3. An L-shaped through groove 5 is opened at the bottom of the board frame 1. The input end of the L-shaped through groove 5 is connected to the bottom of the drainage rods 3, and the output end of the L-shaped through groove 5 passes through the board frame 1 and extends to the outside of the board frame 1. A polyamide water-absorbing block 6 is fixedly connected inside the L-shaped through groove 5.

[0034] Among them, PP spunbond nonwoven fabric 7 is fixedly connected to one side of the board frame 1.

[0035] In use, the panel frame 1 is first installed on the theater wall. Then, moisture on the wall surface passes through the PP spunbond nonwoven fabric 7 and enters the interior of the panel frame 1. Simultaneously, the moisture passing through the PP spunbond nonwoven fabric 7 and entering the interior of the panel frame 1 comes into contact with the guide rod 3 and condenses. Under the action of gravity, it slides down the surface of the guide rod 3 into the interior of the L-shaped channel 5. The moisture falling into the L-shaped channel 5 is absorbed by the polyamide water-absorbing block 6. Then, the polyamide water-absorbing block 6 comes into contact with the external dry air through the output end of the L-shaped channel 5, and the moisture absorbed inside is dried by the dry air. At the same time, the PVC waterproof cloth 4 can intercept the moisture passing through the PP spunbond nonwoven fabric 7 and enter the interior of the panel frame 1, reducing the amount of moisture seeping into the interior of the panel frame 1. This effectively reduces the problem of moisture seeping into the interior of the panel frame 1, causing the panel to become damp, deformed, or damaged, which in turn affects its echo cancellation effect and service life.

[0036] Reference Figure 1 and Figure 2 Multiple inclined noise reduction grooves 8 are evenly provided on one side of the foam plastic sound-absorbing panel 2.

[0037] When in use, when noise passes through the foam plastic sound-absorbing panel 2, it propagates through the interior of the inclined noise reduction groove 8 and is refracted inside the inclined noise reduction groove 8 after impacting the inner wall of the inclined noise reduction groove 8, thereby prolonging the propagation path of the noise inside the inclined noise reduction groove 8. At the same time, the impact of the noise on the inner wall of the inclined noise reduction groove 8 weakens the intensity of the noise, thus improving the noise reduction effect of the device.

[0038] Reference Figure 2 and Figure 3 The noise reduction plate 10 is fixedly connected inside the plate frame 1. The noise reduction plate 10 is installed between the foam plastic sound-absorbing plate 2 and the PVC waterproof cloth 4. Multiple diversion grooves 11 are evenly opened at one end of the noise reduction plate 10. A noise reduction chamber 12 is opened inside the noise reduction plate 10. Multiple diversion holes 13 communicating with the noise reduction chamber 12 are opened on the inner side of the diversion groove 11.

[0039] Furthermore, rubber pads 14 are symmetrically fixedly connected to the inner side of the noise reduction chamber 12.

[0040] In use, when noise passes through the foam plastic sound-absorbing panel 2 and the diversion channel 11, the noise passing through the diversion channel 11 is diverted and guided by the diversion hole 13, so that part of the noise passes through the diversion hole 13 and enters the interior of the noise reduction chamber 12, and forms a collision and refraction with the inner wall of the noise reduction chamber 12. Thus, part of the noise is continuously weakened in the collision and refraction with the inner wall of the noise reduction chamber 12. At the same time, the rubber pad 14 is used to absorb the noise entering the interior of the noise reduction chamber 12, and the high damping characteristics of the rubber pad 14 are used to prevent the propagation of the noise, thereby reducing the propagation range of the noise and dispersing the vibration energy generated by the noise hitting the inner wall of the noise reduction chamber 12, so as to reduce the structural resonance inside the noise reduction chamber 12, thereby further improving the sound absorption and noise reduction effect of the device.

[0041] Reference Figure 1 and Figure 2 The internal fixed connection of the plate frame 1 is a thermal insulation composite board 15.

[0042] When in use, when noise passes through the insulation composite board 15, the insulation bubble structure inside the insulation composite board 15 absorbs and refracts the noise, reducing the transmission of noise and thus further achieving the noise reduction effect.

[0043] Reference Figure 1 and Figure 2 The four corners of the plate frame 1 are fixedly connected with corner steel plates 16.

[0044] When the plate frame 1 is subjected to external force during use, the corner steel plates 16 are set to share the deformation pressure borne by the four corners of the plate frame 1, thereby improving the connection rigidity at the four corners of the plate frame 1, increasing the support strength of the plate frame 1, and extending the service life of the device.

[0045] Reference Figure 1 and Figure 2 The surface of the plate frame 1 is coated with a polyvinyl alcohol hydrophobic coating.

[0046] When in use, by coating the surface of the board frame 1 with a polyvinyl alcohol hydrophobic coating, the amount of water vapor passing through the surface of the board frame 1 and penetrating into the interior of the board frame 1 is effectively reduced, thus improving the waterproof effect of the board frame 1.

[0047] The implementation principle of the anti-echo clip in this embodiment is as follows: First, when water vapor on the wall passes through the PP spunbond nonwoven fabric 7 and enters the interior of the board frame 1, the water vapor that passes through the PP spunbond nonwoven fabric 7 and enters the interior of the board frame 1 comes into contact with the guide rod 3 and condenses. Under the action of gravity, it slides down the surface of the guide rod 3 into the interior of the L-shaped channel 5, and the water vapor falling into the L-shaped channel 5 is absorbed by the polyamide water-absorbing block 6. Then, the polyamide water-absorbing block 6 comes into contact with the external dry air through the output end of the L-shaped channel 5, and the water vapor absorbed inside is dried by the dry air. At the same time, by setting the PVC waterproof cloth 4, the water vapor that passes through the PP spunbond nonwoven fabric 7 and enters the interior of the board frame 1 can be intercepted, reducing the situation of water seeping into the interior of the board frame 1, thereby effectively reducing the water vapor seeping into the interior of the board frame 1.

[0048] Then, when the noise passes through the foam sound-absorbing panel 2 and the diversion channel 11, the noise passing through the diversion channel 11 is diverted and guided by the diversion hole 13, so that part of the noise passes through the diversion hole 13 and enters the interior of the noise reduction chamber 12, and forms a collision and refraction with the inner wall of the noise reduction chamber 12. Thus, part of the noise is continuously weakened in the collision and refraction with the inner wall of the noise reduction chamber 12. At the same time, the rubber pad 14 is used to absorb the noise entering the interior of the noise reduction chamber 12, and the high damping characteristics of the rubber pad 14 are used to prevent the propagation of the noise, thereby reducing the propagation range of the noise and dispersing the vibration energy generated by the noise hitting the inner wall of the noise reduction chamber 12, so as to reduce the structural resonance inside the noise reduction chamber 12, thereby further improving the sound absorption and noise reduction effect of the device.

Claims

1. An anti-echo baffle comprising a frame (1) of sheet material, characterised in that: The inside of the plate frame (1) is fixedly connected with a foamed plastic sound-absorbing plate (2), and the inside of the plate frame (1) is uniformly provided with a plurality of drainage rods (3), the inside of the plate frame (1) is fixedly connected with a PVC water-proof cloth (4), the PVC water-proof cloth (4) is installed between the foamed plastic sound-absorbing plate (2) and the drainage rod (3), an L-shaped through slot (5) is formed in the bottom of the plate frame (1), the input end of the L-shaped through slot (5) is in communication with the bottom of the drainage rod (3), the output end of the L-shaped through slot (5) penetrates through the plate frame (1) and extends to the outside of the plate frame (1), and the inside of the L-shaped through slot (5) is fixedly connected with a polyamide water-absorbing block (6).

2. A baffle panel according to claim 1, wherein: One side of the plate frame (1) is fixedly connected with a PP spun-bond non-woven fabric (7).

3. A panel according to claim 1, wherein: A plurality of inclined noise reduction grooves (8) are uniformly formed in one side of the foamed plastic sound-absorbing plate (2).

4. A panel according to claim 1, wherein: The inside of the plate frame (1) is fixedly connected with a noise reduction plate (10), the noise reduction plate (10) is installed between the foamed plastic sound-absorbing plate (2) and the PVC water-proof cloth (4), one end of the noise reduction plate (10) is uniformly provided with a plurality of shunt grooves (11), the inside of the noise reduction plate (10) is provided with a noise reduction bin (12), and the inner side of the shunt groove (11) is provided with a plurality of shunt holes (13) in communication with the noise reduction bin (12).

5. A baffle panel according to claim 4, wherein: The inner side of the noise reduction bin (12) is fixedly connected with rubber pads (14) in a symmetrical manner.

6. A panel according to claim 1, wherein: The inside of the plate frame (1) is fixedly connected with a thermal insulation composite board (15).

7. A panel according to claim 1, wherein: The corners of the plate frame (1) are fixedly connected with angle steel plates (16).

8. A panel according to claim 1, wherein: The surface of the plate frame (1) is coated with a polyvinyl alcohol hydrophobic coating.