Streamline sound absorption silencing sheet

Abstract

The utility model relates to the technical field of silencing sheets, and discloses a streamline sound absorption silencing sheet, which comprises an outer frame, a first flow deflector arranged on the inner wall of the outer frame, a glass wool layer arranged below the first flow deflector, a second flow deflector arranged on the inner wall of the outer frame, and a sound absorption layer arranged below the glass wool layer, the outer frame, the first flow deflector and the second flow deflector are matched for use, so that the main body can be conveniently attached to different objects, and meanwhile, noise can be conveniently guided through the streamline design of the first flow deflector and the second flow deflector; the glass wool layer, the rock wool layer and the polyester fiber layer are matched for use, noise can be conveniently absorbed, sound wave energy can be conveniently converted, due to the fact that the materials have good corrosion resistance and weather resistance, the stable sound absorption effect can be kept for a long time, and meanwhile the service life of the main body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of sound-absorbing sheet technology, specifically a streamlined sound-absorbing sheet. Background Technology

[0002] Silencing plates, also known as noise reduction plates or sound-absorbing plates, are mainly used to reduce or eliminate noise generated by various equipment or environments. Through specific material and structural design, they convert sound wave energy into heat energy or other forms of energy, thereby reducing the propagation and reflection of sound waves. Silencing plates can be made of a variety of materials, such as viscoelastic damping materials and stainless steel plates. This composite material is common in braking systems, where it avoids resonance through layer-by-layer phase resistance, thus playing a role in noise reduction.

[0003] With the continuous development of modern urban transportation, car noise and aircraft engine noise have become increasingly prominent problems in people's daily lives. These noises not only affect people's physical and mental health, but also pollute the surrounding environment. Therefore, a streamlined sound-absorbing and noise-absorbing sheet is needed to absorb noise. Most existing sound-absorbing sheets are rectangular or square in regular shape. This shape makes the sound-absorbing sheet unsuitable for irregular objects, reducing the practicality of the device. In addition, existing streamlined sound-absorbing and noise-absorbing sheets have poor rigidity and are easily bent under stress, affecting the use of the device. At the same time, they have poor corrosion resistance and high temperature resistance, which can easily affect the service life of the device. Utility Model Content

[0004] The purpose of this invention is to provide a streamlined sound-absorbing and noise-reducing sheet to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a streamlined sound-absorbing and noise-reducing sheet, including an outer frame, and further comprising:

[0006] A first guide vane is disposed on the inner wall of the outer frame, and a second guide vane is disposed on the inner wall of the outer frame, and both the first guide vane and the second guide vane are streamlined in shape;

[0007] A glass wool layer is disposed below the first guide plate, a rock wool layer is disposed below the glass wool layer, and a polyester fiber layer is disposed below the rock wool layer. The inner walls of the glass wool layer, the rock wool layer, and the polyester fiber layer are all provided with through holes. Several sets of limiting blocks are fixed on the inner wall of the first guide plate, and the outer side of each set of limiting blocks is slidably connected to the inner wall of the through hole.

[0008] Preferably, a slot is fixed on the outer side of the outer frame, and a slider for limiting the position of the main body is fixed on the outer side of the outer frame.

[0009] Preferably, a limiting frame is fixed to the outer side of the outer frame, and a vertically arranged lead screw is threaded to the inner wall of the limiting frame.

[0010] Preferably, a turntable is fixed to the bottom end of the lead screw, and a horizontally arranged push plate is rotatably connected to the top end of the lead screw.

[0011] Preferably, the top of the push plate is fixed with a plug for snapping and fixing the main body, and the number of plugs is two sets.

[0012] Preferably, a vertically arranged limiting rod is fixed at the bottom of the push plate, and the outer side of the limiting rod is slidably connected to the inner wall of the limiting frame.

[0013] Preferably, a snap-fit ​​block is fixed to the outer side of the outer frame, and the inner wall of the snap-fit ​​block is provided with a limiting hole for limiting the insertion block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model, through the use of an outer frame, a first guide plate, and a second guide plate, facilitates the attachment of the main body to various items. The streamlined design of the first and second guide plates facilitates noise diversion. The combination of glass wool, rock wool, and polyester fiber layers facilitates the absorption and conversion of sound wave energy. Because these materials possess excellent corrosion resistance and weather resistance, they maintain a stable sound absorption effect over a long period, thereby extending the service life of the main body. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the streamlined sound-absorbing and noise-reducing sheet provided by this utility model;

[0017] Figure 2 A schematic diagram of the glass wool structure provided for this utility model;

[0018] Figure 3 A schematic diagram of the outer frame structure provided for this utility model;

[0019] Figure 4 for Figure 3 A magnified structural diagram of point A shown.

[0020] In the diagram: 1. Outer frame; 2. First guide vane; 3. Second guide vane; 4. Glass wool layer; 5. Rock wool layer; 6. Polyester fiber layer; 7. Through hole; 8. Limiting block; 9. Slot; 10. Slider; 11. Limiting frame; 12. Lead screw; 13. Turntable; 14. Push plate; 15. Insert block; 16. Limiting rod; 17. Snap-fit ​​block; 18. Limiting hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 As shown, a streamlined sound-absorbing and noise-reducing sheet includes an outer frame 1. The outer frame 1 facilitates the positioning of a first guide vane 2 and a second guide vane 3, and also facilitates the shaping of the main body. A first guide vane 2 and a second guide vane 3 are disposed on the inner wall of the outer frame 1, both being streamlined in shape. The first and second guide vanes 2 and 3 facilitate sound flow. A glass wool layer 4 is disposed below the first guide vane 2, a rock wool layer 5 is disposed below the glass wool layer 4, and a polyester fiber layer 6 is disposed below the rock wool layer 5. The combined use of the glass wool layer 4, rock wool layer 5, and polyester fiber layer 6 facilitates noise absorption. The glass wool layer 4, rock wool layer 5, and polyester fiber layer 6 are all porous sound-absorbing materials. These materials have excellent sound absorption performance, effectively absorbing and converting sound wave energy, reducing noise reflection and propagation. In addition, these materials also have good corrosion resistance and weather resistance, and can maintain a stable sound absorption effect for a long time. The inner walls of the glass wool layer 4, rock wool layer 5, and polyester fiber layer 6 are all provided with through holes 7. By setting the through holes 7, it is easy to limit the position of the limiting block 8. Several sets of limiting blocks 8 are fixed on the inner wall of the first guide plate 2, and the outer side of each set of limiting blocks 8 is slidably connected to the inner wall of the through hole 7. By setting the limiting blocks 8 and the through holes 7 in combination, it is easy to fix the glass wool layer 4, rock wool layer 5, and polyester fiber layer 6, thus ensuring the stability of the main body.

[0023] A slot 9 is fixed on the outer side of the outer frame 1. The slot 9 facilitates the limiting of the slider 10. The slider 10 used to limit the main body is fixed on the outer side of the outer frame 1. The slider 10 and the slot 9 work together to limit the two sets of sound-absorbing plates. A limit frame 11 is fixed on the outer side of the outer frame 1. The limit frame 11 facilitates the limiting of the lead screw 12 and the limit rod 16. The inner wall of the limit frame 11 is threaded with a vertically arranged lead screw 12. The lead screw 12 facilitates the movement of the push plate 14. A turntable 13 is fixed at the bottom of the lead screw 12. The turntable 13 facilitates the rotation of the lead screw 12. The top of the lead screw 12 is rotatably connected to a horizontally arranged push plate 14. The push plate 14 facilitates the movement of the insert block 15.

[0024] The top of the push plate 14 is fixed with two sets of insert blocks 15 for snapping and fixing the main body. The insert blocks 15 can be used in conjunction with the snap-fit ​​block 17 and the limiting hole 18 to fix the two sound-absorbing plates. The bottom of the push plate 14 is fixed with a vertically arranged limiting rod 16, and the outer side of the limiting rod 16 is slidably connected to the inner wall of the limiting frame 11. The limiting rod 16 can be used to limit the push plate 14 and prevent the push plate 14 from causing the insert blocks 15 to shift during installation. The outer side of the outer frame 1 is fixed with a snap-fit ​​block 17. The inner wall of the snap-fit ​​block 17 is provided with a limiting hole 18 for limiting the insert blocks 15. The snap-fit ​​block 17 and the limiting hole 18 can be used in conjunction to limit the insert blocks 15 and fix the main body.

[0025] Working principle: In use, the first guide vane 2, the second guide vane 3, the glass wool layer 4, the rock wool layer 5, and the polyester fiber layer 6 are first installed sequentially on the inner wall of the outer frame 1. The glass wool layer 4, the rock wool layer 5, and the polyester fiber layer 6 are fixed by the through hole 7 and the limiting block 8, improving the stability of the main body. Then, the adjacent sound-absorbing vanes are locked together by the slot 9, the slider 10, the limiting frame 11, and the locking block 17. After that, the turntable 13 is rotated, which drives the lead screw 12 to rotate, and the lead screw 12 drives... The push plate 14 moves, which drives the insert block 15 to move. The insert block 15 is limited by the limiting hole 18, thereby fixing the adjacent sound-absorbing sheet and improving the convenience of the main body. Finally, the glass wool layer 4, rock wool layer 5 and polyester fiber layer 6 absorb noise. Since the glass wool layer 4, rock wool layer 5 and polyester fiber layer 6 are all porous sound-absorbing materials, these materials have excellent sound absorption performance and can effectively absorb and convert sound wave energy, reduce noise reflection and propagation, and improve the practicality of the main body.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A streamlined sound-absorbing silencer sheet comprising an outer frame (1), characterized in that, Also include: The first guide vane (2) is arranged in the inner wall of the outer frame (1), the inner wall of the outer frame (1) is provided with the second guide vane (3), and the shapes of the first guide vane (2) and the second guide vane (3) are streamlined; The glass wool layer (4) is arranged below the first guide vane (2), the rock wool layer (5) is arranged below the glass wool layer (4), the polyester fiber layer (6) is arranged below the rock wool layer (5), the inner wall of the glass wool layer (4), the rock wool layer (5) and the polyester fiber layer (6) are provided with through holes (7), the inner wall of the first guide vane (2) is fixed with a plurality of groups of limiting blocks (8), and the outer side of each group of limiting blocks (8) is slidably connected with the inner wall of the through hole (7).

2. A streamlined sound absorbing and damping sheet according to claim 1, characterized in that: The outer side of the outer frame (1) is fixed with a clamping groove (9), and the outer side of the outer frame (1) is fixed with a sliding block (10) for limiting the main body.

3. A streamlined sound absorbing and damping sheet according to claim 1, characterized in that: The outer side of the outer frame (1) is fixed with a limiting frame (11), and the inner wall of the limiting frame (11) is threadedly connected with a vertically arranged lead screw (12).

4. A streamlined sound absorbing and damping sheet according to claim 3, characterized in that: The bottom end of the lead screw (12) is fixed with a rotating disc (13), and the top end of the lead screw (12) is rotatably connected with a transversely arranged push plate (14).

5. A streamlined sound absorbing panel according to claim 4, wherein: The top of the push plate (14) is fixed with an insertion block (15) for clamping and fixing the main body, and the number of insertion blocks (15) is two groups.

6. A streamlined sound absorbing panel according to claim 5, wherein: The bottom of the push plate (14) is fixed with a vertically arranged limiting rod (16), and the outer side of the limiting rod (16) is slidably connected with the inner wall of the limiting frame (11).

7. A streamlined sound absorbing and attenuating sheet according to claim 1, wherein: The outer side of the outer frame (1) is fixed with a clamping block (17), and the inner wall of the clamping block (17) is provided with a limiting hole (18) for limiting the insertion block (15).

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