Silencing pad with high-damping shock absorption function

Abstract

The utility model relates to the technical field of noise control and vibration isolation, in particular to a silencing pad with a high-damping shock absorption function, which comprises a silencing layer, a damping layer, a shock absorption layer and a shock absorption device, a square groove is arranged on the top wall of the shock absorption layer, the damping layer is arranged at the top end of the square groove, the silencing layer is arranged above the damping layer, and the shock absorption device is arranged on the damping layer. The damping device is installed in the damping layer, the damping device comprises a circular groove, a damping rod, a supporting cylinder and a spring, due to the existence of the damping device, vibration and impact are effectively isolated and absorbed, noise generated by vibration is reduced, meanwhile, sound waves can be further absorbed and dissipated through the cooperation of the silencing layer and the damping layer, and the noise reduction effect is improved. The damping device can stably support and fix the silencing pad, displacement or deformation of the silencing pad due to vibration is prevented, and therefore the good working performance and appearance of the silencing pad are kept.

Description

Technical Field

[0001] The utility model relates to the technical field of noise control and vibration isolation, in particular to a sound-absorbing pad with high damping and shock-absorbing functions. Background Art

[0002] As we all know, with the rapid development of modern industry and urbanization, vibration and noise pollution problems have become increasingly serious, causing significant impacts on people's lives, work and health. In the fields of machinery and equipment, transportation, construction, etc., the generation of vibration and noise is inevitable. Sound-absorbing pads, as the name suggests, are pads that can eliminate or reduce the propagation of sound.

[0003] Although traditional sound-absorbing pads have the effect of shock absorption and noise reduction to a certain extent, their performance is often difficult to achieve the ideal effect when facing high-frequency vibrations or strong impacts, resulting in poor shock absorption effect. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a sound-absorbing pad with high damping and shock-absorbing functions.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a sound-absorbing pad with high damping and shock-absorbing function, comprising a sound-absorbing layer, a damping layer, a shock-absorbing layer and a shock-absorbing device, the top wall of the shock-absorbing layer is provided with a square groove, the damping layer is installed on the top of the square groove, the sound-absorbing layer is installed above the damping layer, the shock-absorbing device is installed in the damping layer, the shock-absorbing device comprises a circular groove, a damping rod, a support tube and a spring, the damping layer is provided with a plurality of circular grooves which pass through up and down, the support tube is installed in the circular groove, the bottom wall of the support tube is fixedly connected to the top wall of the shock-absorbing layer, the damping rod is slidably installed on the top of the support tube, the outer walls of the support tube and the damping rod are sleeved with the spring, the top wall of the damping rod and the top wall of the spring are both fixedly connected to the bottom wall of the sound-absorbing layer.

[0008] Preferably, the utility model is improved in that the damping rod, the support tube and the spring are all made of rubber material.

[0009] Preferably, the utility model is improved in that the sound-absorbing layer is made of high-density polyester fiber material and has a thickness of 10 mm.

[0010] Preferably, the utility model is improved in that the damping layer is made of high damping material and has a thickness of 5 mm.

[0011] Preferably, the utility model is improved in that the shock-absorbing layer is made of elastic material and has a thickness of 5 mm.

[0012] In order to improve the sound absorption effect of the sound-absorbing layer, the utility model is improved in that a plurality of small holes are provided on the sound-absorbing layer.

[0013] Preferably, the utility model is improved in that the diameter of the small holes is 1 mm and the spacing is 2 mm.

[0014] In order to facilitate the connection between the damping layer and the shock absorbing layer, the utility model is improved in that a connecting layer is arranged between the damping layer and the shock absorbing layer, and the thickness of the connecting layer is 1 mm.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a sound-absorbing pad with high damping and shock-absorbing function, which has the following beneficial effects:

[0017] The sound-absorbing pad with high damping and shock-absorbing function has a shock-absorbing device. When the sound-absorbing layer on the top of the sound-absorbing pad is vibrated or impacted, the sound-absorbing layer acts on the damping layer. After the damping layer provides a certain buffer, the shock-absorbing device embedded in the damping layer can respond quickly. The damping rod slides in the support tube, and the spring provides elastic support for the damping rod. This structure allows the shock-absorbing device to respond to vibration or impact in a short time, thereby effectively reducing the transmission of vibration and improving the shock-absorbing effect of the sound-absorbing pad. At the same time, the cooperation between the sound-absorbing layer and the damping layer can further absorb and dissipate sound waves and improve the noise reduction performance of the sound-absorbing pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the hidden structure of the sound-absorbing layer of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall half-section three-dimensional structure of the utility model;

[0021] Figure 4 For the utility model Figure 3 An enlarged structural diagram of local A.

[0022] In the figure: 1. Sound-absorbing layer; 2. Damping layer; 3. Shock-absorbing layer; 4. Square groove; 5. Round groove; 6. Damping rod; 7. Support tube; 8. Spring; 9. Small hole; 10. Connection layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 , a sound-absorbing pad with high damping and shock-absorbing function, comprising a sound-absorbing layer 1, a damping layer 2, a shock-absorbing layer 3 and a shock-absorbing device, the top wall of the shock-absorbing layer 3 is provided with a square groove 4, the damping layer 2 is installed on the top of the square groove 4, the sound-absorbing layer 1 is installed above the damping layer 2, and the shock-absorbing device is installed in the damping layer 2, the shock-absorbing device comprises a circular groove 5, a damping rod 6, a support tube 7 and a spring 8, a plurality of circular grooves 5 penetrating from top to bottom are provided on the damping layer 2, the support tube 7 is installed in the circular groove 5, the bottom wall of the support tube 7 is fixedly connected to the top wall of the shock-absorbing layer 3, the damping rod 6 is slidably installed on the top of the support tube 7, the outer walls of the support tube 7 and the damping rod 6 are sleeved with the spring 8, the top wall of the damping rod 6 and the top wall of the spring 8 are both fixedly connected to the bottom wall of the sound-absorbing layer 1, in this embodiment, When in use, the damping rod 6, support tube 7 and spring 8 in the shock absorbing device are combined to form an effective shock absorbing system. When the sound absorbing layer 1 at the top of the sound absorbing pad is vibrated or impacted, this system can respond quickly, and the damping rod 6 slides in the support tube 7, and the spring 8 provides elastic support for the damping rod 6. The damping effect of the damping rod 6, the supporting effect of the support tube 7 and the buffering effect of the spring 8 jointly reduce the transmission of vibration and the diffusion of energy, thereby greatly improving the shock absorbing effect of the sound absorbing pad. Due to the presence of the shock absorbing device, vibration and impact are effectively isolated and absorbed, and the noise generated by vibration is reduced. At the same time, the cooperation between the sound absorbing layer 1 and the damping layer 2 can further absorb and dissipate sound waves, thereby improving the noise reduction performance of the sound absorbing pad. The shock absorbing device can stably support and fix the sound absorbing pad to prevent it from displacement or deformation due to vibration, thereby maintaining its good working performance and appearance.

[0025] Preferably, in the present embodiment, the damping rod 6, the support tube 7 and the spring 8 are all made of rubber material. The rubber material itself has good damping performance and can effectively absorb and dissipate vibration energy. When the silencer pad is subjected to vibration or impact, the damping rod 6, the support tube 7 and the spring 8 made of rubber material can respond quickly and buffer the vibration energy through their internal molecular friction and viscoelastic deformation, thereby reducing the transmission and diffusion of vibration without affecting the characteristics of the silencer pad body.

[0026] Preferably, in this embodiment, the sound-absorbing layer is made of high-density polyester fiber material and has a thickness of 10 mm. The high-density polyester fiber material has a large number of tiny air layers inside, forming a porous structure, which allows the sound to be reflected and scattered multiple times when passing through, thereby achieving a sound-absorbing effect.

[0027] Preferably, in this embodiment, the damping layer 2 is made of high-damping material and has a thickness of 5 mm. Since the damping layer 2 is made of high-damping material, it can provide stable damping performance at various frequencies and temperatures. This adaptability enables the damping layer 2 to maintain its performance in various working environments. Although a thicker damping layer 2 may provide better damping effect, a thickness of 5 mm is a relatively reasonable choice, which can provide sufficient damping effect while maintaining a relatively low cost.

[0028] Preferably, in this embodiment, the shock-absorbing layer 3 is made of elastic material and has a thickness of mm. The elastic material has good elasticity and deformation ability, can effectively absorb and disperse impact energy, thereby playing a shock-absorbing role. The shock-absorbing layer 3 with a thickness of 5 mm provides sufficient material thickness to ensure sufficient shock-absorbing effect.

[0029] In actual use, it is convenient to further improve the sound absorption effect of the sound-absorbing layer 1. In this embodiment, a plurality of small holes 9 are provided on the sound-absorbing layer 1. The design of the small holes 9 can affect the propagation path and reflection mode of the sound waves, thereby broadening the sound absorption effect of the sound-absorbing layer 1 on sound waves of different frequencies. By reasonably designing the size, shape and distribution of the small holes 9, the sound-absorbing layer 1 can play a sound absorption role in a wider frequency range.

[0030] Preferably, in this embodiment, the diameter of the small holes 9 is 1 mm and the spacing is 2 mm. The small holes with a diameter of 1 mm provide appropriate apertures on the sound-absorbing layer 1 to ensure that the sound waves can fully interact with the small holes 9 while maintaining sufficient structural strength. By increasing the number of small holes 9, the sound absorption performance of the sound-absorbing layer is improved.

[0031] In actual use, it is further convenient to connect the damping layer 2 and the shock-absorbing layer 3. In this embodiment, a connecting layer 10 is arranged between the damping layer 2 and the shock-absorbing layer 3. The thickness of the connecting layer 10 is 1 mm. The connecting layer is an adhesive. The connecting layer 10 can effectively connect the damping layer 2 and the shock-absorbing layer 3 together to form an integral structure. The connecting layer 10 with a thickness of 1 mm provides sufficient material thickness, ensures the stability and reliability of the connection, and avoids loosening or falling off during use.

[0032] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sound-absorbing pad with high damping and shock-absorbing function, comprising a sound-absorbing layer (1), a damping layer (2), a shock-absorbing layer (3) and a shock-absorbing device, characterized in that: The top wall of the shock-absorbing layer (3) is provided with a square groove (4), the damping layer (2) is installed at the top of the square groove (4), the sound-absorbing layer (1) is installed above the damping layer (2), the shock-absorbing device is installed in the damping layer (2), and the shock-absorbing device comprises a circular groove (5), a damping rod (6), a support tube (7) and a spring (8). The damping layer (2) is provided with a plurality of circular grooves (5) that pass through from top to bottom, the support tube (7) is installed in the circular groove (5), the bottom wall of the support tube (7) is fixedly connected to the top wall of the shock-absorbing layer (3), the damping rod (6) is slidably installed at the top of the support tube (7), the outer walls of the support tube (7) and the damping rod (6) are sleeved with the spring (8), and the top wall of the damping rod (6) and the top wall of the spring (8) are both fixedly connected to the bottom wall of the sound-absorbing layer (1).

2. The sound-absorbing pad with high damping and shock-absorbing function according to claim 1 is characterized in that: The damping rod (6), the supporting tube (7) and the spring (8) are all made of rubber material.

3. The sound-absorbing pad with high damping and shock-absorbing function according to claim 2 is characterized in that: The sound-absorbing layer (1) is made of high-density polyester fiber material and has a thickness of 10 mm.

4. The sound-absorbing pad with high damping and shock-absorbing function according to claim 3 is characterized in that: The damping layer (2) is made of high damping material and has a thickness of 5 mm.

5. The sound-absorbing pad with high damping and shock-absorbing function according to claim 4 is characterized in that: The shock-absorbing layer (3) is made of elastic material and has a thickness of 5 mm.

6. The sound-absorbing pad with high damping and shock-absorbing function according to claim 5, characterized in that: The sound-absorbing layer (1) is provided with a plurality of small holes (9).

7. The sound-absorbing pad with high damping and shock-absorbing function according to claim 6 is characterized in that: The diameter of the small holes (9) is 1 mm, and the spacing is 2 mm.

8. The sound-absorbing pad with high damping and shock-absorbing function according to claim 7 is characterized in that: A connecting layer (10) is provided between the damping layer (2) and the shock absorbing layer (3), and the thickness of the connecting layer (10) is 1 mm.

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