Ecological environment-friendly noise absorption device for forest belt

Abstract

The invention belongs to the technical field of ecological noise reduction devices, and particularly discloses an ecological environment-friendly noise absorption device for forest belts, which comprises a mounting part and a silencing part. The installation part comprises at least two installation pieces, the installation pieces are used for being arranged on forest belt trees in a sleeving mode in a one-to-one correspondence mode, the silencing parts are correspondingly installed between every two adjacent installation pieces, the silencing parts and the forest belt form a silencing wall used for silencing, and each silencing part comprises a plurality of silencing plate pieces which are spliced in sequence; each silencing plate comprises a cavity shell, a solid noise reduction layer and a liquid noise reduction layer, the solid noise reduction layers are ecological fragments, and the liquid noise reduction layers are liquid water. The silencing wall for silencing is formed by the silencing part and the forest belt, so that the overall noise absorption effect is enhanced through the silencing part on the basis of the forest belt with certain noise reduction capacity, and existing forest belt resources can be fully utilized. And the silencing part is subjected to double noise reduction treatment through the solid noise reduction layer and the liquid noise reduction layer, and the good noise reduction effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of ecological noise reduction devices, and in particular relates to an ecological and environmentally friendly noise absorption device for a forest belt. Background Art

[0002] Forest belts, also known as green belts, are a general term for belt-shaped protective forests used in farmland, residential areas, between urban and rural areas, around factories and mines, and on both sides of roads, rivers, and channels. With the acceleration of urbanization, urban noise pollution has become increasingly prominent, affecting the quality of citizens' living environment. Among them, road traffic noise has become one of the main sources of urban noise. Compared with the installation of sound barriers, the application of low-noise pavement and other control measures, setting up forest belts on both sides of the road, namely green belts, can not only block the propagation of sound waves, but also have the function of separating traffic, purifying the air, and beautifying the environment. Therefore, it has been widely promoted.

[0003] As we all know, the principle of noise reduction in forest belts is to form a "green wall" to reflect and absorb sound waves to prevent them from propagating. The density of trees in the forest belt plays a crucial role in noise reduction, that is, the greater the density of trees, the better the noise reduction effect. In addition, considering the need to block and reduce urban noise, the trees to be planted should be a combination of evergreen shrubs and evergreen trees, and a forest belt of sufficient width is required to form a denser "green wall". However, the street trees along the main roads of the city are planted in a scattered manner, which generally do not have a good noise reduction effect.

[0004] At present, due to the regional restrictions of forest belts, it is difficult to increase the tree density infinitely within a certain area. This is mainly because trees need a certain amount of space to grow, so planting trees too densely is difficult to ensure the survival rate of trees. In addition, due to the influence of urban development, the area of ​​forest belts on both sides of the road is too limited, and it is impossible to form a wider forest belt to achieve a better noise reduction effect. What's more, for the forest belts on both sides of the road that have been built, it also requires a lot of investment to rebuild them to have a better noise reduction effect, and such measures are not advisable.

[0005] Therefore, there is an urgent need for an eco-friendly noise absorption device for forest belts to improve the noise reduction effect of the forest belts on both sides of the existing roads. Summary of the invention

[0006] In view of the above-mentioned problems, the object of the present invention is to provide an eco-friendly noise absorbing device for forest belts.

[0007] The technical solution of the present invention is: an ecological and environmentally friendly noise absorbing device for a forest belt, comprising a mounting part and a silencer part.

[0008] The installation part includes at least two installation parts, each of which is used to be mounted on the trees in the forest belt in a one-to-one manner. This installation method can make full use of the existing forest belt resources and does not require the construction of additional large-scale supporting structures. For example, the device can be directly installed on the existing street forest belts or road green belts in the city, saving space and infrastructure costs.

[0009] There is at least one set of silencing parts, which are installed between two adjacent mounting parts, and form a silencing wall with the forest belt for silencing. Since most forest belts have a certain noise reduction ability, coupled with the role of the silencing parts, the overall noise absorption effect can be enhanced. The trees in the forest belt can block, scatter and absorb part of the noise, while the silencing wall can further process the remaining noise passing through the forest belt.

[0010] The sound-absorbing part comprises a plurality of sound-absorbing panels which are spliced ​​in sequence, and each of the sound-absorbing panels comprises a cavity shell, a solid noise reduction layer and a liquid noise reduction layer.

[0011] The cavity shell includes a shell, a partition, an adjustment member and a bag. The interior of the shell is a hollow structure; the partition is slidably arranged in the shell through the adjustment member, and the partition divides the hollow structure into a front cavity and a rear cavity, and a hole is opened on the side wall of the front cavity; the adjustment member is used to adjust the position of the partition to adjust the actual effective volume of the front cavity and the rear cavity; the bag is a deformable structure and is placed in the rear cavity. The partition in the cavity shell can slide in the internal hollow structure of the shell through the adjustment member, and the actual effective volume of the front cavity and the rear cavity can be adjusted. This feature allows the device to be optimized according to different noise frequencies and intensities. For example, for forest belts on different roads and forest belts of different widths on the same road, the volume of the front cavity or the rear cavity can be increased by adjusting the actual position of the adjustment member inside the shell, and the bag in the rear cavity is a deformable structure, so the actual thickness of the solid noise reduction layer and the liquid noise reduction layer can be adjusted to change the space for sound propagation, thereby better attenuating noise.

[0012] The solid noise reduction layer is filled in the front cavity, and the solid noise reduction layer is ecological crushed powder. The liquid noise reduction layer is filled in the capsule, and the liquid noise reduction layer is liquid water. The solid noise reduction layer is filled in the front cavity with ecological crushed powder. The ecological crushed powder can be made of some degradable plant materials or crushed powder of other environmentally friendly materials. This kind of material is widely available and environmentally friendly. While absorbing noise, it will not pollute the environment. Moreover, the physical structure of the ecological crushed powder can scatter and absorb the sound, thereby reducing the noise. The liquid noise reduction layer is filled in the capsule with liquid water. Liquid water is a common and easily obtained substance. Water has a certain absorption and damping effect on sound, especially for high-frequency noise. It has a good absorption effect. Liquid water in the capsule can fluctuate with the vibration of sound. This fluctuation will consume the energy of the sound, thereby reducing the noise.

[0013] Furthermore, the ecological debris is any one or more strip-shaped debris of fallen leaves, weeds, and straw. Using fallen leaves, weeds, knotted straws, etc. as ecological debris to fill in the sound-absorbing panels can not only improve the sound-absorbing effect, but also have the advantages of environmental protection, high cost-effectiveness, strong availability and beauty. Because these materials are natural and biodegradable, they will not pollute the environment. They are usually by-products of agricultural or forestry production. Using them as sound-absorbing materials can effectively reduce the accumulation of waste and realize the recycling of resources. In addition, materials such as fallen leaves, weeds, and knotted straws have complex internal structures, which can effectively absorb and scatter sound waves, thereby reducing the propagation of noise. Their fiber structure and porosity can increase the propagation path of sound waves, so that sound waves are reflected and absorbed multiple times inside the material, thereby improving the sound-absorbing effect. These materials are usually low-cost or free of cost, because they are waste products of agricultural and forestry production. Using these materials as sound-absorbing materials can significantly reduce production costs and also solve the problem of waste disposal.

[0014] Furthermore, the liquid water is rainwater. Rainwater is a natural resource. Using rainwater as a liquid noise reduction layer can reduce dependence on other water resources and reduce the impact on the environment. In addition, the collection and use of rainwater is usually cheaper than the processing and supply costs of other water resources. By using rainwater as a liquid noise reduction layer, the operating cost of the silencing device can be reduced, and at the same time, natural resources can be effectively utilized to achieve resource recycling. In addition, during the continuous use of the device, the liquid water can be automatically replenished when it rains, which has the advantages of being environmentally friendly and cost-effective.

[0015] Furthermore, the bag includes a bag body and a mounting bar. The bag body is a deformable structure with a bag opening. There are two mounting bars, which are arranged at the bag opening relative to each other, one of which is fixed on the partition plate, and the other is fixed on the side wall of the shell body located in the rear cavity and opposite to the partition plate; a water leakage groove is arranged on the top of the rear cavity. Since the sliding direction of the partition plate is along the direction perpendicular to the plane of the partition plate, the two mounting bars are arranged relative to each other, and they are respectively fixed on the partition plate and the side wall of the shell body. When the partition plate slides, the bag opening will also shrink or expand accordingly. In addition, this fixing method can make the bag body stably installed in the rear cavity of the cavity shell. When the device is subjected to external vibration or air flow impact, the bag will not fall off due to random shaking or displacement, thereby ensuring the normal working state of the liquid noise reduction layer in the bag, thereby maintaining a stable noise reduction effect. In addition, a water leakage groove is arranged on the top of the rear cavity, which is just above the bag opening. When it rains, rainwater can fall into the bag through the water leakage groove.

[0016] Furthermore, a filter is provided on the drain groove, and the filter can be used to effectively filter rainwater entering the bag to prevent debris from falling into the bag through the drain groove.

[0017] Furthermore, at least one overflow port is provided on the bag body; a guide pipe is provided on the side wall of the shell body located in the rear cavity, the water inlet of the guide pipe is connected to the overflow port, and the water outlet is located below the rear cavity; when two silencer panels are stacked up and down, the water outlet of the guide pipe of the upper silencer panel is located directly above the water leakage groove of the lower silencer panel. In actual implementation, multiple layers of silencer panels may be arranged from top to bottom, so the silencer panel located at the bottom cannot also have the problem of the water leakage groove being blocked by the upper silencer panel, which will lead to the problem that the lower silencer panel cannot replenish rainwater to the bag through the water leakage groove in time when it rains. Therefore, the use of the guide pipe can effectively avoid this problem. When the rainwater in the bag in the upper silencer panel is collected to the height corresponding to the overflow port, the rainwater that continues to enter the bag through the water leakage groove will be guided to the water leakage groove of the lower silencer panel through the guide pipe. Therefore, this design can make the liquid water between the silencer panels stacked up and down orderly transferred. Through this orderly liquid water diversion and discharge design, the liquid water capacity inside each silencer panel is ensured to be within a reasonable range, thereby maintaining the weight balance of the silencer panel. This helps to improve the stability of the entire silencer device during installation and use, and prevents the device from tilting, shaking, etc. due to excessive or insufficient local liquid water, thereby ensuring the stable performance of the silencer effect.

[0018] Furthermore, a protective net is provided on the hole. On the one hand, the protective net is used to protect the solid noise reduction layer to prevent it from falling from the hole. Because the solid noise reduction layer is ecological fragments, its own volume is relatively small. Moreover, after filling it in the front cavity, if you want to reduce the effective volume in the front cavity by sliding the partition plate to increase the actual density of the solid noise reduction layer, the partition plate will push the ecological fragments to move toward the direction close to the hole. Therefore, the provision of a protective net can effectively avoid the problem of ecological fragments falling. On the other hand, because the device is located in the forest belt and the solid noise reduction layer is ecological fragments, the protective net can effectively prevent insects and birds from entering the interior of the sound-absorbing panel through the hole, thereby preventing these foreign objects from damaging the solid noise reduction layer and the liquid noise reduction layer, thereby ensuring the normal operation and sound-absorbing effect of the sound-absorbing panel.

[0019] Furthermore, the cavity shell also includes a sound collecting cover, which is a funnel-shaped structure, and its smaller end is connected to the hole. The funnel-shaped sound collecting cover can effectively concentrate the noise to the smaller opening end, that is, the end connected to the hole. This design is similar to the "horn effect" in acoustics, which can gather sound signals and improve the efficiency of sound collection.

[0020] Furthermore, a plurality of sound guide grooves are arranged on the inner side wall of the sound receiving cover along the circumference of the axis thereof, and a sound guide rod is embedded in the sound guide groove, and one end of the sound guide rod near the hole passes through the protective net and is inserted in the front cavity. The sound guide rod provides a specific path for sound conduction, and can guide the sound to be conducted from the sound receiving cover to the hole in a more orderly manner. This structure can reduce the scattering and reflection of the sound during the conduction process, and improve the efficiency of sound conduction. One end of the sound guide rod near the hole passes through the protective net and is inserted in the front cavity, so that the sound can be more accurately focused on the front cavity, which helps to transmit the collected sound more concentratedly to the internal structure of the sound-absorbing panel for processing, thereby improving the sound processing effect of the sound-absorbing device. In addition, the sound guide rod is inserted in the front cavity, which can supplement the acoustic structure of the front cavity. It can change the sound propagation characteristics in the front cavity, such as adjusting the reflection and refraction of the sound, so that the front cavity plays a more effective role in the sound-absorbing process of the entire sound-absorbing panel, and further improves the sound-absorbing performance of the sound-absorbing panel.

[0021] Furthermore, the sound guide rod is connected to the protective net and is an integrated structure, avoiding the use of connecting parts between the two. This direct one-piece molding method reduces the risk of structural instability caused by loosening or falling off of connecting parts. During long-term use, regardless of the impact of external vibrations, temperature changes or other factors, the integrated structure can maintain good integrity and ensure the stability of the entire silencer structure. What's more, since the sound guide rod is integrated with the protective net, in the process of sound being transmitted from the sound cover through the sound guide rod to the front cavity, there will be no additional loss or scattering of sound energy due to the existence of the connection interface. The sound can be more coherently transmitted from the sound cover through the sound guide rod to the protective net structure to the front cavity, thereby improving the efficiency of sound conduction.

[0022] Compared with the prior art, the beneficial effect of the present invention is that the present invention forms a sound-absorbing wall for sound-absorbing through the sound-absorbing part and the forest belt, so that the overall noise absorption effect is enhanced by the sound-absorbing part on the basis of the forest belt with certain noise reduction ability, and the existing forest belt resources can be fully utilized. The sound-absorbing part performs double noise reduction treatment through the solid noise reduction layer and the liquid noise reduction layer, and has a better noise reduction effect. Among them, the solid noise reduction layer adopts ecological crushing, which is a material with a wide source and environmentally friendly. While absorbing noise, it will not pollute the environment, and the physical structure of the ecological crushing can scatter and absorb the sound, thereby reducing the noise. The liquid noise reduction layer adopts liquid water, which is a common and easily obtained substance. Liquid water has a certain absorption and damping effect on sound, especially for high-frequency noise. It has a good absorption effect. The liquid water in the bag can fluctuate with the vibration of the sound. This fluctuation will consume the energy of the sound, thereby reducing the noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 is a cross-sectional view of the sound-absorbing panel of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the pouch of the present invention;

[0026] Figure 4 is a partial cross-sectional enlarged view of the sound-absorbing panel of the present invention;

[0027] Figure 5 is a schematic structural diagram of a sound-absorbing panel according to Embodiment 1 of the present invention;

[0028] Figure 6 It is a partial structural exploded view of the sound-absorbing plate of Example 1 of the present invention;

[0029] Figure 7 is a schematic structural diagram of a sound-absorbing panel according to Embodiment 2 of the present invention;

[0030] Figure 8 It is a schematic diagram of the partial structure of the pouch of Example 3 of the present invention.

[0031] Among them, 1-installation part, 10-installation part, 2-silencing part, 20-silencing plate part, 3-cavity shell part, 31-shell part, 310-hole, 3100-protective net, 311-front cavity, 312-rear cavity, 3120-leakage trough, 3121-filter part, 32-partition plate, 33-adjustment part, 34-bag, 341-bag body, 3410-bag mouth, 3411-silencing cavity, 342-installation strip, 343-sphere, 35-guide tube, 36-sound collecting cover, 360-sound guide rod, 4-solid noise reduction layer, 5-liquid noise reduction layer. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 To the attached Figure 8 , the specific implementation methods of the present invention are described in detail. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0033] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0034] Example 1

[0035] like Figure 1 As shown, an eco-friendly noise absorbing device for a forest belt comprises a mounting portion 1 and a silencer portion 2.

[0036] The mounting part 1 includes at least two mounting parts 10, each mounting part 10 is used to be mounted on the trees in the forest belt in a one-to-one correspondence. This mounting method can make full use of the existing forest belt resources and does not require the construction of additional large-scale supporting structures. For example, the device can be directly installed on the existing street forest belts or road greening forest belts in the city, saving space and infrastructure costs.

[0037] There is at least one group of silencer parts 2, which are correspondingly installed between two adjacent mounting parts 10, and form a silencer wall for silencing with the forest belt. Since most forest belts have a certain noise reduction ability themselves, coupled with the effect of the silencer part 2, the overall noise absorption effect can be enhanced. The trees in the forest belt can block, scatter and absorb part of the noise, while the silencer wall can further process the remaining noise passing through the forest belt. The mounting part 10 of this embodiment is a conventional mounting part available on the market. The mounting part of this embodiment is preferably an adjustable mounting part with a rope, wherein the adjustable hoop is fixed on the trees in the forest belt, and the two ends of the rope are fixed on the hoops of the trees in the adjacent forest belts. The rope can be a commercially available rope such as hemp rope, nylon rope, etc., and the silencer part 2 is connected to the rope by a buckle, or is tied to the rope by a metal wire.

[0038] like Figure 1 , Figure 2 , Figure 4 As shown, the silencer part 2 includes a plurality of silencer panels 20 which are sequentially connected, and each silencer panel 20 includes a cavity shell 3, a solid noise reduction layer 4 and a liquid noise reduction layer 5. The cavity shell 3 includes a shell 31, a partition plate 32, an adjustment member 33 and a bag 34. The interior of the shell 31 is a hollow structure; the partition plate 32 is slidably arranged in the shell 31 through the adjustment member 33, and the partition plate 32 divides the hollow structure into a front cavity 311 and a rear cavity 312, and a hole 310 is provided on the side wall of the front cavity 311; the adjustment member 33 is used to adjust the position of the partition plate 32 so as to adjust the actual effective volume of the front cavity 311 and the rear cavity 312; the bag 34 is a deformable structure, which is placed in the rear cavity 312. As shown Figure 2 , Figure 4As shown, the adjusting member 33 of this embodiment is a bolt, the end of which penetrates the rear cavity 312 and is rotatably arranged on the side wall of the front cavity 311 opposite to the partition plate 32. The partition plate 32 is provided with a screw hole, and the adjusting member 33 is threadedly connected with the screw hole. When the adjusting member 33 is rotated, the partition plate 32 can slide inside the hollow structure of the shell 31. It should be noted that: a limiting groove is provided on the inner side wall of the shell 31, and the partition plate 32 is clamped in the limiting groove. The limiting groove is used to limit the partition plate 32 to prevent it from excessively compressing the effective volume of the front cavity 311 or the rear cavity 312, resulting in failure of either cavity, that is, the thickness of the front cavity 311 or the rear cavity 312 is not zero.

[0039] The solid noise reduction layer 4 is filled in the front cavity 311, and the solid noise reduction layer 4 is ecological powder. The liquid noise reduction layer 5 is filled in the capsule 34, and the liquid noise reduction layer 5 is liquid water.

[0040] The partition plate 32 in the cavity shell 3 can slide in the internal hollow structure of the shell 31 through the adjusting member 33, and can adjust the actual effective volume of the front cavity 311 and the rear cavity 312. This feature allows the device to be optimized according to different noise frequencies and intensities. For example, for forest belts on different roads and forest belts of different widths on the same road, the volume of the front cavity 311 or the rear cavity 312 can be increased by adjusting the actual position of the adjusting member 33 inside the shell 31, and the bag 34 in the rear cavity 312 is a deformable structure, so the actual thickness of the solid noise reduction layer 4 and the liquid noise reduction layer 5 can be adjusted to change the space for sound propagation, thereby better attenuating noise.

[0041] The bag 34 is a deformable structure. This flexibility can buffer the pressure during sound propagation to a certain extent, and can adaptively adjust the internal space according to actual conditions to further optimize the sound-absorbing effect.

[0042] The solid noise reduction layer 4 is filled with ecological crumbs in the front cavity 311. The ecological crumbs can be made of some degradable plant materials or other environmentally friendly materials. Such materials are widely available and environmentally friendly. While absorbing noise, they will not pollute the environment. Moreover, the physical structure of the ecological crumbs can scatter and absorb the sound, thereby reducing the noise. The liquid noise reduction layer 5 is filled with liquid water in the capsule 34. Liquid water is a common and easily accessible substance. Liquid water has a certain absorption and damping effect on sound, especially for high-frequency noise. Liquid water in the capsule 34 can fluctuate with the vibration of the sound. Such fluctuations will consume the energy of the sound, thereby reducing the noise.

[0043] Preferably, the ecological debris is any one or more strip-shaped debris of fallen leaves, weeds, and straw. Using fallen leaves, weeds, knotted straws, etc. as ecological debris to fill the sound-absorbing plate 20 can not only improve the sound-absorbing effect, but also have the advantages of environmental protection, high cost-effectiveness, strong availability and beauty. Because these materials are natural and biodegradable, they will not pollute the environment. They are usually by-products of agricultural or forestry production. Using them as sound-absorbing materials can effectively reduce the accumulation of waste and realize the recycling of resources. In addition, materials such as fallen leaves, weeds, and knotted straws have complex internal structures, which can effectively absorb and scatter sound waves, thereby reducing the propagation of noise. Their fiber structure and porosity can increase the propagation path of sound waves, so that sound waves are reflected and absorbed multiple times inside the material, thereby improving the sound-absorbing effect. These materials are usually low-cost or cost-free, because they are waste products of agricultural and forestry production. Using these materials as sound-absorbing materials can significantly reduce production costs and solve the problem of waste disposal. In this embodiment, the ecological shreds are made of pine needles. It should be noted that when the fallen leaves, weeds, and straws themselves are in a strip structure and the effective cross-section is less than 10mm 2 If the length of the leaves, weeds and straw is smaller than 10mm, it is only necessary to cut them into strips. Otherwise, the fallen leaves, weeds and straw need to be crushed.

[0044] Preferably, the liquid water is rainwater. Rainwater is a natural resource. Using rainwater as a liquid noise reduction layer can reduce dependence on other water resources and reduce the impact on the environment. In addition, the collection and use of rainwater is usually cheaper than the processing and supply costs of other water resources. By using rainwater as a liquid noise reduction layer, the operating cost of the silencing device can be reduced, and natural resources can also be effectively utilized to achieve resource recycling. In addition, during the continuous use of the device, the liquid water can be automatically replenished when it rains, which has the advantages of being environmentally friendly and cost-effective.

[0045] Preferably, Figure 3 As shown, the bag 34 includes a bag body 341 and a mounting strip 342. The bag body 341 is a deformable structure and has a bag opening 3410. There are two mounting strips 342, which are arranged opposite to each other at the bag opening 3410, one of which is fixed on the partition plate 32, and the other is fixed on the side wall of the housing 31 located in the rear cavity 312 and opposite to the partition plate 32; a drain groove 3120 is arranged on the top of the rear cavity 312. The bag body 341 is made of latex.

[0046] like Figure 2 , Figure 4 As shown, since the sliding direction of the partition plate 32 is along the direction perpendicular to the plane of the partition plate 32, Figure 2The two mounting strips 342 are arranged opposite to each other, and are fixed on the partition plate 32 and the side wall of the shell 31 respectively. When the partition plate 32 slides, the bag opening 3410 will shrink or expand accordingly. In addition, this fixing method can stably install the bag body 341 in the rear cavity 312 of the cavity shell 3. When the device is subjected to external vibration or air flow impact, the bag 34 will not fall off due to random shaking or displacement, thereby ensuring the normal working state of the liquid noise reduction layer 5 in the bag 34, thereby maintaining a stable noise reduction effect. In addition, a water leakage groove 3120 is provided at the top of the rear cavity 312, which is located just above the bag opening 3410. When it rains, rainwater can fall into the bag 34 through the water leakage groove 3120. It should be noted that when the method is implemented in an area with less rainfall, a water collecting cover may be added to the water leakage groove 3120 of the uppermost sound-absorbing panel 20 . The water collecting cover is used to collect rainwater so that more rainwater falls into the bag 34 through the water leakage groove 3120 .

[0047] Preferably, Figure 4 As shown, a filter 3121 is provided on the drain groove 3120 , and the filter 3121 can be used to effectively filter rainwater entering the bag 34 to prevent debris from falling into the bag 34 through the drain groove 3120 .

[0048] Preferably, Figure 4 As shown, at least one overflow port is provided on the bag body 341. A flow guide pipe 35 is provided on the side wall of the shell 31 located in the rear cavity 312. The water inlet of the flow guide pipe 35 is connected to the overflow port, and the water outlet is located below the rear cavity 312. When two silencer panels 20 are stacked up and down, the water outlet of the flow guide pipe 35 of the upper silencer panel 20 is located directly above the water leakage groove 3120 of the lower silencer panel 20. Figure 1 As shown, in actual implementation, multiple layers of silencer panels 20 may be arranged from top to bottom. Therefore, the silencer panels 20 located at the bottom cannot have the leakage groove 3120 blocked by the upper silencer panels 20. Therefore, when it rains, the silencer panels 20 at the bottom cannot replenish the rainwater to the bag 34 through the leakage groove 3120 in time. Therefore, the use of the guide pipe 35 can effectively avoid this problem. When the rainwater in the bag 34 in the upper silencer panel 20 is collected to the height corresponding to the overflow port, the rainwater that continues to enter the bag 34 through the leakage groove 3120 will be guided to the leakage groove 3120 of the lower silencer panel 20 through the guide pipe 35. Therefore, this design can make the liquid water between the silencer panels 20 stacked up and down orderly transferred. Through this orderly liquid water diversion and discharge design, the capacity of liquid water inside each silencer panel 20 is ensured to be within a reasonable range, thereby maintaining the weight balance of the silencer panel 20. This helps to improve the stability of the entire silencer device during installation and use, prevent the device from tilting, shaking, etc. due to excessive or insufficient local liquid water, and ensure the stable performance of the silencer effect.

[0049] Preferably, Figure 5 , Figure 6 As shown, a protective net 3100 is provided on the hole 310. On the one hand, the protective net 3100 is used to protect the solid noise reduction layer 4 to prevent it from falling from the hole 310. Because the solid noise reduction layer 4 is ecological fragments, its own volume is relatively small. Moreover, after filling it in the front cavity 311, if you want to reduce the effective volume in the front cavity 311 by sliding the partition plate 32 to increase the actual density of the solid noise reduction layer 4, the partition plate 32 will push the ecological fragments to move toward the direction close to the hole 310. Therefore, the provision of the protective net 3100 can effectively avoid the problem of ecological fragments falling. On the other hand, because the device is located in the forest belt and the solid noise reduction layer 4 is ecological fragments, the protective net 3100 can effectively prevent insects and birds from entering the interior of the sound-absorbing panel 20 through the hole 310, and prevent these foreign objects from causing damage to the solid noise reduction layer 4 and the liquid noise reduction layer 5, thereby ensuring the normal operation and sound-absorbing effect of the sound-absorbing panel.

[0050] Preferably, Figure 5 , Figure 6 As shown, the cavity shell 3 also includes a sound collecting cover 36, which is a funnel-shaped structure, and its smaller end is connected to the hole 310. The funnel-shaped sound collecting cover 36 can effectively concentrate the noise to the smaller opening end, that is, the end connected to the hole 310. This design is similar to the "horn effect" in acoustics, which can gather sound signals and improve the efficiency of sound collection.

[0051] Example 2

[0052] The difference from Example 1 is that: preferably, Figure 7 As shown, a plurality of sound guide grooves are arranged on the inner wall of the sound receiving cover 36 along the circumference of its axis, and a sound guide rod 360 is embedded in the sound guide groove, and one end of the sound guide rod 360 near the hole 310 passes through the protective net 3100 and is inserted in the front cavity 311. The sound guide rod 360 provides a specific path for sound conduction, and can guide the sound to be conducted from the sound receiving cover 36 to the hole 310 in a more orderly manner. This structure can reduce the scattering and reflection of the sound during the conduction process and improve the efficiency of sound conduction. One end of the sound guide rod 360 near the hole 310 passes through the protective net and is inserted in the front cavity 311, so that the sound can be more accurately focused on the front cavity 311, which helps to more centrally transmit the collected sound to the internal structure of the muffler panel 20 for processing, thereby improving the sound processing effect of the muffler device on the sound. In addition, the sound guide rod 360 is inserted into the front cavity 311, which can supplement the acoustic structure of the front cavity 311. It can change the sound propagation characteristics in the front cavity, such as adjusting the reflection and refraction of the sound, so that the front cavity can play a more effective role in the whole sound-absorbing panel's sound-absorbing process, and further improve the sound-absorbing performance of the sound-absorbing panel.

[0053] Preferably, the sound guide rod 360 is connected to the protective net 3100 and is an integrated structure, avoiding the use of connecting parts between the two. This direct one-piece molding method reduces the risk of structural instability caused by loosening and falling off of connecting parts. During long-term use, whether it is affected by external vibrations, temperature changes or other factors, the integrated structure can maintain good integrity and ensure the stability of the entire silencer structure. What's more, since the sound guide rod 360 is integrated with the protective net 3100, the sound will not cause additional loss or scattering of sound energy due to the existence of the connection interface during the process of sound transmission from the sound cover 36 to the front cavity 311 through the sound guide rod 360, and the sound can be more coherently transmitted from the sound cover through the sound guide rod 360 to the protective net 3100 structure to the front cavity 311, thereby improving the efficiency of sound transmission. It should be noted that the sound guide rod 360 and the protective net 3100 in this embodiment are both made of brass metal.

[0054] Example 3

[0055] The difference from Example 2 is that: preferably, Figure 8 As shown, a plurality of silencer cavities 3411 are disposed on a side surface of the bag body 341 away from the partition plate 32 , and a sphere 343 is disposed in each silencer cavity 3411 .

[0056] In actual use, when the liquid noise reduction layer 5 absorbs noise, since the liquid water in the bag 34 can fluctuate with the vibration of the sound, it will drive the bag body 341 to vibrate, and the sphere 343 is used to reduce the kinetic energy brought by the vibration, thereby improving the noise reduction effect.

[0057] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. An eco-friendly noise absorbing device for a forest belt, characterized in that: include: The mounting part (1) comprises at least two mounting parts (10), each mounting part (10) being used for being mounted on a tree in a forest belt in a one-to-one correspondence; and a sound-absorbing part (2), at least one group of which is installed between two adjacent mounting parts (10) and forms a sound-absorbing wall with the forest belt for sound absorption; the sound-absorbing part (2) comprises a plurality of sound-absorbing panels (20) spliced ​​in sequence, and each of the sound-absorbing panels (20) comprises: The chamber shell (3) comprises: a shell (31) having a hollow structure inside; a partition plate (32) slidably arranged in the shell (31) through an adjusting member (33), the partition plate (32) dividing the hollow structure into a front chamber (311) and a rear chamber (312), and a hole (310) is provided on the side wall of the front chamber (311); the adjusting member (33) is used to adjust the position of the partition plate (32) so as to adjust the actual effective volume of the front chamber (311) and the rear chamber (312); and a bag (34) is a deformable structure and is placed in the rear chamber (312); A solid noise reduction layer (4) is filled in the front cavity (311), and the solid noise reduction layer (4) is ecological crushed powder; The liquid noise reduction layer (5) is filled in the bladder bag (34), and the liquid noise reduction layer (5) is liquid water.

2. The eco-friendly noise absorbing device for a forest belt as claimed in claim 1, characterized in that: The ecological fragments are any one or more strip-shaped fragments of fallen leaves, weeds, and straw.

3. The eco-friendly noise absorbing device for a forest belt as claimed in claim 1, characterized in that: The liquid water is rainwater.

4. The eco-friendly noise absorbing device for a forest belt as claimed in claim 3, characterized in that: The pouch (34) comprises: The bag body (341) is a deformable structure and has a bag opening (3410); There are two mounting strips (342), which are arranged opposite to each other at the bag opening (3410), one of the mounting strips (342) is fixed on the partition plate (32), and the other mounting strip (342) is fixed on the side wall of the shell (31) located in the rear cavity (312) and opposite to the partition plate (32); a water leakage groove (3120) is arranged on the top of the rear cavity (312).

5. The eco-friendly noise absorbing device for a forest belt as claimed in claim 4, characterized in that: The water leakage trough (3120) is provided with a filter element (3121).

6. The eco-friendly noise absorbing device for a forest belt as claimed in claim 4, characterized in that: The bag body (341) is provided with at least one overflow port; A flow guide pipe (35) is provided on the side wall of the shell (31) located in the rear cavity (312); the water inlet of the flow guide pipe (35) is connected to the overflow port, and the water outlet is located below the rear cavity (312); when two silencer panels (20) are stacked up and down, the water outlet of the flow guide pipe (35) of the upper silencer panel (20) is located directly above the water leakage groove (3120) of the lower silencer panel (20).

7. The eco-friendly noise absorbing device for a forest belt as claimed in claim 1, characterized in that: A protective net (3100) is provided on the hole (310).

8. The eco-friendly noise absorbing device for a forest belt as claimed in claim 7, characterized in that: The cavity shell (3) further comprises a sound receiving cover (36), which is a funnel-shaped structure, and a smaller end of which is connected to the hole (310).

9. The eco-friendly noise absorbing device for a forest belt as claimed in claim 8, characterized in that: A plurality of sound guide grooves are arranged on the inner side wall of the sound receiving cover (36) along the circumference of the axis thereof, and a sound guide rod (360) is embedded in the sound guide groove. One end of the sound guide rod (360) close to the hole (310) passes through the protective net (3100) and is inserted into the front cavity (311).

10. The eco-friendly noise absorbing device for a forest belt as claimed in claim 9, characterized in that: The sound guide rod (360) is connected to the protective net (3100) and forms an integral structure.

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