Self-closing waterproof silencer

Abstract

The self-closed waterproof silencer comprises a frame base body, the frame base body comprises a base platform and a plurality of supporting columns connected to the base platform, an airflow channel is formed between every two adjacent supporting columns, the supporting columns are wrapped with a silencing barrier assembly, the frame base body is connected with an exhaust port, and a sealing and closing structure is arranged in the frame base body. The sealing and closing structure comprises a sealing element and a pressure response element, and the sealing element and the pressure response element are arranged in the silencer, so that the exhaust port is tightly closed when no exhaust requirement exists, external moisture and moisture are effectively prevented from invading, the dry state of the exhaust port is kept, and the service life of the silencer is prolonged. The risk that internal elements are damaged due to water erosion is avoided, stable operation of the whole system is ensured, and the service life of equipment is prolonged. In the exhaust state, the pressure of airflow can directly act on the sealing element, so that the pressure response element displaces, it is ensured that the airflow smoothly passes through the airflow channel and flows to the noise reduction barrier assembly for noise reduction treatment, and automatic opening in the exhaust state and automatic closing after exhaust are completed are achieved.

Description

Technical Field

[0001] The present application belongs to the field of valve silencers, and in particular relates to a self-closing waterproof silencer. Background Art

[0002] Silencers installed on valve exhaust ports, often referred to as safety valve silencers or exhaust silencers, play a crucial role in industrial environments, particularly in systems such as boiler operation and steam exhaust. Their primary mission is to significantly reduce the high-decibel noise generated by valve operation, maintaining a pleasant working environment and preventing noise pollution from adversely affecting employee health and productivity. Their design delicately balances the requirements of noise suppression with smooth airflow, ensuring both improved system performance and enhanced work environment quality.

[0003] However, despite their excellent noise reduction performance, traditional silencers often face limitations in the face of demanding and variable outdoor conditions, such as persistent rainfall or unexpected flooding. Under such adverse conditions, the exhaust port easily becomes a channel for moisture intrusion. Prolonged moisture penetration inevitably corrodes internal components, ultimately threatening the stable operation and lifespan of the entire system. Therefore, exploring and implementing silencer solutions with advanced waterproofing technology is particularly urgent for outdoor applications or environments prone to moisture. Utility Model Content

[0004] The utility model provides a self-closing waterproof muffler to solve the problem of water ingress when the muffler is used outdoors or in a damp environment.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A self-closing waterproof silencer includes a frame base, the frame base including a base platform and a plurality of pillars connected to the base platform, an air flow channel formed between adjacent pillars, a sound barrier assembly wrapped around the outside of the pillars, the frame base connected to an exhaust port, and a sealed closed structure provided within the frame base, the sealed closed structure including a sealing element and a pressure response element;

[0007] In the non-exhaust state, the sealing element tightly and firmly closes the exhaust port under the action of the pressure of the pressure response unit; in the exhaust state, the pressure of the airflow directly acts on the sealing element and causes the pressure response unit to displace, thereby allowing the airflow to pass through the airflow channel and flow to the sound insulation barrier component area for silencing; after the exhaust is completed, the pressure response element displaces in the opposite direction to drive the sealing element to reseal the exhaust port to achieve self-closing and waterproofing.

[0008] The self-closing waterproof silencer of the present application, by setting a sealing element and a pressure response element in the silencer, the exhaust port is tightly closed when there is no exhaust demand, effectively preventing the intrusion of external moisture and humidity, keeping the exhaust port dry, avoiding the risk of damage to internal components due to moisture erosion, ensuring the stable operation of the entire system and extending the life of the equipment. In the exhaust state, the pressure of the airflow can directly act on the sealing element, causing the pressure response element to displace, ensuring that the airflow passes smoothly through the airflow channel and flows to the soundproofing barrier component for silencing treatment, realizing automatic opening in the exhaust state and automatic closing after the exhaust is completed, which not only ensures the system efficiency but also maintains the quality of the working environment, and realizes automatic opening in the exhaust state and automatic closing after the exhaust is completed.

[0009] In a preferred implementation, the sealing element is a sealing gasket, which includes a central portion and a plurality of edge portions, wherein the edge portions are located in the air flow channel and contact pillars on both sides of the air flow channel.

[0010] In a preferred implementation, a silencer column is provided in the central portion, the interior of the silencer column is hollow and the wall of the silencer column contains a number of pores. The airflow first enters the interior of the silencer column and initially reduces the noise when passing through the pores. The airflow pushes the central portion and flows out of the silencer column, and then passes through the outermost layer of the silencer barrier assembly for secondary silencing, thereby achieving multi-stage noise reduction.

[0011] The interior of the silencer column is hollow, and its walls contain several pores. This allows airflow to initially enter its interior space when passing through the column. As airflow passes through the pores, the damping and diffusion effects of the pores initially attenuate high-frequency noise components. This initial noise reduction helps reduce the burden on subsequent noise barrier components. As the airflow exits the column through the pores, its speed and direction are adjusted, allowing it to flow more evenly toward the outermost noise barrier components. This evenly distributed airflow helps improve the noise reduction efficiency of the noise barrier components.

[0012] In a preferred implementation, the pressure response element is a spring, one end of the spring is connected to the base platform, and the other end of the spring is connected to the sealing element.

[0013] In a preferred implementation, the frame base is made of plastic material.

[0014] In a preferred implementation, the pillar is provided with a rubber gasket, and the sound absorption barrier assembly is in contact with the rubber gasket.

[0015] In a preferred implementation, the pillar includes a first inclined section and a second inclined section. After the sound barrier assembly is wrapped around the outside of the pillar, an inner cavity is formed inside the frame base that first gradually expands and then gradually shrinks.

[0016] As sound waves propagate through the gradually expanding and then shrinking inner cavity, they are constantly reflected and diffused. Some of the energy is absorbed by the sound-absorbing material of the sound barrier components or converted into other forms of energy, such as heat. This increases the opportunity for energy dissipation and helps reduce the intensity and frequency of noise.

[0017] In a preferred implementation, the sound-absorbing barrier assembly includes two layers of inner and outer metal meshes, with filler provided between the two layers of metal meshes.

[0018] In a preferred implementation, a screw base is integrated at one end of the frame base to connect with the exhaust port. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic structural diagram of a self-closing waterproof muffler according to the present invention is shown;

[0021] Figure 2 A schematic diagram of the internal structure of a self-closing waterproof muffler of the present application in an illustrative embodiment in a non-exhaust state is depicted;

[0022] Figure 3 A schematic diagram of the internal structure of a schematic embodiment of the self-closing waterproof muffler of the present application in the exhaust state is depicted;

[0023] Figure 4 A schematic diagram of a three-dimensional structure of a schematic embodiment of the frame matrix of the present application is depicted;

[0024] Figure 5 A schematic structural diagram of a schematic embodiment of the sealing gasket of the present application is depicted;

[0025] Figure 6 A schematic structural diagram of an exemplary embodiment of the self-closing waterproof silencer of the present application in which a silencer column is provided is depicted;

[0026] Figure 7 A schematic structural diagram of another exemplary embodiment of the self-closing waterproof muffler of the present application in which a muffler column is provided;

[0027] Description of labels:

[0028] 1-frame base; 10-base platform; 11-pillar; 110-first inclined section; 111-second inclined section; 12-air flow channel; 2-soundproof barrier assembly; 20-metal mesh; 21-filler; 3-sealed closure structure; 30-sealing gasket; 300-center part; 301-edge part; 31-pressure response element; 4-screw base; 5-soundproof column. DETAILED DESCRIPTION

[0029] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0030] In the description of the present invention, it should be understood that the terms "center," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "axial," "radial," "circumferential," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the present invention, unless otherwise expressly specified or limited, a first feature being "up" or "down" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.

[0031] In this utility model, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integration; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or an interaction between two components. However, the phrase "direct connection" indicates that the two connected entities are not connected through an intermediate structure, but are connected to form a whole through a connecting structure. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0032] In this utility model, terms such as "first," "second," etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0033] The present invention will be described below with reference to the accompanying drawings.

[0034] The specific plans adopted are:

[0035] like Figure 1-7 As shown, the utility model provides a self-closing waterproof silencer, including a frame base 1, the frame base includes a base platform 10 and a plurality of pillars 11 connected to the base platform, an air flow channel 12 is formed between adjacent pillars, a sound barrier assembly 2 is wrapped around the outside of the pillars, the frame base is connected to the exhaust port, and a sealing closed structure 3 is provided in the frame base, the sealing closed structure includes a sealing element and a pressure response element 31;

[0036] In the non-exhaust state, the sealing element tightly and firmly closes the exhaust port under the action of the pressure of the pressure response unit; in the exhaust state, the pressure of the airflow directly acts on the sealing element and causes the pressure response unit to displace, thereby allowing the airflow to pass through the airflow channel and flow to the sound insulation barrier component area for silencing; after the exhaust is completed, the pressure response element displaces in the opposite direction to drive the sealing element to reseal the exhaust port to achieve self-closing and waterproofing.

[0037] The above structure, by providing a sealing element and a pressure-responsive element within the muffler, achieves automatic opening in the exhaust state and automatic closing after exhaust is complete. This ensures that the exhaust port is tightly sealed when there is no exhaust demand, effectively preventing the intrusion of external moisture and humidity, keeping the exhaust port dry, and avoiding the risk of damage to internal components due to moisture erosion, thereby ensuring the stable operation of the entire system and extending the life of the equipment. In the exhaust state, the pressure of the airflow can directly act on the sealing element, causing the pressure-responsive element to displace, ensuring that the airflow smoothly passes through the airflow channel and flows to the soundproofing barrier assembly for silencing treatment, thus ensuring both system efficiency and maintaining the quality of the working environment.

[0038] As a preferred embodiment of the present application, the sealing element is a sealing gasket 30, and the pressure-responsive element is a spring. One end of the spring is connected to the base platform, and the other end is connected to the sealing element. The sealing gasket includes a central portion 300 and multiple edge portions 301. The edge portions are located within the airflow channel and contact the pillars on both sides of the airflow channel. The central portion of the sealing gasket directly covers the opening of the exhaust port, and the edge portions are located within the airflow channel and closely contact the pillars on both sides of the airflow channel. This design ensures that the sealing gasket remains stable even under high airflow pressure or vibration conditions, preventing airflow leakage and moisture intrusion.

[0039] As a preferred embodiment of the present application, a silencer column 5 is provided in the center. The interior of the silencer column is hollow and the wall of the silencer column contains a number of pores. The airflow first enters the interior of the silencer column and initially reduces the noise when passing through the pores. The airflow pushes the center and flows out of the silencer column, and then passes through the outermost layer of the sound barrier assembly for secondary silencing, thereby achieving multi-stage noise reduction. The interior of the silencer column is hollow and the wall surface contains a number of pores, so that when the airflow passes through the silencer column, it will first enter its internal space. In the process of the airflow passing through the pores, the high-frequency noise components will be initially attenuated due to the damping and diffusion effects of the pores. The initial noise reduction helps to reduce the burden on the subsequent sound barrier assembly. When the airflow flows out of the silencer column through the pores, its speed and direction will be adjusted so that the airflow flows more evenly to the outermost layer of the sound barrier assembly. This evenly distributed airflow helps to improve the sound reduction efficiency of the sound barrier assembly.

[0040] The multi-stage noise reduction mechanism achieves more effective noise reduction by dividing the noise reduction process into two stages: primary noise reduction and secondary noise reduction. The primary stage reduces high-frequency noise components, while the secondary stage further processes the remaining low-frequency noise, achieving a more comprehensive noise reduction effect.

[0041] As a preferred embodiment of the present application, the frame base 1 is made of plastic material.

[0042] Plastics offer excellent corrosion resistance, resisting erosion by corrosive media like acids, alkalis, and salt spray. Compared to metal, plastics are less expensive, helping to reduce muffler manufacturing costs. Plastics are also easy to process and form, allowing for complex shapes to be created through processes like injection molding and blow molding to meet design requirements.

[0043] As a preferred embodiment of the present application, the pillars are provided with rubber gaskets, and the sound barrier assembly is in contact with the rubber gaskets. The pillars are provided with rubber gaskets, and the sound barrier assembly is in contact with the rubber gaskets. During the operation of the muffler, vibrations and impacts are generated. The rubber gaskets, as elastic elements, can absorb and disperse these vibration energy, thereby improving the stability and service life of the muffler.

[0044] As a preferred embodiment of the present application, the pillar includes a first inclined section 110 and a second inclined section 111. After the sound barrier assembly is wrapped around the outside of the pillar, an inner cavity is formed inside the frame matrix that first gradually expands and then gradually shrinks. When the airflow enters the silencer, it encounters the inclined pillars and the sound barrier assembly. These obstacles will cause the sound waves to reflect. In the first inclined section, as the inner cavity gradually expands, the sound waves will continue to be reflected and diffused during the propagation process, forming multiple sound wave paths; during the propagation of the sound waves, part of the energy will be absorbed by the sound-absorbing material of the sound barrier assembly or converted into other forms of energy such as heat energy. In the second inclined section where the inner cavity gradually shrinks, the propagation path of the sound wave changes further, and several reflections occur, thereby increasing the chance of energy dissipation. This energy dissipation helps to reduce the intensity and frequency of the noise.

[0045] As a preferred embodiment of the present application, the sound-absorbing barrier assembly includes two layers of inner and outer metal mesh 20, with a filler 21 disposed between the two layers of metal mesh.

[0046] The inner and outer metal mesh layers primarily provide support and protection. The filler, a core component of the sound barrier, is made from porous, sound-absorbing materials such as fiberglass and polyester. When sound waves pass through the filler, the porosity and flow resistance of the material partially absorb the energy and convert it into heat, achieving the desired sound absorption effect.

[0047] As a preferred embodiment of the present application, a screw base 4 is integrated at one end of the frame base to connect with the exhaust port.

[0048] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0049] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and such variations or substitutions are intended to fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A self-closing waterproof muffler, characterized in that: The frame base includes a base platform and a plurality of pillars connected to the base platform, an air flow channel is formed between adjacent pillars, the sound barrier assembly is wrapped around the outside of the pillars, the frame base is connected to the exhaust port, and a sealing closed structure is provided in the frame base, the sealing closed structure includes a sealing element and a pressure response element; In the non-exhaust state, the sealing element tightly and firmly closes the exhaust port under the pressure of the pressure response unit; In the exhaust state, the pressure of the airflow directly acts on the sealing element and causes the pressure response unit to displace, allowing the airflow to pass through the airflow channel and flow to the sound barrier component area for silencing; after the exhaust is completed, the pressure response element displaces in the opposite direction to drive the sealing element to reseal the exhaust port to achieve self-closing and waterproofing.

2. The self-closing waterproof muffler according to claim 1, characterized in that: The sealing element is a sealing gasket, which includes a central portion and a plurality of edge portions. The edge portions are located in the air flow channel and contact the pillars on both sides of the air flow channel.

3. The self-closing waterproof muffler according to claim 2, characterized in that: A silencer column is provided in the central part. The interior of the silencer column is hollow and the wall of the silencer column contains a number of pores. The airflow first enters the interior of the silencer column and initially reduces the noise when passing through the pores. The airflow pushes the central part and flows out of the silencer column, and then passes through the outermost layer of the silencer barrier component for secondary silencing, thereby achieving multi-stage noise reduction.

4. The self-closing waterproof muffler according to claim 1, characterized in that: The pressure response element is a spring, one end of the spring is connected to the base platform, and the other end is connected to the sealing element.

5. The self-closing waterproof muffler according to claim 1, characterized in that: The frame base is made of plastic material.

6. The self-closing waterproof muffler according to claim 1, characterized in that: The pillar is provided with a rubber gasket, and the sound insulation barrier assembly is in contact with the rubber gasket.

7. The self-closing waterproof muffler according to claim 1, characterized in that: The pillar includes a first inclined section and a second inclined section. After the sound insulation barrier assembly is wrapped around the outside of the pillar, an inner cavity is formed inside the frame base that first gradually expands and then gradually shrinks.

8. The self-closing waterproof muffler according to claim 1, characterized in that: The noise-absorbing barrier assembly includes two layers of inner and outer metal meshes, with filler arranged between the two layers of metal meshes.

9. The self-closing waterproof muffler according to claim 1, characterized in that: An integrated screw base is provided at one end of the frame base for connection with the exhaust port.

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