A one-way valve silencer based on high-pressure deformation umbrella valve structure

Abstract

This utility model belongs to the field of silencer technology, and particularly relates to a one-way valve silencer based on a high-pressure deformation umbrella valve structure. It includes: a housing, the housing having an axially distributed air chamber one and an air chamber two surrounding the outside of air chamber one; both air chamber one and air chamber two have a closed end and an open end, and the opening ends of air chamber one and air chamber two are in opposite directions; sound-absorbing cotton; an end cap covering the closed end of air chamber one and the open end of air chamber two; and an umbrella valve. This one-way valve silencer based on a high-pressure deformation umbrella valve structure uses an umbrella valve to achieve unidirectional gas flow, optimizes the cavity structure, separates the air intake and exhaust paths, and opens a smaller-diameter air intake hole one and a larger-diameter air outlet hole one at the end cap to separately control the air intake and exhaust flow rates, avoiding turbulent noise; the exhaust gas can be directly discharged into the air without passing through the silencer structure, reducing gas back pressure and improving exhaust efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of silencer technology, and in particular relates to a one-way valve silencer based on a high-pressure deformation umbrella valve structure. Background Technology

[0002] A muffler (also known as a silencer or vibration damping muffler) is a device installed at the exhaust system or noise source outlet. Its core function is to reduce or control the noise energy in the airflow (or sound waves) through acoustic principles, while minimizing the impact on system performance (such as exhaust back pressure and power loss).

[0003] Currently, the silencers used in air compressors share a single chamber and air inlet for both intake and exhaust. This approach has the following technical disadvantages:

[0004] 1. High NVH: Friction between airflow and the internal structure of the muffler generates turbulent noise, resulting in high NVH during intake and exhaust.

[0005] 2. Low exhaust efficiency: During exhaust, the gas passes through a muffler structure, resulting in high back pressure and poor gas discharge, thus reducing exhaust efficiency.

[0006] To address the aforementioned issues, a one-way valve silencer based on a high-pressure deformation umbrella valve structure was designed. Utility Model Content

[0007] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0008] A one-way valve silencer based on a high-pressure deformation umbrella valve structure includes:

[0009] The housing has an axially distributed air chamber 1 and an air chamber 2 surrounding the outside of the air chamber 1. Both the air chamber 1 and the air chamber 2 have a closed end and an open end, and the open ends of the air chamber 1 and the air chamber 2 are in opposite directions. The housing also has an air inlet 2 connecting the air chamber 1 and the air chamber 2, and an air outlet 2 penetrating the closed end of the air chamber 1.

[0010] The sound-absorbing cotton is assembled in the second air chamber and covers the second air inlet.

[0011] An end cap covers the closed end of air chamber one and the open end of air chamber two. The end of the end cap extends axially to form a partition that contacts the closed end of air chamber one. There is a gap A between the end cap, the partition and the shell. The end cap is provided with an axially penetrating air inlet hole one and an air outlet hole one. The air inlet hole one corresponds to the open end of air chamber two and the air outlet hole one corresponds to the closed end of air chamber one. The air inlet hole one, air chamber two, air inlet hole two and air chamber one form an air inlet path. The air chamber one, air outlet hole two and air outlet hole one form an air outlet path.

[0012] An umbrella valve is located in gap A and one end is fixed to the housing. The umbrella valve has an umbrella part that protrudes in the middle. When the muffler is in the air intake state, the umbrella part covers the second air outlet. When it is in the air outlet state, the umbrella part is blown open to expose the second air outlet.

[0013] As a preferred embodiment of the above technical solution, the umbrella valve has a positioning post that is assembled with a closed end of the air chamber;

[0014] The positioning post extends through the closed end of the air chamber and into the interior of the air chamber, and is connected to a positioning ball.

[0015] As a preferred embodiment of the above technical solution, the connection between the positioning post and the umbrella part is provided with an arc-shaped segment protruding towards the umbrella part.

[0016] As a preferred embodiment of the above technical solution, the extended end of the partition plate contacts the sound-absorbing cotton.

[0017] As a preferred embodiment of the above technical solution, the partition plate is provided with a stepped groove, which matches the closed end of the air chamber.

[0018] As a preferred embodiment of the above technical solution, the air inlet is located at the position of the partition.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. The one-way valve silencer based on the high-pressure deformation umbrella valve structure in this technical solution consists of a shell, sound-absorbing cotton, end cap and umbrella valve. Compared with conventional silencers, it has lower NVH during intake and exhaust and faster exhaust efficiency.

[0021] 2. The one-way valve silencer based on the high-pressure deformation umbrella valve structure in this technical solution uses an umbrella valve to achieve the function of unidirectional gas flow, optimizes the cavity structure, separates the air intake and exhaust paths, and opens a small-diameter air intake hole and a large-diameter air outlet hole at the end cap to control the air intake and exhaust flow rates separately, avoiding the generation of turbulent noise; the exhaust gas can be directly discharged into the air without passing through the silencer structure, reducing the gas back pressure and improving the exhaust efficiency. Attached Figure Description

[0022] Figure 1 The diagram shown is a three-dimensional structural schematic of a one-way valve silencer based on a high-pressure deformation umbrella valve structure in Embodiment 1;

[0023] Figure 2 The diagram shown is a schematic diagram of the internal structure of a one-way valve silencer based on a high-pressure deformation umbrella valve structure in Embodiment 1;

[0024] Figure 3 The diagram shown is a schematic diagram of the air intake state of a one-way valve silencer based on a high-pressure deformation umbrella valve structure in Embodiment 1.

[0025] Figure 4 The diagram shown is a schematic diagram of the exhaust state of a one-way valve silencer based on a high-pressure deformation umbrella valve structure in Embodiment 1.

[0026] Reference numerals: 10 for housing; 11 for air chamber one; 12 for air chamber two; 13 for air inlet two; 14 for air outlet two; 20 for sound-absorbing cotton; 30 for end cap; 31 for partition plate; 311 for stepped groove; 32 for air inlet one; 33 for air outlet one; 40 for umbrella valve; 41 for umbrella part; 42 for positioning post; 43 for positioning ball; 44 for arc-shaped section. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0028] Example 1

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a one-way valve silencer based on a high-pressure deformation umbrella valve structure includes:

[0030] The housing 10 has an axially distributed air chamber 11 and an air chamber 2 12 surrounding the outside of the air chamber 11. Both the air chamber 11 and the air chamber 2 12 have a closed end and an open end, and the open ends of the air chamber 11 and the air chamber 2 12 are in opposite directions. The housing 10 also has an air inlet 2 13 connecting the air chamber 11 and the air chamber 2 12, and an air outlet 2 14 penetrating the closed end of the air chamber 11.

[0031] 20 sound-absorbing cotton is installed in air chamber 2 12 and covers air inlet 2 13;

[0032] An end cap 30 covers the closed end of air chamber 11 and the open end of air chamber 2 12. The end of the end cap 30 extends axially to form a partition 31 that contacts the closed end of air chamber 11. There is a gap A between the end cap 30, the partition 31 and the housing 10. An axially penetrating air inlet 32 ​​and an air outlet 33 are provided on the end cap 30. In this embodiment, the diameter of the air outlet 33 is larger than the diameter of the air inlet 32. The air inlet 32 ​​corresponds to the open end of air chamber 2 12, and the air outlet 33 corresponds to the closed end of air chamber 11. The air inlet 32, air chamber 2 12, air inlet 2 13 and air chamber 11 form an air intake path, and air chamber 11, air outlet 2 14 and air outlet 33 form an air outlet path.

[0033] The umbrella valve 40 is made of rubber in this embodiment. The umbrella valve 40 is located in the gap A and one end is fixed to the housing 10. The umbrella valve 40 has an umbrella part 41 protruding in the middle. When the muffler is in the air intake state, the umbrella part 41 covers the second air outlet 14. When it is in the air outlet state, the umbrella part 41 is blown open to expose the second air outlet 14.

[0034] This technical solution includes a one-way valve silencer based on a high-pressure deformation umbrella valve structure, such as... Figure 3 As shown, air inlet 32, air chamber 12, air inlet 13, and air chamber 11 form the air intake path. During air intake, the air first enters air chamber 12 through air inlet 32 ​​on end cover 30, undergoes noise reduction treatment by sound-absorbing cotton 20, and then passes through air inlet 13 on housing 10 to air chamber 11, entering the pipeline connecting to the compressor; as Figure 4 As shown, air chamber 11, air outlet 2 14 and air outlet 33 form an air outlet path. When the muffler is in the air intake state, the umbrella part 41 covers the air outlet 2 14, and the air outlet path is closed. When it is in the air outlet state, the umbrella part 41 is blown open to expose the air outlet 2 14, and the air outlet path is opened. When exhausting, the high-pressure gas blows open the umbrella part 41 through the air outlet 2 14 and then is discharged into the air through the air outlet 33.

[0035] This technical solution presents a one-way valve silencer based on a high-pressure deformation umbrella valve structure, consisting of a housing 10, sound-absorbing cotton 20, an end cap 30, and an umbrella valve 40. Compared to conventional silencers, it exhibits lower NVH during intake and exhaust, and faster exhaust efficiency. The umbrella valve 40 enables unidirectional gas flow, optimizes the cavity structure, separates the intake and exhaust paths, and provides a smaller intake port 32 and a larger exhaust port 33 at the end cap 30 to separately control the intake and exhaust flow rates, avoiding turbulent noise. During exhaust, the gas can be directly discharged into the air without passing through the silencer structure, reducing gas back pressure and improving exhaust efficiency.

[0036] To achieve the configuration where the umbrella valve 40 is located in the gap A between the end cap 30, the partition 31, and the housing 10, and one end is fixed to the housing 10, the umbrella valve 40 is further optimized as follows: Figure 2 As shown, the umbrella valve 40 has a positioning post 42 that is assembled with the closed end of the air chamber 11; the positioning post 42 extends through the closed end of the air chamber 11 into the interior of the air chamber 11 and is connected to a positioning ball 43. In this embodiment, the positioning post 42 of the umbrella valve 40 extends through the closed end of the air chamber 11 and is limited by the positioning ball 43, thus achieving a stable assembly of the umbrella valve 40 with the housing 10 in the gap A.

[0037] When the muffler is in the intake state, the umbrella part 41 covers the second air outlet 14; when it is in the exhaust state, the umbrella part 41 is blown open, exposing the second air outlet 14. This means the umbrella part 41 needs to repeatedly fold and unfold. To ensure the umbrella part 41 can smoothly fold during exhaust and smoothly unfold during intake, as follows... Figure 2 As shown, an arc-shaped segment 44 protruding towards the umbrella part 41 is provided at the connection between the positioning post 42 and the umbrella part 41.

[0038] Further optimizations are made to the one-way valve silencer based on a high-pressure deformation umbrella valve structure in this technical solution, such as... Figure 2 As shown, the extended end of the partition 31 abuts against the sound-absorbing cotton 20, limiting the sound-absorbing cotton 20 at position 30 inside the housing 10; as Figure 2 As shown, a stepped groove 311 is provided on the partition plate 31. The stepped groove 311 matches the closed end of the air chamber 11, limiting the relative position of the housing 10 and the end cover 30, improving the stability of the muffler assembly and ensuring the quality of the muffler.

[0039] To further optimize the noise reduction effect of a one-way valve silencer based on a high-pressure deformation umbrella valve structure in this technical solution, such as... Figure 2 As shown, the air inlet 32 ​​is located at the position of the partition 31, so that the gas entering through the air inlet 32 ​​directly contacts the sound-absorbing cotton 20 for sound absorption, shortens the transmission path of the gas exposed in the air chamber 12, and reduces the generation of noise.

[0040] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A check valve silencer based on high pressure deformation umbrella valve structure, characterized by, include: The housing has an axially distributed air chamber 1 and an air chamber 2 surrounding the outside of the air chamber 1. Both the air chamber 1 and the air chamber 2 have a closed end and an open end, and the open ends of the air chamber 1 and the air chamber 2 are in opposite directions. The housing also has an air inlet 2 connecting the air chamber 1 and the air chamber 2, and an air outlet 2 penetrating the closed end of the air chamber 1. The sound-absorbing cotton is assembled in the second air chamber and covers the second air inlet. An end cap covers the closed end of air chamber one and the open end of air chamber two. The end of the end cap extends axially to form a partition that contacts the closed end of air chamber one. There is a gap A between the end cap, the partition and the shell. The end cap is provided with an axially penetrating air inlet hole one and an air outlet hole one. The air inlet hole one corresponds to the open end of air chamber two and the air outlet hole one corresponds to the closed end of air chamber one. The air inlet hole one, air chamber two, air inlet hole two and air chamber one form an air inlet path. The air chamber one, air outlet hole two and air outlet hole one form an air outlet path. An umbrella valve is located in gap A and one end is fixed to the housing. The umbrella valve has an umbrella part that protrudes in the middle. When the muffler is in the air intake state, the umbrella part covers the second air outlet. When it is in the air outlet state, the umbrella part is blown open to expose the second air outlet.

2. The one-way valve silencer based on a high-pressure deformation umbrella valve structure according to claim 1, characterized in that, The umbrella valve has a positioning post that is fitted to a closed end of the air chamber; The positioning post extends through the closed end of the air chamber and into the interior of the air chamber, and is connected to a positioning ball.

3. A one-way valve silencer based on a high-pressure deformation umbrella valve structure according to claim 1, characterized in that, The connection between the positioning post and the umbrella part is provided with an arc-shaped section protruding towards the umbrella part.

4. A one-way valve silencer based on a high-pressure deformation umbrella valve structure according to claim 1, characterized in that, The extended end of the partition comes into contact with the sound-absorbing cotton.

5. A one-way valve silencer based on a high-pressure deformation umbrella valve structure according to claim 1, characterized in that, The partition plate is provided with a stepped groove, which matches the closed end of the air chamber.

6. A one-way valve silencer based on a high-pressure deformation umbrella valve structure according to claim 4, characterized in that, The air inlet is located at the position of the partition.

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