Emptying silencer

Abstract

The utility model relates to the technical field of air compression, in particular to an emptying silencer. In order to improve the noise reduction effect and the use experience of the emptying silencer, the emptying silencer comprises a speed reduction cylinder and a sound absorption cylinder, the sound absorption cylinder is arranged on the periphery of the speed reduction cylinder in a sleeved mode, and a buffering cavity is arranged between the speed reduction cylinder and the sound absorption cylinder in a clamped mode. An air inlet of the emptying silencer is communicated with an inner cavity of the speed reduction cylinder, and an air outlet of the emptying silencer is communicated with the buffering cavity. According to the emptying silencer, the noise reduction effect and the use experience can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of air compression technology, and in particular to an air venting silencer. Background Technology

[0002] Currently, most common vent mufflers on the market achieve noise reduction by lining the inner wall with sound-absorbing cotton. However, vent mufflers with sound-absorbing cotton lining the inner wall usually only begin to reduce noise after exhausting for a period of time, failing to reduce noise promptly and affecting the user experience. Utility Model Content

[0003] To improve the noise reduction effect and user experience of venting silencers, this utility model proposes a venting silencer comprising a reduction gear cylinder and a sound-absorbing cylinder. The sound-absorbing cylinder is sleeved around the reduction gear cylinder, and a buffer cavity is sandwiched between the reduction gear cylinder and the sound-absorbing cylinder. The air inlet of the venting silencer communicates with the inner cavity of the reduction gear cylinder, and the air outlet of the venting silencer communicates with the buffer cavity. In this venting silencer, the reduction gear cylinder and sound-absorbing cylinder are incorporated. When excess compressed air discharged from the air compressor enters the venting silencer through the air inlet, it is first slowed down by the reduction gear cylinder, then passes through the buffer cavity, and is discharged into the atmosphere through the air outlet. Thus, this venting silencer first uses the reduction gear cylinder to slow down the flow rate of the compressed air, reducing the dynamic noise of the compressed air; then it uses the sound-absorbing cylinder to absorb the noise, simultaneously reducing noise transmission. Therefore, this venting silencer effectively improves noise reduction and user experience.

[0004] Preferably, the deceleration cylinder includes a deceleration inner tube, a deceleration outer cover, and a sealing plate. Ventilation holes are distributed on both the deceleration inner tube and the deceleration outer cover. The deceleration outer cover is fitted around the outer perimeter of the deceleration inner tube, and a deceleration layer is sandwiched between the inner tube and the outer cover. The sealing plate is connected to the inner tube and the outer cover at the sealing end of the deceleration cylinder near the air outlet, and the sealing plate covers the sealing ends of the inner tube and the outer cover. This deceleration cylinder has a simple structure and is easy to manufacture. When compressed air passes through the deceleration cylinder, it first enters the deceleration layer through the vent holes on the inner tube and is decelerated by the deceleration layer. Then, it enters the buffer chamber through the vent holes on the outer cover. This effectively reduces the flow velocity of compressed air when passing through the vent silencer of this invention, thereby reducing the dynamic noise of the compressed air.

[0005] Furthermore, the vent holes on both the inner deceleration tube and the outer deceleration cover are arranged in an array. This array arrangement of vent holes on both the inner and outer deceleration tubes allows compressed air to flow evenly into the deceleration cylinder, decelerate, and then flow evenly into the buffer chamber, further improving the deceleration effect of the deceleration cylinder and thus enhancing the noise reduction effect of the venting silencer of this invention.

[0006] Furthermore, the deceleration layer is formed by filling it with wire mesh. This method of using wire mesh to form the deceleration layer is simple in material selection and easy to assemble, effectively reducing the manufacturing cost of this venting silencer while ensuring deceleration performance.

[0007] Furthermore, an air inlet flange is provided at the inlet of the inner deceleration tube. This air inlet flange at the inlet of the inner deceleration tube facilitates the installation and fixation of the venting silencer of this invention.

[0008] Preferably, the sound-absorbing cylinder includes a sound-absorbing inner tube, a protective outer cover, and a top plate. The sound-absorbing inner tube has sound-absorbing through holes. The protective outer cover is fitted around the sound-absorbing inner tube, and a sound-absorbing layer is sandwiched between the protective outer cover and the sound-absorbing inner tube. The top plate is connected to the sound-absorbing inner tube, and the air outlet is located in the middle of the top plate. This type of sound-absorbing cylinder has a simple structure and is easy to manufacture. After compressed air is decelerated by the reduction cylinder and enters the buffer chamber, the sound-absorbing layer in the sound-absorbing cylinder can absorb the noise generated by the compressed air flow, further improving the noise reduction effect of the venting silencer of this invention.

[0009] Furthermore, the top plate is provided with a plurality of micro-holes arranged in an array as air outlets. In this way, by providing a plurality of micro-holes arranged in an array as air outlets on the top plate, the compressed air discharged by the venting silencer of this invention can be diverted using the micro-holes, further reducing the noise generated when the compressed air is discharged into the atmosphere, thereby further improving the noise reduction effect of the venting silencer of this invention.

[0010] Furthermore, the sound-absorbing layer is formed by filling it with sound-absorbing material. This method of using sound-absorbing material to form the sound-absorbing layer simplifies material selection, facilitates assembly, and effectively reduces the manufacturing cost of the venting silencer of this invention. Attached Figure Description

[0011] Figure 1 This is a partial cross-sectional view of the venting silencer of this utility model. Detailed Implementation

[0012] Below, in conjunction with Figure 1 This utility model provides a detailed description of the venting silencer.

[0013] like Figure 1As shown, the venting silencer of this utility model includes a reduction gear cylinder and a sound-absorbing cylinder. The sound-absorbing cylinder is sleeved around the reduction gear cylinder, and a buffer chamber 3 is sandwiched between the reduction gear cylinder and the sound-absorbing cylinder. The air inlet 101 of the venting silencer is connected to the inner cavity 11 of the reduction gear cylinder, and the air outlet 102 of the venting silencer is connected to the buffer chamber 3. The venting silencer of this utility model includes a reduction gear cylinder and a sound-absorbing cylinder. When excess compressed air discharged from the air compressor enters the venting silencer of this utility model through the air inlet 101, it is first slowed down by the reduction gear cylinder, then passes through the buffer chamber 3, and is discharged into the atmosphere through the air outlet 102. Thus, the venting silencer of this utility model first uses the reduction gear cylinder to slow down the flow rate of the compressed air, reducing the dynamic noise of the compressed air; then it uses the sound-absorbing cylinder to absorb the noise, simultaneously reducing noise transmission. Therefore, the venting silencer of this utility model uses the reduction gear cylinder and the sound-absorbing cylinder in combination to achieve dual noise reduction, which can improve the noise reduction effect and quickly achieve noise reduction, improving the user experience.

[0014] like Figure 1 As shown, the reduction cylinder includes an inner reduction tube 12, an outer reduction cover 13, and a sealing plate 14. Vent holes 15 are distributed on both the inner reduction tube 12 and the outer reduction cover 13. The outer reduction cover 13 is fitted around the inner reduction tube 12, and a reduction layer (not shown in the figure) is sandwiched between the inner reduction tube 12 and the outer reduction cover 13. The sealing plate 14 is connected to the inner reduction tube 12 and the outer reduction cover 13 at the sealing end of the reduction cylinder near the air outlet 102, and the sealing plate 14 covers the sealing ends of the inner reduction tube 12 and the outer reduction cover 13. This reduction cylinder has a simple structure and is easy to manufacture. When compressed air passes through the reduction cylinder, it first enters the reduction layer through the vent holes 15 on the inner reduction tube and is slowed down by the reduction layer. Then, it enters the buffer chamber 3 through the vent holes 15 on the outer reduction cover 13. This effectively reduces the flow velocity of compressed air when passing through the vent silencer of this invention, thereby reducing the dynamic noise of the compressed air. Preferably, the vent holes 15 on both the inner deceleration tube 12 and the outer deceleration cover 13 are arranged in an array. This array arrangement of the vent holes 15 on both the inner deceleration tube 12 and the outer deceleration cover 13 allows compressed air to flow evenly into the deceleration cylinder for deceleration before flowing evenly into the buffer chamber 3, further improving the deceleration effect of the deceleration cylinder and thus enhancing the noise reduction effect of the venting silencer of this invention. Preferably, the deceleration layer is formed by filling with wire mesh. Using wire mesh, such as stainless steel wire mesh, to form the deceleration layer is simple in material selection and easy to assemble, effectively reducing the manufacturing cost of the venting silencer of this invention while ensuring the deceleration effect. Preferably, an air inlet flange 16 is provided at the inlet of the inner deceleration tube 12. This air inlet flange 16 at the inlet of the inner deceleration tube 12 facilitates the installation and fixing of the venting silencer of this invention.

[0015] like Figure 1As shown, the sound-absorbing cylinder includes an inner sound-absorbing tube 21, a protective outer cover 22, and a top plate 23. The inner sound-absorbing tube 21 has sound-absorbing through holes 211. The protective outer cover 22 is fitted around the inner sound-absorbing tube 21, and a sound-absorbing layer (not shown in the figure) is sandwiched between the protective outer cover 22 and the inner sound-absorbing tube 21. The top plate 23 is connected to the inner sound-absorbing tube 21, and the air outlet 102 is located in the middle of the top plate 23. This sound-absorbing cylinder has a simple structure and is easy to manufacture. After compressed air is decelerated by the reduction cylinder and enters the buffer chamber 3, the sound-absorbing layer in the sound-absorbing cylinder can absorb the noise generated by the compressed air flow, further improving the noise reduction effect of the venting silencer of this utility model. Preferably, the top plate 23 has multiple micro-holes arranged in an array as air outlets 102. Thus, by providing multiple arrayed micro-holes as air outlets 102 on the top plate 23, the compressed air discharged from the venting silencer can be diverted using these micro-holes, further reducing the noise generated when the compressed air is discharged into the atmosphere, thereby further improving the noise reduction effect of the venting silencer. Preferably, the sound-absorbing layer is formed by filling it with sound-absorbing material. Using sound-absorbing material such as sound-insulating cotton to form the sound-absorbing layer is simple in material selection and easy to assemble, effectively reducing the manufacturing cost of the venting silencer.

Claims

1. A vent silencer, characterized by The venting silencer includes a reduction gear cylinder and a sound-absorbing cylinder. The sound-absorbing cylinder is sleeved around the reduction gear cylinder, and a buffer cavity is sandwiched between the reduction gear cylinder and the sound-absorbing cylinder. The air inlet of the venting silencer is connected to the inner cavity of the reduction gear cylinder, and the air outlet of the venting silencer is connected to the buffer cavity.

2. The vent silencer according to claim 1, characterized in that The deceleration cylinder includes a deceleration inner tube, a deceleration outer cover, and a sealing plate. Ventilation holes are distributed on both the deceleration inner tube and the deceleration outer cover. The deceleration outer cover is fitted around the deceleration inner tube, and a deceleration layer is sandwiched between the deceleration inner tube and the deceleration outer cover. The sealing plate is connected to the deceleration inner tube and the deceleration outer cover at the sealing end of the deceleration cylinder near the air outlet, and the sealing plate covers the sealing end of the deceleration inner tube and the deceleration outer cover.

3. The vent silencer according to claim 2, characterized in that The vents on both the inner deceleration tube and the outer deceleration cover are arranged in an array.

4. The vent silencer according to claim 2, wherein The deceleration layer is formed by filling it with wire mesh.

5. The vent silencer according to claim 2, wherein An air inlet flange is provided at the inlet of the inner tube of the deceleration system.

6. The vent silencer according to any one of claims 1-5, characterized in that, The sound-absorbing cylinder includes a sound-absorbing inner tube, a protective outer cover, and a top plate. The sound-absorbing inner tube is provided with sound-absorbing through holes. The protective outer cover is fitted around the sound-absorbing inner tube, and a sound-absorbing layer is sandwiched between the protective outer cover and the sound-absorbing inner tube. The top plate is connected to the sound-absorbing inner tube, and the air outlet is located in the middle of the top plate.

7. The vent silencer according to claim 6, characterized in that The top plate is provided with a plurality of micropores arranged in an array as air outlets.

8. The vent silencer according to claim 6, wherein The sound-absorbing layer is formed by filling it with sound-absorbing material.

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