CN210372507U - Exhaust noise reduction device and wearable equipment - Google Patents
Exhaust noise reduction device and wearable equipment Download PDFInfo
- Publication number
- CN210372507U CN210372507U CN201920987256.4U CN201920987256U CN210372507U CN 210372507 U CN210372507 U CN 210372507U CN 201920987256 U CN201920987256 U CN 201920987256U CN 210372507 U CN210372507 U CN 210372507U
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- China
- Prior art keywords
- air
- exhaust
- silencing
- pipe
- noise reduction
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Silencers (AREA)
Abstract
The application discloses an exhaust noise reduction device and wearing equipment, which can be connected with an air charging and discharging device and comprises a silencing material body and at least two silencing cavities, wherein the silencing cavities are filled with the silencing material body; in the airflow direction, the silencing cavities are connected through a flow guide pipe, the most upstream silencing cavity is provided with an air inlet pipe capable of being connected with the air charging and discharging device, and the most downstream silencing cavity is provided with an air outlet pipe capable of discharging airflow; the air inlet pipe is provided with a first pipe section which is positioned in the most upstream sound-deadening cavity, and a plurality of sound-deadening holes are formed in the peripheral wall of the first pipe section in a penetrating mode. The peak frequency of exhaust noise can be improved by arranging the silencing holes, and the higher the frequency is, the shorter the wavelength is, and the noise with the shorter wavelength is easier to be subjected to silencing and noise reduction treatment; through setting up a plurality of amortization chambeies, when making the air current pass through the amortization chamber at different levels, by the amortization material body amortization noise reduction to can effectively reduce the exhaust sound.
Description
Technical Field
The utility model belongs to the technical field of the device of making an uproar falls and specifically relates to a device of making an uproar falls in exhaust that can use with the cooperation of filling and discharging device.
Background
The pneumatic health massage apparatus usually comprises an inflation and deflation device, which can inflate and deflate, and when deflating, generates very large airflow sound instantly, thereby bringing very bad user experience to users. Therefore, there is a need for a new device that can muffle and denoise bleed air noise.
SUMMERY OF THE UTILITY MODEL
The utility model provides a new exhaust noise reduction device.
The utility model provides an exhaust noise reduction device, which can be connected with an air charging and discharging device, and comprises a silencing material body and at least two silencing cavities, wherein the silencing cavities are filled with the silencing material body; in the airflow direction, the silencing cavities are connected through a flow guide pipe, the most upstream silencing cavity is provided with an air inlet pipe capable of being connected with the air charging and discharging device, and the most downstream silencing cavity is provided with an air outlet pipe capable of discharging airflow; the air inlet pipe is provided with a first pipe section which is positioned in the most upstream sound-deadening cavity, and a plurality of sound-deadening holes are formed in the peripheral wall of the first pipe section in a penetrating mode.
When there are at least three muffling cavities, there is at least one intermediate muffling cavity between the most upstream muffling cavity and the most downstream muffling cavity. The exhaust noise reduction device may be connected to the solenoid valve.
The axis of the flow guide pipe is parallel to the axis of the air inlet pipe. The axis of the flow guide pipe can also be vertical to the axis of the air inlet pipe or have other included angles. The axis of the inlet pipe may be parallel, perpendicular or at other angles to the axis of the exhaust pipe.
The sound-deadening material body is sound-deadening cotton.
The utility model discloses a silencer, including first amortization chamber, second amortization chamber and third amortization chamber, the amortization chamber has first amortization chamber, second amortization chamber and the third amortization chamber that sets up side by side, the intake pipe is located the upper portion in first amortization chamber, the blast pipe is located the upper portion in second amortization chamber, the lower part in first amortization chamber and the lower part in third amortization chamber are through crossing a honeycomb duct connection of second amortization chamber lower part, another honeycomb duct connection is passed through at the middle part in third amortization chamber and the middle part in second amortization chamber.
The utility model provides a wearing equipment, includes the casing and installs the inside gassing device and the exhaust noise reduction device of filling of casing, the gassing device has exhaust passage, the intake pipe of the device of making an uproar with exhaust passage connects.
The utility model provides a wearing equipment, includes the casing and installs the inside exhaust of casing is fallen and is fallen the device of making an uproar and fill the gas device, it includes solenoid valve, air feeder and air feeder to fill the gas device, the solenoid valve has valve body and case, the valve body has valve pocket, exhaust passage, inflation channel and air feed channel, case movable mounting be in the valve intracavity and can make the inflation channel switch the alternative with exhaust passage or air feed channel intercommunication, air feed channel with air feeder connects, inflation channel with air feeder connects, the exhaust fall the intake pipe of the device of making an uproar with exhaust passage connects.
The air supply device is an air pump, and the air supply device is an air bag. The inner diameter of the exhaust passage is smaller than the inner diameter of the intake pipe.
The utility model has the advantages that: the peak frequency of exhaust noise can be improved by arranging the silencing holes, and the higher the frequency is, the shorter the wavelength is, and the noise with the shorter wavelength is easier to be subjected to silencing and noise reduction treatment; through setting up a plurality of amortization chambeies, when making the air current pass through the amortization chamber at different levels, by the amortization material body amortization noise reduction to effectively reduce the exhaust sound.
Drawings
Fig. 1 is a schematic sectional view (solenoid valve closed) of the exhaust noise reduction device of the present embodiment after being connected to the solenoid valve, wherein the arrow direction is the air flow direction;
fig. 2 is a schematic sectional view of the exhaust noise reduction device of the present embodiment after being connected to a solenoid valve (the solenoid valve is open), wherein the arrow direction is the air flow direction;
fig. 3 is a schematic perspective view of an intake pipe of the exhaust noise reduction device of the present embodiment;
fig. 4 is a schematic cross-sectional view of the exhaust noise reduction device of the present embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, an exhaust noise reduction device connectable to a solenoid valve 1 includes a sound-deadening material body 5 and sound- deadening chambers 21, 22, and 23, and the sound-deadening material body 5 is filled in each of the sound- deadening chambers 21, 22, and 23.
According to the direction of the air flow, the most upstream silencing cavity 21 is provided with an air inlet pipe 24, the most downstream silencing cavity 23 is provided with an air outlet pipe 26, and the silencing cavities are connected through guide pipes 27 and 28, so that the noise reduction device is provided with a plurality of stages of silencing cavities.
The intake pipe 24 has one end closed and the other end open, the intake pipe 24 has a first pipe section 29 located inside the most upstream sound-deadening chamber 21 and a second pipe section 20 located outside the most upstream sound-deadening chamber 21, the first pipe section 29 has a closed end, and the second pipe section 20 has an open end. The circumferential wall of the first pipe segment 29 is provided with a plurality of muffling holes 25 penetrating in the radial direction of the intake pipe 24, and the intake pipe 24 communicates with the most upstream muffling chamber 21 through the muffling holes 25. The second pipe section 20 can be connected to the exhaust gas duct of the solenoid valve 1.
The exhaust pipe 26 communicates the most downstream sound-deadening chamber 23 with the ambient atmosphere, and the gas flow in the sound-deadening chamber 23 can be discharged through the exhaust pipe 26. The flow guide tubes 27, 28 are capable of passing an air flow and of guiding the air flow in a predetermined direction, such as a straight flow or a winding flow. The flow guide pipe can be a round pipe or a through hole.
When exhausting, the electromagnetic valve 1 is opened, the inflation channel of the electromagnetic valve is communicated with the exhaust channel, and compressed gas in the gas equipment 4 enters the exhaust noise reduction device after passing through the inflation channel and the exhaust channel. Compressed gas enters the multistage muffling cavities through the muffling holes 25 of the gas inlet pipe 24, is muffled and denoised by the muffling material bodies 5 when sequentially passing through the multistage muffling cavities, and is finally discharged through the exhaust pipe 26.
As shown in fig. 1 to 4, an exhaust noise reduction device, which can be connected to a solenoid valve 1, includes a chamber 2 and a sound-deadening material body 5. The interior of the chamber body 2 is partitioned into a first muffling chamber 21, a second muffling chamber 23 and a third muffling chamber 22 which are independent of each other. The first muffling chamber 21, the second muffling chamber 23 and the third muffling chamber 22 are arranged side by side, and the second muffling chamber 23 is located between the first muffling chamber 21 and the third muffling chamber 22. The first sound-deadening chamber 21, the second sound-deadening chamber 23 and the third sound-deadening chamber 22 are filled with sound-deadening material bodies 5. The sound-deadening material body is made of sound-deadening cotton.
An air inlet pipe 24 is fixed at the upper part of the first silencing cavity 21, the air inlet pipe 24 is provided with a first pipe section 29 extending inwards into the first silencing cavity 21 and a second pipe section 20 extending outwards from the first silencing cavity 21, the end part of the first pipe section 29 is closed, and the end part of the second pipe section 20 is opened. The circumferential wall of the first tube section 29 is provided with a plurality of muffling holes 25 running through in the radial direction of the inlet tube. The lower part of the first muffling chamber 21 and the lower part of the third muffling chamber 22 are connected by a first flow-guiding tube 28, the first flow-guiding tube 28 connects the first muffling chamber 21 and the third muffling chamber 22, and the first flow-guiding tube 28 crosses the second muffling chamber 23. The middle of the third muffling chamber 22 and the middle of the second muffling chamber 23 are connected by a through hole serving as a second flow tube 27, and the second flow tube 27 communicates the third muffling chamber 22 and the second muffling chamber 23. An exhaust pipe 26 is fixed on the upper part of the second silencing cavity 23, the exhaust pipe 26 is communicated with the second silencing cavity 23 and the ambient atmosphere, and the exhaust pipe 26 traverses the third silencing cavity 22 and extends out of the cavity 2. Through the arrangement of the first guide pipe and the second guide pipe, the air flow flows in a roundabout way in the connected silencing cavities, so that the air flow can be fully absorbed by the silencing material body to reduce noise.
The axis of the inlet pipe 24 is parallel to the axis of the first flow conduit 28, and the first flow conduit 28 is located below the inlet pipe 24. The axis of the second duct 27 is parallel to the axis of the first duct 28, the second duct 27 being located above the first duct 28. The axis of the exhaust pipe 26 is parallel to the axis of the second flow duct 27, and the exhaust pipe 26 is located above the second flow duct 27.
The solenoid valve 1 includes a valve body 11 and a valve body 13. The valve body 11 has a valve chamber 12, an exhaust passage 14, an inflation passage 15, and an air supply passage 17. The exhaust passage 14 is connected to an intake pipe 24 of the exhaust noise reduction device through an air pipe 6, and the inner diameter of the intake pipe 24 may be larger than that of the exhaust passage 14. The inflation channel 15 is connected to the gas consuming device 4, the axis of the inflation channel 15 may be perpendicular to the axis of the exhaust channel 14, and the gas supply channel 17 is connected to the gas supplying device 3. A first valve port 16 is provided between the exhaust passage 14 and the charge passage 15, and a second valve port 18 is provided between the supply passage 17 and the charge passage 15. The valve spool 13 is mounted within the valve chamber 12 and is capable of reciprocating between a closed position and an open position. In the closed position, the valve element 13 closes the first valve port 16 and opens the second valve port 18, disconnecting the exhaust channel 14 from the charging channel 15 and connecting the supply channel 17 to the charging channel 15, the gas supply device 3 being able to charge the gas use device 4; in the open position, the valve core 13 opens the first valve port 16 and closes the second valve port 18, the exhaust passage 14 and the inflation passage 15 are communicated, the air supply passage 17 and the inflation passage 15 are disconnected, and the compressed air in the air-using device 4 can enter the noise reduction and silencing device through the exhaust passage 14.
When the electromagnetic valve 1 is opened, the compressed gas in the gas-using equipment 4 enters the exhaust noise reduction device through the exhaust passage 14 of the electromagnetic valve, passes through the gas inlet pipe 24, the first silencing cavity 21, the first flow guide pipe 28, the third silencing cavity 22, the second flow guide pipe 27 and the second silencing cavity 23 in sequence, and is finally exhausted through the exhaust pipe 26.
In the exhaust noise reduction device, a plurality of fine muffling holes are formed in the peripheral wall of the air inlet pipe, the peak frequency of exhaust noise is increased through the muffling holes, the higher the frequency is, the shorter the wavelength is, and the noise with the shorter wavelength is easier to be muffled and reduced. In the exhaust process, the airflow passes through the multistage muffling cavity, and the muffling cavity is filled with muffling material bodies (such as sound-absorbing cotton), and the muffling material bodies can repeatedly absorb noises with different frequencies, so that a better noise reduction effect is realized.
A wearable device comprises a shell and an air charging and discharging device arranged inside the shell. The inflation and deflation device can receive gas input to realize inflation, and can also exhaust gas through the exhaust channel. The exhaust passage of the air charging and discharging device is connected with the air inlet pipe of the exhaust noise reduction device, and the exhaust noise reduction device is used for silencing and reducing the exhaust noise of the air charging and discharging device. The wearable device can be manually inflated and deflated and can also be automatically inflated and deflated. The wearing device is like the existing inflatable neck pillow. The inflation and deflation device is an air bag.
The utility model provides a wearing equipment, it can dress body parts such as user's head, face, truck and four limbs, and it includes the casing and installs the inflation and deflation device and the exhaust noise reduction device inside the casing, and this inflation and deflation device includes air supply equipment, gas equipment and solenoid valve. The exhaust passage of the electromagnetic valve is connected with the air inlet pipe of the exhaust noise reduction device, the inflation passage of the electromagnetic valve is connected with the air supply equipment, and the air supply passage of the electromagnetic valve is connected with the air supply equipment. Air supply devices such as air pumps and air devices such as air bags. The air bag is controlled to be inflated and deflated through the electromagnetic valve, and then the air pressure massage on the body part of the user is realized.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.
Claims (8)
1. The exhaust and noise reduction device is characterized by being capable of being connected with an air charging and discharging device and comprising a silencing material body and at least two silencing cavities, wherein the silencing cavities are filled with the silencing material body; in the airflow direction, the silencing cavities are connected through a flow guide pipe, the most upstream silencing cavity is provided with an air inlet pipe capable of being connected with the air charging and discharging device, and the most downstream silencing cavity is provided with an air outlet pipe capable of discharging airflow; the air inlet pipe is provided with a first pipe section which is positioned in the most upstream sound-deadening cavity, and a plurality of sound-deadening holes are formed in the peripheral wall of the first pipe section in a penetrating mode.
2. The exhaust noise reduction device of claim 1, wherein an axis of the draft tube is parallel to an axis of the intake pipe.
3. The exhaust noise reduction device of claim 1, wherein the body of sound dampening material is sound dampening cotton.
4. The exhaust noise reduction device according to claim 1, wherein the muffling chamber has a first muffling chamber, a second muffling chamber and a third muffling chamber arranged side by side, the intake pipe is provided at an upper portion of the first muffling chamber, the exhaust pipe is provided at an upper portion of the second muffling chamber, a lower portion of the first muffling chamber and a lower portion of the third muffling chamber are connected by a flow guide pipe crossing a lower portion of the second muffling chamber, and a middle portion of the third muffling chamber and a middle portion of the second muffling chamber are connected by another flow guide pipe.
5. A wearable device comprises a shell and an air charging and discharging device arranged in the shell, wherein the air charging and discharging device is provided with an exhaust channel, the wearable device is characterized by further comprising the air discharging and noise reducing device as claimed in any one of claims 1 to 4, and an air inlet pipe of the air discharging and noise reducing device is connected with the exhaust channel.
6. The utility model provides a wearing equipment, includes the casing and installs the inside device of aerifing of filling of casing, it includes solenoid valve, air feeder and air feeder to fill the gas feeder, the solenoid valve has valve body and case, the valve body has valve pocket, exhaust passage, inflation passageway and air feed passageway, case movable mounting is in the valve intracavity and can make inflation passageway switch the alternative with exhaust passage or air feed passageway intercommunication, air feed passageway with air feeder connects, inflation passageway with air feeder connects, its characterized in that still includes any one in claim 1-5 the device of making an uproar falls in the exhaust, the exhaust fall the intake pipe of the device of making an uproar with exhaust passage connects.
7. The wearable device of claim 6, wherein the gas supply device is an air pump and the gas supply device is an air bladder.
8. The wearable device of claim 6, wherein an inner diameter of the exhaust channel is smaller than an inner diameter of the intake tube.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920987256.4U CN210372507U (en) | 2019-06-26 | 2019-06-26 | Exhaust noise reduction device and wearable equipment |
| PCT/CN2020/077992 WO2020258915A1 (en) | 2019-06-26 | 2020-03-05 | Air discharge noise reduction device and wearable apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920987256.4U CN210372507U (en) | 2019-06-26 | 2019-06-26 | Exhaust noise reduction device and wearable equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210372507U true CN210372507U (en) | 2020-04-21 |
Family
ID=70267778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920987256.4U Active CN210372507U (en) | 2019-06-26 | 2019-06-26 | Exhaust noise reduction device and wearable equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210372507U (en) |
| WO (1) | WO2020258915A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101033614B1 (en) * | 2009-03-30 | 2011-05-11 | 주식회사 경동도시가스 | Silence device for gas pressure regulator |
| CN104344151A (en) * | 2013-08-08 | 2015-02-11 | 常州市武进华能电力辅机有限公司 | High-efficiency silencer |
| CN105332764A (en) * | 2015-12-04 | 2016-02-17 | 安徽合叉叉车有限公司 | Noise-reduction environment-friendly muffler for small-tonnage diesel fork lift truck |
| CN206268700U (en) * | 2016-11-10 | 2017-06-20 | 江苏瑞帆环保装备股份有限公司 | Double-deck micropore muffler |
| CN207168706U (en) * | 2017-03-03 | 2018-04-03 | 聊城市誉林工业设计有限公司 | A kind of massage blanket |
| CN207634893U (en) * | 2017-12-22 | 2018-07-20 | 成都齐创友康环保科技有限公司 | A kind of winding type pipeline silencer |
-
2019
- 2019-06-26 CN CN201920987256.4U patent/CN210372507U/en active Active
-
2020
- 2020-03-05 WO PCT/CN2020/077992 patent/WO2020258915A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2020258915A1 (en) | 2020-12-30 |
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