CN207174182U - A kind of exhaust muffling device for vacuum packing machine - Google Patents
A kind of exhaust muffling device for vacuum packing machine Download PDFInfo
- Publication number
- CN207174182U CN207174182U CN201720961051.XU CN201720961051U CN207174182U CN 207174182 U CN207174182 U CN 207174182U CN 201720961051 U CN201720961051 U CN 201720961051U CN 207174182 U CN207174182 U CN 207174182U
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- packing machine
- cavity
- vacuum packing
- machine according
- muffling device
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Abstract
The utility model discloses a kind of exhaust muffling device for vacuum packing machine, including muffler body, there is cavity in the muffler body, the inlet channel being connected with cavity and exhaust passage are offered on the outer wall of the muffler body, the inlet channel can be connected with the blast pipe of vacuum packing machine, and the sectional area of the cavity is more than the sectional area of inlet channel.When the gas in blast pipe through inlet channel flow into cavity after, gas expansion and cause its pressure reduce, reduce pressure after gas be emitted into via exhaust passage in air, reduce gas discharge when noise, and then reduce vacuum packing machine work when noise.
Description
Technical field
It the utility model is related to the silencing means of vacuum packing machine, particularly vacuum packing machine.
Background technology
There is many pneumatic elements, these pneumatic elements need to its conveying high-pressure gas at work on vacuum packing machine
Body, gases at high pressure finally need to be emitted into air.In most cases, the blast pipe of these pneumatic elements is directly connected with air
Logical, gases at high pressure are directly discharged in air via blast pipe.When gases at high pressure directly discharge, gas pressure is in blast pipe
Drastically reduced at gas outlet, thus produce very big noise.This causes vacuum packing machine to produce very big noise, shadow at work
Ring the working environment in workshop and the physical and mental health of operating personnel.
Utility model content
In order to solve the above problems, the utility model provides a kind of silencing means, and the silencing means can reduce vacuum packet
Noise caused by installation work.
Technical scheme is used by the utility model solves its technical problem：
A kind of exhaust muffling device for vacuum packing machine, including muffler body, have in the muffler body
Cavity, the inlet channel being connected with cavity and exhaust passage is offered on the outer wall of the muffler body, the air inlet is led to
Road can be connected with the blast pipe of vacuum packing machine, and the sectional area of the cavity is more than the sectional area of inlet channel.
Preferably, the first sound absorbing layer is provided with the inwall of the cavity.
Preferably, it is provided with filter screen on first sound absorbing layer.
Preferably, the width of the inlet channel gradually increases from the outside to the core.
Preferably, the second noise reduction layer is provided with the outer wall of the muffler body.
Preferably, the deflection plate for changing gas flow direction is provided with the cavity.
Preferably, be additionally provided with the muffler body be connected with the cavity pick and place mouth and for closing
State the end cap for picking and placeing mouth.
Preferably, the end cap is hubbed in muffler body and makes end cap can be with respect to muffler body rotating folding.
Preferably, the muffler body includes shell body and the inner housing being arranged in shell body, the cavity are set
Put in inner housing, there is spacing between the inner housing and shell body and make to form sound insulation sky between inner housing and shell body
Chamber.
The beneficial effects of the utility model are：The utility model includes muffler body, has cavity in muffler body,
The inlet channel being connected with cavity and exhaust passage are offered in muffler body, inlet channel can be with vacuum packing machine
Blast pipe be connected, the sectional area of cavity is more than the sectional area of inlet channel, when the gas in blast pipe is through inlet channel stream
After entering cavity, gas expansion and cause its pressure reduce, reduce pressure after gas be emitted into via exhaust passage in air, drop
Noise during low gas discharge, and then noise when reducing vacuum packing machine work.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples：
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is that the utility model opens the structural representation after end cap；
Fig. 3 is sectional view of the present utility model.
Embodiment
1~Fig. 3 of reference picture, the utility model are a kind of exhaust muffling devices for vacuum packing machine, including muffler
Main body 1, muffler body 1 is interior to have cavity 21, and the air inlet being connected with cavity 21 is offered on the outer wall of muffler body 1
Passage 22 and exhaust passage 23.Be provided with pipe joint 5 at the air inlet of inlet channel 22, inlet channel 22 by pipe joint 5 with
Blast pipe on vacuum packing machine is connected.The sectional area of cavity 21 is more than the sectional area of inlet channel 22.When in blast pipe
When gas flows into cavity 21 through inlet channel 22, because the sectional area of cavity 21 is more than the sectional area of inlet channel 22, gas will
Expand, so that the pressure of gas reduces.Due to gas, pressure reduces in cavity 21, and gas is through the row of exhaust passage 23
Put to noise caused by air and will also decrease.Noise when gas discharge can be reduced after silencing means is set, and then can be with
The noise of vacuum packing machine work is reduced, is advantageous to the physical and mental health of operating personnel, and good workshop condition can be built.
The first sound absorbing layer 31 is provided with the inwall of cavity 21.First sound absorbing layer 31 can absorb noise, avoid cavity
The external world is arrived in noise outflow in 21.In the present embodiment, the first sound absorbing layer 31 specifically uses cystosepiment, certainly in practical application,
First sound absorbing layer 31 can also use the structure such as sponge or the plastic plate with loose structure.
Further, it is provided with filter screen on the first sound absorbing layer 31.Set filter screen to filter the impurity in gas, avoid
Impurity enters the first sound absorbing layer 31 and influences the erasure effect of the first sound absorbing layer 31.
In the present embodiment, the width of inlet channel 22 gradually increases from the outside to the core.It so may be such that gas is flowing through air inlet
Gradually expand and be depressured during passage 22, avoid gas from quickly being reduced because of pressure from inlet channel 22 into during cavity 21
And produce larger sound.
The second noise reduction layer is provided with the outer wall of muffler body 1, the second noise reduction layer coats the outer wall of muffler body 1.
Second noise reduction layer can also absorb the noise of silencing means.Likewise, the second sound absorbing layer specifically also can use cystosepiment, sponge or
Person has the structures such as the plastic plate of loose structure.
Deflection plate 4 is additionally provided with cavity 21, deflection plate 4 between inlet channel 22 and exhaust passage 23, so as to
Enable deflection plate 4 to change the flow direction of gas, and then the pressure of gas can be made to produce loss.In the present embodiment, baffling
Plate 4 is arranged in cavity 21 by the way of plugging.Certainly, in practical application, deflection plate 4 can also be pacified by the way of welding
In cavity 21.
Be additionally provided with muffler body 1 be connected with cavity 21 pick and place mouth and for closing the end for picking and placeing mouth
Lid 24.Mouth is picked and placeed by this filter screen in cavity 21 and the first noise reduction layer can be installed and changed, can also be to cavity 21
Carry out the operation such as cleaning.
In the present embodiment, end cap 24 is hubbed in muffler body 1, so that end cap 24 can be with respect to muffler body 1
Rotating folding.When needing to close end cap 24, it can use the structures such as bolt that end cap 24 is locked in muffler body 1, with
This limitation end cap 24 is with respect to the Unscrew of muffler body 1.Certainly, in practical operation, muffler body 1 and end cap 24 may be used also
Directly it is connected using flange arrangement.
In the present embodiment, muffler body 1 includes shell body 11 and inner housing 12, and inner housing 12 is arranged on shell body 11
Interior, cavity 21 is arranged in inner housing 12, has spacing between the outer wall of inner housing 12 and the inwall of shell body 11, so that
Sound insulation cavity 26 is formed between inner housing 12 and shell body 11.Using this structure, preferable soundproof effect can be played, avoids disappearing
Noise transmission in sound device main body 1 is to the external world.Further, vacuum pumping can be carried out to sound insulation cavity 26, makes sound insulation cavity
In 26 close to vacuum, soundproof effect is optimized with this.In addition, sound-absorbing material can be also filled in sound insulation cavity 26, such as sponge
Or foamed plastics etc..
Above-described embodiment is preferred scheme of the present utility model, and the utility model can also have other embodiments.Ability
The technical staff in domain puts in the head without prejudice to the utility model spirit can also make equivalent variations or replacement, these equivalent changes
Type or replacement are all contained in the scope set by the application claim.
Claims (9)
1. a kind of exhaust muffling device for vacuum packing machine, it is characterised in that including muffler body (1), the noise reduction
There is cavity (21) in device main body (1), the air inlet being connected with cavity (21) is offered on the outer wall of the muffler body (1)
Passage (22) and exhaust passage (23), the inlet channel (22) can be connected with the blast pipe of vacuum packing machine, the chamber
The sectional area of body (21) is more than the sectional area of inlet channel (22).
A kind of 2. exhaust muffling device for vacuum packing machine according to claim 1, it is characterised in that：The cavity
(21) the first sound absorbing layer (31) is provided with inwall.
A kind of 3. exhaust muffling device for vacuum packing machine according to claim 2, it is characterised in that：Described first
Sound absorbing layer is provided with filter screen on (31).
A kind of 4. exhaust muffling device for vacuum packing machine according to claim 1, it is characterised in that：The air inlet
The width of passage (22) gradually increases from the outside to the core.
A kind of 5. exhaust muffling device for vacuum packing machine according to claim 1, it is characterised in that：The noise reduction
The second noise reduction layer is provided with the outer wall of device main body (1).
A kind of 6. exhaust muffling device for vacuum packing machine according to claim 1, it is characterised in that：The cavity
(21) deflection plate (4) for changing gas flow direction is provided with.
A kind of 7. exhaust muffling device for vacuum packing machine according to claim 1, it is characterised in that：The noise reduction
Be additionally provided with device main body (1) be connected with the cavity (21) pick and place mouth and for closing the end cap for picking and placeing mouth
(24)。
A kind of 8. exhaust muffling device for vacuum packing machine according to claim 7, it is characterised in that：The end cap
(24) it is hubbed in muffler body (1) and makes end cap (24) can be with respect to muffler body (1) rotating folding.
A kind of 9. exhaust muffling device for vacuum packing machine according to claim 1, it is characterised in that：The noise reduction
Device main body (1) includes shell body (11) and the inner housing (12) being arranged in shell body (11), the cavity (21) are arranged on
There is spacing in inner housing (12), between the inner housing (12) and shell body (11) and make inner housing (12) and shell body (11)
Between formed sound insulation cavity (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961051.XU CN207174182U (en) | 2017-08-02 | 2017-08-02 | A kind of exhaust muffling device for vacuum packing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961051.XU CN207174182U (en) | 2017-08-02 | 2017-08-02 | A kind of exhaust muffling device for vacuum packing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207174182U true CN207174182U (en) | 2018-04-03 |
Family
ID=61744198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720961051.XU Active CN207174182U (en) | 2017-08-02 | 2017-08-02 | A kind of exhaust muffling device for vacuum packing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207174182U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372801A (en) * | 2018-11-20 | 2019-02-22 | 攀枝花川特风机有限公司 | A kind of efficient shock-absorbing and noise-eliminating device |
-
2017
- 2017-08-02 CN CN201720961051.XU patent/CN207174182U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372801A (en) * | 2018-11-20 | 2019-02-22 | 攀枝花川特风机有限公司 | A kind of efficient shock-absorbing and noise-eliminating device |
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