CN207278954U - A kind of check valve that can reduce exhaust noise - Google Patents
A kind of check valve that can reduce exhaust noise Download PDFInfo
- Publication number
- CN207278954U CN207278954U CN201721325247.6U CN201721325247U CN207278954U CN 207278954 U CN207278954 U CN 207278954U CN 201721325247 U CN201721325247 U CN 201721325247U CN 207278954 U CN207278954 U CN 207278954U
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- tablet
- block
- gas outlet
- air inlet
- piston
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Abstract
It the utility model is related to a kind of check valve that can reduce exhaust noise.The device includes valve body, the valve body side offers the air inlet connected with valve chamber, opposite side offers the gas outlet connected with valve chamber, the tablet of closure air inlet is equipped with the valve chamber and contradicts the block on gas outlet, the opening for connecting valve chamber and gas outlet is offered on the block, piston element is equipped between the tablet and block, the piston element include piston bush on the baffle and on tablet with the matched piston of piston bush, elastomeric element is socketed with the outer circumferential surface of the piston bush, described elastomeric element one end is contradicted on tablet, tablet is pressed together on air inlet, the other end is contradicted on block, block is pressed together on gas outlet.Since elastomeric element is engaged with piston element, it can be ensured that tablet slowly opens or closes, so as to reduce the pulsations of exhaust, also avoids tablet from directly impinging upon on valve body, makes a noise.
Description
Technical field
Check valve technical field is the utility model is related to, more particularly to a kind of can reduce the unidirectional of exhaust gas pulses noise
Valve.
Background technology
A kind of hydraulically-controlled one-way valve for reducing cavitation erosion is disclosed in existing Chinese patent database, its number of patent application is：
201620270477.6 the applying date is：2016.03.31, Authorization Notice No. is：CN205533503U, authorized announcement date are：
2016.08.31, which includes the valve body with the internal fluid channels along the extension of its axis determined, is arranged on valve body
Spool in internal fluid channels, the spool is interior to offer spring cavity along its direction of axis line, is installed in the spring cavity
There is spring, for one end contact of spring on the bottom surface of spring cavity, spool is poppet valve core, and the front end of the spool is provided with multiple convex
Rise, the raised section semicircular in shape, and the distance between adjacent two protrusions are equal, and offered in the protrusion
Fluid course.It is disadvantageous in that：The poppet valve core of the device is to block fluid passage, therefore poppet valve core by recoil of spring
With being hit during valve body contact, easily make a noise.
Utility model content
The purpose of this utility model is in view of the deficienciess of the prior art, providing a kind of reliable and stable work, low noise
Check valve.
A kind of check valve that can reduce exhaust noise, including valve body, the valve body side offer what is connected with valve chamber
Air inlet, opposite side offer the gas outlet connected with valve chamber, and tablet and the conflict of closure air inlet are equipped with the valve chamber
Block on gas outlet, the opening for connecting valve chamber and gas outlet is offered on the block, is set between the tablet and block
There is piston element, the piston element is matched with piston bush including the piston bush on baffle and on tablet
Piston, elastomeric element is socketed with the outer circumferential surface of the piston bush, described elastomeric element one end is contradicted on tablet, by flat-plate compressed
Close on air inlet, the other end is contradicted on block, and block is pressed together on gas outlet.
During utility model works, gas enters from air inlet to valve chamber, and gas is open-top by tablet, tablet and air inlet it
Between form the gap that passes through of gas, while elastic components contract, piston slowly move in piston bush, pass through the gas in gap
Gas outlet is flowed to from the opening of block, then gas is discharged from gas outlet, when stopping ventilating into air inlet, elastomeric element and work
Plunger member, which is engaged, is slowly pressed in tablet on air inlet, avoids gas backstreaming.
Compared with prior art, the beneficial effects of the utility model are：, can since elastomeric element is engaged with piston element
To ensure that tablet slowly opens or closes, so as to reduce the pulsations of exhaust, also tablet is avoided directly to impinge upon on valve body,
Make a noise.
Further, the elastomeric element is compression spring.
Further, the valve body includes base and the housing with base engagement, and air inlet is offered on the base,
Gas outlet is offered on housing.
For the ease of the Fast Installation check valve, the base is equipped with the connector of evagination, and the air inlet is with being connected
Head is connected, and connector periphery is equipped with external screw thread.
For the ease of the Fast Installation check valve, the housing is equipped with the fast joint of evagination.
In order to improve the air-tightness of valve chamber, while the shock of tablet and block and valve body is reduced, what is be bonded with air inlet is flat
Plate surface is equipped with elastic seal ring, and the block being bonded with gas outlet is equipped with cushion.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Wherein, 1 valve body, 101 valve chambers, 102 air inlets, 103 gas outlets, 104 bases, 105 housings, 106 connectors, 107
Fast joint, 2 tablets, 201 elastic seal rings, 3 blocks, 301 openings, 302 cushions, 4 piston elements, 401 piston bush, 402 live
Plug, 5 elastomeric elements, 501 compression springs.
Embodiment
As described in Figure 1, it is a kind of check valve that can reduce exhaust noise, including valve body 1, further, valve body 1 includes
Base 104 and the housing 105 coordinated with base 104, offer air inlet 102 on base 104, are offered out on housing 105
Gas port 103, for the ease of the Fast Installation check valve, base 104 is equipped with the connector 106 of evagination, and air inlet 102 is with being connected
First 106 connect, and 106 periphery of connector is equipped with external screw thread, and for the ease of the Fast Installation check valve, housing 105 is equipped with outer
Convex fast joint 107, block 3 of the interior tablet 2 and conflict for being equipped with closure air inlet 102 of valve chamber 101 on gas outlet 103,
Offered on block 3 and connect valve chamber 101 and the opening 301 of gas outlet 103, piston element 4 is equipped between tablet 2 and block 3, it is living
Plunger member 4 includes the piston bush 401 on baffle and the piston 402 matched with piston bush 401 on tablet 2, living
Elastomeric element 5 is socketed with the outer circumferential surface of plug sleeve 401, further, elastomeric element 5 is to compress spring 501, elastomeric element 5 one
End is contradicted on tablet 2, and tablet 2 is pressed together on air inlet 102, and the other end is contradicted on block 3, and block 3 is pressed together on out
On gas port 103, in order to improve the air-tightness of valve chamber 101, while the shock of tablet 2 and block 3 and valve body 1 is reduced, with air inlet
2 surface of tablet of 102 fittings is equipped with elastic seal ring 201, and the block 3 being bonded with gas outlet 103 is equipped with cushion 302.
During work, gas enters from air inlet 102 to valve chamber 101, and gas is open-top by tablet 2, tablet 2 and air inlet 102
Between form the gap that passes through of gas, while elastomeric element 5 is shunk, and the slowly movement in piston bush 401 of piston 402, passes through
The gas in gap flows to gas outlet 103 from the opening 301 of block 3, and then gas is discharged from gas outlet 103, when stopping to air inlet
Ventilation, elastomeric element 5 are engaged with piston element 4 and tablet 2 are slowly pressed on air inlet 102 in mouth 102, avoid gas from returning
Stream.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed in the utility model, this
The technical staff in field is according to disclosed technology contents, it is not necessary to which performing creative labour can be special to some of which technology
Sign makes some and replaces and deform, these are replaced and deformation is within the protection scope of the present utility model.
Claims (6)
1. a kind of check valve that can reduce exhaust noise, including valve body, the valve body side offer with valve chamber connect into
Gas port, opposite side offer the gas outlet connected with valve chamber, it is characterised in that：The tablet of closure air inlet is equipped with the valve chamber
And the block on gas outlet is contradicted, the opening for connecting valve chamber and gas outlet, the tablet and gear are offered on the block
Be equipped with piston element between block, the piston element include piston bush on baffle and on tablet with piston bush
Matched piston, elastomeric element is socketed with the outer circumferential surface of the piston bush, and described elastomeric element one end is contradicted on tablet,
Tablet is pressed together on air inlet, the other end is contradicted on block, and block is pressed together on gas outlet.
A kind of 2. check valve that can reduce exhaust noise according to claim 1, it is characterised in that：The elastomeric element
To compress spring.
A kind of 3. check valve that can reduce exhaust noise according to claim 1 or 2, it is characterised in that：The valve body
Housing including base and with base engagement, offers air inlet on the base, gas outlet is offered on housing.
A kind of 4. check valve that can reduce exhaust noise according to claim 3, it is characterised in that：Set on the base
There is the connector of evagination, the air inlet is connected with connector, and connector periphery is equipped with external screw thread.
A kind of 5. check valve that can reduce exhaust noise according to claim 4, it is characterised in that：Set on the housing
There is the fast joint of evagination.
A kind of 6. check valve that can reduce exhaust noise according to claim 5, it is characterised in that：It is bonded with air inlet
Planar surface be equipped with elastic seal ring, the block being bonded with gas outlet is equipped with cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721325247.6U CN207278954U (en) | 2017-10-16 | 2017-10-16 | A kind of check valve that can reduce exhaust noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721325247.6U CN207278954U (en) | 2017-10-16 | 2017-10-16 | A kind of check valve that can reduce exhaust noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278954U true CN207278954U (en) | 2018-04-27 |
Family
ID=61980220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721325247.6U Active CN207278954U (en) | 2017-10-16 | 2017-10-16 | A kind of check valve that can reduce exhaust noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207278954U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730551A (en) * | 2018-05-28 | 2018-11-02 | 贵州环科环境工程有限公司 | A kind of triple valve |
| CN109261440A (en) * | 2018-10-22 | 2019-01-25 | 南京铁道职业技术学院 | A kind of automatic electronic dispenser |
| WO2024001523A1 (en) * | 2022-06-27 | 2024-01-04 | 上海海立新能源技术有限公司 | Exhaust valve assembly and scroll compressor comprising same |
-
2017
- 2017-10-16 CN CN201721325247.6U patent/CN207278954U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730551A (en) * | 2018-05-28 | 2018-11-02 | 贵州环科环境工程有限公司 | A kind of triple valve |
| CN108730551B (en) * | 2018-05-28 | 2020-04-21 | 贵州环科环境工程有限公司 | Three-way valve |
| CN109261440A (en) * | 2018-10-22 | 2019-01-25 | 南京铁道职业技术学院 | A kind of automatic electronic dispenser |
| WO2024001523A1 (en) * | 2022-06-27 | 2024-01-04 | 上海海立新能源技术有限公司 | Exhaust valve assembly and scroll compressor comprising same |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |