CN201561166U - Pneumatic check valve - Google Patents
Pneumatic check valve Download PDFInfo
- Publication number
- CN201561166U CN201561166U CN2009202627820U CN200920262782U CN201561166U CN 201561166 U CN201561166 U CN 201561166U CN 2009202627820 U CN2009202627820 U CN 2009202627820U CN 200920262782 U CN200920262782 U CN 200920262782U CN 201561166 U CN201561166 U CN 201561166U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- air
- pneumatic unidirectional
- exhaust outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a pneumatic check valve comprising a valve body of which two ends are provided with an air inlet and an air outlet, and a valve core is arranged in the valve body, wherein an air channel is arranged in the valve core and arranged between the air inlet and the air outlet; and an air tap is arranged at one end of the valve core and can be automatically opened or closed along with the airflow in different directions. The pneumatic check valve has simple structure, reliable working and high air tightness, and has no requirement for cleanliness of the airflow.
Description
(1) technical field:
The utility model relates to a kind of a kind of one-way valve that relates generally to, and particularly relates to a kind of one-way valve that uses on the powder spraying equipment.
(2) background technique:
The structure of existing Pneumatic unidirectional valve as shown in Figure 1 and Figure 2, a kind of is that steel ball is the one-way valve of spool, another is the one-way valve of sheet rubber as spool, all be to utilize the pressure of spring to head on spool in a side to stop up gas circuit, the air-flow that flows into when forward enough just can be pushed spool open greatly the time and open gas circuit, oppositely then can not open spool.There is following shortcoming in above one-way valve: 1) vapour lock is bigger; Have only the elastic force that when air-flow is enough big, just can overcome spring that stopper or steel ball are backed down and open valve, and this process is to the energy loss to some extent of air-flow.2) pollution resistance, poor air-tightness; As enter in the air-flow in the valve body and have foreign material (as powder), foreign material can stop adhesion at sheet rubber or steel ball surface, like this, formed the slit between sheet rubber, steel ball and the suction port, influence the tightness of valve, therefore this one-way valve can only be applicable to clean air-flow, has limited its application area like this.
(3) model utility content:
In order to overcome the deficiencies in the prior art, the utility model provides that a kind of pollution resistance is strong, simple in structure, tightness is good, flowed energy is not had the Pneumatic unidirectional valve of consume.
The utility model is achieved through the following technical solutions:
A kind of Pneumatic unidirectional valve comprises that two ends are provided with the valve body of intake grill and exhaust outlet, are provided with spool in the described valve body, wherein, be provided with the air channel in the spool between intake grill and exhaust outlet, spool one end is provided with valve, valve can with various flows to air-flow open automatically or closed.
Above-mentioned described valve is made up of at least two blinkers, and blinker favours airflow direction; When positive draft passed through, the free end that air-flow promotes blinker opened opening, made air channel and intake grill and exhaust outlet UNICOM in the spool; When back draught passed through, air-flow promoted the free end closure of blinker, made the interior air channel closed amputation intake grill of spool and the UNICOM of exhaust outlet.
Above-mentioned described spool is made into integration by rubber.
Above-mentioned described valve is made up of two blinkers, and opening becomes in-line.
Above-mentioned described valve interior wall is provided with groove, and described spool afterbody outer wall stretches out male flange and groove fastens.
Above-mentioned described valve is a duckbill.
The suction port place of above-mentioned described valve body is equipped with rapid pipe joint.
The material of above-mentioned described valve body is a copper, and plating nickel on surface is handled.
The utility model compared with prior art has following advantage:
The utility model is simple in structure, and to the cleanliness no requirement (NR) of air-flow, pollution resistance is strong.Rubber is softer thin and certain elasticity is arranged, and vapour lock is little, and flowed energy does not have consume.When air-flow enters air channel (air-flow forward) from intake grill, because blinker favours airflow direction, air-flow promotion blinker, distance increases between the free end of blinker, and the opening of valve is opened, air channel and intake grill and exhaust outlet UNICOM in the spool, valve open; When air-flow enters valve body (air-flow is reverse) from exhaust outlet, air-flow promotes blinker, and the free end of each blinker closes up mutually to the center, opening closure, valve closing; It is good that the piece that keeps out the wind closes up tightness, reliable operation.
(4) description of drawings:
Fig. 1 is a kind of structural representation of existing Non-return air valve;
Fig. 2 is the another kind of structural representation of existing Non-return air valve;
Fig. 3 is an exploded view of the present utility model;
Cut-away view when Fig. 4 is the utility model valve open;
Cut-away view when Fig. 5 is the utility model valve closing;
Fig. 6 is the structural representation of the utility model spool.
(5) embodiment:
Below in conjunction with accompanying drawing the utility model is done detailed explanation:
The utility model such as Fig. 3 are to shown in Figure 6, the utility model comprises that two ends are provided with the valve body 1 of intake grill 4 and exhaust outlet 5, be provided with spool 2 in the described valve body 1, wherein, be provided with air channel 6 in the spool 2 between intake grill 4 and exhaust outlet 5, spool 2 one ends are provided with valve, valve can with various flows to air-flow open automatically or closed.
Above-mentioned described valve is made up of at least two blinkers 8, and blinker 8 favours airflow direction; When positive draft passed through, the free end that air-flow promotes blinker 8 opened opening 7, made air channel 6 and intake grill 4 and exhaust outlet 5 UNICOMs in the spool 2; When back draught by the time, air-flow promotes the free end closing any opening 7 of blinker 8, makes the air channel 6 closed amputation intake grills 4 in the spool 2 and the UNICOM of exhaust outlet 5.
Above-mentioned described spool 2 is made into integration by rubber.
Above-mentioned valve preferably is made up of two blinkers 8,7 one-tenth in-lines of opening.Described valve is a duckbill.
Above-mentioned described valve body 1 inwall is provided with groove 10, and described spool 2 afterbody outer walls stretch out male flange 11 and fasten with groove 10.
The material of above-mentioned described valve body 1 is a copper, and plating nickel on surface is handled.
The utility model is simple in structure, and to the cleanliness no requirement (NR) of air-flow, pollution resistance is strong.Rubber is softer thin and certain elasticity is arranged, and vapour lock is little, and flowed energy does not have consume.Tightness is good, reliable operation.
Working principle of the present utility model is such: when air-flow enters air channel 6 (air-flow forward) from intake grill 4, because blinker 8 favours airflow direction, air-flow promotes blinker 8, blinker 8 stressed back free ends are outwards movable, distance increases between the blinker 8, the opening 7 of valve is opened, air channel 6 and intake grill 4 and exhaust outlet 5 UNICOMs in the spool 2, valve open; When air-flow enters valve body 1 (air-flow is reverse) from exhaust outlet 5, air-flow promotes blinker 8, and the inside activity of the free end of each blinker 8 is closed up mutually, makes opening 7 closures, and spool 2 has cut off the UNICOM of intake grill 4 and exhaust outlet 5, valve closing.
The foregoing description is a better embodiment of the present utility model; but mode of execution of the present utility model is not limited thereto; other are any not to deviate from change, the modification done under spirit of the present utility model and the principle, substitute, combination, simplify; be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (8)
1. Pneumatic unidirectional valve, comprise that two ends are provided with the valve body of intake grill and exhaust outlet, be provided with spool in the described valve body, it is characterized in that: be provided with the air channel in the spool between intake grill and exhaust outlet, spool one end is provided with valve, valve can with various flows to air-flow open automatically or closed.
2. a kind of Pneumatic unidirectional valve according to claim 1, it is characterized in that: described valve is made up of at least two blinkers, and blinker favours airflow direction; When positive draft passed through, the free end that air-flow promotes blinker opened opening, made air channel and intake grill and exhaust outlet UNICOM in the spool; When back draught passed through, air-flow promoted the free end closing any opening of blinker, made the interior air channel closed amputation intake grill of spool and the UNICOM of exhaust outlet.
3. a kind of Pneumatic unidirectional valve according to claim 1, it is characterized in that: described spool is made into integration by rubber.
4. according to claim 2 or 3 described a kind of Pneumatic unidirectional valves, it is characterized in that: valve is made up of two blinkers, and opening becomes in-line.
5. a kind of Pneumatic unidirectional valve according to claim 4, it is characterized in that: described valve interior wall is provided with groove, and described spool afterbody outer wall stretches out male flange and groove fastens.
6. a kind of Pneumatic unidirectional valve according to claim 4 is characterized in that: described valve is a duckbill.
7. a kind of Pneumatic unidirectional valve according to claim 1 is characterized in that: the suction port place of described valve body is equipped with rapid pipe joint.
8. a kind of Pneumatic unidirectional valve according to claim 1 is characterized in that: the material of described valve body is a copper, and plating nickel on surface is handled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202627820U CN201561166U (en) | 2009-11-14 | 2009-11-14 | Pneumatic check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202627820U CN201561166U (en) | 2009-11-14 | 2009-11-14 | Pneumatic check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561166U true CN201561166U (en) | 2010-08-25 |
Family
ID=42626310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202627820U Expired - Fee Related CN201561166U (en) | 2009-11-14 | 2009-11-14 | Pneumatic check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561166U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392906A (en) * | 2011-11-17 | 2012-03-28 | 黄山市必利精密塑业科技有限公司 | One-way valve |
| CN105298846A (en) * | 2015-09-30 | 2016-02-03 | 海信容声(广东)冷柜有限公司 | Compressor for refrigerating device and refrigerating device |
| CN108344142A (en) * | 2018-01-23 | 2018-07-31 | 浙江上风高科专风实业有限公司 | A kind of sector structure shock-wave resistant air vent valve |
-
2009
- 2009-11-14 CN CN2009202627820U patent/CN201561166U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392906A (en) * | 2011-11-17 | 2012-03-28 | 黄山市必利精密塑业科技有限公司 | One-way valve |
| CN105298846A (en) * | 2015-09-30 | 2016-02-03 | 海信容声(广东)冷柜有限公司 | Compressor for refrigerating device and refrigerating device |
| CN108344142A (en) * | 2018-01-23 | 2018-07-31 | 浙江上风高科专风实业有限公司 | A kind of sector structure shock-wave resistant air vent valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201561166U (en) | Pneumatic check valve | |
| CN204852496U (en) | Duckbilled check valve | |
| CN201326787Y (en) | One-way valve for ventilation of air compressor | |
| CN202469178U (en) | Rectangular automatic exhaust valve | |
| CN203307113U (en) | Plate-type micropore aerator | |
| CN200965081Y (en) | Energy-saving type four side-dump type drainage-irrigation valve | |
| CN202081945U (en) | Novel automobile decorative tail pipe | |
| CN202327173U (en) | Rod-core integrated conical-surface valve | |
| CN201284856Y (en) | One-way valve | |
| CN201896974U (en) | Anti-sticking full-sealing lampblack-discharging check valve | |
| CN203906909U (en) | One-way valve | |
| CN201060007Y (en) | One-way water meter with means for anti fraudulent use of water | |
| CN200975527Y (en) | Clamped silencing check valve | |
| CN205742424U (en) | Sewer blockage-clearing device | |
| CN205689785U (en) | A kind of pressure balance type low moment of torsion flat gate valve | |
| CN219866436U (en) | Backflow-preventing faucet angle valve | |
| CN2731207Y (en) | Ball type valve inside | |
| CN2637850Y (en) | One-way valve | |
| CN110005825A (en) | A kind of direct drinking switch | |
| CN202100349U (en) | Exhaust gas recirculation (EGR) check valve | |
| CN212537478U (en) | Novel hydrophobic valve body | |
| CN202577503U (en) | Drain cleaner | |
| CN207005382U (en) | A kind of novel check aqueduct valve accessory | |
| CN214838614U (en) | Normally closed check valve | |
| CN2641403Y (en) | Tube clamping valve controlled by man power or electricity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20141114 |
|
| EXPY | Termination of patent right or utility model |