CN100422611C - Unloading one-way valve of air compressor - Google Patents
Unloading one-way valve of air compressor Download PDFInfo
- Publication number
- CN100422611C CN100422611C CNB2005100277053A CN200510027705A CN100422611C CN 100422611 C CN100422611 C CN 100422611C CN B2005100277053 A CNB2005100277053 A CN B2005100277053A CN 200510027705 A CN200510027705 A CN 200510027705A CN 100422611 C CN100422611 C CN 100422611C
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- Prior art keywords
- air
- active chamber
- connecting rod
- spool
- inlet cavity
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- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000012856 packing Methods 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 241000239226 Scorpiones Species 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001077 hypotensive effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
This invention is a kind of unloading one-way valve of compressor. It includes valve body and air intake pipe joint; air intake cavity and working cavity inside of valve body; air intake cavity communicates with air intake joint; the upside of air intake cavity is arranged with washer and rubber pressing sealing piece. The rubber-pressing sealing piece has down-convex cone-shaped rubber sealing hoop; the washer has unloading opening; there are spool and dish-shaped rubber sealing piece inside of working cavity; the connecting rod, which cuts through dish-shaped rubber sealing piece, air intake cavity, rubber pressing sealing piece and washer in turn and protrudes out of unloading opening, is connected with spool; the upper end face of working cavity is set with sealing convex ring. The working cavity torus has ventilating groove and air intake groove; the connecting rod has air-discharging groove. There is spacing piece at the top end of connecting rod. This invention can automatically control compressor to feed air in one way. When the machine is stop, the compressor is automatically unloaded.
Description
Technical field
The present invention relates to a kind of engineering element and parts, the unloading one-way valve of parts, particularly a kind of air compressor on especially a kind of air compressor.
Background technique
At present both at home and abroad to air displacement 1m
3Following moving of/min drags micro-air compressor in the formula, normally adopt Pnenmatic automatic switch to control and regulate exhaust pressure, arrived rated pressure, motor can shut down under the control of baroswitch automatically, and the differential pressure range that surpasses baroswitch can start again automatically.Look as if energy-conservation, in fact can not because: 1, frequent starting, the electric motor starting electric current is very big; 2, poor for the natural pressure that overcomes baroswitch, Compressor Discharge Pressure must surpass the 0.25-035/MPa of equipment Minimum requirements pressure, and this superpressure running also is that the compressor air-discharging resistance is big, back pressure is big, power consumption is big, the heating carbon deposit, causes the fundamental cause of mechanical deterioration.And be 1.2-3m to air displacement
3/ min air compressor greatly should not be used pneumatic recloser with Electric Traction because of power, and the Diesel Driven air compressor all is to have run to rated pressure continuously must off-load reduce pressure.
For this reason, some air compressor adopts a kind of unloading one-way valve to carry out off-load, as notice of authorization number is the disclosed a kind of air compressor sliding valve style unloading one-way valve of patent of invention specification of CN 2199389Y, it comprises valve body, air-inlet cavity and outlet chamber are arranged in the valve body, the valve element is housed on the body wall of air-inlet cavity and outlet chamber intersection, the pressure regulator valve unloading valve component is housed on the valve body in addition, also have the off-load relief opening on the valve body.This air compressor sliding valve style unloading one-way valve is used on the miniature press and can substitutes Pnenmatic automatic switch, can pilot pressure again can off-load, and pressure difference is little, power consumption is little, and working conditions of compressor is improved, off-load is thorough.The valve gap of its one-way valve part has leading role, cooperates with bowl type or column type valve block, needs only that the gap is suitable buffering, throttling hypotensive effect again, can make impact noise also low, and valve block is not fragile, and the life-span is long.Because of having the throttling hypotensive effect, the instantaneous pressure in the valve gap pilot hole is lower than the gas receiver internal pressure, so back pressure is little.Be used for 1.2-3m
3On/min the air compressor, simpler than original structure, rationally.
But the claimant thinks, existing unloading one-way valve, comprise above-mentioned air compressor sliding valve style unloading one-way valve, the one, its structure is more complicated all, and used components and parts are more, removes one-way valve, also have the auxiliary copper conduit to be connected with mechanical lever switch complexity etc., the 2nd, function singleness can only be controlled air-flow and flow to a direction, and air pressure reaches that could to pass through the mechanical lever switch in limited time disappointing.The 3rd, make and the maintenance cost height, the 4th, when disorderly closedown air pressure reaches in limited time, compressor cylinder to the pressurized gas that one-way valve connects can not be drained, if need start shooting the time again, manual operations disappointing, as deals with improperly, can damage motor and compressor.
Summary of the invention
Technical problem to be solved by this invention provides a kind of unloading one-way valve of air compressor, and it can control the unidirectional air inlet of air compressor effectively automatically and hold one's breath with less components and parts and simple structure also can automatic vent off-load under the situation that reaches the shutdown of the air pressure upper limit and air compressor.
The present invention wants the technical solution problem to be achieved through the following technical solutions:
A kind of unloading one-way valve of air compressor comprises a valve body, and valve body lower portion has an outside thread outward, and a suction tude joint is arranged at valve body top; It is characterized in that: in valve body, be provided with the air-inlet cavity and the active chamber that are positioned on the same axis and connect successively from top to down; Air-inlet cavity communicates with the suction tude joint; The urgent Sealing of packing ring and rubber is installed in air-inlet cavity top with overlaying state up and down, has protruding cone rubber sealing hoop down on the urgent Sealing of described rubber; One off-load mouth is arranged on the center hole wall of packing ring; Spool is arranged in the active chamber and be installed in the dish-shaped rubber seal that fluctuates with spool on the spool upper-end surface; Be connected with on the spool and upwards pass dish-shaped rubber seal, air-inlet cavity, the urgent Sealing of rubber and the center hole of packing ring and the connecting rod that stretches out successively, connecting rod fluctuates with spool; Be provided with in the upper-end surface of active chamber and cooperate the sealing bulge loop that seals with dish-shaped rubber seal, have a ventilation groove and some air inlet ducts on axially at active chamber anchor ring upper edge active chamber anchor ring; On connecting rod anchor ring upper edge connecting rod anchor ring is axial, have disappointing groove and one bounding means is housed on the top of connecting rod.
A ventilation groove and some air inlet ducts on the active chamber anchor ring of the present invention are uniform on anchor ring, and extend to the upper-end surface of active chamber on the ventilation groove, and the upper end of air inlet duct is not along the upper-end surface to active chamber.
Air-inlet cavity of the present invention and active chamber are the cylindrical hole shape, and the diameter of active chamber is greater than the diameter of air-inlet cavity, and the diameter of air-inlet cavity is greater than the diameter of connecting rod.
Be slidingly matched between spool of the present invention and dish-shaped rubber seal and the active chamber anchor ring, be slidingly matched between the center hole hole wall of connecting rod and packing ring and the urgent Sealing of rubber.
Before the start, the one-way valve on the former air compressor is not removed, again valve body of the present invention is spun on the air compressor air storage tank, and connects the suction tude of compressor.During start, there is pressurized air to enter in the air-inlet cavity and forces spool to move down together with connecting rod by the suction tude joint, disappointing groove on the connecting rod is retracted in the active chamber, simultaneously under the effect of air pressure, cone rubber sealing hoop on the urgent Sealing inwardly shrinks, hold tightly on connecting rod tightly, thereby the off-load mouth is closed.At this moment the pressurized air in the air-inlet cavity enters air compressor air storage tank continuously by ventilation groove on the active chamber anchor ring and air inlet duct, is work service.
When air compressor air storage tank pressure reaches the rated pressure shutdown, under the gas pressure of spool in air compressor air storage tank, spool and dish-shaped rubber seal are upwards floated.When floating to limit position on the spool, dish-shaped rubber seal tightly is pressed on the sealing bulge loop on the active chamber upper-end surface, is in the hermetically closing state between active chamber and the air-inlet cavity thereby make.Spool upwards floats, and then it is up to promote connecting rod, makes disappointing groove on the connecting rod with off-load mouth and air-inlet cavity conducting, at this moment compressor between the present invention and the pressurized air in the pipeline of the present invention by the disappointing groove on the connecting rod through the discharge of off-load mouth, reach the off-load effect.
The present invention has the unidirectional air inlet of automatic control air compressor, the function of holding one's breath, and the pressurized air of automatic deloading compressor to the pipeline of the present invention during shutdown guarantees that motor and compressor are not subjected to the airload effect, is easy to reset and use continuously.Simultaneously also protect the machine protected from wear, prolong its working life.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
View when Fig. 3 is off-load of the present invention.
Embodiment
Below further specify the present invention by embodiment, but should be understood that following embodiment is exemplary, the present invention does not limit to this.
Referring to Fig. 1 and Fig. 2, a kind of unloading one-way valve of air compressor, comprise a valve body 1, valve body 1 outer bottom is provided with the outside thread 2 that is connected with air compressor air storage tank or scorpion formula inflating pump joint, be provided with a suction tude joint 3 that is connected as a single entity with valve body 1 on the top of valve body 1, suction tude joint 3 is connected with compressor by the outside thread 18 on it; The middle part is provided with to be convenient to unloading one-way valve is installed in air compressor air storage tank or the just hexagonal end face l9 on the scorpion formula inflating pump joint.
In valve body 1, be provided with the air-inlet cavity 16 and the active chamber 6 that are positioned on the same axis and connect successively from top to down; Inlet hole 7 in the suction tude joint 3 communicates with air-inlet cavity 5.Air-inlet cavity 16 is on the same vertical axis with active chamber 6.Inlet hole 7 in the suction tude joint 3 communicates in oblique crossing mode with air-inlet cavity 5.
Air-inlet cavity 16 and active chamber 6 are the cylindrical hole shape, and the diameter of active chamber 6 is greater than the diameter of air-inlet cavity 16.
With overlaying state up and down packing ring 14 is housed on air-inlet cavity 16 tops and has the urgent Sealing 15 of rubber of protruding down cone rubber sealing hoop 20 on it; One off-load mouth 17 is arranged on the center hole wall of packing ring 14.
The spool 8 that can fluctuate is arranged in the active chamber 6 and be installed in the dish-shaped rubber seal 9 that fluctuates with spool 8 on spool 8 upper-end surfaces; Be slidingly matched between spool 8 and dish-shaped rubber seal 9 and active chamber 6 anchor rings.Be provided with dish-shaped rubber seal 9 in the upper-end surface of active chamber 6 and cooperate the sealing bulge loop 4 that seals, when floating to limit position on the spool 8, dish rubber seal 9 tightly is pressed on the sealing bulge loop 4, makes to constitute a sealing effectively between dish-shaped rubber seal 9 and the sealing bulge loop 4.And when dish-shaped rubber seal 9 leaves sealing bulge loop 4, be to constitute sealing, and be in open state.Can in air compressor air storage tank, charge into work gas as required if decide like this.
Have in uniform way along anchor ring axial a ventilation groove 5 and three air inlet ducts 12 at active chamber 6 anchor rings, ventilation groove 5 upper ends extend to the upper-end surface of active chamber 6, and the upper end of air inlet duct 12 is not along the upper-end surface to active chamber 6.The purpose of doing like this is that spool 8 can get off at once when compressor is started shooting, and gas can be entered in the air compressor air storage tank soon, improves Security of the present invention.
The width and the degree of depth of ventilation groove 5 and air inlet duct 12 can determine that this is not difficult to those skilled in the art according to the power of compressor and the factors such as volume of air compressor air storage tank.
Be connected with center hole that upwards passes dish-shaped rubber seal 9, air-inlet cavity 16, the urgent Sealing 15 of rubber and packing ring 14 successively and the connecting rod 10 that stretches out off-load mouth 17 on the spool 8, the diameter of air-inlet cavity 16 is greater than the diameter of connecting rod 10, and connecting rod 10 fluctuates with spool 8.Be slidingly matched between the center hole hole wall of connecting rod 10 and packing ring 14 and the urgent Sealing 15 of rubber.
On the anchor ring of connecting rod 10, have a location nut 13 is housed along the axial disappointing groove 11 of anchor ring and on the top of connecting rod 10.This positioning screw cap 13 is the bounding means of a connecting rod 10, the following pan position of limiting rod 10 and spool 8.
Referring to Fig. 3, during off-load, float to limit position on the spool 8, dish-shaped rubber seal 9 tightly is pressed on the sealing bulge loop 4 on active chamber 6 upper-end surfaces, is in the hermetically closing state thereby make between active chamber 6 and the air-inlet cavity 16.Spool 8 upwards floats, and then it is up to promote connecting rod 10, make disappointing groove 11 on the connecting rod 10 with off-load mouth 17 and air-inlet cavity 16 conductings, at this moment compressor between the present invention and the pressurized air in the pipeline of the present invention discharge through off-load mouth 17 by the disappointing groove 11 on the connecting rod 10, reach the off-load effect.
Claims (4)
1. the unloading one-way valve of an air compressor comprises a valve body, and valve body lower portion has an outside thread outward, and a suction tude joint is arranged at valve body top; It is characterized in that: in valve body, be provided with the air-inlet cavity and the active chamber that are positioned on the same axis and connect successively from top to down; Air-inlet cavity communicates with the suction tude joint; The urgent Sealing of packing ring and rubber is installed in air-inlet cavity top with overlaying state up and down, has protruding cone rubber sealing hoop down on the urgent Sealing of described rubber; One off-load mouth is arranged on the center hole wall of packing ring; Spool is arranged in the active chamber and be installed in the dish-shaped rubber seal that fluctuates with spool on the spool upper-end surface; Be connected with on the spool and upwards pass dish-shaped rubber seal, air-inlet cavity, the urgent Sealing of rubber and the center hole of packing ring and the connecting rod that stretches out successively, connecting rod fluctuates with spool; Be provided with in the upper-end surface of active chamber and cooperate the sealing bulge loop that seals with dish-shaped rubber seal, have a ventilation groove and some air inlet ducts on axially at active chamber anchor ring upper edge active chamber anchor ring; On connecting rod anchor ring upper edge connecting rod anchor ring is axial, have disappointing groove and one bounding means is housed on the top of connecting rod.
2. the unloading one-way valve of a kind of air compressor according to claim 1, it is characterized in that: a ventilation groove and some air inlet ducts on the described active chamber anchor ring are uniform on anchor ring, and ventilation groove upper end extends to the upper-end surface of active chamber, and the upper end of air inlet duct is not along the upper-end surface to active chamber.
3. the unloading one-way valve of a kind of air compressor according to claim 1 and 2, it is characterized in that: air-inlet cavity and active chamber are the cylindrical hole shape, and the diameter of active chamber is greater than the diameter of air-inlet cavity, and the diameter of air-inlet cavity is greater than the diameter of connecting rod.
4. the unloading one-way valve of a kind of air compressor according to claim 1 is characterized in that: be slidingly matched between spool and dish-shaped rubber seal and the active chamber anchor ring, be slidingly matched between the center hole hole wall of connecting rod and packing ring and the urgent Sealing of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100277053A CN100422611C (en) | 2005-07-13 | 2005-07-13 | Unloading one-way valve of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100277053A CN100422611C (en) | 2005-07-13 | 2005-07-13 | Unloading one-way valve of air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1896574A CN1896574A (en) | 2007-01-17 |
| CN100422611C true CN100422611C (en) | 2008-10-01 |
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ID=37609161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100277053A Expired - Fee Related CN100422611C (en) | 2005-07-13 | 2005-07-13 | Unloading one-way valve of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100422611C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2631178C1 (en) * | 2016-10-19 | 2017-09-19 | Павел Анатольевич Таран | Valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045802U (en) * | 1989-03-07 | 1989-10-11 | 包头市汽车空压机厂 | Vehicle air compressor unlade valve |
| US5950989A (en) * | 1997-05-29 | 1999-09-14 | Caterpillar Inc. | Valve interface having mismatched radii |
| JPH11311349A (en) * | 1998-04-28 | 1999-11-09 | Nabco Ltd | Hydraulic relief valve |
| US6189563B1 (en) * | 1999-07-15 | 2001-02-20 | Julian S. Taylor | Electronic pressure control pilot operated relief valve |
| CN1461902A (en) * | 2002-05-26 | 2003-12-17 | 李乐平 | Automatic pressure releasing valve |
| CN2802122Y (en) * | 2005-07-13 | 2006-08-02 | 詹奇峰 | Unloading one-way valve of air compressor |
-
2005
- 2005-07-13 CN CNB2005100277053A patent/CN100422611C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045802U (en) * | 1989-03-07 | 1989-10-11 | 包头市汽车空压机厂 | Vehicle air compressor unlade valve |
| US5950989A (en) * | 1997-05-29 | 1999-09-14 | Caterpillar Inc. | Valve interface having mismatched radii |
| JPH11311349A (en) * | 1998-04-28 | 1999-11-09 | Nabco Ltd | Hydraulic relief valve |
| US6189563B1 (en) * | 1999-07-15 | 2001-02-20 | Julian S. Taylor | Electronic pressure control pilot operated relief valve |
| CN1461902A (en) * | 2002-05-26 | 2003-12-17 | 李乐平 | Automatic pressure releasing valve |
| CN2802122Y (en) * | 2005-07-13 | 2006-08-02 | 詹奇峰 | Unloading one-way valve of air compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1896574A (en) | 2007-01-17 |
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| SE01 | Entry into force of request for substantive examination | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20090220 Address after: 1 building, 2 unit 1, Jian Xiang Village, Zhuhai district, Hengyang, Hunan Province: zip code: 421002 Co-patentee after: Zhang Yuxuan Patentee after: James peak Address before: Zhuhui District of Hunan province Hengyang City Hunan village 34 Building 2 unit 1 floor, zip code: 421002 Patentee before: Zhan Qifeng |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20130713 |