CN103206562A - Follow-up one-way valve, gas supply controlling mechanism and gas supply controlling method - Google Patents
Follow-up one-way valve, gas supply controlling mechanism and gas supply controlling method Download PDFInfo
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- CN103206562A CN103206562A CN2013101203475A CN201310120347A CN103206562A CN 103206562 A CN103206562 A CN 103206562A CN 2013101203475 A CN2013101203475 A CN 2013101203475A CN 201310120347 A CN201310120347 A CN 201310120347A CN 103206562 A CN103206562 A CN 103206562A
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Abstract
The invention discloses a follow-up one-way valve, a gas supply controlling mechanism and a gas supply controlling method, and belongs to the field of manual gas pressurization. The follow-up one-way valve comprises a one-way valve base body, an O-shaped sealing ring, a combined sealing piece and a threaded compression ring. The O-shaped sealing ring is sleeved in a groove arranged at the front end of the one-way valve base body, the combined sealing piece is assembled in the one-way valve base body, and the threaded compression ring is screwed in the one-way valve base body and compresses the combined sealing piece. The gas supply controlling mechanism comprises a body part which relatively moves and a shaft part which is coaxially arranged in the body part. The follow-up one-way valve moves along with the axial movement of the shaft part, the front end of the front end of the follow-up one-way valve is matched with a conical surface of the inner wall of an gas inlet end of the body part and closed or opened along with the movement, and thereby supply controlling of gas is realized. The follow-up one-way valve is compact in structure and convenient to use, the gas supply controlling mechanism is small in size, simple in composition, and efficient in gas supply, so that the follow-up one-way valve and the gas supply controlling mechanism are convenient to operate in gas supply and applicable to equipment with wide gas pressure range, especially equipment for multiple times of pressurization.
Description
Technical field
The present invention is applicable to that manual gas makes pressure equipment, particularly adopts multistage booster body to make the one-way valve structures of using in the pressurized gas pump, also relates to mechanism and the method for using this one-way valve control gas to be communicated with or to end.
Background technique
In pressure instrument verification industry, generally adopt gas to make press pump, pressure equipment is made in the calibration operation that is used for the pressure measurement utensil.The gas pump in past all is that one-level is made pressure, by compression than restriction, can only produce lower pressure, and along with industrial development and development of technology, the pressure that present industrial pressure facility bears is more and more higher, pressure monitoring gauge pressure corresponding carry supporting with it.In the pressure instrument checking procedure, gas is made and pressed is that comparison is clean, environmental protection, and what do not have that liquid brings pollutes environment and pressure system, so it is also more and more stronger to examine and determine the pressure instrument demand with pressurized gas.The claimant had once developed repeatedly supercharging hand air pump in the case, produced high pressure with little strength, but was assemblied in traditional one-way valve that is wherein, need provide the mode of installing and sealing separately, tend to occur the product structure complexity, installation volume is bigger than normal, problems such as reliability reduction.
Summary of the invention
The object of the invention is to provide a kind of compact structure, servo-actuated one-way valve easy to use, and the volume that utilizes this one-way valve is little, constitute simple, connected sum cutoff performance gas break-make control structure efficiently, and provide a kind of gas break-make controlling method of being convenient to operate.
A kind of servo-actuated one-way valve of the present invention, comprise one-way valve matrix, O RunddichtringO, combination seal and threaded pressure ring, wherein: described one-way valve matrix is ring hat formula, be divided into base portion, connect base portion along portion and spiro union portion, base portion and be male cone (strobilus masculinus) along the portion joint is established the groove of semicircle on the conical surface; Combination seal is made up of elastic seal ring and wear-resisting outer seal ring, and outer seal ring is divided into thick bottom and thin neck, and elastic seal ring is sleeved on thin neck; Combination seal be contained in base portion in the one-way valve matrix and the groove formed along portion in, and outer seal ring is tight against base portion; Threaded pressure ring screws in the matrix from the spiro union portion of one-way valve matrix, and threaded pressure ring contacts with elastic seal ring, compresses combination seal by being spirally connected; The O RunddichtringO is inserted in the set groove of one-way valve matrix front end.
A kind of gas break-make of the present invention control mechanism, the airframe components and the coaxial axle base part that is placed in one that comprise relative movement, wherein, aforementioned servo-actuated one-way valve is assemblied in the axial motion hermetic unit of a base part, and the servo-actuated one-way valve outside is gapped with the airframe components inwall; The inlet end inwall of airframe components is designed to the awl fitting surface that matches with described one-way valve matrix front end male cone (strobilus masculinus), and in the exhaust end inwall of an airframe components mechanism that limits.
Described position-limit mechanism is for to establish hole jump ring groove at the exhaust end inwall of airframe components, and wherein lock is equipped with the spacing spring jump ring of using.
The awl fitting surface concentric of described one-way valve matrix front end male cone (strobilus masculinus) and airframe components.
A kind of gas break-make of the present invention controlling method, use aforementioned gas break-make control mechanism, may further comprise the steps: the Control Shaft base part is to the inlet end direction motion of airframe components, make the awl fitting surface of the seal ring compactor body component on the servo-actuated one-way valve front end male cone (strobilus masculinus), inlet end and the exhaust end of airframe components are obstructed, and gas circuit disconnects;
The Control Shaft base part is to the exhaust end direction motion of airframe components, servo-actuated one-way valve front end male cone (strobilus masculinus) is separated with the awl fitting surface of airframe components, the inlet end of airframe components and exhaust end are communicated with, and gas can flow from the gap between servo-actuated one-way valve and the airframe components from inlet end to exhaust end.
In this gas break-make controlling method, axle base part and airframe components distance of relative movement, the distance of control between the awl fitting surface that is less than or equal to airframe components and position-limit mechanism.
Adopt above scheme, the invention provides a kind of servo-actuated one-way valve of high pressure that transmits stressed moving element moved in coaxial, restriction amount of movement reliability that is integrated in, the frictional force of sliding between Sealing and parts when it utilizes moved in coaxial, one-way valve ends with the moving direction control gas connected sum of force-transmitting member.One-way valve is opened, closed to one-way valve reliably along with the moving direction of stressed output block changes, and makes for air pressure that die pressing product improves the life-span and reliability is revolutionary change.
Gas break-make control structure can be saved the space, reduces part and uses, and has simplified overall structure, improves global reliability; Because its one-way valve under no pressure condition is communicated with or ends, make pressing system and can also produce high vacuum.
Servo-actuated one-way valve has overcome traditional one-way valve and has relied on elastic reset to end, structure can produce certain back pressure problems, the certain pressure of tradition one-way valve needs overcomes elastic force and opens one-way valve, it is cut-off state when the pressure of gas can not promote one-way valve always, servo-actuated one-way valve can move according to parts and carry out connected sum by gas flow control, when being used for air pump, can improve and make pressure efficient, one-way valve control is mobile in certain scope, all parts can be the state of a controls that needs, and reliability is higher than traditional one-way valve far away.
Description of drawings
Fig. 1 is the servo-actuated one-way valve structures sectional drawing of the present invention (demonstration cut-off state);
Fig. 2 is one-way valve base structure figure;
Fig. 3 is the combination seal structural drawing;
Fig. 4 is the servo-actuated one-way valve connected state of the present invention and airflow route sectional drawing.
The critical piece label is among the figure: 01. airframe components; 02. threaded pressure ring; 03. one-way valve matrix; 04. seal ring; 05. axle base part; 06. combination seal; 07. hole spring jump ring.
Embodiment
Mentality of designing of the present invention is: sealing is opened or closed during reversing motion to gas unidirectional flow control valve (abbreviation one-way valve) in the space that limits with two parts of relative movement, one-way valve and one of them parts integrate, and therefore are called by " servo-actuated one-way valve "; One-way valve inside has combination seal that gas exchange in relative movement part both sides is kept apart, the conical surface is made in the outside, in the groove of the conical surface, add seal ring, the conical surface can prevent that seal ring from coming off, after having the one-way valve center endoporus of combination seal to pass one of them relative movement part, put into the hole of another relative movement part and one-way valve cone match again, with the displacement distance of hole with spring jump ring (or other position-limit mechanisms) restriction one-way valve, so just formed a servo-actuated one-way valve.When relative movement part moved to the cone match closing direction, closed check valve because also there is combination seal inside, had stoped gas to flow to moving direction; When moving away from cone match, the seal ring of cone match produces the gap, and side pressurized gas can flow to the component movement direction, have so just finished the unidirectional function of ending of gas flow.The present invention is by the integrated mode of one-way valve and moving element, change traditional one-way valve and compress sealing means by the elastic material application of force, integrate by one-way valve and moving element simultaneously, can come out the transmission of power of the needs of the gas flow both sides of needs control, use same axial motion, control different movement travels, finish the transmission of the mobile control of gas unidirectional and power, one-way valve also can opening and closing in the time of can accomplishing not have pressure.The present invention can be used for the wideer equipment of gas pressure scope, repeatedly in the equipment of supercharging, is a kind of brand-new one-way valve pattern particularly.
The present invention is in two parts of relative movement, utilize the axle base part at the integrated servo-actuated one-way valve of axial motion hermetic unit, one-way valve and another parts are formed the one-way valve conical seal (contact) face, control one-way valve according to the change of axle direction of relative movement and move, and form connected sum by two states; The combination seal of one-way valve inside and the slipper seal of axle between base part have formed the sealing between two parts, are integrated in the servo-actuated one-way valve of a base part by another component limitations mobile position.
Describe in detail below in conjunction with accompanying drawing:
Servo-actuated one-way valve structures provided by the invention such as Fig. 1, shown in Figure 4 comprise one-way valve matrix 03, O RunddichtringO 04, combination seal 06 and threaded pressure ring 02, wherein:
One-way valve matrix 03 structure is referring to Fig. 2, is ring hat formula, be divided into base portion 32, connect base portion along portion 31 and spiro union portion 33, base portion 32 is male cone (strobilus masculinus) with the front end that is connected along portion 31, establishes the groove 34 of semicircle on the conical surface;
Threaded pressure ring 02 screws in the matrix 03 from the spiro union portion 33 of one-way valve matrix 03, and threaded pressure ring 06 contacts with elastic seal ring 61, compresses combination seal 06 by being spirally connected;
O RunddichtringO 04 is inserted in the set groove 34 of one-way valve matrix 03 front end.
Form one-way valve structures of the present invention by above each parts assembling.
In the use, this one-way valve need be assembled to earlier on the class follower, from the axle base part 05 of follower one end (exhaust end Fig. 1) of chamfering is arranged, the end (exhaust end) of one-way valve center hole from the band combination seal penetrated, so just one-way valve is installed on the follower.One-way valve and follower together are assemblied in the airframe components 01 interior (as an air communicating pipe) of another relative movement, indicate as Fig. 1 and Fig. 4, the inwall of the inlet end of airframe components 01 is designed to the awl fitting surface 11 that matches with one-way valve matrix 03 front end male cone (strobilus masculinus), when relatively moving, one-way valve matrix 03 front end male cone (strobilus masculinus) can compress (as Fig. 1) or separation (as Fig. 4) with respect to the awl fitting surface 11 of matrix part 01 axially (being shown as substantially horizontal among Fig. 1) when one-way valve and follower and airframe components 01.
Among the present invention, the structure of airframe components 01 and servo-actuated one-way valve have the awl fitting surface, the axle base part 05 of putting on servo-actuated one-way valve is assembled together by illustrating the situation that can satisfy cone match together, with hole jump ring instrument the hole is indicated referring to Fig. 4 with the jump ring groove 12(that spring jump ring 07 is locked in airframe components 01) in, finish the assembling of servo-actuated one-way valve, axle base part and airframe components integral body, formed a kind of novel gas break-make control mechanism.In this gas break-make control mechanism, with spring jump ring 07(or other limit position part) servo-actuated one-way valve is limited in certain position of airframe components mobile, when airframe components and the relative movement of axle base part, because it is mobile in the scope of restriction that outer seal ring 62 and axle base part 05 sealing place frictional force drive one-way valve, axle base part 05 and airframe components 01 change moving direction, and the O RunddichtringO 04 on the one-way valve conical surface can compress with the awl fitting surface of airframe components 01 or separate; Seal ring 62 and axle base part 05 transmit with motion effectively, and the effect of one-way valve has simultaneously also been finished.
Among the present invention, servo-actuated one-way valve is limited in the airframe components, and is mobile in certain scope, and the spring jump ring of placing in the airframe components (or other spacing part) is limited in one-way valve in jump ring and the awl fitting surface scope mobile; When the axle base part was pressed the different direction motion, one-way valve was because the frictional force effect is also mobile in this scope with the axle base part, and the rapid connected sum that forms one-way valve like this ends.
Among the present invention, between the airframe components of described one-way valve and relative movement certain clearance to be arranged; The conical seal (contact) face that cooperates has circular groove at the one-way valve conical seal (contact) face, and seal ring can not come off after placing, and one-way valve drive seal ring is mobile together like this.When taper fit emaciated face evolution between one-way valve and airframe components to when motion, seal ring is also mobile, produces gas flow channel, compresses seal ring when oppositely moving and forms sealing and end.
One-way valve and the coaxial installation of axle base part, the sealing surface that airframe components cooperates with one-way valve is also wanted concentric, and the axle base part carries out axial motion, drives one-way valve and moves.
Fig. 1 is state when compressing one-way valve and cooperate conical surface direction to move (shown in arrow among Fig. 1) when axle base part 05 moving direction, seal ring 04 on the one-way valve matrix 03 front end male cone (strobilus masculinus) has compressed the awl fitting surface of airframe components 01 at this moment, inlet end and the exhaust end of airframe components 01 are obstructed, and gas circuit is cut off; Fig. 4 is state when leaving one-way valve and cooperate conical surface direction to move (shown in Fig. 4 axis base part upward arrow) when axle base part 05 moving direction, one-way valve matrix front end male cone (strobilus masculinus) separates with the awl fitting surface of airframe components 01, the inlet end of airframe components 01 and exhaust end are communicated with, gas can flow from the gap between one-way valve and the airframe components 01 from inlet end to exhaust end, and the short arrow of Fig. 4 has been represented direction and the path of gas flow.By be integrated in like this servo-actuated one-way valve on the parts just finished gas circuit logical, end function.
Therefore, the invention provides a kind of gas is communicated with or cut-off method, in two parts of relative movement, utilization axle base part 05 wherein is at the integrated described servo-actuated one-way valve of axial motion hermetic unit, one-way valve and another airframe components 01 are formed the one-way valve conical seal (contact) face, change control one-way valve by the axle direction of relative movement moves, and forms connected sum by two states.Be integrated in the servo-actuated one-way valve of a base part 05 by the spring jump ring 07 restriction mobile position on the airframe components 01.
Among the present invention, one-way valve inner with a base part between dose combination seal and compressed by threaded pressure ring, when the axle base part moved, one-way valve can be moved together by the frictional force that combination seal brings, also can slide to each other, but its slip surface seals.
Servo-actuated one-way valve of the present invention can be used for manually making press pump repeatedly in the pressure structure, integrates coaxial movement with transmission part, no longer takies other spatial volume, thereby has reduced the volume of integral device; The one-way valve action is controlled in addition, has improved reliability, has eliminated the problem that one-way valve lost efficacy; One-way valve moves with moving element and finishes namely that it is unidirectional by function, improved make pressing system make pressure efficient, do not need to overcome certain one-way valve breakout pressure and certain back pressure of producing.
The present invention has following characteristics:
1. servo-actuated one-way valve is integrated in parts sealing place of two relative movement, does not account for other volume.
2. axle base part axle and servo-actuated unidirectional valve member have combination seal generation frictional force drive one-way valve to move, and slide to each other, and the one-way valve state is only relevant with axle base part direction of relative movement.
3. servo-actuated one-way valve state can be controlled, and its reliability can improve greatly, can accomplish non-maintaining state.
4. need not pressure and just can be communicated with, end one-way valve, do not have the residual pressure influence, gas flow efficient can be very high, directly improves the efficient of entire product.
Servo-actuated one-way valve and the axle base part integrate, install simple and reliable, all on a positioning shaft.
6. part is less, just adds the taper fit all-moving surface in original parts sealing place, and fabricating cost is lower.
7. cone match adds O RunddichtringO structure, good sealing effect during servo-actuated one-way valve low pressure, and it is little to compress the gap during high pressure, so this one-way valve can bear elevated pressures.
8. because servo-actuated one-way valve drives its state by moving element, can produce higher vacuum, kill two birds with one stone.
Claims (6)
1. a servo-actuated one-way valve is characterized in that, comprises one-way valve matrix, O RunddichtringO, combination seal and threaded pressure ring, wherein:
Described one-way valve matrix is ring hat formula, be divided into base portion, connect base portion along portion and spiro union portion, base portion and be male cone (strobilus masculinus) along the portion joint is established the groove of semicircle on the conical surface;
Combination seal is made up of elastic seal ring and wear-resisting outer seal ring, and outer seal ring is divided into thick bottom and thin neck, and elastic seal ring is sleeved on thin neck; Combination seal be contained in base portion in the one-way valve matrix and the groove formed along portion in, and outer seal ring is tight against base portion;
Threaded pressure ring screws in the matrix from the spiro union portion of one-way valve matrix, and threaded pressure ring contacts with elastic seal ring, compresses combination seal by being spirally connected;
The O RunddichtringO is inserted in the set groove of one-way valve matrix front end.
2. gas break-make control mechanism, the airframe components and the coaxial axle base part that is placed in one that comprise relative movement, it is characterized in that the described servo-actuated one-way valve of claim 1 is assemblied in the axial motion hermetic unit of a base part, and the servo-actuated one-way valve outside is gapped with the airframe components inwall; The inlet end inwall of airframe components is designed to the awl fitting surface that matches with described one-way valve matrix front end male cone (strobilus masculinus), and in the exhaust end inwall of an airframe components mechanism that limits.
3. according to the described gas break-make of claim 2 control mechanism, it is characterized in that described position-limit mechanism is for to establish hole jump ring groove at the exhaust end inwall of airframe components, wherein lock is equipped with the spacing spring jump ring of using.
4. according to claim 2 or 3 described gas break-make control mechanisms, it is characterized in that the awl fitting surface concentric of one-way valve matrix front end male cone (strobilus masculinus) and airframe components.
5. a gas break-make controlling method is characterized in that, right to use requires 2 or 3 or 4 described gas break-make control mechanisms, may further comprise the steps:
The Control Shaft base part makes the awl fitting surface of the seal ring compactor body component on the servo-actuated one-way valve front end male cone (strobilus masculinus) to the inlet end direction motion of airframe components, and inlet end and the exhaust end of airframe components are obstructed, and gas circuit disconnects;
The Control Shaft base part is to the exhaust end direction motion of airframe components, servo-actuated one-way valve front end male cone (strobilus masculinus) is separated with the awl fitting surface of airframe components, the inlet end of airframe components and exhaust end are communicated with, and gas can flow from the gap between servo-actuated one-way valve and the airframe components from inlet end to exhaust end.
6. according to claims 5 described gas break-make controlling methods, it is characterized in that axle base part and airframe components distance of relative movement, the distance of control between the awl fitting surface that is less than or equal to airframe components and position-limit mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310120347.5A CN103206562B (en) | 2013-04-09 | 2013-04-09 | Follow-up one-way valve, gas supply controlling mechanism and gas supply controlling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310120347.5A CN103206562B (en) | 2013-04-09 | 2013-04-09 | Follow-up one-way valve, gas supply controlling mechanism and gas supply controlling method |
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| CN103206562A true CN103206562A (en) | 2013-07-17 |
| CN103206562B CN103206562B (en) | 2014-12-10 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4212781A1 (en) * | 1992-04-16 | 1993-10-21 | Stiebel Eltron Gmbh & Co Kg | Non=return valve for warm water unit - has chamber downstream of valve with venturi tube moderating pressure surge and holding valve open. |
| JP2005291409A (en) * | 2004-04-01 | 2005-10-20 | Tokyo Gas Co Ltd | Check valve |
| CN101520100A (en) * | 2008-02-29 | 2009-09-02 | 浙江三花股份有限公司 | One-way control valve |
| WO2009136142A1 (en) * | 2008-05-06 | 2009-11-12 | Halliburton Energy Services, Inc | Multiple piece frac valve insert |
| CN101871539A (en) * | 2010-07-08 | 2010-10-27 | 厦门松霖科技有限公司 | Magnetic check valve |
| CN201894793U (en) * | 2010-11-25 | 2011-07-13 | 西安新竹防灾救生设备有限公司 | Drip-proof check valve used in water mist fire extinguishing system |
| CN102207215A (en) * | 2010-12-23 | 2011-10-05 | 厦门松霖科技有限公司 | Water-saving non-return valve |
| CN202327256U (en) * | 2011-11-19 | 2012-07-11 | 珠海市名实陶瓷阀有限公司 | Constant-flow non-return valve |
| RU2473830C1 (en) * | 2012-02-20 | 2013-01-27 | Сергей Максимович Янгареев | Plunger pump valve |
| CN203248786U (en) * | 2013-04-09 | 2013-10-23 | 北京康斯特仪表科技股份有限公司 | Follow-up one-way valve and gas on-off control mechanism |
-
2013
- 2013-04-09 CN CN201310120347.5A patent/CN103206562B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4212781A1 (en) * | 1992-04-16 | 1993-10-21 | Stiebel Eltron Gmbh & Co Kg | Non=return valve for warm water unit - has chamber downstream of valve with venturi tube moderating pressure surge and holding valve open. |
| JP2005291409A (en) * | 2004-04-01 | 2005-10-20 | Tokyo Gas Co Ltd | Check valve |
| CN101520100A (en) * | 2008-02-29 | 2009-09-02 | 浙江三花股份有限公司 | One-way control valve |
| WO2009136142A1 (en) * | 2008-05-06 | 2009-11-12 | Halliburton Energy Services, Inc | Multiple piece frac valve insert |
| CN101871539A (en) * | 2010-07-08 | 2010-10-27 | 厦门松霖科技有限公司 | Magnetic check valve |
| CN201894793U (en) * | 2010-11-25 | 2011-07-13 | 西安新竹防灾救生设备有限公司 | Drip-proof check valve used in water mist fire extinguishing system |
| CN102207215A (en) * | 2010-12-23 | 2011-10-05 | 厦门松霖科技有限公司 | Water-saving non-return valve |
| CN202327256U (en) * | 2011-11-19 | 2012-07-11 | 珠海市名实陶瓷阀有限公司 | Constant-flow non-return valve |
| RU2473830C1 (en) * | 2012-02-20 | 2013-01-27 | Сергей Максимович Янгареев | Plunger pump valve |
| CN203248786U (en) * | 2013-04-09 | 2013-10-23 | 北京康斯特仪表科技股份有限公司 | Follow-up one-way valve and gas on-off control mechanism |
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|---|---|
| CN103206562B (en) | 2014-12-10 |
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Effective date of registration: 20220329 Address after: 102010 No. 1581 Kangxi Road, Badaling Economic Development Zone, Yanqing District, Beijing Patentee after: Beijing Sangpu Xinyuan Technology Co.,Ltd. Address before: 100085, Beijing, Haidian District on the road to the information on the 1st, No. 28, D building, block 5-6 Patentee before: BEIJING CONST INSTRUMENTS TECHNOLOGY Inc. |