CN101469786A - Non-return valve with valve housing - Google Patents
Non-return valve with valve housing Download PDFInfo
- Publication number
- CN101469786A CN101469786A CN 200710173772 CN200710173772A CN101469786A CN 101469786 A CN101469786 A CN 101469786A CN 200710173772 CN200710173772 CN 200710173772 CN 200710173772 A CN200710173772 A CN 200710173772A CN 101469786 A CN101469786 A CN 101469786A
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- valve
- valve body
- valve pocket
- spool
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Abstract
A check valve with a valve pocket, relating to the field of hydraulic control valve, comprises a valve body, a main hole is opened in the center of the valve body, the right end of the main hole of the valve body is sealedly fixed by using a screw plug, characterized in that, an oil inlet P1 and an oil outlet P2 are opened on the bottom of the valve body and communicated with the main hole, the valve pocket is arranged in the main hole, and between the oil inlet P1 and the oil outlet P2, the inner cavity of the valve pocket is arranged with a valve core the inner cavity of which is sleeved with a spring, one end of the spring is connected with the inner wall of the valve core, the other end of which is fixed on a spring base which is connected with the screw plug for sealing at the right end of the valve body. The check valve with a valve pocket has the beneficial effect that, due to connect the valve body and the valve core through the valve pocket, the impact vibration force is directly applied on the valve pocket, the impact vibration to the valve body is reduced, so the service life of the valve body is prolonged. The structure of the valve core is changed from the cone valve to cone pocket, the contact area in the movement process of the valve core is increased, thereby improving the movement stability of the valve core.
Description
Technical field:
The present invention relates to field of hydraulic control, specifically is a kind of board-like one-way valve of control oil channel one-way flow.
Background technique:
At present, traditional board-like one-way valve spool be the cone valve type structure, spool directly contacts with valve body, the cone valve head has greater impact and vibration to valve body, and reduced the working life of valve body.Exist bigger reducing ratio between tradition head of cone valve and conical valve stem, and cone valve shoulder place exists stress to concentrate, this stress concentration phenomenon can have influence on the working life of cone valve.Because traditional board-like one-way valve spool and valve body surface of contact are few, it is little to cause leading, and makes robust motion poor, so be not suitable for being applied in the frequent occasion of keying.
Summary of the invention:
Technical problem to be solved by this invention is to provide a kind of one-way valve that has valve pocket.
The present invention for the technological scheme that the technical solution problem adopts is:
A kind of one-way valve with valve pocket comprises valve body, the center of valve body has main aperture, the right-hand member of valve body main aperture plug screw sealing and fixing, it is characterized in that, have an oil inlet P 1 in the valve body bottom surface and an oil outlet P2 communicates with main aperture, centre at main aperture, between oil inlet P 1 and the oil outlet P2 valve pocket is installed, the inner chamber of valve pocket is equipped with spool, the inner chamber of spool is with spring, one end of spring is connected with the spool inwall, and the other end is fixed on the spring seat, and spring seat is connected with the plug screw that the valve body right-hand member is used to seal.
Described main aperture adopts the form of ladder blind hole, and main aperture is communicated with the circular bead surface internal diameter of filler opening less than the circular bead surface internal diameter that is communicated with oil outlet, and the circular bead surface of main aperture right-hand member is provided with screw thread and can be used to seal the swivel nut spiral that main aperture uses with the valve body right-hand member and joins;
Described oil inlet P 1 and oil outlet P2 and valve body bottom surface jointing are provided with seal ring, play the effect of sealing;
Describedly on valve pocket, a toroidal cavity is set with valve body main aperture surface of contact, place back-up ring and seal ring in the groove, between valve pocket and valve body inner wall of main hole, play the effect of sealing, contact with the oil sealing mouth of spool at valve pocket inner chamber circular bead surface place, and circular bead surface and oil sealing is salty closes.
Described valve body bottom surface is provided with two positioning holes, and locating stud is placed in the positioning hole, does the location and use when connecting other valve body;
Be with spring on the inner chamber of described spool, an end of spring contacts with spool, and the other end is placed in the positioning hole of spring seat, is fixed on the spring seat;
The described plug screw that is used for valve body right-hand member sealing, the plug screw outer installment has the threads engaged of screw thread and valve body right-hand member circular bead surface, and by seal ring and retaining ring sealing, assurance pressure oil does not leak and prevents that dust from entering at the jointing of plug screw and valve body.
The whole seal arrangement that adopts between described valve body and the valve pocket, one-way valve internal pressure oil can not leak in the time of can guaranteeing work.
The beneficial effect that the present invention produces is a kind of one-way valve with valve pocket, and valve body is connected by valve pocket with spool is middle, and this makes impact shock power directly act on the valve pocket, has reduced the impact shock to valve body, and the life-span of valve body has been strengthened.The structural type of spool also makes taper sleeve type into by cone valve type, and the surface of contact in the spool moving process is increased, and this has just improved the robust motion of spool.Because this valve flow resistance is little, through-current capacity is big, thus can satisfy the frequent working condition that closes that rises, owing to also adopting seal arrangement between valve pocket and the valve body, so the good airproof performance of valve leaks few.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a worm's eye view of the present invention;
Among the figure:
1-valve body; 2-the first main aperture shoulder hole; 3-the second main aperture shoulder hole; 4-back-up ring;
5-the first seal ring; 6-valve pocket; 7-spring; 8-the three main aperture shoulder hole; 9-spool;
10-plug screw; 11-spring seat; 12-aperture; 13-draining hole; 14-locating stud;
15-oil sealing mouth; 16-the second seal ring; 17-positioning hole.
Embodiment:
Below in conjunction with drawings and the specific embodiments the present invention is done further introduction:
Referring to Fig. 1, a kind of one-way valve with valve pocket comprises a valve body 1, in the centre of valve body 1 main aperture is arranged, main aperture adopts ladder blind hole form, has an oil inlet P 1 and an oil outlet P2 on the valve body bottom surface, and oil inlet P 1 and oil outlet P2 obtain by machining mode and communicate with main aperture.Joint with oil inlet and outlet P1, P2 on the valve body bottom surface guarantees that by 16 sealings of second seal ring pressure oil does not leak, shoulder place in the middle of the main aperture is equipped with valve pocket 6, valve pocket 6 is provided with back-up ring 4 and seal ring 5 with the circular bead surface of valve body main aperture, on valve body 1 bottom surface, make two positioning holes 17, locating stud 14 is placed in the positioning hole 17, makes location valve pocket 6 usefulness when connecting.Valve body 1 right-hand member is made shoulder, be used for the spacing of plug screw 10, matching thread is made on the right shoulder left side, be used for being threaded between valve body 1 and the plug screw 10, make plug screw 10 protrude valve body 1 after the connection, make things convenient for installing/dismounting, carry seal ring and back-up ring on the plug screw 10 and guarantee that pressure oil does not leak, prevent that simultaneously dust from entering.
Spool 9 is placed on the inner chamber of valve pocket 6, and oil sealing mouth 15 is positioned spool 9 at the left end small sircle hole shoulder place of valve pocket 6.Act directly on after pressure oil enters on the left side of spool 9, promote spool 9 and make its action.Make radially draining hole 13 at oil sealing mouth 15 right-hand members, make spool 9 pack into the back valve pocket 6 radially drain tap can also link up.Make a step blind hole in spool 9 right sides, aperture 12 connects with the draining hole 13 of spool 9, and the leakage oil of spring chamber can be discharged through the draining hole 13 of spool 9.The left side of macropore is the locating face of spring 7, utilizes spring force that spool 9 is positioned oil sealing mouth 15.The place is shaped on compensating groove near spool 9 right sides, has so not only improved robust motion and the minimizing impact shock of spool in movement process, can also shelter evil people and countenance evil practices simultaneously, prevents stuck.
Embodiment:
Explain as shown in Figure 1, when hydraulic oil flows into from the P1 mouth, when the P2 mouth flows out, illustrate board-like one-way valve and be in closed condition, drain tap 13 and oil outlet P2 link up, hydraulic oil enters from the P1 chamber, when oil liquid pressure was higher than the cracking pressure of spring 7, the cracking pressure that spool 9 overcomes spring 7 moved to right, and P1, P2 chamber are linked up, along with moving to right of spool, the logical hydraulic fluid port area in P1, P2 chamber increases, and contacts with the left side of spring seat 11 until spool 9 right sides, and logical hydraulic fluid port area is maximum, spool 9 stops to move, and two chambeies are linked up fully.When the pressure of fluid oil suction chamber during less than spring 7 cracking pressures, spool 9 moves to left immediately, contacts spool 9 until the oil sealing mouth 15 of spool 9 with the oil sealing mouth of valve pocket 6 and promptly closes, and realizes that forward opens.
Otherwise pressure oil enters from the P2 chamber, and oil liquid pressure acts on spool draining hole 13 inner chambers and spring 7 locating faces, makes spool 9 more firm being positioned on the oil sealing mouth, and P1 does not have in the chamber fluid and flows out, and promptly oppositely ends.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (7)
1. the one-way valve with valve pocket comprises valve body, the center of valve body has main aperture, the right-hand member of valve body main aperture plug screw sealing and fixing, it is characterized in that: have an oil inlet P 1 in the valve body bottom surface and an oil outlet P2 communicates with main aperture, centre at main aperture, between oil inlet P 1 and the oil outlet P2 valve pocket is installed, the inner chamber of valve pocket is equipped with spool, the inner chamber of spool is with spring, one end of spring is connected with the spool inwall, the other end is fixed on the spring seat, and spring seat is connected with the plug screw that the valve body right-hand member is used to seal.
2. a kind of one-way valve according to claim 1 with valve pocket, it is characterized in that: described main aperture adopts the form of ladder blind hole, main aperture is communicated with the circular bead surface internal diameter of filler opening less than the circular bead surface internal diameter that is communicated with oil outlet, and the circular bead surface of main aperture right-hand member is provided with screw thread and can be used to seal the swivel nut spiral that main aperture uses with the valve body right-hand member and joins.
3. a kind of one-way valve with valve pocket according to claim 1 is characterized in that: described oil inlet P 1 and oil outlet P2 and valve body bottom surface jointing are provided with seal ring, play the effect of sealing.
4. a kind of one-way valve according to claim 1 with valve pocket, it is characterized in that: describedly on valve pocket, a toroidal cavity is set with the surface of contact of valve body main aperture, place back-up ring and seal ring in the groove, between valve pocket and valve body inner wall of main hole, play the effect of sealing.
5. a kind of one-way valve with valve pocket according to claim 1 is characterized in that: be with spring on the inner chamber of described spool, an end of spring contacts with spool, and the other end is placed in the positioning hole of spring seat, is fixed on the spring seat.
6. according to claim 4 and 5 described valve pocket and spools, it is characterized in that: the circular bead surface of described valve pocket inner chamber contacts with the oil sealing mouth of spool, and circular bead surface and oil sealing is salty closes.
7. a kind of one-way valve according to claim 1 with valve pocket, it is characterized in that: described plug screw outer installment has the threads engaged of screw thread and valve body right-hand member circular bead surface,, guarantee that pressure oil does not leak and prevent that dust from entering by seal ring and retaining ring sealing at the jointing of plug screw and valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710173772 CN101469786A (en) | 2007-12-29 | 2007-12-29 | Non-return valve with valve housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710173772 CN101469786A (en) | 2007-12-29 | 2007-12-29 | Non-return valve with valve housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101469786A true CN101469786A (en) | 2009-07-01 |
Family
ID=40827514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710173772 Pending CN101469786A (en) | 2007-12-29 | 2007-12-29 | Non-return valve with valve housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101469786A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374316A (en) * | 2010-08-26 | 2012-03-14 | 中国北车集团大同电力机车有限责任公司 | Check valve |
| CN103697184A (en) * | 2013-12-20 | 2014-04-02 | 中国北方车辆研究所 | Through-flow structure for sliding valve port |
| CN108644105A (en) * | 2018-06-12 | 2018-10-12 | 台州巨力工具有限公司 | A kind of check valve and hydraulic tool for hydraulic tool |
| CN109434456A (en) * | 2018-12-27 | 2019-03-08 | 凡尔机械集团有限公司 | A kind of Novel valve core component and its assembly technology |
-
2007
- 2007-12-29 CN CN 200710173772 patent/CN101469786A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374316A (en) * | 2010-08-26 | 2012-03-14 | 中国北车集团大同电力机车有限责任公司 | Check valve |
| CN103697184A (en) * | 2013-12-20 | 2014-04-02 | 中国北方车辆研究所 | Through-flow structure for sliding valve port |
| CN108644105A (en) * | 2018-06-12 | 2018-10-12 | 台州巨力工具有限公司 | A kind of check valve and hydraulic tool for hydraulic tool |
| CN108644105B (en) * | 2018-06-12 | 2023-06-30 | 台州巨力工具股份有限公司 | One-way valve for hydraulic tool and hydraulic tool |
| CN109434456A (en) * | 2018-12-27 | 2019-03-08 | 凡尔机械集团有限公司 | A kind of Novel valve core component and its assembly technology |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090701 |