CN204344561U - Pressure-releasing type fluid-control one-way logical valve - Google Patents
Pressure-releasing type fluid-control one-way logical valve Download PDFInfo
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- CN204344561U CN204344561U CN201420802904.1U CN201420802904U CN204344561U CN 204344561 U CN204344561 U CN 204344561U CN 201420802904 U CN201420802904 U CN 201420802904U CN 204344561 U CN204344561 U CN 204344561U
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Abstract
The utility model discloses a kind of pressure-releasing type fluid-control one-way logical valve, belong to one-way valve field, comprise and regulate Cover Gasket and main valve housing, be provided with in described adjustment Cover Gasket and control to promote piston, promote to be provided with main valve plug spring seat in piston in described control, run through in described main valve housing and be provided with main valve plug, inside described main valve plug and described main valve housing, form a linear sealing structure; In described main valve plug, be provided with release of pressure spool, one end of described release of pressure spool has leaned nonreturn valve core, and one end of described nonreturn valve core is mushroom-head, and described nonreturn valve core is socketed with turriform spring.Compared with prior art, the utility model adopts the design of logic valve type, and valve arrangement is more compact, volume is less, installation and design cost significantly reduce, and the design cycle shortens, and total manufacturing cost reduces, cost performance is better, Maximum operating pressure can reach 31.5MPa, owing to carrying pressure release valve, under high pressure runs more steady, design pressure drop is little, and circulation energy is large.
Description
Technical field
The utility model belongs to Pilot operated check valve technical field, particularly relates to a kind of pressure-releasing type fluid-control one-way logical valve.
Background technique
At present, the Pilot operated check valve that international market is sold mainly contains plate valve structure, tube valve structure and thread cartridge valve arrangement, and only having plate valve structure this is a kind of with release of pressure function, and plate valve is comparatively traditional, although its structure function develops at present, convergence is perfect, but apparent size is too large, valve body casts aft-loaded airfoil complexity and foundry goods valve body poor stability compared with steel part, the manifold block design volume joined is also large, hydraulic parts product can not be met to compact structure, function and service, the development trend of design light, and the screw-in cartridge valve not with release structure exist pressure chamber pressure excessive time the spool phenomenon of not easily opening.The problems referred to above, urgently to be resolved hurrily.
Summary of the invention
The utility model, for deficiency of the prior art, provides a kind of pressure-releasing type fluid-control one-way logical valve, solves Conventional plate-type band release of pressure function hydraulic control one-way valve designs volume excessive, and oil circuit compact not and spool such as not easily to open at the problem.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: pressure-releasing type fluid-control one-way logical valve, comprise and regulate Cover Gasket and main valve housing, one end of described main valve housing embeds in described adjustment Cover Gasket, the outer side surface of described main valve housing is provided with half slot, the inner side surface of described adjustment Cover Gasket is provided with straight groove, and described half slot and described straight groove surround a passage, are provided with a jump ring in described passage; Be provided with in described adjustment Cover Gasket and control to promote piston, promote to be provided with main valve plug spring seat in piston in described control, in described main valve plug spring seat and described main valve housing, run through the main valve plug being provided with and oppositely opening, inside described main valve plug and described main valve housing, form a linear sealing structure; Release of pressure spool is provided with in described main valve plug, one end of described release of pressure spool has leaned nonreturn valve core, one end of described nonreturn valve core is mushroom-head, release of pressure valve seat is outside equipped with at described nonreturn valve core, described release of pressure valve seat is connected by screw threads for fastening with the afterbody of described main valve plug, and described nonreturn valve core is socketed with turriform spring.Such setting, is applied to above logical valve by jump ring first, can realize better sealing effect, and inside the main valve plug and main valve housing of logical valve, shape adopts linear sealing structure simultaneously, makes it reach the sealing effect of zero leakage; Application tower spring can meet thin tail sheep stroke and little reduction length requirement; One end of nonreturn valve core is mushroom-head, substantially reduce spool travel stroke, and when pressure chamber pressure is excessive, spool is more easily opened compared to traditional spring poppet valve core be built in valve core spring groove.
In order to obtain better technique effect, further technological improvement also comprises, described main valve housing is provided with spring chamber near described one end controlling to promote piston, described main valve plug spring seat is socketed with Returnning spring, one end of described Returnning spring is arranged in described spring chamber, the other end is fixedly connected with the described endoporus controlling to promote piston, and described main valve plug is also socketed with main valve plug spring, and described main valve plug spring is between described main valve housing and described main valve plug spring seat.
In order to obtain better technique effect, further technological improvement also comprises, and described main valve housing evenly offers several A oil through, and described A oil through ovalize, the end face of described main valve housing is provided with B oil through.Such setting, employing slotted eye on main valve housing, both ensure that the effective thickness of main valve housing, and what in turn ensure that this valve passes through flow.
In order to obtain better technique effect, further technological improvement also comprises, the internal surface of described main valve housing adopts grinding process, the roughness of described main valve housing internal surface is less than or equal to 0.2, the outer surface of described main valve plug also adopts grinding process, and the outer surface of described main valve plug obtains roughness and is less than or equal to 0.4.Such setting, when main valve housing and main valve plug phase match grinding, enhances valve core reset guide function, guarantees spool parking position accuracy.
In order to obtain better technique effect, further technological improvement also comprises, and described main valve housing is provided with oil drain out, and a port of described oil drain out extends to described spring chamber, and another port of described oil drain out is positioned on described main valve housing side.Such setting, during valve core reset, in spring chamber, oil is discharged by oil drainage hole.
In order to obtain better technique effect, further technological improvement also comprises, described main valve plug be circumferentially also provided with half slot, in described half slot, be provided with jump ring.
In order to obtain better technique effect, further technological improvement also comprises, and the diameter of described jump ring is 0.7 millimeter.Such setting, makes to fix together closely between part.
In order to obtain better technique effect, further technological improvement also comprises, and the outer peripheral surface of described main valve housing is provided with the first groove, in described first groove, be provided with O RunddichtringO.
In order to obtain better technique effect, further technological improvement also comprises, and the outer peripheral surface and end face of described adjustment Cover Gasket is provided with the second groove, in described second groove, is also provided with O RunddichtringO.
The beneficial effects of the utility model are: adopt the design of logic valve type, valve arrangement is more compact, and volume is less, installation and design cost significantly reduce, design cycle shortens, and total manufacturing cost reduces, and cost performance is better, Maximum operating pressure can reach 31. 5MPa, owing to carrying pressure release valve, under high pressure run more steady, design pressure drop is little, circulation energy is large, and when pressure chamber pressure is excessive, spool is more easily opened; Employing cone valve type designs, and valve internal leakage (from loss, closing pin) is lower, and load can keep No leakage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of main valve housing of the present utility model.
Fig. 3 is the sectional view of main valve housing of the present utility model.
Fig. 4 is P place of the present utility model enlarged diagram.
Fig. 5 is K place of the present utility model enlarged diagram.
Fig. 6 is hydraulic schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Show see Fig. 1 to Fig. 6, a kind of embodiment of the present utility model.Pressure-releasing type fluid-control one-way logical valve, comprise and regulate Cover Gasket 1 and main valve housing 7, one end of described main valve housing 7 embeds in described adjustment Cover Gasket 1, the outer side surface of described main valve housing 7 is provided with half slot 70, the inner side surface of described adjustment Cover Gasket 1 is provided with straight groove 14, described half slot 70 surrounds a passage with described straight groove 14, is provided with a jump ring 71 in described passage; Be provided with in described adjustment Cover Gasket 1 and control to promote piston 2, promote to be provided with main valve plug spring seat 3 in piston 2 in described control, in described main valve plug spring seat 3 and described main valve housing 7, run through the main valve plug 6 being provided with and oppositely opening, inside described main valve plug 6 and described main valve housing 7, form a linear sealing structure 60; Release of pressure spool 8 is provided with in described main valve plug 6, one end of described release of pressure spool 8 has leaned nonreturn valve core 10, one end of described nonreturn valve core 10 is mushroom-head, release of pressure valve seat 9 is outside equipped with at described nonreturn valve core 10, described release of pressure valve seat 9 is connected by screw threads for fastening with the afterbody of described main valve plug 6, and described nonreturn valve core 10 is socketed with turriform spring 11.Be applied to above logical valve by jump ring first in the utility model, can realize better sealing effect, inside the main valve plug and main valve housing of logical valve, shape adopts linear sealing structure simultaneously, makes it reach the sealing effect of zero leakage; Application tower spring can meet thin tail sheep stroke and little reduction length requirement; One end of nonreturn valve core is mushroom-head, substantially reduces spool travel stroke compared to traditional spring poppet valve core be built in valve core spring groove.
In technique scheme, described main valve housing 7 is provided with spring chamber 72 near described one end controlling to promote piston 2, described main valve plug spring seat 3 is socketed with Returnning spring 4, one end of described Returnning spring 4 is arranged in described spring chamber 72, the other end is fixedly connected with the described endoporus controlling to promote piston 2, described main valve plug 6 is also socketed with main valve plug spring 5, and described main valve plug spring 5 is described in described main valve housing 7 between main valve plug spring seat 3.
In technique scheme, described main valve housing 7 evenly offers several A oil through, described A oil through ovalize, the end face of described main valve housing 7 is provided with B oil through.Employing slotted eye on main valve housing 7 like this, both ensure that the effective thickness d between two adjacent A oil throughs on main valve housing 7, what in turn ensure that this valve passes through flow.
In technique scheme, the internal surface of described main valve housing 7 adopts grinding process, the roughness of described main valve housing 7 internal surface is less than or equal to 0.2, and the outer surface of described main valve plug 6 also adopts grinding process, and the outer surface of described main valve plug 6 obtains roughness and is less than or equal to 0.4.When such main valve housing 7 matches with main valve plug 6, enhance valve core reset guide function, guarantee spool parking position accuracy.
In technique scheme, described main valve housing 7 is provided with oil drain out 73, a port of described oil drain out 73 extends to described spring chamber 72, and another port of described oil drain out 73 is positioned on described main valve housing 7 side.During such valve core reset, in spring chamber, oil is discharged by oil drainage hole 73.
In technique scheme, described main valve plug 6 be circumferentially also provided with half slot 70, in described half slot 70, be provided with jump ring 71.
In technique scheme, the diameter of described jump ring 71 is 0.7 millimeter.Such setting, makes to fix together closely between part.
In technique scheme, the outer peripheral surface of described main valve housing 7 is provided with the first groove 74, in described first groove 74, is provided with O RunddichtringO 13.
In technique scheme, the outer peripheral surface and end face of described adjustment Cover Gasket 1 are provided with the second groove 12, in described second groove 12, are also provided with O RunddichtringO 13.
Main valve plug 6 of the present utility model is cone valve form, in main valve plug spring seat 3 and main valve housing 7, adopt upside-down mounting mode to install, when fluid flows to B oil through from A oil through, the elastic force that the fluid pressure of A oil through overcomes main valve plug spring 5 flows to B oil through, as the unidirectional free-flow of a direction (A → B) (pressure drop is very little), when fluid flows to A hydraulic fluid port from B oil through, (B → A) cut-off in the other direction, main valve plug spring 5 plays the function (spring force is adjustable) that main valve plug 6 is resetted, and now this valve is a hydraulic control direct-drive one-way valve.The weight overcoming release of pressure spool 8 plays and makes pilot control level nonreturn valve core 10(ball valve core by the spring force of check valve spring 11) be pressed on main valve plug 6.When the pressure of A oil through exceedes the hydraulic coupling of spring setting force and A oil through, main valve plug 6 is opened, and its Flow characteristics is depended in the pressure drop that fluid flows through oil through generation, and now this valve uses as simple one-way valve.In the reverse direction, when acting on the promotion of the control above X oil through piston 2 pressure and being enough large, overcome the elastic force and A oil through oil pressure that control the Returnning spring 4 promoting piston, promote to control to promote piston 2, the relation that should meet oppositely is opened: (in formula, Px is for controlling mouth oil liquid pressure for (Px-Pa) Ax-Fxf > (Pb-Pa) A+Ft+Ff+G when controlling to promote can to obtain Pilot operated check valve by the equilibrium of forces condition of spool when piston 2 touches release of pressure spool 8, Ax is control piston area, Fxf is control piston surface friction drag, Pb is the reverse input pressure of B oil through), when meeting this and regulating, release of pressure spool 8 backs down nonreturn valve core 10, B oil through flows into A oil through by main valve plug 6 through release of pressure valve seat 9, along with pilot control step valve X mouth has the unlatching of not half, when the pressure reduction of B oil through declines to a certain degree, main valve plug 6 is all opened by the pilot pressure of X oil through, thus liquid stream can flow to A oil through by B oil through.
The utility model pressure-releasing type fluid-control one-way logical valve achieves installation cost to be reduced, working efficiency is higher, system cycle time is faster, response capability is strong, and control cover plate with two-way plug-in valve to combine and use, external control pilot solenoid valve can directly design on control cover plate, not only designs more convenient, also improve performance and design drawing efficiency compared with Conventional plate-type valve.Due to built-in release of pressure spool, thoroughly solve the defect that it does not possess release of pressure function compared with the screw-in cartridge valve not with release of pressure.
That more than enumerates is only specific embodiment of the utility model, and obviously, the utility model is not limited to above embodiment.All distortion that those of ordinary skill in the art can directly derive from content disclosed in the utility model or associate, all should belong to protection domain of the present utility model.
Claims (9)
1. pressure-releasing type fluid-control one-way logical valve, comprises and regulates Cover Gasket (1) and main valve housing (7), described main valve
One end of cover (7) embeds in described adjustment Cover Gasket (1), it is characterized in that, the outer side surface of described main valve housing (7) is provided with half slot (70), the inner side surface of described adjustment Cover Gasket (1) is provided with straight groove (14), described half slot (70) and described straight groove (14) surround a passage, are provided with a jump ring (71) in described passage; Be provided with in described adjustment Cover Gasket (1) and control to promote piston (2), promote to be provided with main valve plug spring seat (3) in piston (2) in described control, in described main valve plug spring seat (3) and described main valve housing (7), run through the main valve plug (6) being provided with and oppositely opening, described main valve plug (6) forms a linear sealing structure (60) with described main valve housing (7) inner side; Release of pressure spool (8) is provided with in described main valve plug (6), one end of described release of pressure spool (8) has leaned nonreturn valve core (10), one end of described nonreturn valve core (10) is mushroom-head, release of pressure valve seat (9) is outside equipped with at described nonreturn valve core (10), described release of pressure valve seat (9) is connected by screw threads for fastening with the afterbody of described main valve plug (6), and described nonreturn valve core (10) is socketed with turriform spring (11).
2. pressure-releasing type fluid-control one-way logical valve according to claim 1, it is characterized in that, described main valve housing (7) is provided with spring chamber (72) near described one end controlling to promote piston (2), described main valve plug spring seat (3) is socketed with Returnning spring (4), one end of described Returnning spring (4) is arranged in described spring chamber (72), the other end is fixedly connected with the described endoporus controlling to promote piston (2), described main valve plug (6) is also socketed with main valve plug spring (5), described main valve plug spring (5) is positioned between described main valve housing (7) and described main valve plug spring seat (3).
3. pressure-releasing type fluid-control one-way logical valve according to claim 1 and 2, is characterized in that, described main valve housing (7) evenly offers several A oil through, and described A oil through ovalize, the end face of described main valve housing (7) is provided with B oil through.
4. pressure-releasing type fluid-control one-way logical valve according to claim 1, it is characterized in that, the internal surface of described main valve housing (7) adopts grinding process, the roughness of described main valve housing (7) internal surface is less than or equal to 0.2, the outer surface of described main valve plug (6) also adopts grinding process, and the outer surface of described main valve plug (6) obtains roughness and is less than or equal to 0.4.
5. pressure-releasing type fluid-control one-way logical valve according to claim 1, it is characterized in that, described main valve housing (7) is provided with oil drain out (73), a port of described oil drain out (73) extends to described spring chamber (72), and another port of described oil drain out (73) is positioned on described main valve housing (7) side.
6. pressure-releasing type fluid-control one-way logical valve according to claim 2, is characterized in that, described main valve plug (6) be circumferentially also provided with half slot (70), in described half slot (70), be provided with jump ring (71).
7. the pressure-releasing type fluid-control one-way logical valve according to claim 1 or 6, is characterized in that, the diameter of described jump ring (71) is 0.7 millimeter.
8. pressure-releasing type fluid-control one-way logical valve according to claim 1, is characterized in that, the outer peripheral surface of described main valve housing (7) is provided with the first groove (74), in described first groove (74), be provided with O RunddichtringO (13).
9. pressure-releasing type fluid-control one-way logical valve according to claim 1, is characterized in that, the outer peripheral surface and end face of described adjustment Cover Gasket (1) is provided with the second groove (12), in described second groove (12), is also provided with O RunddichtringO (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802904.1U CN204344561U (en) | 2014-12-18 | 2014-12-18 | Pressure-releasing type fluid-control one-way logical valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802904.1U CN204344561U (en) | 2014-12-18 | 2014-12-18 | Pressure-releasing type fluid-control one-way logical valve |
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| CN204344561U true CN204344561U (en) | 2015-05-20 |
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| CN201420802904.1U Active CN204344561U (en) | 2014-12-18 | 2014-12-18 | Pressure-releasing type fluid-control one-way logical valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500477A (en) * | 2014-12-18 | 2015-04-08 | 宁波市镇海展跃液压件制造有限公司 | Pressure release type hydraulic control one-way logical valve |
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2014
- 2014-12-18 CN CN201420802904.1U patent/CN204344561U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500477A (en) * | 2014-12-18 | 2015-04-08 | 宁波市镇海展跃液压件制造有限公司 | Pressure release type hydraulic control one-way logical valve |
| CN104500477B (en) * | 2014-12-18 | 2016-08-24 | 宁波市镇海展跃液压件制造有限公司 | Pressure-releasing type fluid-control one-way logical valve |
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