CN108278393B - A kind of slide valve type guide one-way overflow valve - Google Patents
A kind of slide valve type guide one-way overflow valve Download PDFInfo
- Publication number
- CN108278393B CN108278393B CN201810057797.7A CN201810057797A CN108278393B CN 108278393 B CN108278393 B CN 108278393B CN 201810057797 A CN201810057797 A CN 201810057797A CN 108278393 B CN108278393 B CN 108278393B
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- China
- Prior art keywords
- valve
- overflow
- hole
- guide
- nonreturn
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1823—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for ball check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
- F16K17/105—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve using choking or throttling means to control the fluid operation of the main valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Safety Valves (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a kind of slide valve type guide one-way overflow valve, including main valve and pilot valve, main valve includes valve pocket, guide's valve seat, reset spring, nonreturn valve core, overflow spool, wire circlip and swivel nut；Pilot valve includes swivel nut, guide's valve seat, locking nut, adjusting set, adjustment spring and pilot valve.The overflow spool and nonreturn valve core of this kind of guide's one-way overflow valve are independent two parts, and structure is simple, easy to process, the completely noiseless generation of when work.
Description
Technical field
The invention belongs to technical field of hydraulic elements, especially slide valve type guide one-way overflow valve field, are mainly used for liquid
The overload overflow pressure limiting of pressure system and pipeline reversely supplement oil liquid protection.
Background technique
Threaded insertion pilot one-way overflow valve is used primarily in the work connection of multi-way valve, the overload overflow for workload
Oil liquid is supplemented from oil return line when voltage-limiting protection and load pipeline are emptied.Guide's one-way overflow valve of the prior art usually such as Fig. 4,
Two kinds of structures of Fig. 5, valve pocket and spool are step structure, match difference in areas with this, realize one-way function.These structures
In, the oil return of valve pocket vortex easy to form, spool is that cantilever design is easy to produce vibration.Part using above two structure is more
In the valve of road, guide's one-way overflow valve will appear sharp howling in overfall working condition, and change matches overflow valve in any case
Oil inlet and out oil damping and the oil inlet of multi-way valve valve chamber and oil-returning structure, can not all change the state uttered long and high-pitched sounds.
Summary of the invention
For the present invention in view of the shortcomings of the prior art, providing a kind of slide valve type guide one-way overflow valve, this kind of slide valve type guide is single
It is overflow spool from independent two parts to overflow valve and nonreturn valve core, structure is simple, easy to process, entirely without making an uproar when work
Sound generates.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals: a kind of slide valve type guide is single
To overflow valve, including main valve and pilot valve, the main valve includes valve pocket, guide's valve seat, reset spring, nonreturn valve core, overflow valve
Core, wire circlip and swivel nut, described valve pocket one end are axially arranged with the first hydraulic fluid port, and the second oil has been arranged radially on the valve pocket
Mouthful, being fixedly clamped between the valve pocket and the swivel nut by threaded engagement has the pilot valve seat, in the middle part of guide's valve seat
Equipped with the first damping hole and it has been arranged radially oil return hole, drainback passage is cooperatively formed between the valve pocket and the swivel nut, it is described
Drainback passage is connected to the oil return hole, and sliding is provided with the overflow spool and the nonreturn valve core in the valve pocket, described
The reset spring is provided between nonreturn valve core and guide's valve seat, the nonreturn valve core is axially provided with greater than described
Second damping hole of one damping hole, overflow spool one end are limited against the nonreturn valve core other end by the wire circlip
Position, the overflow poppet shaft is to being provided with first through hole, and the overflow valve core diameter is to there is an overflow hole, the nonreturn valve core and described
The conical surface is provided on the face that overflow spool offsets；The pilot valve include the swivel nut, guide's valve seat, locking nut,
Adjusting set, adjustment spring and pilot valve, the swivel nut is provided with the adjusting set by being threadedly engaged, outside the adjusting set
It is provided with the locking nut by being threadedly engaged on circumferential surface, is provided in the adjusting set towards the side of guide's valve seat
Blind hole, the blind hole end face are connected with pilot valve on one end of the adjustment spring, the other end of the adjustment spring,
The pilot valve is axially arranged with the second through-hole, and the pilot valve is provided with steel ball on the face opposite with guide's valve seat
Slot, the steel bead groove is interior to be equipped with steel ball.The overflow spool and nonreturn valve core of this kind of guide's one-way overflow valve are independent two zero
Part, structure is simple, easy to process, the completely noiseless generation of when work.
In above-mentioned technical proposal, it is preferred that the one end contacted on the nonreturn valve core with the reset spring is provided with platform
Rank hole, the reset spring protrude into the stepped hole.Using the structure reset spring will not be hung down pendant, guarantees that elastic force is more steady
It is fixed.
In above-mentioned technical proposal, it is preferred that the overflow spool outer peripheral surface is equipped with annular groove, the annular groove and the overflow
Hole connection.Make running of hydraulic power oil more smooth using the structure.
In above-mentioned technical proposal, it is preferred that be provided with bulge loop in the adjusting set, it is recessed that the bulge loop outer ring is provided with annular
Slot is provided with sealing ring between the annular groove and the swivel nut.Increased using the structure close between adjusting set and swivel nut
Feng Xing prevents hydraulic fluid leak.
In above-mentioned technical proposal, it is preferred that the adjusting set outer end is provided with hex hole.Facilitated using the structure with pulling
Hand is pulled adjusting set and is adjusted.
Compared with prior art, the present invention have the following beneficial effects: this kind of guide's one-way overflow valve overflow spool and
Nonreturn valve core is independent two parts, and structure is simple, easy to process, the completely noiseless generation of when work.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the embodiment of the present invention.
Schematic cross-sectional view when Fig. 2 is overfall working condition of the embodiment of the present invention.
Schematic cross-sectional view when Fig. 3 is unidirectional repairing of the embodiment of the present invention.
Fig. 4 is the schematic cross-sectional view of background of invention.
Fig. 5 is the schematic cross-sectional view of another background technique of the present invention.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing: a kind of referring to Fig. 1 to Fig. 3
Slide valve type guide's one-way overflow valve, including main valve 1 and pilot valve 2, the main valve 1 include valve pocket 3, guide's valve seat 4, reset spring
5, nonreturn valve core 6, overflow spool 7, wire circlip 8 and swivel nut 9, described 3 one end of valve pocket is axially arranged with the first hydraulic fluid port 31, described
It has been arranged radially the second hydraulic fluid port 32 on valve pocket 3, has been fixedly clamped between the valve pocket 3 and the swivel nut 9 by threaded engagement
State guide's valve seat 4, the first damping hole 41 is equipped in the middle part of guide's valve seat 4 and has been arranged radially oil return hole 42, the valve pocket 3 with
Drainback passage 10 is cooperatively formed between the swivel nut 9, the drainback passage 10 is connected to the oil return hole 42, in the valve pocket 3
Sliding is provided with the overflow spool 7 and the nonreturn valve core 6, is provided between the nonreturn valve core 6 and guide's valve seat 4
The reset spring 5, axial the second damping hole 61 being provided with greater than first damping hole 41 of the nonreturn valve core 6 are described
7 one end of overflow spool is limited against 6 other end of nonreturn valve core by the wire circlip 8, and the overflow spool 7 is axial to be set
It is equipped with first through hole 71, the overflow spool 7 is radial overflow hole 72, what the nonreturn valve core 6 and the overflow spool 7 offseted
The conical surface is provided on face；The pilot valve 2 include the swivel nut 9, guide's valve seat 4, locking nut 11, adjusting set 12,
Adjustment spring 13 and pilot valve 14, the swivel nut 9 are provided with the adjusting set 12 by being threadedly engaged, the adjusting set 12
It is provided with the locking nut 11 by being threadedly engaged on outer peripheral surface, towards the one of guide's valve seat 4 in the adjusting set 12
Side is provided with blind hole 121,121 end face of blind hole against one end of the adjustment spring 13, the adjustment spring 13 it is another
Pilot valve 14 is connected on end, the pilot valve 14 is axially arranged with the second through-hole 141, the pilot valve 14 and the elder generation
It is provided with steel bead groove 142 on the opposite face of guide valve seat 4, is equipped with steel ball 15 in the steel bead groove 142.
The one end contacted on the nonreturn valve core 6 with the reset spring 5 is provided with stepped hole 62, the reset spring 5
It protrudes into the stepped hole 62.
7 outer peripheral surface of overflow spool is equipped with annular groove 73, and the annular groove 73 is connected to the overflow hole 72.
Bulge loop 122 is provided in the adjusting set 12,122 outer ring of bulge loop is provided with annular groove 123, the annular
Sealing ring 16 is provided between groove 123 and the swivel nut 9.
12 outer end of adjusting set is provided with hex hole 124.
The overfall working condition course of work are as follows: workload oil pressure acts on the first hydraulic fluid port, enters reset through the first damping hole
The main valve cavity of spring, then enter guide's valve seat through the second damping hole, it acts on the steel ball of pilot valve front end.When the first oil
When mouth pressure is also not up to the pressure of pressure spring setting, the first hydraulic fluid port and the second hydraulic fluid port are obstructed.With first pressure by
Edge up height, and the pressure acted on the steel ball of pilot valve front end is also gradually increased, and can push pressure spring when pressure increases to
When compression, the steel ball of pilot valve leaves the sealing surface of guide's valve seat, and pilot valve is opened, and the oil liquid of the first hydraulic fluid port is through
One damping hole, the second damping hole, oil return hole and drainback passage enter the second hydraulic fluid port.Since the diameter of the first damping hole is than the second resistance
The diameter in Buddhist nun hole is small, and when pilot valve is opened, the Extraction rate of the second damping hole is faster than the oil inlet speed of the first damping hole, this
Sample can form pressure difference between the main valve chamber and the first hydraulic fluid port of reset spring, this pressure difference will push overflow spool and check valve
Compression reseting spring is mobile to guide's valve seat direction together for core, and annular groove just connects with the second hydraulic fluid port on valve pocket on such overflow spool
It is logical, the access of realization the first hydraulic fluid port of hydraulic fluid port to the second hydraulic fluid port.
The unidirectional repairing operating condition course of work are as follows: the first hydraulic fluid port will appear under certain operating conditions is emptied negative pressure appearance, at this time
System must be entered from the second hydraulic fluid port supplement oil liquid in time, in order to avoid causing the cavitation erosion of system, damage related elements.Return pressure is made
When used in the second hydraulic fluid port, oil pressure is acted against on the conical surface of nonreturn valve core front end, this conical surface and valve pocket inner hole form oil pressure
The area annulus of effect pushes nonreturn valve core compression reseting spring, and nonreturn valve core is mobile to guide's valve seat direction, leaves and overflow
The sealing ring surface of spool forms unidirectional feed circuit.
Claims (5)
1. a kind of slide valve type guide one-way overflow valve, including main valve (1) and pilot valve (2), it is characterised in that: the main valve (1)
Including valve pocket (3), guide's valve seat (4), reset spring (5), nonreturn valve core (6), overflow spool (7), wire circlip (8) and spiral shell
It covers (9), described valve pocket (3) one end is axially arranged with the first hydraulic fluid port (31), has been arranged radially the second hydraulic fluid port on the valve pocket (3)
(32), being fixedly clamped between the valve pocket (3) and the swivel nut (9) by threaded engagement has the pilot valve seat (4), the elder generation
It is equipped with the first damping hole (41) in the middle part of guide valve seat (4) and has been arranged radially oil return hole (42), the valve pocket (3) and the swivel nut
(9) it is cooperatively formed between drainback passage (10), the drainback passage (10) is connected to the oil return hole (42), the valve pocket (3)
Interior sliding is provided with the overflow spool (7) and the nonreturn valve core (6), the nonreturn valve core (6) and guide's valve seat (4)
Between be provided with the reset spring (5), the nonreturn valve core (6) is axially provided with the greater than first damping hole (41)
Two damping holes (61), described overflow spool (7) one end pass through the wire circlip (8) against the nonreturn valve core (6), the other end
Limit, the overflow spool (7) are axially provided with first through hole (71), and the overflow spool (7) radially has overflow hole (72), institute
It states and is provided with the conical surface on the face that nonreturn valve core (6) and the overflow spool (7) offset；The pilot valve (2) includes the spiral shell
Cover (9), guide's valve seat (4), locking nut (11), adjusting set (12), adjustment spring (13) and pilot valve (14), institute
It states swivel nut (9) to be provided with the adjusting set (12) by being threadedly engaged, by being threadedly engaged on adjusting set (12) outer peripheral surface
It is provided with the locking nut (11), the side of guide's valve seat (4) is provided with blind hole in the adjusting set (12)
(121), blind hole (121) end face is on one end of the adjustment spring (13), the other end of the adjustment spring (13)
It is connected with pilot valve (14), the pilot valve (14) is axially arranged with the second through-hole (141), the pilot valve (14) and institute
It states and is provided with steel bead groove (142) on the opposite face of guide's valve seat (4), be equipped with steel ball (15) in the steel bead groove (142).
2. a kind of slide valve type guide one-way overflow valve as described in claim 1, it is characterised in that: on the nonreturn valve core (6)
The one end contacted with the reset spring (5) is provided with stepped hole (62), and the reset spring (5) protrudes into the stepped hole (62)
It is interior.
3. a kind of slide valve type guide one-way overflow valve as described in claim 1, it is characterised in that: the overflow spool (7) is outside
Circumferential surface is equipped with annular groove (73), and the annular groove (73) is connected to the overflow hole (72).
4. a kind of slide valve type guide one-way overflow valve as described in claim 1, it is characterised in that: set on the adjusting set (12)
It is equipped with bulge loop (122), bulge loop (122) outer ring is provided with annular groove (123), the annular groove (123) and the spiral shell
Sealing ring (16) are provided between set (9).
5. a kind of slide valve type guide one-way overflow valve as described in claim 1, it is characterised in that: adjusting set (12) outer end
It is provided with hex hole (124).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810057797.7A CN108278393B (en) | 2018-01-22 | 2018-01-22 | A kind of slide valve type guide one-way overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810057797.7A CN108278393B (en) | 2018-01-22 | 2018-01-22 | A kind of slide valve type guide one-way overflow valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108278393A CN108278393A (en) | 2018-07-13 |
| CN108278393B true CN108278393B (en) | 2019-06-14 |
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ID=62804345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810057797.7A Active CN108278393B (en) | 2018-01-22 | 2018-01-22 | A kind of slide valve type guide one-way overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108278393B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404357A (en) * | 2018-10-30 | 2019-03-01 | 武汉船用机械有限责任公司 | A kind of overflow valve |
| CN110230615B (en) * | 2019-04-29 | 2020-10-30 | 裕泰液压技术(上海)有限公司 | Plug-in type time-delay overflow valve |
| CN111747218A (en) * | 2020-06-16 | 2020-10-09 | 武芳 | Controller for winding device of textile machine |
| CN112460092A (en) * | 2020-12-10 | 2021-03-09 | 山东泰丰智能控制股份有限公司 | Flow valve and overflow valve integrated threaded cartridge valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006021926A1 (en) * | 2006-05-11 | 2007-11-22 | Gerhard Götze KG | Overflow valve for opening flow path, has valve seat, which is arranged in valve upper part and recess that is inserted in cladding circumference of valve upper part, where flow path between inlet and outlet nozzles runs through recess |
| CN201526552U (en) * | 2009-09-30 | 2010-07-14 | 浙江大学宁波理工学院 | Plug-in pilot relief valve |
| CN201651468U (en) * | 2010-01-28 | 2010-11-24 | 江麓机电科技有限公司 | Small one-way overflow valve |
| CN103122882A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Adjustable pilot overflow valve |
| CN203784001U (en) * | 2014-04-16 | 2014-08-20 | 江苏二马液压元件有限公司 | Overflow valve |
| CN204300040U (en) * | 2014-12-05 | 2015-04-29 | 宁波克泰液压有限公司 | Screw thread inserting type cutting type relief valve |
-
2018
- 2018-01-22 CN CN201810057797.7A patent/CN108278393B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006021926A1 (en) * | 2006-05-11 | 2007-11-22 | Gerhard Götze KG | Overflow valve for opening flow path, has valve seat, which is arranged in valve upper part and recess that is inserted in cladding circumference of valve upper part, where flow path between inlet and outlet nozzles runs through recess |
| CN201526552U (en) * | 2009-09-30 | 2010-07-14 | 浙江大学宁波理工学院 | Plug-in pilot relief valve |
| CN201651468U (en) * | 2010-01-28 | 2010-11-24 | 江麓机电科技有限公司 | Small one-way overflow valve |
| CN103122882A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Adjustable pilot overflow valve |
| CN203784001U (en) * | 2014-04-16 | 2014-08-20 | 江苏二马液压元件有限公司 | Overflow valve |
| CN204300040U (en) * | 2014-12-05 | 2015-04-29 | 宁波克泰液压有限公司 | Screw thread inserting type cutting type relief valve |
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| Publication number | Publication date |
|---|---|
| CN108278393A (en) | 2018-07-13 |
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