CN106321544A - Conversion valve - Google Patents

Conversion valve Download PDF

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Publication number
CN106321544A
CN106321544A CN201610958241.6A CN201610958241A CN106321544A CN 106321544 A CN106321544 A CN 106321544A CN 201610958241 A CN201610958241 A CN 201610958241A CN 106321544 A CN106321544 A CN 106321544A
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CN
China
Prior art keywords
fluid
hole
arm
flows
housing
Prior art date
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.)
Granted
Application number
CN201610958241.6A
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Chinese (zh)
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CN106321544B (en
Inventor
王俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Europe Shield Technology Co., Ltd.
Original Assignee
HANGZHOU OUDUN ELECTROMECHANICAL CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HANGZHOU OUDUN ELECTROMECHANICAL CO Ltd filed Critical HANGZHOU OUDUN ELECTROMECHANICAL CO Ltd
Priority to CN201610958241.6A priority Critical patent/CN106321544B/en
Publication of CN106321544A publication Critical patent/CN106321544A/en
Application granted granted Critical
Publication of CN106321544B publication Critical patent/CN106321544B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors

Abstract

The invention provides a conversion valve which comprises a shell, a conversion control part, a first connection pipe and a second connection pipe, wherein a fluid inlet and a fluid outlet are formed in the shell; the conversion control part is arranged in the shell in the axial direction perpendicular to the shell; a plurality of through holes with the axial lines parallel to the direction of the fluid inlet are formed in the conversion control part; during conversion of the flowing direction, the conversion control part moves in the axial direction perpendicular to the shell; the first connection pipe and the second connection pipe are respectively connected to the conversion control part and an external closing device to form fluid circulation.

Description

Switching valve
Technical field
The present invention relates to hydraulic machinery field, and particularly to a kind of switching valve.
Background technology
Switching valve is a kind of parts that can change flow direction.For realizing the reciprocating motion of piston in hydraulic cylinder, generally need The switching valve that can change oil circuit direction is set in hydraulic cylinder.The structure of existing hydraulic cylinder generally has two kinds, Yi Zhongshi: liquid In cylinder pressure, oil circuit can only be circulated after entering hydraulic cylinder in one direction, i.e. can only drive piston advances forward, piston Retreating and could realize after then needing manual draining, user uses very inconvenient, and working performance is the lowest.
Another kind of method is: for realizing automatically returning of piston, can configure oil circuit conversion in hydraulic cylinder the most on the market Valve, thus become bidirectional hydraulic.But, in the hydraulic cylinder of this structure, the structure complexity of oil circuit switching valve and the distribution of oil circuit The most complicated, not only cost is high and sealing between oil circuit also has bigger hidden danger for this.
Summary of the invention
The present invention is in order to overcome the deficiencies in the prior art, it is provided that a kind of switching valve.
To achieve these goals, the present invention provides a kind of switching valve to include housing, conversion control, the first connecting tube and the Two connecting tubes.There is in housing fluid intake and fluid issuing.Conversion control along being perpendicular to being axially disposed within housing of housing, Having, on conversion control, the through hole that multiple axis is parallel with fluid intake direction, when flowing to conversion, conversion control is along being perpendicular to shell Moving axially of body.First connecting tube and the second connecting tube, be connected to change control and outer closures device, form fluid Circulation.
When changing control and being positioned at the first station, conversion control blocks the first connecting tube and the second connecting tube, and fluid is at stream Circulate between body entrance and fluid issuing.
When changing control and being positioned at the second station, conversion control is from the first station to a side shifting of housing, and fluid is through turning The through hole changed on control flows into the first connecting tube from fluid intake, then flows in the first cavity of outer closures device, outside envelope Closing the through hole from the second connecting tube and conversion control of the fluid in device the second cavity and flow to fluid issuing, fluid seals in outside The circulation in first direction is formed in closing device.
When changing control and being positioned at three stations, conversion control moves to the opposite side of housing from the first station, fluid warp Through hole on conversion control flows into the second connecting tube from fluid intake, then flows in the second cavity of outer closures device, outside The fluid in closure means the first cavity through hole from the first connecting tube and conversion control flows to fluid issuing, and fluid is in outside The circulation in second direction is formed in closure means.
In one embodiment of the invention, control is first-class is interval with three through holes in conversion, and fluid intake includes that four grades are straight The inflow arm in footpath, fluid issuing includes three diameters and flows into the outflow arm of equal diameters of arm, first flow into arm, Second flows into arm and first flows out arm three and the first corresponding setting of through hole, and the diameter of the first through hole is more than an outflow The diameter of arm but flow out the diameters of arms less than or equal to two;
3rd flows into arm and second flows out arm and the corresponding setting of the second through hole, and the diameter of the second through hole is more than one Flow out the diameter of arm but flow out the diameter of arm less than or equal to two;
4th flows into arm setting corresponding with third through-hole, and the diameter of third through-hole flows out arm less than or equal to one Diameter;
First connecting tube include the first connecting branch and the second connecting branch, the first connecting branch and the second connecting branch with First through hole is correspondingly arranged;Second connecting tube includes the 3rd connecting branch and the 4th connecting branch, the 3rd connecting branch and second Connecting hole is correspondingly arranged, and the 4th connecting branch and the 3rd connecting hole are correspondingly arranged;
Conversion control is when station is changed, and the distance that conversion control moves to housing side or opposite side is equal to flowing into arm Diameter.
In one embodiment of the invention, change control shaft-like into cylinder.
In one embodiment of the invention, switching valve also includes being arranged on housing and drive the conversion control side to housing Or the actuator that opposite side moves.
In one embodiment of the invention, actuator is the swivelling cover being arranged on housing, has and be symmetrical arranged in swivelling cover Two arc tracks, two arc tracks are relative with two ends of conversion control.
In one embodiment of the invention, the outer surface of actuator has multiple Non-slip material.
In one embodiment of the invention, swivelling cover also includes two reinforcements being correspondingly arranged with two arc tracks.
In one embodiment of the invention, outer closures device is hydraulic cylinder, and the piston in hydraulic cylinder is by the cavity of hydraulic cylinder It is separated into the first cavity and the second cavity.
In sum, the switching valve prior art that the present invention provides is compared and is had the advantage that
By arranging conversion control in switching valve, conversion control can along the axis direction being perpendicular to housing move so that Conversion control is in different stations.Conversion control at different stations, through hole thereon and fluid intake and fluid issuing it Between connected relation will change.When changing control and being in the second station, outside fluid via through holes and the first connecting tube flow into The first cavity in portion's closure means, the fluid in the second cavity of outer closures device flows out through the second connecting tube and through hole, Realizing fluid circulation in the first direction in outside closure means, piston in hydraulic cylinder travels forward.And when conversion control When part is in three stations, fluid via through holes and the second connecting tube flow into the second cavity in outer closures device, outer closures Fluid in first cavity of device flows out through the first connecting tube and through hole, realizes fluid at second in outside closure means Circulation on direction, piston in hydraulic cylinder is return in situ.
The switching valve that the present invention provides only need to change the conversion control in switching valve can realize the change of flow direction, from And realize automatically moving forward and backward of piston in hydraulic cylinder.Applied on hydraulic cylinder, it is not necessary to the front oil duct design of change, only A switching valve need to be increased, the most convenient for users to use, also significantly reduce cost simultaneously.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, And coordinate accompanying drawing, it is described in detail below.
Accompanying drawing explanation
Fig. 1 show the switching valve of one embodiment of the invention offer structural representation when the first station.
Fig. 2 show the structural representation when switching valve shown in Fig. 1 is positioned at the second station.
Fig. 3 show the structural representation when switching valve shown in Fig. 1 is positioned at three stations.
Fig. 4 show the structural representation of actuator in Fig. 1.
Detailed description of the invention
The switching valve that the present embodiment provides includes housing 1, conversion control the 2, first connecting tube 3 and the second connecting tube 4.Housing There is in 1 fluid intake 11 and fluid issuing 12.Conversion control 2 along being perpendicular to being axially disposed within housing 1 of housing 1, conversion Having the through hole that multiple axis is parallel with fluid intake 11 direction on control 2, when flowing to conversion, conversion control 2 is along being perpendicular to shell Moving axially of body 1.First connecting tube 3 and the second connecting tube 4 are connected to change control 2 and outer closures device, are formed Fluid circulates.
Specifically, control 2 is first-class is interval with three through holes in conversion, and fluid intake 11 includes four isodiametric inflows Arm, fluid issuing 12 includes three diameters and flows into the outflow arm of equal diameters of arm, first flow into arm 111, the Two inflow arms 112 and the first outflow arm 121 three are more than with the first corresponding setting of through hole 21, the diameter of the first through hole 21 One flow out arm diameter but less than or equal to two flow out arms diameters.
3rd flows into arm 113 and second flows out arm 112 and the second corresponding setting of through hole 22, the second through hole 22 straight Footpath is flowed out the diameter of arm but is flowed out the diameter of arm less than or equal to two more than one.4th flows into arm 114 and the 3rd The corresponding setting of through hole 23, the diameter of third through-hole 23 flows out the diameter of arm less than or equal to one.In the present embodiment, the The diameter of one through hole 21 and the second through hole 22 flows out arm diameter equal to two, and third through-hole 23 flows out the straight of arm equal to one Footpath.But, this is not limited in any way by the present invention.
First connecting tube 3 includes that the first connecting branch 31 and the second connecting branch 32, the first connecting branch 31 and second connect Connect arm 32 to be correspondingly arranged with the first through hole 21;Second connecting tube 4 includes the 3rd connecting branch 41 and the 4th connecting branch 42, the Three connecting branches 41 are correspondingly arranged with the second connecting hole 22, and the 4th connecting branch 42 is correspondingly arranged with the 3rd connecting hole 23.
As it is shown in figure 1, when changing control 2 and being positioned at the first station, conversion control 2 blocks the first connecting tube 3 and second and connects Adapter 4, fluid circulates between fluid intake 11 and fluid issuing 12, does not enter the hydraulic cylinder on right side, hydraulic cylinder not work in figure Make.
When conversion control is to a side shifting (for moving to the top of housing in Fig. 2) at housing 1 place, change control 2 In the second station, the distance of movement is equal to the diameter flowing into arm.Oil circuit direction now is: on the converted control of fluid 2 Through hole flows into the first connecting tube 3 from fluid intake 21, then flow into outer closures device (for hydraulic cylinder in the present embodiment, hydraulic cylinder In piston the cavity of hydraulic cylinder is separated into the first cavity and the second cavity) the first cavity in, outer closures device second The fluid in cavity through hole from the second connecting tube 4 and conversion control 2 flows to fluid issuing 12.Specific as follows:
It is relative with the first through hole 21 that first inflow arm 111 flows into arm 112 with second, the first connecting branch 31 and first The other end of through hole 21 is relative, and the second outflow arm 122 and the 3rd connecting branch 41 are arranged on the both sides of the second through hole 22.This sets Put so that fluid flows into the first through hole 21, by the first connecting branch 31 through the first inflow arm 111 and the second inflow arm 112 In first cavity 200a of influent cylinder pressure;The fluid retained in second cavity 200b of hydraulic cylinder flows through the 3rd connecting branch 41 Enter the second connecting hole 22, flow out arm 122 by second and flow out, it is achieved the circulation in first direction, now hydraulic pressure in hydraulic cylinder Piston advances forward in cylinder.
Contrary, when conversion control 2 moves to the opposite side of housing 1 (moving down in Fig. 3), conversion control 2 is positioned at the Three stations, the distance of movement is equal to the diameter flowing into arm.Oil circuit direction now is: the through hole on the converted control of fluid 2 Flow into the second connecting tube 4 from fluid intake 21, then flow into second cavity of outer closures device (for hydraulic cylinder in the present embodiment) In, the through hole from the first connecting tube 3 and conversion control of the fluid in outer closures device the first cavity flows to fluid issuing 12. Specific as follows:
4th inflow arm 114 and the 4th connecting branch 42 are respectively communicated with third through-hole 23;Second connecting branch 31 and One flow out arm 121 respectively with the first through hole 21 UNICOM.This setting makes fluid flow into arm 114 through the 4th and flows into third through-hole 23, the fluid warp in the second cavity 200b by the 4th connecting branch 42 influent cylinder pressure, in hydraulic cylinder the first cavity 200a Second connecting branch the 31, first through hole 21 and the first outflow arm 121 flow out.Realize the circulation in second direction in hydraulic cylinder, Piston pushes back initial position, and piston retreats.
In the present embodiment, change control 2 shaft-like into cylinder.But, this is not limited in any way by the present invention.Real in other Executing in example, changing control 2 can be into flat column.
In the present embodiment, switching valve also include being arranged on housing 1 and drive conversion control 2 to the side of housing 1 or The actuator 5 that opposite side moves.In the present embodiment, actuator 5 is the swivelling cover being arranged on housing 1, has in swivelling cover Being symmetrical arranged two arc tracks 51, two arc tracks 51 are relative with two ends of conversion control 2.But, the present invention couple This is not limited in any way.Further, the outer surface of actuator 5 has multiple Non-slip material 52.This arranges and greatly facilitates user The station of switch transition control.
Further, for strengthening the intensity of arc track 51, in the present embodiment, swivelling cover also includes and two arcs Two reinforcements 53 that track 51 is correspondingly arranged.But, this is not limited in any way by the present invention.
In the present embodiment, switching valve is the oil circuit switching valve applied on hydraulic cylinder.But, this is not made any by the present invention Limit.In other embodiments, the switching valve that the present invention provides can be used for other fluids, and the flow direction such as water is changed.
In sum, crossing and arrange conversion control in switching valve, conversion control can move along the axis direction being perpendicular to housing Move so that conversion control is in different stations.Conversion control is at different stations, through hole thereon and fluid intake and stream Connected relation between body outlet will change.When changing control and being in the second station, fluid via through holes and first connects Pipe flow enters the first cavity in outer closures device, and the fluid in the second cavity of outer closures device is through the second connecting tube and leads to Hole is flowed out, and realizes fluid circulation in the first direction in outside closure means, and piston in hydraulic cylinder travels forward.And work as When conversion control is in three stations, fluid via through holes and the second connecting tube flow into the second cavity in outer closures device, outward Fluid in first cavity of portion's closure means flows out through the first connecting tube and through hole, realizes fluid and exist in outside closure means Circulation on second direction, piston in hydraulic cylinder is return in situ.The switching valve that the present invention provides only need to change in switching valve Conversion control can realize the change of flow direction, thus realizes automatically moving forward and backward of piston in hydraulic cylinder.Applied On hydraulic cylinder, it is not necessary to the front oil duct design of change, only need to increase a switching valve, the most greatly facilitate making of user With, also significantly reduce cost simultaneously.
Although the present invention is disclosed above by preferred embodiment, but be not limited to the present invention, any know this skill Skill person, without departing from the spirit and scope of the present invention, can make a little change and retouching, and therefore protection scope of the present invention is worked as It is as the criterion depending on claims scope required for protection.

Claims (8)

1. a switching valve, it is characterised in that including:
Housing, has fluid intake and fluid issuing in described housing;
Conversion control, along being perpendicular to being axially disposed within housing of described housing, described conversion control has multiple axis with The through hole that fluid intake direction is parallel, when flowing to conversion, conversion control is along being perpendicular to moving axially of housing;
First connecting tube and the second connecting tube, be connected to change control and outer closures device, forms fluid circulation;
When changing control and being positioned at the first station, conversion control blocks the first connecting tube and the second connecting tube, and fluid enters at fluid Circulate between mouth and fluid issuing;
When changing control and being positioned at the second station, change control from the first station to a side shifting of housing, the converted control of fluid Through hole on part flows into the first connecting tube from fluid intake, then flows in the first cavity of outer closures device, outer closures device The fluid in part the second cavity through hole from the second connecting tube and conversion control flows to fluid issuing, and fluid is at outside sealer The circulation in first direction is formed in part;
When changing control and being positioned at three stations, conversion control moves to the opposite side of housing from the first station, and fluid is converted Through hole on control flows into the second connecting tube from fluid intake, then flows in the second cavity of outer closures device, outer closures The fluid in device the first cavity through hole from the first connecting tube and conversion control flows to fluid issuing, and fluid is at outer closures The circulation in second direction is formed in device.
Switching valve the most according to claim 1, it is characterised in that described conversion control is first-class is interval with three through holes, Fluid intake includes four isodiametric inflow arms, and fluid issuing includes the stream of three diameters and the equal diameters flowing into arm Going out arm, first flows into arm, the second inflow arm and the first outflow arm three and the first corresponding setting of through hole, and first leads to The diameter in hole flows out the diameter of arm but flows out the diameter of arm less than or equal to two more than one;
3rd flows into arm and second flows out arm and the corresponding setting of the second through hole, and the diameter of the second through hole is more than an outflow The diameter of arm but flow out the diameters of arms less than or equal to two;
4th flows into arm setting corresponding with third through-hole, and the diameter of third through-hole flows out the straight of arm less than or equal to one Footpath;
First connecting tube includes the first connecting branch and the second connecting branch, the first connecting branch and the second connecting branch and first Through hole is correspondingly arranged;Second connecting tube includes that the 3rd connecting branch and the 4th connecting branch, the 3rd connecting branch and second connect Hole is correspondingly arranged, and the 4th connecting branch and the 3rd connecting hole are correspondingly arranged;
Conversion control is when station is changed, and the distance that conversion control moves to housing side or opposite side is equal to flowing into the straight of arm Footpath.
Switching valve the most according to claim 1, it is characterised in that described to change control shaft-like into cylinder.
Switching valve the most according to claim 1, it is characterised in that described switching valve also includes being arranged on housing and driving The actuator that the conversion control side to housing or opposite side move.
Switching valve the most according to claim 4, it is characterised in that described actuator is the swivelling cover being arranged on housing, There are in described swivelling cover symmetrically arranged two arc tracks, described two arc tracks and two the end phases changing control Right.
Switching valve the most according to claim 5, it is characterised in that the outer surface of described actuator has multiple Non-slip material.
Switching valve the most according to claim 5, it is characterised in that described swivelling cover also includes corresponding with two arc tracks Two reinforcements arranged.
Switching valve the most according to claim 1, it is characterised in that described outer closures device is hydraulic cylinder, in hydraulic cylinder Piston the cavity of hydraulic cylinder is separated into the first cavity and the second cavity.
CN201610958241.6A 2016-11-03 2016-11-03 Switching valve Active CN106321544B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610958241.6A CN106321544B (en) 2016-11-03 2016-11-03 Switching valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610958241.6A CN106321544B (en) 2016-11-03 2016-11-03 Switching valve

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CN106321544A true CN106321544A (en) 2017-01-11
CN106321544B CN106321544B (en) 2018-03-13

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106625422A (en) * 2017-02-13 2017-05-10 杭州众铎消防科技有限公司 Electric shearing expander
CN106678119A (en) * 2017-02-13 2017-05-17 杭州众铎消防科技有限公司 Electric expander
CN106694992A (en) * 2017-02-13 2017-05-24 杭州众铎消防科技有限公司 Electric clipper
CN106762958A (en) * 2017-02-13 2017-05-31 杭州众铎消防科技有限公司 Electronic jacking machine
CN106762959A (en) * 2017-02-13 2017-05-31 杭州欧盾机电有限公司 Flow direction conversion equipment
CN107013525A (en) * 2017-04-11 2017-08-04 杭州欧盾机电有限公司 Hydraulic means and the bending straightener with hydraulic means

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135170A (en) * 1955-12-13 1964-06-02 Starrfraesmaschinen Ag Hydraulic control for moving elements of a machine tool
CN103775441A (en) * 2014-01-26 2014-05-07 天津大学 Electrical feedback large-scale servo hydraulic cylinder driven by double motors
US20150330519A1 (en) * 2011-10-24 2015-11-19 Eaton Corporation Line pressure valve to selectively control distribution of pressurized fluid
CN206190627U (en) * 2016-11-03 2017-05-24 杭州欧盾机电有限公司 Changeover valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135170A (en) * 1955-12-13 1964-06-02 Starrfraesmaschinen Ag Hydraulic control for moving elements of a machine tool
US20150330519A1 (en) * 2011-10-24 2015-11-19 Eaton Corporation Line pressure valve to selectively control distribution of pressurized fluid
CN103775441A (en) * 2014-01-26 2014-05-07 天津大学 Electrical feedback large-scale servo hydraulic cylinder driven by double motors
CN206190627U (en) * 2016-11-03 2017-05-24 杭州欧盾机电有限公司 Changeover valve

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106625422A (en) * 2017-02-13 2017-05-10 杭州众铎消防科技有限公司 Electric shearing expander
CN106678119A (en) * 2017-02-13 2017-05-17 杭州众铎消防科技有限公司 Electric expander
CN106694992A (en) * 2017-02-13 2017-05-24 杭州众铎消防科技有限公司 Electric clipper
CN106762958A (en) * 2017-02-13 2017-05-31 杭州众铎消防科技有限公司 Electronic jacking machine
CN106762959A (en) * 2017-02-13 2017-05-31 杭州欧盾机电有限公司 Flow direction conversion equipment
CN106762959B (en) * 2017-02-13 2018-04-17 杭州欧盾机电有限公司 Flow direction conversion equipment
CN106762958B (en) * 2017-02-13 2019-01-15 杭州众铎消防科技有限公司 Electronic jacking machine
CN107013525A (en) * 2017-04-11 2017-08-04 杭州欧盾机电有限公司 Hydraulic means and the bending straightener with hydraulic means

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Address after: Hangzhou City, Zhejiang province 310000 Binjiang District River Street No. 688 bin An Lu 2 E floor room 157

Patentee after: Europe Shield Technology Co., Ltd.

Address before: Hangzhou City, Zhejiang province 310000 Binjiang District River Street No. 688 bin An Lu 2 E floor room 157

Patentee before: Hangzhou Oudun Electromechanical Co., Ltd.

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