CN106321544B - Switching valve - Google Patents
Switching valve Download PDFInfo
- Publication number
- CN106321544B CN106321544B CN201610958241.6A CN201610958241A CN106321544B CN 106321544 B CN106321544 B CN 106321544B CN 201610958241 A CN201610958241 A CN 201610958241A CN 106321544 B CN106321544 B CN 106321544B
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- CN
- China
- Prior art keywords
- fluid
- hole
- control
- housing
- branch pipe
- Prior art date
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Classifications
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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
Abstract
The present invention provides a kind of switching valve, and switching valve includes housing, conversion control, the first connecting tube and the second connecting tube.There is fluid intake and fluid issuing in housing.Control is changed along being axially disposed within housing perpendicular to housing, changing on control has multiple axis through hole parallel with fluid intake direction, and control is changed along the axial movement perpendicular to housing when flowing to and changing.First connecting tube and the second connecting tube, conversion control and outer closures device are connected to, form fluid circulation.
Description
Technical field
The present invention relates to hydraulic machinery field, and more particularly to a kind of switching valve.
Background technology
Switching valve is a kind of part that can change flow direction.To realize the reciprocating motion of piston in hydraulic cylinder, generally need
The switching valve that oil circuit direction can be changed is set in hydraulic cylinder.The structure of existing hydraulic cylinder generally has two kinds, Yi Zhongshi：Liquid
Oil circuit can only be circulated in one direction after entering hydraulic cylinder in cylinder pressure, i.e., can only drive piston advances forward, piston
Retrogressing then need manual draining after could realize, user use it is very inconvenient, operating efficiency is very low.
Another method is：To realize that the automatic of piston is retracted, oil circuit conversion can be configured in hydraulic cylinder on the market at present
Valve, so as to turn into bidirectional hydraulic.However, in the hydraulic cylinder of this structure, complicated and oil circuit the distribution of oil circuit switching valve
Also it is very complicated, this not only cost is high and oil circuit between sealing also have larger hidden danger.
The content of the invention
The present invention is for overcome the deficiencies in the prior art, there is provided a kind of switching valve.
To achieve these goals, the present invention, which provides a kind of switching valve, includes housing, conversion control, the first connecting tube and the
Two connecting tubes.There is fluid intake and fluid issuing in housing.Control edge being axially disposed within housing perpendicular to housing is changed,
Changing on control has multiple axis through hole parallel with fluid intake direction, and control is changed along perpendicular to shell when flowing to and changing
The axial movement of body.First connecting tube and the second connecting tube, conversion control and outer closures device are connected to, form fluid
Circulation.
When conversion control is located at the first station, conversion control blocks the first connecting tube and the second connecting tube, fluid are flowing
Circulated between body entrance and fluid issuing.
When conversion control is located at second station, side movement of the conversion control from the first station to housing, fluid is through turning
The through hole changed on control flows into the first connecting tube from fluid intake, then flows into the first cavity of outer closures device, outside envelope
The fluid closed in the cavity of device second flows to fluid issuing from the through hole in the second connecting tube and conversion control, and fluid seals in outside
Close in device and form the circulation in first direction.
When conversion control is located at 3rd station, opposite side movement of the conversion control from the first station to housing, fluid warp
The through hole changed on control flows into the second connecting tube from fluid intake, then flows into the second cavity of outer closures device, outside
Fluid in the cavity of closure means first flows to fluid issuing from the through hole in the first connecting tube and conversion control, and fluid is in outside
The circulation in second direction is formed in closure means.
In one embodiment of the invention, conversion control is first-class to be interval with three through holes, and it is straight that fluid intake includes four grades
The inflow branch pipe in footpath, the fluid issuing outflow branch pipe that to include three diameters equal with the diameter for flowing into branch pipe, the first inflow branch pipe,
Second flows into branch pipe and the first outflow branch pipe three setting corresponding with first through hole, and the diameter of first through hole is more than an outflow
The diameter of the diameter of branch pipe but less than or equal to two outflow branch pipes；
3rd flows into branch pipe and the second outflow branch pipe setting corresponding with the second through hole, and the diameter of the second through hole is more than one
Flow out the diameter of the diameter of branch pipe but less than or equal to two outflow branch pipes；
4th flows into branch pipe setting corresponding with third through-hole, and the diameter of third through-hole is less than or equal to an outflow branch pipe
Diameter；
First connecting tube includes 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 is correspondingly arranged with the 3rd connecting hole；
Control is changed when station is changed, the distance that conversion control moves to housing side or opposite side, which is equal to, flows into branch pipe
Diameter.
In one embodiment of the invention, it is shaft-like into cylinder to change control.
In one embodiment of the invention, switching valve also includes being arranged on housing and driving side of the conversion control to housing
Or the actuator of opposite side movement.
In one embodiment of the invention, actuator is the swivelling cover being arranged on housing, has in swivelling cover and is symmetrical arranged
Two arc tracks, two arc tracks with change control two ends it is relative.
In one embodiment of the invention, the outer surface of actuator has multiple Non-slip materials.
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 summary, switching valve prior art provided by the invention, which is compared, has advantages below：
By setting conversion control in switching valve, conversion control can be moved along the axis direction perpendicular to housing to cause
Conversion control is in different stations.Control is changed in different stations, through hole thereon and fluid intake and fluid issuing it
Between connected relation will change.When conversion control is in second station, fluid via through holes and the inflow of the first connecting tube are outer
The first cavity in portion's closure means, the fluid in the second cavity of outer closures device flow out through the second connecting tube and through hole,
The circulation of fluid in the first direction is realized in outside closure means, piston in hydraulic cylinder travels forward.And when conversion control
When part is in 3rd station, the second cavity in fluid via through holes and the second connecting tube inflow 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 retract original position.
The change of flow direction can be achieved in the conversion control that switching valve provided by the invention need to only change in switching valve, from
And realize the automatic of piston in hydraulic cylinder and move forward and backward.Applied on hydraulic cylinder, the front oil duct without change designs, only
A switching valve need to be increased, it is not only greatly convenient for users to use, while also significantly reduce cost.
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.
Brief description of the drawings
Fig. 1 show structural representation of the switching valve of one embodiment of the invention offer in the first station.
The switching valve that Fig. 2 is shown shown in Fig. 1 is located at structural representation during second station.
The switching valve that Fig. 3 is shown shown in Fig. 1 is located at structural representation during 3rd station.
Fig. 4 show the structural representation of actuator in Fig. 1.
Embodiment
The switching valve that the present embodiment provides includes housing 1, conversion control 2, the first connecting tube 3 and the second connecting tube 4.Housing
There is fluid intake 11 and fluid issuing 12 in 1.Control 2 is changed along being axially disposed within housing 1 perpendicular to housing 1, conversion
There is multiple axis through hole parallel with the direction of fluid intake 11 on control 2, control 2 is changed along perpendicular to shell when flowing to and changing
The axial movement of body 1.First connecting tube 3 and the second connecting tube 4 are connected to conversion control 2 and outer closures device, are formed
Fluid circulation.
Specifically, control 2 is first-class is interval with three through holes for conversion, and fluid intake 11 includes four isodiametric inflows
Branch pipe, the outflow branch pipe that to include three diameters equal with the diameter for flowing into branch pipe of fluid issuing 12, the first inflow branch pipe 111, the
Two inflow branch pipes 112 and first flow out the three of branch pipe 121 and are more than with 21 corresponding setting of first through hole, the diameter of first through hole 21
The diameter of the diameter of one outflow branch pipe but less than or equal to two outflow branch pipes.
3rd, which flows into branch pipe 113 and second, flows out branch pipe 112 and the 22 corresponding setting of the second through hole, the second through hole 22 it is straight
Footpath is more than the diameter of the diameter of an outflow branch pipe but less than or equal to two outflow branch pipes.4th flows into branch pipe 114 and the 3rd
23 corresponding setting of through hole, the diameter of third through-hole 23 are less than or equal to the diameter of an outflow branch pipe.In the present embodiment, the
The diameter of one through hole 21 and the second through hole 22 is equal to two outflow branch pipe diameters, and third through-hole 23 is equal to one and flows out the straight of branch pipe
Footpath.However, the present invention is not limited in any way to this.
First connecting tube 3 includes the first connecting branch 31 and the second connecting branch 32, and the first connecting branch 31 and second connects
Branch pipe 32 is connect to be correspondingly arranged with 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 shown in figure 1, when conversion control 2 is located at the first station, first connecting tube of the conversion closure of control 23 and second connects
Adapter 4, fluid circulate between fluid intake 11 and fluid issuing 12, do not enter in figure the hydraulic cylinder on right side, hydraulic cylinder not work
Make.
When side movement (in Fig. 2 be to the top of housing move) of the conversion control to the place of housing 1, control 2 is changed
In second station, mobile distance is equal to the diameter for flowing into branch pipe.Oil circuit direction now is：On the converted control 2 of fluid
Through hole flows into the first connecting tube 3 from fluid intake 21, then flow into outer closures device (be hydraulic cylinder in the present embodiment, hydraulic cylinder
The cavity of hydraulic cylinder is separated into the first cavity and the second cavity by interior piston) the first cavity in, outer closures device second
Fluid in cavity flows to fluid issuing 12 from the through hole in the second connecting tube 4 and conversion control 2.It is specific as follows：
First, which flows into branch pipe 111 and second, flows into branch pipe 112 and first through hole 21 relatively, the first connecting branch 31 and first
The other end of through hole 21 is relative, and the second outflow connecting branch 41 of branch pipe 122 and the 3rd is arranged on the both sides of the second through hole 22.This sets
Put so that fluid flows into branch pipe 111 and second through first flows into the inflow first through hole 21 of branch pipe 112, by the first connecting branch 31
Flow into the first cavity 200a of hydraulic cylinder；The fluid retained in second cavity 200b of hydraulic cylinder flows through the 3rd connecting branch 41
Enter the second connecting hole 22, flowed out by the second outflow branch pipe 122, realize the circulation in first direction in hydraulic cylinder, now hydraulic pressure
Piston advances forward in cylinder.
Opposite, when conversion control 2 moves (being moved down in Fig. 3) to the opposite side of housing 1, conversion control 2 is positioned at the
Three stations, mobile distance are equal to the diameter for flowing into branch pipe.Oil circuit direction now is：Through hole on the converted control 2 of fluid
The second connecting tube 4 is flowed into from fluid intake 21, then flows into the second cavity of outer closures device (being hydraulic cylinder in the present embodiment)
Interior, the fluid in the cavity of outer closures device first flows to fluid issuing 12 from the through hole in the first connecting tube 3 and conversion control.
It is specific as follows：
The 4th inflow connecting branch 42 of branch pipe 114 and the 4th is respectively communicated with third through-hole 23；Second connecting branch 31 and
One outflow branch pipe 121 respectively with the UNICOM of first through hole 21.The setting causes fluid to flow into branch pipe 114 through the 4th and flow into third through-hole
23, flowed into by the 4th connecting branch 42 in second cavity 200b of hydraulic cylinder, the fluid warp in the first cavity of hydraulic cylinder 200a
Second connecting branch 31, first through hole 21 and first flow out branch pipe 121 and flowed out.The circulation in second direction in hydraulic cylinder is realized,
Piston is pushed back into initial position, piston retreats.
In the present embodiment, it is shaft-like into cylinder to change control 2.However, the present invention is not limited in any way to this.In other realities
Apply in example, it can be flat column to change control 2.
In the present embodiment, switching valve also include being arranged on housing 1 and drive change control 2 to the side of housing 1 or
The actuator 5 of opposite side movement.In the present embodiment, actuator 5 is the swivelling cover being arranged on housing 1, is had in swivelling cover
Two arc tracks 51 are symmetrical arranged, two arc tracks 51 are relative with two ends for changing control 2.However, the present invention is right
This is not limited in any way.Further, the outer surface of actuator 5 has multiple Non-slip materials 52.The setting greatly facilitates user
The station of switch transition control.
Further, to strengthen the intensity of arc track 51, in the present embodiment, also include and two arcs on swivelling cover
Two reinforcements 53 that track 51 is correspondingly arranged.However, the present invention is not limited in any way to this.
In the present embodiment, switching valve is the oil circuit switching valve applied on hydraulic cylinder.However, the present invention this is not made it is any
Limit.In other embodiments, switching valve provided by the invention can be used for other fluids, as the flow direction of water is changed.
In summary, cross and conversion control is set in switching valve, conversion control can be along the axis direction shifting perpendicular to housing
Move and be in different stations to change control.Control is changed in different stations, through hole and fluid intake and stream thereon
Connected relation between body outlet will change.When conversion control is in second station, fluid via through holes and the first connection
The first cavity that pipe is flowed into outer closures device, fluid in the second cavity of outer closures device is through the second connecting tube and logical
Hole is flowed out, and the circulation of fluid in the first direction is realized in outside closure means, piston in hydraulic cylinder travels forward.And work as
When conversion control is in 3rd station, the second cavity in fluid via through holes and the second connecting tube inflow outer closures device, outside
Fluid in first cavity of portion's closure means flows out through the first connecting tube and through hole, realizes that fluid exists in outside closure means
Circulation on second direction, piston in hydraulic cylinder retract original position.Switching valve provided by the invention need to only change in switching valve
It is the change that flow direction can be achieved to change control, so as to realize that the automatic of piston in hydraulic cylinder moves forward and backward.Applied
On hydraulic cylinder, the front oil duct without change designs, and only need to increase a switching valve, not only greatly facilitate making for user
With, while also significantly reduce cost.
Although the present invention is disclosed above by preferred embodiment, but is not limited to the present invention, this any known skill
Skill person, without departing from the spirit and scope of the present invention, a little change and retouching can be made, therefore protection scope of the present invention is worked as
It is defined depending on claims scope claimed.
Claims (7)
- A kind of 1. switching valve, it is characterised in that including：Housing, the housing is interior to have fluid intake and fluid issuing；Change control, along being axially disposed within housing perpendicular to the housing, have on the conversion control multiple axis with The parallel through hole in fluid intake direction, control is changed along the axial movement perpendicular to housing when flowing to and changing；First connecting tube and the second connecting tube, conversion control and outer closures device are connected to, form fluid circulation；When conversion control is located at the first station, conversion control blocks the first connecting tube and the second connecting tube, fluid enter in fluid Circulated between mouth and fluid issuing；When conversion control is located at second station, side movement of the conversion control from the first station to housing, the converted control of fluid Through hole on part flows into the first connecting tube from fluid intake, then flows into the first cavity of outer closures device, outer closures device Fluid in the cavity of part second flows to fluid issuing from the through hole in the second connecting tube and conversion control, and fluid is in outside sealer The circulation in first direction is formed in part；When conversion control is located at 3rd station, opposite side of the conversion control from the first station to housing moves, and fluid is converted Through hole on control flows into the second connecting tube from fluid intake, then flows into the second cavity of outer closures device, outer closures Fluid in the cavity of device first flows to fluid issuing from the through hole in the first connecting tube and conversion control, and fluid is in outer closures The circulation in second direction is formed in device；Control is first-class is interval with three through holes for the conversion, and fluid intake includes four isodiametric inflow branch pipes, and fluid goes out Mouth includes three diameters outflow branch pipe equal with the diameter of inflow branch pipe, and first flows into branch pipe, the second inflow branch pipe and first Flow out branch pipe three setting corresponding with first through hole, the diameter of first through hole be more than a diameter for flowing out branch pipe but be less than or The diameter of equal to two outflow branch pipes；3rd flows into branch pipe and the second outflow branch pipe setting corresponding with the second through hole, and the diameter of the second through hole is more than an outflow The diameter of the diameter of branch pipe but less than or equal to two outflow branch pipes；4th flows into branch pipe setting corresponding with third through-hole, and the diameter of third through-hole is less than or equal to one and flows out the straight of branch pipe 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 the 3rd connecting branch and the 4th connecting branch, the 3rd connecting branch and the second through hole It is correspondingly arranged, the 4th connecting branch is correspondingly arranged with third through-hole；Control is changed when station is changed, the distance that conversion control moves to housing side or opposite side, which is equal to, flows into the straight of branch pipe Footpath.
- 2. switching valve according to claim 1, it is characterised in that described to change control shaft-like into cylinder.
- 3. switching valve according to claim 1, it is characterised in that the switching valve also includes being arranged on housing and driving Change the actuator that control moves to the side of housing or opposite side.
- 4. switching valve according to claim 3, it is characterised in that the actuator is the swivelling cover being arranged on housing, There are symmetrically arranged two arc tracks, two arc tracks and two end phases for changing control in the swivelling cover It is right.
- 5. switching valve according to claim 4, it is characterised in that the outer surface of the actuator has multiple Non-slip materials.
- 6. switching valve according to claim 4, it is characterised in that the swivelling cover also includes corresponding with two arc tracks Two reinforcements set.
- 7. switching valve according to claim 1, it is characterised in that the 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.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321544A CN106321544A (en) | 2017-01-11 |
| CN106321544B true CN106321544B (en) | 2018-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610958241.6A Active CN106321544B (en) | 2016-11-03 | 2016-11-03 | Switching valve |
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| Country | Link |
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| CN (1) | CN106321544B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694992A (en) * | 2017-02-13 | 2017-05-24 | 杭州众铎消防科技有限公司 | Electric clipper |
| CN106762959B (en) * | 2017-02-13 | 2018-04-17 | 杭州欧盾机电有限公司 | Flow direction conversion equipment |
| CN106678119B (en) * | 2017-02-13 | 2019-01-18 | 杭州众铎消防科技有限公司 | Electric dilator |
| CN106762958B (en) * | 2017-02-13 | 2019-01-15 | 杭州众铎消防科技有限公司 | Electric top supporting device |
| CN106581879A (en) * | 2017-02-13 | 2017-04-26 | 杭州众铎消防科技有限公司 | Electric hydraulic device |
| CN106625422B (en) * | 2017-02-13 | 2019-08-20 | 杭州众铎消防科技有限公司 | Electric cutting and expanding device |
| CN107013525B (en) * | 2017-04-11 | 2018-08-17 | 欧盾科技有限公司 | Hydraulic device and bending straightener with hydraulic device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE553194A (en) * | 1955-12-13 | 1900-01-01 | ||
| US9488285B2 (en) * | 2011-10-24 | 2016-11-08 | Eaton Corporation | Line pressure valve to selectively control distribution of pressurized fluid |
| CN103775441B (en) * | 2014-01-26 | 2015-11-18 | 天津大学 | The electricity of Dual-motors Driving feeds back large-scale servo hydraulic cylinder |
| CN206190627U (en) * | 2016-11-03 | 2017-05-24 | 杭州欧盾机电有限公司 | Changeover valve |
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2016
- 2016-11-03 CN CN201610958241.6A patent/CN106321544B/en active Active
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| CN106321544A (en) | 2017-01-11 |
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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. |