CN108758003B - A kind of hydraulic control-hand-operated double controlled reversal valve - Google Patents
A kind of hydraulic control-hand-operated double controlled reversal valve Download PDFInfo
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- CN108758003B CN108758003B CN201810612225.0A CN201810612225A CN108758003B CN 108758003 B CN108758003 B CN 108758003B CN 201810612225 A CN201810612225 A CN 201810612225A CN 108758003 B CN108758003 B CN 108758003B
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- hydraulic fluid
- fluid port
- spring
- spool
- piston
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
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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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/048—Electromagnetically actuated 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
- F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid Mechanics (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention proposes a kind of hydraulic control-hand-operated double controlled reversal valve, comprising: the first valve casing；Spool；First spring base；Second spring seat；Second valve casing；Piston；Attachment spacers；First spring；Second spring；End cap；Wherein, the spool moves between first position, the second position and the third place.Hydraulic control according to an embodiment of the present invention-hand-operated double controlled reversal valve, simple and compact for structure, manufacturing cost is low, is convenient for Integrated design.
Description
Technical field
The present invention relates to control valve technical fields, more particularly to a kind of hydraulic control-hand-operated double controlled reversal valve.
Background technique
Currently, having widely applied the double behaviour's reversal valves of manually-hydraulic control in walking machine equipment, this product can both pass through control
Solenoid valve processed realizes remote-controlled operation, can also be realized by operation handle and closely be controlled, equipment used very convenient.
But the double behaviour's reversal valves of manual-hydraulic control in the market are mostly multiple directional control valve form, are above had the disadvantage that in application
(1) valve body is formed by cast casting, and runner is fixed, and several double behaviour's reversal valves is linked together by bolt, no
Conducive to Integration Design, it is difficult to realize complicated hydraulic circuit control.
(2) structure is complex, bulky, is unfavorable for applying in small and light machine equipment.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, manufacturing cost is low an object of the present invention is to provide a kind of simple and compact for structure, it is convenient for Integrated design
Hydraulic control-hand-operated double controlled reversal valve.
A kind of hydraulic control-hand-operated double controlled reversal valve according to an embodiment of the present invention, comprising:
First valve casing has the first valve opening for penetrating through first valve casing in left-right direction on first valve casing, described
There is arranged for interval in left-right direction and the first hydraulic fluid port being connected to first valve opening, the second oil on the side wall of first valve casing
Mouth and third hydraulic fluid port, the right opening of first valve opening are configured to the 4th hydraulic fluid port；
Spool, the spool can be movably located in first valve opening, had on the spool and are open to the right
Blind hole has the through flow hole for being connected to the blind hole on the side wall of the spool, and the through flow hole is adjacent to the left end of the spool, institute
Stating has through-flow slot on the periphery wall of spool；
Left end has the first spring base of flanging, and first spring base is contained in the left end of first valve opening and described
The right side of flanging is resisted against the left side of first valve casing, and the right end of first spring base has first through hole, described
The left side of spool is against the right side of first spring base；
Second spring seat, left side and flanging appearance of the right side of the second spring seat against first valve casing
It is contained in the right end of the second spring seat, the left end of the second spring seat has the second through-hole, the hole of second through-hole
Diameter is greater than the aperture of the first through hole；
Second valve casing, second valve casing has penetrates through the second valve opening of second valve casing in left-right direction, and described the
The left end of two spring bases and first valve casing cooperates the internal perisporium of second valve opening in the right end of second valve casing
The upper stage portion with against the left side of the second spring seat；
Piston, the piston can be movably located in second valve casing, and the right end of the piston sequentially passes through institute
It states the second through-hole and the first through hole and is connected with the left end of the spool, the piston includes being adapted to the first through hole
Undergauge section and the main paragraph that is adapted to second through-hole, the main paragraph be located at the tool of the part on the left of the second spring seat
It dashes forward stupefied, the outer peripheral surface for dashing forward stupefied is adapted with the inner peripheral surface of second valve opening, is had on second valve casing and is located at institute
State the 5th hydraulic fluid port in stupefied left side of dashing forward and the 6th hydraulic fluid port positioned at the stupefied right side of dashing forward；
With left folding while and attachment spacers when right folding, the attachment spacers is socketed in the right end of the main paragraph, described
Left folding while left side against the second spring seat and the right folding while left side against the right side of the main paragraph；
First spring, first spring pocket is in the undergauge section, and the left end of first spring is against the right folding
The right end of side and first spring is against first spring base；
Second spring, the second spring cover on first spring, and the left end of the second spring is against the left side
Flanging and the right end of the second spring are resisted against on first spring base；
End cap, the end cap are located at the left opening that second valve opening is closed on second valve casing；
Handleset, the Handleset include:
Fixed ring, the fixed ring are socketed on the end cap；
First connecting rod, the right end of the first connecting rod is pivotly connected with the fixed ring and a left side for the first connecting rod
End extends to the left and protrudes from the left side of the end cap；
Handle, the middle part of the handle are pivotly connected with the left end of the first connecting rod；
Second connecting rod, the left end of the second connecting rod are pivotly connected with the lower end of the handle, the second connecting rod
Right end pass through the end cap to the right and be connected with the left end of the piston；
Wherein, the spool moves between first position, the second position and the third place.
Advantageously, when the spool is in the first position, the 5th hydraulic fluid port, the 6th hydraulic fluid port and described
Handleset does not apply active force to the piston, and the spool makes first hydraulic fluid port, second hydraulic fluid port, the third
Hydraulic fluid port disconnects between any two with the 4th hydraulic fluid port.
Advantageously, when the spool is in the second position, the 6th hydraulic fluid port, the Handleset be not to institute
It states piston and applies active force, the piston is pushed first described in the piston overpowers by the external force injected as the 5th hydraulic fluid port
Spring and the elastic force of the second spring move right, and then the spool is driven to move right, until the spool make it is described
First hydraulic fluid port passes sequentially through that the through flow hole and the blind hole are connected with the 4th hydraulic fluid port, the spool makes second hydraulic fluid port
It is connected to the third hydraulic fluid port by the through-flow slot.
Advantageously, when the spool is in the third place, the 5th hydraulic fluid port, the Handleset be not to institute
It states piston and applies active force, the piston is pushed first described in the piston overpowers by the external force injected as the 6th hydraulic fluid port
Spring and the elastic force of the second spring are moved to the left, and then drive the spool together with first spring base to moving to left
It is dynamic, until described in the spool is connected to first hydraulic fluid port by the through-flow slot with second hydraulic fluid port, the spool makes
Third hydraulic fluid port is connected to by first valve opening with the 4th hydraulic fluid port.
Advantageously, when the spool is in the second position, the 5th hydraulic fluid port, the 6th hydraulic fluid port be not to institute
It states piston and applies active force, the piston is pushed the piston overpowers by the external force that the Handleset applies from left to right
First spring and the elastic force of the second spring move right, and then the spool is driven to move right, until the valve
Core make first hydraulic fluid port pass sequentially through the through flow hole and the blind hole be connected with the 4th hydraulic fluid port, the spool make it is described
Second hydraulic fluid port is connected to the third hydraulic fluid port by the through-flow slot.
Advantageously, when the spool is in the third place, the 5th hydraulic fluid port, the 6th hydraulic fluid port be not to institute
It states piston and applies active force, the external force that the piston is applied by the Handleset right-to-left is to push described in piston overpowers
First spring and the elastic force of the second spring are moved to the left, so drive the spool together with first spring base to the left
Mobile, until the spool makes, first hydraulic fluid port is connected to second hydraulic fluid port by the through-flow slot, the spool makes institute
Third hydraulic fluid port is stated to be connected to by first valve opening with the 4th hydraulic fluid port.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is hydraulic control according to an embodiment of the invention-hand-operated double controlled reversal valve schematic diagram；
Fig. 2 is the cross-sectional view of the line C-C in Fig. 1；
Fig. 3 is the schematic diagram of hydraulic control according to an embodiment of the invention-hand-operated double controlled reversal valve Handleset；
Fig. 4 is hydraulic control according to an embodiment of the invention-hand-operated double controlled reversal valve schematic diagram.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings it is described in detail hydraulic control according to an embodiment of the present invention-hand-operated double controlled reversal valve.
A kind of hydraulic control-hand-operated double controlled reversal valve according to an embodiment of the present invention, comprising: the first valve casing 1, spool 2, the first bullet
Spring abutment 3, second spring seat 4, the second valve casing 5, piston 6, attachment spacers 7, the first spring 8, second spring 9, end cap 10, handle group
Part 11.
Specifically, there is the first valve opening for penetrating through the first valve casing 1 in left-right direction, first valve casing on the first valve casing 1
Side wall on there is arranged for interval and the first hydraulic fluid port B being connected to first valve opening, the second hydraulic fluid port P in left-right direction and the
Three hydraulic fluid port A, the right opening of first valve opening are configured to the 4th hydraulic fluid port T.
Spool 2 can be movably located in first valve opening, have the blind hole 21 of opening to the right, spool 2 on spool 2
Side wall on there is the through flow hole 22 of connection blind hole 21, through flow hole 22 has on the left end of spool 2, the periphery wall of spool 2
Through-flow slot 23.
The left end of first spring base 3 has flanging 31, and the first spring base 3 is contained in the left end of first valve opening and flanging
31 right side is resisted against the left side of the first valve casing 1, and the right end of the first spring base 3 has first through hole, the left side of spool 2
Against the right side of the first spring base 3.
The right side of second spring seat 4 against the first valve casing 1 left side and flanging 31 be contained in the right side of second spring seat 4
In end so that the first spring base 3 can be moved left and right relative to second spring seat 4 and so that the first spring base 3 relative to the first valve
Shell 1 can move left and right, and the left end of second spring seat 4 has the second through-hole, and it is logical that the aperture of second through-hole is greater than described first
The aperture in hole.
Second valve casing 5 has the second valve opening for penetrating through the second valve casing 5 in left-right direction, second spring seat 4 and the first valve
The left end of shell 1 cooperates in the right end of the second valve casing 5, has on the internal perisporium of second valve opening against second spring seat 4
The stage portion 51 of left side.
Piston 6 can be movably located in the second valve casing 5, and the right end of piston 6 sequentially passes through second through-hole and institute
It states first through hole and is connected with the left end of spool 2, piston 6 includes the undergauge section 61 being adapted to the first through hole and with described
The main paragraph 62 of two through-holes adaptation, main paragraph 62 are located at the part in the left side of second spring seat 4 with dashing forward stupefied 63, dash forward stupefied 63 periphery
Face is adapted with the inner peripheral surface of second valve opening, is had the 5th hydraulic fluid port X for being located at stupefied 63 left side of dashing forward on the second valve casing 5 and is located at
Dash forward it is stupefied 63 right side the 6th hydraulic fluid port Y.
Attachment spacers 7 have left folding while and when right folding, attachment spacers 7 is socketed in the right end of main paragraph 62, the left folding side
Left side against second spring seat 4 and the right folding side left side against the right side of main paragraph 62.
First 8 sets of spring is in undergauge section 61, and the left end of the first spring 8 is against the right folding side and the right side of the first spring 8
End is against the first spring base 3.
9 sets of second spring on the first spring 8, the left end of second spring 9 is against the left folding side and the right side of second spring 9
End is against flanging 31.
End cap 10 is located at the left opening that second valve opening is closed on the second valve casing 5.It is understood that dash forward stupefied 63,
Space defined by second valve opening and end cap 10 constitutes left control chamber 5a, stupefied 63, second valve opening and second of dashing forward
Space defined by spring base 4 constitutes right control chamber 5b.
Handleset 11 includes: fixed ring 111, first connecting rod 112, handle 113, second connecting rod 114.111 sets of fixed ring
It connects on end cap 10.The right end of first connecting rod 112 is pivotly connected (such as hinged, pin shaft is connect) with fixed ring 111, the
The left end of one connecting rod 112 extends to the left and protrudes from the left side of end cap 10.The middle part of handle 113 and a left side for first connecting rod 112
End is pivotly connected (such as hinged, pin shaft connection etc.).The left end of second connecting rod 114 and the lower end of handle 113 are pivotly
Be connected (such as hinged, pin shaft connection etc.), and the right end of second connecting rod 114 passes through to the right end cap 10 and is connected with the left end of piston 6.
Wherein, spool 2 moves between first position, the second position and the third place.What needs to be explained here is that described
First position is initial position as shown in Figure 1；The second position is that piston 6 receives external force with the first position and is
Starting point moves from left to right, and to move from left to right with movable valve plug 2, (after external force disappears, piston 6 is in the first spring 8 and second
Band movable valve plug 2 is restored to initial position from the second position under the action of 9 restoring force of spring)；The third place is that piston 6 receives
External force is mobile by starting point right-to-left of the first position, mobile (when external force disappears with band 2 right-to-left of movable valve plug
Afterwards, the band movable valve plug 2 under the action of the first spring 8 and 9 restoring force of second spring of piston 6 is restored to initial bit from the third place
It sets).
More specifically, by external force, (i.e. the 5th hydraulic fluid port X is or not piston 6 when spool 2 is in the first position
Inject hydraulic oil in control chamber 5a to the left, while the 6th hydraulic fluid port Y does not also inject hydraulic oil in control chamber 5b to the right), spool 1 makes the
One hydraulic fluid port B, the second hydraulic fluid port P, third hydraulic fluid port B and the 4th hydraulic fluid port T are disconnected between any two.
When spool 2 is in the second position, piston 6 is injected the external force of left control chamber 5a (i.e. by by the 5th hydraulic fluid port X
The pressure of hydraulic oil, the oil liquid in right control chamber 5b is discharged from the 6th hydraulic fluid port Y at this time) push piston 6 to overcome the first spring 8 and the
The elastic force of two springs 9 moves right, and then moves right with movable valve plug 2, until to pass sequentially through the first hydraulic fluid port B through-flow for spool 2
Hole 22 and blind hole 21 connect with the 4th hydraulic fluid port T-phase, spool 2 is connected to the second hydraulic fluid port P by through-flow slot 23 with third hydraulic fluid port A.
When spool 2 is in the third place, piston 6 is by external force (the i.e. liquid for injecting right cavity 5b by the 6th hydraulic fluid port Y
The pressure of pressure oil, the oil liquid in left cavity 5a is discharged from the 5th hydraulic fluid port X at this time) push piston 6 to overcome the first spring 8 and the second bullet
The elastic force of spring 9 is moved to the left, and then is moved to the left together with movable valve plug 2 and the first spring base 3, until spool 2 makes the first hydraulic fluid port B
It is connected to the second hydraulic fluid port P by through-flow slot 23, spool 2 is connected to third hydraulic fluid port A with the 4th hydraulic fluid port T by first valve opening.
Three cases above may be implemented hydraulic control by the switching of the 5th hydraulic fluid port X, the 6th hydraulic fluid port Y pressure, control pushed to live
6 band movable valve plug 2 of plug is moved left and right to realize commutation function.
When controlling commutation according to handle, then the 5th hydraulic fluid port X, the 6th hydraulic fluid port Y are not connected to hydraulic oil, to realize to basis
A kind of hydraulic control-hand-operated double controlled reversal valve of the embodiment of the present invention manually controls.It is specific as follows:
When spool 2 is in the first position, for piston 6 not by the external force from Handleset, spool 1 makes
One hydraulic fluid port B, the second hydraulic fluid port P, third hydraulic fluid port B and the 4th hydraulic fluid port T are disconnected between any two.
When spool 2 is in the second position, the external force that piston 6 is applied from left to right by Handleset 11 is (that is, hand
Handle 113, by rotation counterclockwise, drives second connecting rod 114 to move from left to right using its hinge joint with first connecting rod 112 as fulcrum
It is dynamic) it is moved right with the elastic force for pushing piston 6 to overcome the first spring 8 and second spring 9, and then move right with movable valve plug 2, directly
To spool 2 make the first hydraulic fluid port B pass sequentially through through flow hole 22 and blind hole 21 and the 4th hydraulic fluid port T-phase connect, spool 2 make the second hydraulic fluid port P with
Third hydraulic fluid port A is connected to by through-flow slot 23.
When spool 2 is in the third place, the external force that piston 6 is applied by 11 right-to-left of Handleset is (that is, hand
Handle 113 is rotated clockwise using its hinge joint with first connecting rod 112 as fulcrum, and 114 right-to-left of second connecting rod is driven to move
It is dynamic) it is moved to the left with the elastic force for pushing piston 6 to overcome the first spring 8 and second spring 9, and then with movable valve plug 2 and the first spring
Seat 3 is moved to the left together, until spool 2 is connected to the first hydraulic fluid port B and the second hydraulic fluid port P by through-flow slot 23, spool 2 keeps third oily
Mouth A is connected to by first valve opening with the 4th hydraulic fluid port T.
Three cases above may be implemented closely to be manually operated by Handleset 11.
A kind of hydraulic control-hand-operated double controlled reversal valve according to an embodiment of the present invention is manually controlled and is had the advantage that
(1) plug-in design, structure are simple, are convenient for Integration Design；
(2) it can both be controlled with hydraulic control, also may be implemented to manually control.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, unless separately
There is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are within the scope of the invention to above-mentioned implementation
Example be changed, modify, replacement and variant, each fall within protection scope of the present invention.
Claims (6)
1. a kind of hydraulic control-hand-operated double controlled reversal valve characterized by comprising
First valve casing, has the first valve opening for penetrating through first valve casing in left-right direction on first valve casing, and described first
Have on the side wall of valve casing in left-right direction arranged for interval and the first hydraulic fluid port being connected to first valve opening, the second hydraulic fluid port and
The right opening of third hydraulic fluid port, first valve opening is configured to the 4th hydraulic fluid port；
Spool, the spool can be movably located in first valve opening, have the blind hole of opening to the right on the spool,
There is the through flow hole for being connected to the blind hole, the through flow hole is adjacent to the left end of the spool, the valve on the side wall of the spool
There is through-flow slot on the periphery wall of core；
Left end has the first spring base of flanging, and first spring base is contained in the left end of first valve opening and the flanging
Right side be resisted against the left side of first valve casing, the right end of first spring base has first through hole, the spool
Left side against the right side of first spring base；
Second spring seat, the right side of the second spring seat against first valve casing left side and the flanging be contained in
In the right end of the second spring seat, the left end of the second spring seat has the second through-hole, and the aperture of second through-hole is big
In the aperture of the first through hole；
Second valve casing, second valve casing have the second valve opening for penetrating through second valve casing in left-right direction, second bullet
The left end of spring abutment and first valve casing cooperates in the right end of second valve casing, has on the internal perisporium of second valve opening
There is the stage portion against the left side of the second spring seat；
Piston, the piston can be movably located in second valve casing, and the right end of the piston sequentially passes through described
Two through-holes and the first through hole are simultaneously connected with the left end of the spool, and the piston includes the contracting being adapted to the first through hole
Diameter section and the main paragraph being adapted to second through-hole, the main paragraph are located at the part on the left of the second spring seat with prominent
Stupefied, the outer peripheral surface for dashing forward stupefied is adapted with the inner peripheral surface of second valve opening, is had on second valve casing and is located at described dash forward
5th hydraulic fluid port in stupefied left side and the 6th hydraulic fluid port positioned at the stupefied right side of dashing forward；
With left folding while and attachment spacers when right folding, the attachment spacers be socketed in the right end of the main paragraph, the left folding
While left side against the second spring seat and the right folding while left side against the right side of the main paragraph；
First spring, first spring pocket in the undergauge section, the left end of first spring against the right folding side and
The right end of first spring is against first spring base；
Second spring, the second spring cover on first spring, and the left end of the second spring is against the left folding side
And the right end of the second spring is resisted against on first spring base；
End cap, the end cap are located at the left opening that second valve opening is closed on second valve casing；
Handleset, the Handleset include:
Fixed ring, the fixed ring are socketed on the end cap；
First connecting rod, the right end of the first connecting rod be pivotly connected with the fixed ring and the left end of the first connecting rod to
Left extension and the left side for protruding from the end cap；
Handle, the middle part of the handle are pivotly connected with the left end of the first connecting rod；
Second connecting rod, the left end of the second connecting rod are pivotly connected with the lower end of the handle, the right side of the second connecting rod
End passes through to the right the end cap and is connected with the left end of the piston；
Wherein, the spool moves between first position, the second position and the third place.
2. a kind of hydraulic control-hand-operated double controlled reversal valve according to claim 1, which is characterized in that when the spool is in institute
When stating first position, the 5th hydraulic fluid port, the 6th hydraulic fluid port and the Handleset are not acted on the piston application
Power, the spool keep first hydraulic fluid port, second hydraulic fluid port, the third hydraulic fluid port and the 4th hydraulic fluid port disconnected between any two
It opens.
3. a kind of hydraulic control-hand-operated double controlled reversal valve according to claim 1, which is characterized in that when the spool is in institute
When stating the second position, the 6th hydraulic fluid port, the Handleset not to the piston apply active force, the piston by by
The external force of the 5th hydraulic fluid port injection pushes the first spring and the elastic force of the second spring described in the piston overpowers to move right
It is dynamic, and then the spool is driven to move right, until the spool makes first hydraulic fluid port pass sequentially through the through flow hole and institute
State that blind hole is connected with the 4th hydraulic fluid port, the spool connects second hydraulic fluid port and the third hydraulic fluid port by the through-flow slot
It is logical.
4. a kind of hydraulic control-hand-operated double controlled reversal valve according to claim 1, which is characterized in that when the spool is in institute
When stating the third place, the 5th hydraulic fluid port, the Handleset not to the piston apply active force, the piston by by
The external force of 6th hydraulic fluid port injection pushes the first spring and the elastic force of the second spring described in the piston overpowers to moving to left
It is dynamic, and then the spool is driven to be moved to the left together with first spring base, until the spool make first hydraulic fluid port and
Second hydraulic fluid port makes the third hydraulic fluid port pass through first valve opening and described the by the through-flow slot connection, the spool
The connection of four hydraulic fluid ports.
5. a kind of hydraulic control-hand-operated double controlled reversal valve according to claim 1, which is characterized in that when the spool is in institute
When stating the second position, the 5th hydraulic fluid port, the 6th hydraulic fluid port do not apply active force to the piston, and the piston is by institute
The external force that Handleset applies from left to right is stated to push the bullet of the first spring and the second spring described in the piston overpowers
Power moves right, and then the spool is driven to move right, until the spool makes first hydraulic fluid port pass sequentially through described lead to
Discharge orifice and the blind hole are connected with the 4th hydraulic fluid port, the spool makes second hydraulic fluid port and the third hydraulic fluid port is described in
Through-flow slot connection.
6. a kind of hydraulic control-hand-operated double controlled reversal valve according to claim 1, which is characterized in that when the spool is in institute
When stating the third place, the 5th hydraulic fluid port, the 6th hydraulic fluid port do not apply active force to the piston, and the piston is by institute
State Handleset right-to-left application external force with push the first spring and the elastic force of the second spring described in piston overpowers to
It moves left, and then the spool is driven to be moved to the left together with first spring base, until the spool makes first oil
Mouth and second hydraulic fluid port are connected to by the through-flow slot, the spool makes the third hydraulic fluid port pass through first valve opening and institute
State the connection of the 4th hydraulic fluid port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810612225.0A CN108758003B (en) | 2018-06-14 | 2018-06-14 | A kind of hydraulic control-hand-operated double controlled reversal valve |
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| CN201810612225.0A CN108758003B (en) | 2018-06-14 | 2018-06-14 | A kind of hydraulic control-hand-operated double controlled reversal valve |
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| CN108758003A CN108758003A (en) | 2018-11-06 |
| CN108758003B true CN108758003B (en) | 2019-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022086687A1 (en) * | 2020-10-21 | 2022-04-28 | Caterpillar Inc. | Pilot operated bypass valve with reverse check |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268339B (en) * | 2018-11-26 | 2020-11-03 | 义乌市思淇工业设计有限公司 | Switching valve for small hydraulic press |
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| WO2022086687A1 (en) * | 2020-10-21 | 2022-04-28 | Caterpillar Inc. | Pilot operated bypass valve with reverse check |
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| CN108758003A (en) | 2018-11-06 |
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Effective date of registration: 20191106 Address after: High tech Industrial Park in Jiangsu province 224700 Yancheng City Jianhu Tang Bridge No. 88 Applicant after: JIANGSU SHUANGHUI MACHINERY MANUFACTURING CO., LTD. Address before: 523000 Dongguan City, Guangdong Province, Songshan Lake High-tech Industrial Development Zone Headquarters, No. 2, No. 1 District, No. 2 (Cluster Registration) Applicant before: Dongguan hate Paavo Hydraulic Technology Co., Ltd. |
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