CN207178344U - A kind of sequence valve - Google Patents
A kind of sequence valve Download PDFInfo
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- CN207178344U CN207178344U CN201721082955.1U CN201721082955U CN207178344U CN 207178344 U CN207178344 U CN 207178344U CN 201721082955 U CN201721082955 U CN 201721082955U CN 207178344 U CN207178344 U CN 207178344U
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Abstract
The utility model discloses a kind of sequence valve, belongs to hydraulic machinery field.The sequence valve includes：Valve body with the first cavity in axial direction, the spring for from top to bottom offseting and being arranged in the first cavity successively, break common piston, the first opening plunger, the second opening plunger；First connected with the first cavity hydraulic fluid port, second excessively are respectively arranged with the left and right side wall of valve body and crosses hydraulic fluid port；Spring is in compressive state all the time；Disconnected common piston can be slided along the first cavity inner wall dynamic sealing, and hydraulic fluid port is crossed for blocking and connecting the first hydraulic fluid port and second excessively；The lower end outer wall of first opening plunger is provided with first annular groove, and first annular groove is crossed hydraulic fluid port with first by the first path being arranged on valve body and connected；The lower end outer wall of second opening plunger is provided with the second annular groove, and the second annular groove is crossed hydraulic fluid port with second by the alternate path being arranged on valve body and connected；First opening plunger and the second opening plunger can slide respectively along the first cavity inner wall dynamic sealing.
Description
Technical field
Hydraulic machinery field is the utility model is related to, more particularly to a kind of sequence valve.
Background technology
Sequence valve belongs to one kind of pressure-control valve, and its main function is using pressure as control signal, is necessarily being controlled
The lower turn on automatically of pressure effect or a certain oil circuit of cut-out.With the row such as fast development, petroleum machinery, petroleum equipment of science and technology
Industry carries out highly difficult, high-precision operation using hydraulic control technology.Wherein, hydraulic cylinder is the indispensability for implementing hydraulic control technology
Device.When carrying out an operation using hydraulic control technology, it usually needs more hydraulic cylinders are cooperated, wherein, often
The task that platform hydraulic cylinder is distributed is different, and operation successively in a certain order.At present, generally connect between adjacent hydraulic cylinder
Pipeline is connected with, and sequence valve is provided with pipeline, to control each hydraulic cylinder to carry out sequential analysis.It can be seen that set on pipeline
Sequence valve, it is ensured that multiple hydraulic cylinders carry out sequential analysis, therefore, it is necessary to provide a kind of sequence valve.
Prior art provides a kind of one way sequence valve, and such sequence valve has the characteristics of reverse smooth no pressure difference.Therefore,
When controlling multiple hydraulic cylinders order to lift, it is necessary to set one way sequence valve on pipeline；The characteristics of based on one way sequence valve, when
, it is necessary to reversely seal in same unidirectional sequence on the pipeline for be provided with one way sequence valve when controlling the order reset of these hydraulic cylinders
Valve, to realize that the order of hydraulic cylinder resets.
Designer has found that prior art at least has problems with：
Because one way sequence valve has the characteristics of reverse smooth no pressure difference, when control multiple hydraulic cylinders sequentially lift, reset
When, it is necessary to forward and reverse on pipeline seals in one way sequence valve respectively, this not only adds the risk that pipeline leaks, and
And also increase activity duration and labor intensity.
Utility model content
In order to solve the above problems, the utility model embodiment provides a kind of sequence valve.The technical scheme is as follows：
A kind of sequence valve, the sequence valve include：Valve body with the first cavity in axial direction, from top to bottom successively
Offset and be arranged on the spring in first cavity, break common piston, the first opening plunger, the second opening plunger；
First connected with first cavity is respectively arranged with the left and right side wall of the valve body and crosses hydraulic fluid port, the second mistake
Hydraulic fluid port；
The spring is in compressive state all the time；
The disconnected common piston can slide along the first cavity inner wall dynamic sealing, for blocking and connecting described first
Cross hydraulic fluid port and cross hydraulic fluid port with described second；
The lower end outer wall of first opening plunger is provided with first annular groove, and the first annular groove passes through setting
The first path on the valve body is crossed hydraulic fluid port with described first and connected；
The lower end outer wall of second opening plunger is provided with the second annular groove, and second annular groove passes through setting
Alternate path on the valve body is crossed hydraulic fluid port with described second and connected；
First opening plunger and second opening plunger can be slided respectively along the first cavity inner wall dynamic sealing
It is dynamic.
Specifically, the upper end of the valve body is removably connected with pressure cap；
The lower surface of the pressure cap at the top of the spring with offseting.
Specifically, the sequence valve also includes：The adjusting pressuring handle that lower end is threadedly coupled with the pressure cap；
The lower surface of the adjusting pressuring handle at the top of the spring with offseting.
Specifically, the sequence valve also includes：The sealing piston that can be slided along the first cavity inner wall dynamic sealing；
The upper surface of the sealing piston and the lower surface of the adjusting pressuring handle offset, the lower surface of the sealing piston with
Offseted at the top of the spring.
Specifically, the lower surface of the sealing piston is provided with chuck, and the chuck is embedded in the spring.
Specifically, multiple sealing rings are provided with the outer wall of the sealing piston, for blocking the sealing piston and institute
State the annular space between the first cavity；
Multiple sealing rings are arranged at intervals from top to bottom.
Specifically, the second cavity of opening upwards is provided with the disconnected common piston；
The lower end of the spring is embedded in second cavity.
Specifically, the bottom of the disconnected common piston is provided with multiple spout holes；
The spout hole communicates with second cavity.
Specifically, the bottom of the valve body is provided with plugging hole, and the plugging hole is coaxially disposed with first cavity；
Closeouts, the upper surface of the closeouts and second opening plunger are removably connected with the plugging hole
Lower surface offsets.
Specifically, it is provided with mounting hole in the side wall of the valve body；
Screw thread is provided with the inwall of the mounting hole.
The beneficial effect brought of technical scheme that the utility model embodiment provides is：
The sequence valve that the utility model embodiment provides is first annular recessed by being provided with the lower end of the first opening plunger
Groove, and first annular groove is connected by the first path with the left port of oil circuit through hole；And by the second opening plunger
Lower end is provided with the second annular groove, and the second annular groove is connected by alternate path with the right output port of oil circuit through hole, can be right
The circulation for flowing through the coming oil of oil circuit through hole different port is controlled, and can be realized that multiple hydraulic cylinders are sequentially lifted and resetted, be avoided
Same one way sequence valve is reversely sealed on the pipeline for be provided with one way sequence valve, reduces the wind that pipeline leaks
Danger, and reduce set-up time and labor intensity.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation for the sequence valve that the utility model embodiment provides；
Fig. 2 is the structural representation for the valve body that the utility model embodiment provides；
Fig. 3 is that first that the utility model embodiment provides starts plunger, the partial enlarged drawing of the second startup plunger；
Fig. 4 is the sequence valve provided using the utility model embodiment, and the operation of multiple hydraulic cylinders carry out order lifting is shown
It is intended to；
Fig. 5 is the sequence valve provided using the utility model embodiment, and the operation of multiple hydraulic cylinders carry out order reset is shown
It is intended to.
Each label of accompanying drawing is illustrated below：
1- valve bodies；
The cavitys of 101- first；
102- first crosses hydraulic fluid port；
103- second crosses hydraulic fluid port；
The paths of 104- first；
105- alternate paths；
106- plugging holes；
107- mounting holes；
2- springs；
3- breaks common piston；
301- spout holes；
The opening plungers of 4- first；
The first annular grooves of 401-；
The opening plungers of 5- second；
The annular grooves of 501- second；
6- pressure caps；
7- adjusting pressuring handles；
8- sealing pistons；
9- sealing rings；
10- closeouts；
11- first hydraulic cylinders；
12- second hydraulic cylinders；
The pipelines of a- first；
The pipelines of b- second；
The pipelines of c- the 3rd；
The pipelines of d- the 4th；
The pipelines of e- the 5th.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment provides a kind of sequence valve, as shown in figure 1, the sequence valve includes：With side vertically
To the first cavity 101 valve body 1, from top to bottom offset and be arranged in the first cavity 101 successively spring 2, open close use post
Fill in the 3, first opening plunger 4, the second opening plunger 5.Further, referring to Fig. 2, it is respectively arranged with the left and right side wall of valve body 1
First connected with the first cavity 101 crosses hydraulic fluid port 102, second and crosses hydraulic fluid port 103；Spring 2 is in compressive state all the time；It is open close to use post
Plug 3 can be slided along the inwall dynamic sealing of the first cavity 101, and hydraulic fluid port is crossed for blocking and connecting the first hydraulic fluid port 102 and second excessively
103；Referring to Fig. 1, Fig. 3, the lower end outer wall of the first opening plunger 4 is provided with first annular groove 401, first annular groove 401
Hydraulic fluid port 102 is crossed by the first path 104 being arranged on valve body 1 with first to connect；Referring to Fig. 1, Fig. 3, the second opening plunger 5
Lower end outer wall is provided with the second annular groove 501, and the second annular groove 501 is by being arranged on the alternate path 105 and of valve body 1
Two, which cross hydraulic fluid port 103, connects；First opening plunger 4 and the second opening plunger 5 can be slided respectively along the inwall dynamic sealing of the first cavity 101
It is dynamic.
It should be noted that for the ease of statement, the side wall of valve body 1 is divided into left side wall, the right side by the utility model embodiment
Side wall.
The operation principle of the sequence valve provided below with regard to the utility model embodiment, which is given, to be described：
When the coming oil of certain pressure crosses hydraulic fluid port 102 by first to be entered in the first cavity 101 of valve body 1, the coming oil
It can be entered by the first path 104 in the first annular groove 401 of the lower end of the first opening plunger 4, and to the first opening plunger 4
Application upwards pressure.If the pressure of coming oil is more than the downward elastic force of spring 2, coming oil can promote the first opening plunger 4, make first
Inwall upward sliding of the opening plunger 4 along the first cavity 101, and then disconnected common piston 3 is driven along in the first cavity 101
Wall upward sliding, the first hydraulic fluid port 102 excessively is set to be connected with the second hydraulic fluid port 103 excessively；Afterwards, coming oil is just by first left side for crossing hydraulic fluid port 102
Port is flowed into second and crosses hydraulic fluid port 103, and then is flowed out out of valve body 1.
Similarly, when the coming oil of certain pressure crosses hydraulic fluid port 103 by second to be entered in the first cavity 101 of valve body 1,
The coming oil can be entered in the second annular groove 501 of the lower end of the second opening plunger 5 by alternate path 105, and is opened to second
The application of plunger 5 is opened to upward pressure.If the pressure of coming oil is more than the downward elastic force of spring 2, coming oil can promote the second opening plunger 5
Along the inwall upward sliding of the first cavity 101, and then the first opening plunger 4, the disconnected upward sliding of common piston 3 are driven, first
Hydraulic fluid port 102 is crossed to connect with the second hydraulic fluid port 103 excessively；Afterwards, coming oil is just flowed into the first mistake hydraulic fluid port 102 by the second hydraulic fluid port 103 excessively, enters
And flowed out out of valve body 1.
Based on the operation principle of said sequence valve, below by taking two hydraulic cylinders as an example, just to how to realize the two hydraulic pressure
Cylinder sequentially lifts to be illustrated with the course of work resetted：
The left and right ends mouth of the oil circuit through hole 102 of valve body 1 connects with pipeline respectively.
As Figure 1 and Figure 4, when sequentially being lifted to two hydraulic cylinders, first coming oil with certain pressure passes through
First pipeline a is entered in first hydraulic cylinder 11, and promotes the piston upwards of first hydraulic cylinder 11.Meanwhile first coming oil
Also can be by the second line b, and the first oil-through hole 102 of the sequence valve provided by the utility model embodiment enters first
In cavity 101；Now, the first coming oil possessed pressure is less than the elastic force of spring 2, and disconnected common piston 3 still blocks oil first
Cross hydraulic fluid port 102 and second and cross hydraulic fluid port 103, prevent the first coming oil from being entered by sequence valve in the 3rd line c.
When the first coming oil shifts the piston of first hydraulic cylinder 11 top of first hydraulic cylinder 11 onto, piston is not just being transported
It is dynamic；Afterwards, flow through the first pipeline a, the first coming oil in the second line b is compressed, and then improve the first pipeline a, the second line b
The pressure of the first interior coming oil；When the pressure of the first coming oil in the second line b is more than the elastic force of spring 2, first opens post
Plug 4 upwards motion, make first cross hydraulic fluid port 102 with second hydraulic fluid port 103 connect；Afterwards, the first coming oil will pass through sequence valve, pass through
3rd pipeline c is entered in second hydraulic cylinder 12, pushes away its piston upwards, and then realizes the hydraulic pressure of first hydraulic cylinder 11 and second
Cylinder 12 sequentially lifts.It is last round of to be used for the first hydraulic pressure in the piston upwards of first hydraulic cylinder 11 and second hydraulic cylinder 12
The second coming oil that cylinder 11, second hydraulic cylinder 12 reset is flowed out by the 5th pipeline e, the 4th pipeline d respectively.
It should be noted that the arrow in Fig. 4 represents the first coming oil, the flow direction of the second coming oil.
As shown in Figure 1, shown in Figure 5, when sequentially being resetted to the two hydraulic cylinders, the second of certain pressure carrys out oil
Do not entered by the 5th pipeline e in first hydraulic cylinder 11, and promote the piston of first hydraulic cylinder 11 to move downward；And positioned at the
Last round of first coming oil below the piston of one hydraulic cylinder 11 can be discharged by the first pipeline a so that first hydraulic cylinder 11 can be entered
Row resets.Meanwhile second coming oil can also be entered by the 4th pipeline d in second hydraulic cylinder 12, due to break the envelope of common piston 3
Stifled first, which crosses hydraulic fluid port 102 and second, crosses hydraulic fluid port 103 so that upper below the piston of second hydraulic cylinder 12 and in the 3rd pipeline c
One the first coming oil of wheel can not be discharged, and now, the second coming oil possessed pressure can not make the piston of second hydraulic cylinder 12 downward
Motion.
When the second coming oil shifts the piston of first hydraulic cylinder 11 bottom of first hydraulic cylinder 11 onto, piston is not just being transported
It is dynamic；Afterwards, the second coming oil flowed through in the 5th pipeline e, the 4th pipeline d is compressed, and makes in the 5th pipeline e, the 4th pipeline d
The pressure of two coming oils gradually steps up until the second coming oil can promote the piston of second hydraulic cylinder 12 to move down.Afterwards, second
During the piston of hydraulic cylinder 12 moves down, the first coming oil below the piston of second hydraulic cylinder 12 and in the 3rd pipeline c
Compressed, gradually step up the pressure of its own, until the pressure of the first coming oil is more than the elastic force of spring 2, now, second opens
Plunger 5 moves upwards, the first hydraulic fluid port 102 excessively is connected with the second hydraulic fluid port 103 excessively；Afterwards, first coming oil will pass through sequence valve,
Flowed out from second pipe b, and then realize first hydraulic cylinder 13, the reset of the order of second hydraulic cylinder 14.
It should be noted that the arrow in Fig. 5 represents the first coming oil, the flow direction of the second coming oil.
It can be seen that the sequence valve that the utility model embodiment provides in the lower end of the first opening plunger 4 by being provided with first
Annular groove 401, and first annular groove 401 is connected by the first path 104 with the left port of oil circuit through hole 102；It is and logical
Cross and the second annular groove 501 is provided with the lower end of the second opening plunger 5, and the second annular groove 501 passes through alternate path 105
Connect, the circulation for the coming oil for flowing through the different port of oil circuit through hole 102 can be controlled, energy with the right output port of oil circuit through hole 102
Realize that multiple hydraulic cylinders are sequentially lifted and resetted, avoid and same list is reversely sealed on the pipeline for be provided with one way sequence valve
To sequence valve, the risk that pipeline leaks is reduced, and reduce set-up time and labor intensity.
If spring 2 is in compressive state, it is necessary to be carried out respectively to its top spacing.When the top to spring 2 limits
, it is necessary to set locating part on the first cavity 101 during position, the top for the spring 2 that offsets.Wherein, the knot for limit spring 2
Structure have it is a variety of, for example, as shown in figure 1, the utility model embodiment is removably connected with pressure cap 6 in the upper end of valve body 1；Pressure cap 6
Lower surface and the top of spring 2 offset.If so setting, spring 2 can not only be carried out spacing, prevent it from the first cavity
Come off in 101；And also allow for that spring 2 is installed and dismantled, be advantageous to change spring 2.
Of course, also directly can be provided with annular boss on the inwall of the first cavity 101, the lower surface of the annular boss
Offseted with the top of spring 2.Can as the case may be, come the structure for selecting the upper end by spring 2 and valve body 1 to be offseted.
For the ease of installing and dismantling pressure cap 6, pressure cap 6 can be connected with the threaded upper ends of valve body 1.It can be specifically configured to：
The inwall of pressure cap 6 is provided with screw thread, and the outer wall of the upper end of valve body 1 is provided with the screw thread being adapted with the screw thread on pressure cap 6.
Due to the driving pressure corresponding to different types of hydraulic pump, (pressure energy promotes the piston of hydraulic pump to transport up and down
It is dynamic) it is different, therefore in order to different types of compression pump carry out order lifting, reset, tackle elastic force (the i.e. sequence valve of spring 2
Preset pressure) be adjusted, improve the utilization rate of sequence valve.Therefore as shown in figure 1, the utility model embodiment provide it is suitable
Sequence valve also includes：The adjusting pressuring handle 7 that lower end is threadedly coupled with pressure cap 6；The lower surface of adjusting pressuring handle 7 and the top of spring 2 offset.
Based on above-mentioned setting, the depth that can be inserted by adjusting adjusting pressuring handle 7 in the first cavity 101, to control the compression journey of spring 2
Degree, and then to adjust the elastic force of spring 2.
It is understood that when adjusting the preset pressure of sequence valve, it is necessary to spacing to the bottom of spring 2.Due to spring 2
Lower surface and the upper end of disconnected common piston 3 offset, now, disconnected common piston 3 need to only be carried out it is spacing, can be in the first cavity
Restraining position ring block is set in 101, and the lower surface sealing of the spacing ring and disconnected common piston 3 offsets, and so can also avoid coming oil from passing through
Disconnected gap between common piston 3 and spacing ring, another port is flowed into from a port of oil circuit through hole 102.
Wherein, set in the first cavity 101 restraining position ring block form have it is a variety of, can be empty by first for example, with reference to Fig. 2
The upper end diameter of chamber 101 is more than the lower end diameter of the first cavity 101, and the external diameter of disconnected common piston 3 is equal to the first cavity 101
The external diameter of upper end diameter, the first opening plunger 4 and the second opening plunger 5 is equal to the lower end diameter of the first cavity 101.
When dynamic sealing is slided above and below disconnected inwall of the common piston 3 along the upper end of the first cavity 101, due between both
In the presence of friction, it may appear that disconnected common piston 3 can not offset with the inner wall sealing of the upper end of the first cavity 101 so that coming oil passes through logical
Gap between the inwall of the upper end of 3 and first cavity of plunger 101 and enter the top of disconnected common piston 3, so as to cause to come
Oil flows out in the gap between pressure cap 6 and adjusting pressuring handle 7.This kind of situation not only causes the waste of coming oil, and is also required to
Sequence valve is cleared up, adds activity duration and labor intensity.
In order to solve the above problems, as shown in figure 1, the sequence valve that the utility model embodiment provides also includes：Can be along
The sealing piston 8 that the inwall dynamic sealing of one cavity 101 is slided；The upper surface of sealing piston 8 and the lower surface of adjusting pressuring handle 7 offset,
The lower surface of sealing piston 8 and the top of spring 2 offset.By setting sealing piston 8 in the first cavity 101, can avoid coming
Oil flows out in the gap between pressure cap 6 and adjusting pressuring handle 7.
When adjusting the preset pressure of sequence valve, if the run-off the straight in compression process of spring 2, it is unfavorable for subsequently to order
The adjustment of valve preset pressure, and when the pressure of coming oil is more than the elastic force of spring 2, can not be effectively by the disconnected edge of common piston 3
The inwall upward sliding of the upper end of the first cavity 101.In order to prevent the run-off the straight in compression process of spring 2, as shown in figure 1,
The utility model embodiment is provided with chuck in the lower surface of sealing piston 8, and chuck is embedded in spring 2.
It is understood that internal diameter of the external diameter of chuck equal to or less than spring 2, such as smaller 1mm than the internal diameter of spring 2~
2mm。
Wherein, chuck and the connected mode of the lower surface of sealing piston 8 have a variety of, and the utility model embodiment is in order to protecting
The bonding strength of both is demonstrate,proved, can be by chuck and the integrated molding of sealing piston 8.
Further, in order to increase the sealing effectiveness of the inwall of the upper end of 8 and first cavity of sealing piston 101, such as Fig. 1 institutes
Show, the utility model embodiment is provided with multiple sealing rings 9 on the outer wall of sealing piston 8, for blocking sealing piston 8 and
Annular space between one cavity 101；Multiple sealing rings 9 are arranged at intervals from top to bottom.
Wherein, sealing ring 9 is arranged on the mode in sealing piston 8, can be specifically configured to, in the outer wall of sealing piston 8
It is upper that multiple annular grooves are set, and sealing ring 9 is provided with each annular groove, sealing ring 9 is pasted onto in annular groove.
It is understood that the external diameter of sealing ring 9 should be slightly bigger than the diameter of the first cavity 101, such as 0.5mm~1mm.This
If sample is set, the fully deformed of sealing ring 9 may be such that, increase and the inwall contact area on the top of the first cavity 101 and contact
Dynamics.
, it is necessary to which sequence valve is fixedly mounted in associated supports before using sequence valve.For the ease of sequence valve is consolidated
It is fixed rack-mount, the weight of sequence valve can be reduced, for example, the utility model embodiment is provided with disconnected common piston 3
Second cavity of opening upwards；The lower end of spring 2 is embedded in the second cavity.If so setting, order can not only be reduced
The weight of valve, and can further prevent the run-off the straight in compression process of spring 2.
When dynamic sealing is slided above and below disconnected inwall of the common piston 3 along the upper end of the first cavity 101, due between both
In the presence of friction, it may appear that disconnected common piston 3 can not offset with the inner wall sealing of the upper end of the first cavity 101 so that coming oil passes through logical
Gap between the inwall of the upper end of 3 and first cavity of plunger 101 and enter the top of disconnected common piston 3.If it is flowed into open close
, can not be by open close use even if the pressure of coming oil is more than the elastic force of spring 2 when overstocking a certain amount of with the coming oil of the top of plunger 3
Plunger 3 pushes up line slip so that sequence valve cisco unity malfunction, also cannot be to multiple hydraulic cylinders carry out order lifting, multiple
Position.
In view of the above-mentioned problems, need to discharge the coming oil for being flowed into the disconnected top of common piston 3 from valve body 1, therefore, such as Fig. 1
Shown, the utility model embodiment is provided with multiple spout holes 301 in the bottom of disconnected common piston 3；Spout hole 301 and second is empty
Chamber communicates.
On the specific set location of spout hole 301, the utility model embodiment is not limited, as long as ensureing that first opens
The upper surface for opening plunger 4 does not block spout hole 301.
When a small amount of coming oil is flowed into disconnected 3 top of common piston, if come oil pressure be more than spring 2 elastic force when, can make to break
Common piston 3 pushes up line slip so that the first hydraulic fluid port 102 excessively communicates with the second hydraulic fluid port 103 excessively；Now, spout hole 301 exposes
In oil circuit through hole 102, the oil for the top of common piston 3 of breaking can flow out from by spout hole 301 out of valve body 1.It can be seen that pass through
It is above-mentioned that multiple spout holes 301 are set on disconnected common piston 3, it is ensured that the normal work of sequence valve.
Start plunger 5 for the ease of installing and dismantling the first startup plunger 4, second, as shown in Fig. 2 the utility model is real
Apply example and plugging hole 106 is provided with the bottom of valve body 1, plugging hole 106 is coaxially disposed with the first cavity 101；Referring to Fig. 2, closure
Closeouts 10 are removably connected with hole 106, the upper surface of closeouts 10 and the lower surface of the second opening plunger 5 offset.
It should be noted that the aperture of plugging hole 106, which is equal to or more than first, starts the outer of the startup plunger 5 of plunger 4, second
Footpath, plugging hole 106 can be passed through to ensure that the first startup plunger 4, second starts plunger 5.
Wherein, closeouts 10 can be arranged to bolt structure, be easily installed and dismantle.
For the ease of the installation of sequence valve, as shown in Figure 1 and Figure 2, the utility model is implemented to be provided with installation on valve body 1
Hole 107, for erection sequence valve；Screw thread is provided with the inwall of mounting hole 107.If so setting, sequence valve can also be entered
Row is changed.
Above-mentioned all optional technical schemes, any combination can be used to form the alternative embodiment of the disclosure, herein no longer
Repeat one by one.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (10)
1. a kind of sequence valve, it is characterised in that the sequence valve includes：Valve with the first cavity (101) in axial direction
Body (1), the spring (2) for from top to bottom offseting and being arranged in first cavity (101) successively, break common piston (3), first
Opening plunger (4), the second opening plunger (5)；
First connected with first cavity (101) is respectively arranged with the left and right side wall of the valve body (1) and crosses hydraulic fluid port
(102), second hydraulic fluid port (103) is crossed；
The spring (2) is in compressive state all the time；
The disconnected common piston (3) can be slided along the first cavity (101) inwall dynamic sealing, for block with connect it is described
First crosses hydraulic fluid port (102) crosses hydraulic fluid port (103) with described second；
The lower end outer wall of first opening plunger (4) is provided with first annular groove (401), the first annular groove
(401) hydraulic fluid port (102) is crossed with described first by the first path (104) being arranged on the valve body (1) to connect；
The lower end outer wall of second opening plunger (5) is provided with the second annular groove (501), second annular groove
(501) hydraulic fluid port (103) is crossed with described second by the alternate path (105) being arranged on the valve body (1) to connect；
First opening plunger (4) and second opening plunger (5) can move respectively along the first cavity (101) inwall
Sealing is slided.
2. sequence valve according to claim 1, it is characterised in that the upper end of the valve body (1) is removably connected with pressure cap
(6)；
The lower surface of the pressure cap (6) at the top of the spring (2) with offseting.
3. sequence valve according to claim 2, it is characterised in that the sequence valve also includes：Lower end and the pressure cap (6)
The adjusting pressuring handle (7) of threaded connection；
The lower surface of the adjusting pressuring handle (7) at the top of the spring (2) with offseting.
4. sequence valve according to claim 3, it is characterised in that the sequence valve also includes：Can be along first cavity
(101) sealing piston (8) that inwall dynamic sealing is slided；
The upper surface and the lower surface of the adjusting pressuring handle (7) of the sealing piston (8) offset, under the sealing piston (8)
End face at the top of the spring (2) with offseting.
5. sequence valve according to claim 4, it is characterised in that the lower surface of the sealing piston (8) is provided with chuck,
The chuck is embedded in the spring (2).
6. sequence valve according to claim 4, it is characterised in that be provided with the outer wall of the sealing piston (8) multiple
Sealing ring (9), for blocking the annular space between the sealing piston (8) and first cavity (101)；
Multiple sealing rings (9) are arranged at intervals from top to bottom.
7. sequence valve according to claim 1, it is characterised in that be provided with opening upwards in the disconnected common piston (3)
The second cavity；
The lower end of the spring (2) is embedded in second cavity.
8. sequence valve according to claim 7, it is characterised in that the bottom of the disconnected common piston (3) is provided with multiple
Spout hole (301)；
The spout hole (301) communicates with second cavity.
9. sequence valve according to claim 1, it is characterised in that the bottom of the valve body (1) is provided with plugging hole
(106), the plugging hole (106) is coaxially disposed with first cavity (101)；
Closeouts (10), the upper surface and described second of the closeouts (10) are removably connected with the plugging hole (106)
The lower surface of opening plunger (5) offsets.
10. sequence valve according to claim 1, it is characterised in that be provided with mounting hole in the side wall of the valve body (1)
(107)；
Screw thread is provided with the inwall of the mounting hole (107).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082955.1U CN207178344U (en) | 2017-08-28 | 2017-08-28 | A kind of sequence valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082955.1U CN207178344U (en) | 2017-08-28 | 2017-08-28 | A kind of sequence valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207178344U true CN207178344U (en) | 2018-04-03 |
Family
ID=61739295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721082955.1U Active CN207178344U (en) | 2017-08-28 | 2017-08-28 | A kind of sequence valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424596A (en) * | 2017-08-28 | 2019-03-05 | 中国石油天然气股份有限公司 | A kind of sequence valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424596A (en) * | 2017-08-28 | 2019-03-05 | 中国石油天然气股份有限公司 | A kind of sequence valve |
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