CN207961561U - A kind of throttle type orifice valve - Google Patents
A kind of throttle type orifice valve Download PDFInfo
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- CN207961561U CN207961561U CN201820251643.7U CN201820251643U CN207961561U CN 207961561 U CN207961561 U CN 207961561U CN 201820251643 U CN201820251643 U CN 201820251643U CN 207961561 U CN207961561 U CN 207961561U
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- valve
- valve block
- throttle type
- type orifice
- spool
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Abstract
A kind of throttle type orifice valve, belongs to valve technology field.Throttle type orifice valve, including valve body that liquid flows through（5）, it is characterised in that：In valve body（5）It is internally provided with inner cavity, end cap（8）The one end for being enclosed in inner cavity forms blind end, in end cap（8）On offer flowing hole（7）, in valve body（5）Open end be provided with closeouts, in spool（6）Outer wall on be provided with throttling channel（2）, throttling channel（2）The circulation passage of liquid is cooperatively formed with closeouts, the circulation area of circulation passage is sequentially reduced along closeouts by the direction of hydraulic moving, is additionally provided with the elastic component that driving closeouts reset after by hydraulic moving in the lumen.In this throttle type orifice valve, the circulation passage of liquid is cooperatively formed by throttling channel and closeouts, closeouts are adjusted valve opening size to realize according to the size of the big minor adjustment circulation passage of hydraulic pressure.
Description
Technical field
A kind of throttle type orifice valve, belongs to valve technology field.
Background technology
Orifice valve is to be widely used a kind of general valve at present, and orifice valve is to push spool movement by the pressure of medium
Realize the conducting of valve, so current orifice valve is often that pressure is bigger, the aperture of valve is bigger, and flow is also bigger.So
And need to control flow when pressure is very big in some fields, that is, require to flow after pressure increases to certain value
Amount slowly to increase or flow remains unchanged, and even reduces, and current orifice valve is all unable to control flow.
Invention content
The technical problems to be solved in the utility model is：Overcome the deficiencies of the prior art and provide it is a kind of by throttling channel and
Closeouts cooperatively form the circulation passage of liquid, and closeouts are according to the size of the big minor adjustment circulation passage of hydraulic pressure, to realize
Throttle type orifice valve that valve opening size is adjusted.
Technical solution adopted by the utility model to solve its technical problems is：The throttle type orifice valve, including liquid flow
The valve body of warp, it is characterised in that：The inner cavity axially penetrated through is provided in valve inner, one end of inner cavity is fixed with end cap, another
End is provided with along inner cavity valve block in axial sliding, end cap with the through-hole being connected to inner cavity is both provided on valve block, in the lumen
It axially is provided with spool, throttling channel is offered on the outer wall of spool, throttling channel forms the stream of liquid with end cap or valve block interval
Circulation passage；
Liquid squeeze the action of valve block rear-guard moving valve plate make valve block and throttling channel relatively move or liquid extruding valve block after
Driving valve block band movable valve plug synchronization action makes end cap be relatively moved with throttling channel, and the area of circulation passage is along valve block by hydraulic pressure
Mobile direction and be sequentially reduced, be additionally provided with the elastic component that driving valve block resets after by hydraulic moving in the lumen.
Preferably, described spool one end is fixed at the center of end cap, and the other end sequentially passes through inner cavity and valve block.
Preferably, the elastic component is set in the outer ring of spool, and elastic component is the tower spring of uniform external diameter variation.
Preferably, the elastic component is that coefficient of elasticity is different and multiple springs of head and the tail connection, between adjacent springs by
Partition board is into between-line spacing；Or be multiple springs that coefficient of elasticity is different and height is different, multiple springs are arranged successively.
Preferably, two groups of spring limiting parts are provided on the medial surface of end cap, two groups of spring limiting parts are located at different straight
On two circumference of diameter, tower spring is positioned in the gap of two groups of spring limiting part internal and external partitions formation.
Preferably, the throttling channel includes the flow equalization section and restriction portion axially set gradually from outside to inside along spool,
Stream section and restriction portion ecto-entad are communicated as one, and flow equalization section is the inside and outside groove for waiting depth, and restriction portion is domatic shallow in outer depth
Groove.
Preferably, the flow equalization section is extended inwardly to from the outer end of spool at the inner face of valve block, the restriction portion
Continue to extend to the inside of valve body from the inner face of valve block.
Preferably, the throttling channel is domatic groove shallow in the inside and outside groove for waiting depth or outer depth, and throttling channel is by extroversion
It is inside provided with multistage, each section of conducting quantity is sequentially reduced.
Preferably, the open end of the valve body is provided with baffle, baffle is the multisection type at annular or interval.
Preferably, described spool one end is fixed at the center of valve block, and the other end sequentially passes through inner cavity and end cap.
Compared with prior art, advantageous effect possessed by the utility model is：
1, in this throttle type orifice valve, the circulation passage of liquid, closeouts are cooperatively formed by throttling channel and closeouts
According to the size of the big minor adjustment circulation passage of hydraulic pressure, valve opening size is adjusted to realize.
2, since throttling channel and valve block cooperation are installed, throttle is immediately entered after valve block once motion, therefore
It is more rapid for the reaction of hydraulic pressure.
3, by the way that spool is arranged, in order to which valve block smoothly slides in the lumen.
4, by the way that spring limiting part is arranged, it is ensured that tower spring is not in displacement during compression or release.
5, by the way that tower spring is arranged, it can realize that valve block is resetted after valve block is subjected to displacement by hydraulic pressure.
Although 6, throttling channel being opened on the inner wall of valve body with valve block to coordinate and realizing throttling, by throttling channel
It is opened on spool, the difficulty of mechanical processing substantially reduces, and has saved the manufacturing cost of product to a certain extent.
Description of the drawings
Fig. 1 is 1 structural schematic diagram of throttle type orifice valve embodiment.
Fig. 2 is sectional view along A-A in Fig. 1.
Fig. 3 is throttle type orifice valve left view.
Fig. 4 is 2 structural schematic diagram of throttle type orifice valve embodiment.
Fig. 5 is 3 structural schematic diagram of throttle type orifice valve embodiment.
Fig. 6 is 4 structural schematic diagram of throttle type orifice valve embodiment.
Fig. 7 is 5 structural schematic diagram of throttle type orifice valve embodiment.
Fig. 8 is 6 structural schematic diagram of throttle type orifice valve embodiment.
Wherein：1, baffle 2, throttling channel 3, valve block 4, tower spring 5, valve body 6, spool 7, flowing hole 8, end
Lid 9, spring limiting part 10, the first spring 11, second spring 12, partition board.
Specific implementation mode
Fig. 1 ~ 3 are the most preferred embodiments of the utility model, and 1 ~ 8 pair of the utility model is done furtherly below in conjunction with the accompanying drawings
It is bright.
Embodiment 1：
As shown in Fig. 1 ~ 3, a kind of throttle type orifice valve, including valve body 5, valve body 5 are cylindrical shape, are set in the inside of valve body 5
It is equipped with the inner cavity axially penetrated through, is open end in the wherein one end of valve body 5, is arranged at the port of the other end and is equipped with the formation envelope of end cap 8
Closed end offers several flowing holes 7 in the border of end cap 8.
The spool 6 axially penetrated through is provided in the inner cavity of valve body 5,6 one end of spool is fixed at the center of end cap 8, separately
One end extends at the port of 5 other side of valve body.It is disposed with tower spring 4 and valve block 3 from inside to outside in the lumen, passes through setting
Spool 6, in order to smoothly be slided in 3 inner cavity of valve block.
It is evenly arranged with polylith baffle 1 in the open end of valve body 5, baffle 1 keeps off valve block 3 on the inside of 5 open end of valve body, prevents
Only valve block 3 pops up under the elastic force of tower spring 4 at the port of valve body 5, and baffle 1 will not make 5 open end of hydraulic oil inlet-outlet valve body
At blocking, while will not be to interfering hydraulic oil to impact valve block 3.Baffle 1 equally can be designed as annular shape.
Two groups of spring limiting parts 9 are provided on the inner face of end cap 8, two groups of spring limiting parts 9 are located at different-diameter
On two circumference, tower spring 4 is positioned in the gap of two groups of 9 internal and external partitions of spring limiting part formation, as shown in Figure 2.Pass through setting
Spring limiting part 9, it is ensured that tower spring 4 is not in displacement, any one group of spring limiting part 9 during compression or release
Monoblock type or segmented can be used.
5 open end of valve body is provided with a plurality of throttling channel 2, throttling channel 2 is uniformly opened in spool 6 along the axial direction of spool 6
On outer wall, 2 ecto-entad of throttling channel includes the front and back flow equalization section and restriction portion being connected to, and wherein flow equalization section is the inside and outside ditch for waiting depth
Slot, restriction portion are domatic groove shallow in outer depth, and flow equalization section is from the inner face that the outer end of spool 6 extends inwardly to valve block 3, section
Stream section continues to extend to 5 inner end of valve body from the inner face of valve block 3.Valve block 3 cooperatively forms hydraulic oil inflow or stream with throttling channel 2
Go out the circulation passage of valve body 5.
Since the flow equalization section of throttling channel 2 extends inwardly from the outer end of spool 6, spool 6 outer end flow equalization section with
The interval of valve block 3 forms several normal open holes, due to offering several flowing holes 7 in the border of end cap 8, forms hydraulic pressure oil stream
Logical normal open channel.When the oil pressure of hydraulic oil is smaller, fluid is via the normal open passage flow, when oil pressure is larger, 3 edge of valve block
Spool 6 coordinates with the restriction portion in throttling channel 2, is gradually moved to by the deep trouth area of restriction portion to 5 medial movement of valve body, valve block 3
Its shallow slot area realizes the throttling action to hydraulic oil up to completely closing.
Specific work process and operation principle are as follows：
This throttle type orifice valve is mounted in hydraulic oil pipeline, and the inner sealing of the outer wall of valve body 5 and hydraulic oil pipeline
Setting, due to being provided with flowing hole 7 on end cap 8, flowing hole 7 is cooperatively formed with throttling channel 2 in this throttle type orifice valve
The normal open oil circuit of hydraulic oil.
When the flow velocity of the hydraulic oil of hydraulic oil pipeline mutates, hydraulic oil is applied to the oil pressure on valve block 3 can be unexpected
Become larger, when the pressure of hydraulic oil is enough to overcome the elastic force of limit tower spring 4, valve block 3 can be pressed towards the inside of valve body 5, due to tower
4 even thickness of spring changes, therefore the elastic force of tower spring 4 gradually changes, therefore the contraction state of tower spring 4 can be with hydraulic fluid pressure
Change and gradually taper up, valve block 3 is gradually moved to its shallow slot area by the deep trouth area of throttling channel 2 at this time so that the circulation of hydraulic oil
Area reduces, and slows down the degree of displacement of valve body 5.If hydraulic oil is excessive to the extruding force of valve block 3, valve block 3 can be moved to
At the end of valve body 5, the circulation area of hydraulic oil is minimized, restriction effect is realized, when the pressure of hydraulic oil gradually subtracts
Hour, valve block 3 can gradually reset under the action of tower spring 4.
Embodiment 2：
As shown in figure 4, the present embodiment and embodiment 1 difference lies in：In the present embodiment, it omits tower spring 4 and passes through bullet
The first different spring 10 of property coefficient and second spring 11 are replaced.Partition board 12,10 He of the first spring are set on spool 6
Second spring 11 is located at the both sides of partition board 12 and is sleeved on the outer ring of spool 6 simultaneously.When valve block 3 is pressurized movement, first
The small spring of elasticity of compression coefficient continues the big spring of elasticity of compression coefficient when the pressure of hydraulic oil gradually increases, realizes
The effect that valve block 3 is gradually tapered up by the variation with hydraulic fluid pressure.
The spring that the present embodiment can also use more coefficient of elasticity different when implementing carries out head and the tail connection and installs successively.
Embodiment 3：
As shown in figure 5, the present embodiment and embodiment 1 difference lies in：In the present embodiment, it omits tower spring 4 and passes through bullet
The first different spring 10 of property coefficient and second spring 11 are replaced.11 coefficient of elasticity phase of first spring 10 and second spring
Different, diameter is different and height is different, and the small spring of diameter is mounted on to the inner ring of the big spring of diameter, the first spring 10 and second
Spring 11 is sleeved on the outer ring of spool 6 simultaneously.When valve block 3 is pressurized movement, a wherein spring is compressed first, when hydraulic oil
It is contacted with other spring after valve block 3 continues to move to when pressure gradually increases and continues to compress other spring, realize valve block 3
The effect gradually tapered up by the variation with hydraulic fluid pressure.First spring 10 and second spring 11 can also diameter it is identical, hand over
Fork is arranged.
The present embodiment can also use that more coefficient of elasticity are different, diameter is identical or different and height is different when implementing
Spring is set with.
Embodiment 4：
As shown in fig. 6, the present embodiment and embodiment 1 difference lies in：In the present embodiment, it is located at 5 any one end of valve body
Throttling channel 2 along the multistage that is divided axially into of spool 6, and be sequentially reduced per one end ecto-entad depth and the quantity be connected subtracts successively
It is small, such as：Since at port inwardly, all throttling channels 2 of first segment all turn on, and have all the way in the throttling channel 2 of second segment
Blocked ... and so on.Therefore valve block 3 is in moving process, from the conducting area two of conducting quantity and single throttling channel 2
A aspect realizes throttling simultaneously.
Embodiment 5：
As shown in fig. 7, the present embodiment and embodiment 4 difference lies in：In the present embodiment, throttling channel 2 is inside and outside waits deeply
Open up mode, throttling channel 2 is equally along the multistage that is divided axially into of spool 6, and the quantity of conducting subtracts successively per one end ecto-entad
It is small, therefore valve block 3 only realizes throttling from conducting quantity in moving process to hydraulic oil.
Embodiment 6：
As shown in figure 8, the present embodiment and embodiment 1 difference lies in：In the present embodiment, 6 one end of spool is fixed on valve
At the center of piece 3, the other end is pierced by from the center of end cap 8.The flow equalization section of throttling channel 2 is inwardly opened up from the outer end of spool 6 and is set
At the inner face of end cap 8, restriction portion, which continues to extend from the inner face of end cap 8, to be opened up, therefore the flow equalization section and end cap of throttling channel 2
8 cooperatively form normal open hole, are opened in the throttle orifice 7 at end cap 8 originally and are opened on valve block 3.
When the pressure that valve block 3 receives hydraulic oil is larger, valve block 3 is with 6 synchronizing moving of movable valve plug, and spool 6 is from end cap 8 at this time
Place's output, the throttling channel 2 on spool 6 coordinate with end cap 8, and it is straight that end cap 8 by the deep trouth area of restriction portion is gradually moved to its shallow slot area
To completely closing, the throttling action to hydraulic oil is realized.
Embodiment 7：
The present embodiment and embodiment 1 difference lies in：In the present embodiment, whole open up of throttling channel 2 is shallow in outer depth
Domatic groove.
Embodiment 8：
The present embodiment and embodiment 7 difference lies in：In the present embodiment, equally being divided axially into along spool 6 of throttling channel 2
Multistage, and be sequentially reduced per the quantity of one end ecto-entad conducting.
This throttle type orifice valve can be the arbitrary combination of above example.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is every without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Any simple modification, equivalent variations and remodeling, still fall within the guarantor of technical solutions of the utility model made by confrontation above example
Protect range.
Claims (10)
1. a kind of throttle type orifice valve, including valve body that liquid flows through（5）, it is characterised in that：In valve body（5）It is internally provided with axis
To perforative inner cavity, one end of inner cavity is fixed with end cap（8）, the other end is provided with along inner cavity valve block in axial sliding（3）, holding
Lid（8）With valve block（3）On be both provided with the through-hole being connected to inner cavity, it is axial in the lumen to be provided with spool（6）, in spool（6）
Outer wall on offer throttling channel（2）, throttling channel（2）With end cap（8）Or valve block（3）Interval forms the circulation passage of liquid；
Liquid squeezes valve block（3）Rear-guard moving valve plate（3）Action makes valve block（3）With throttling channel（2）It relatively moves or liquid squeezes
Pressure valve piece（3）Rear-guard moving valve plate（3）Band movable valve plug（6）Synchronization action makes end cap（8）With throttling channel（2）It relatively moves, flows
The area of circulation passage is along valve block（3）It is sequentially reduced by the direction of hydraulic moving, is additionally provided with driving valve block in the lumen（3）By
The elastic component resetted after hydraulic moving.
2. throttle type orifice valve according to claim 1, it is characterised in that：The spool（6）One end is fixed on end cap
（8）Center at, the other end sequentially passes through inner cavity and valve block（3）.
3. throttle type orifice valve according to claim 1, it is characterised in that：The elastic component is set in spool（6）'s
Outer ring, elastic component are the tower spring of uniform external diameter variation（4）.
4. throttle type orifice valve according to claim 1, it is characterised in that：The elastic component be coefficient of elasticity it is different and
Multiple springs of head and the tail connection, by partition board between adjacent springs（12）Into between-line spacing；Or it is different and highly different for coefficient of elasticity
Multiple springs, multiple springs are arranged successively.
5. throttle type orifice valve according to claim 3, it is characterised in that：In end cap（8）Medial surface on be provided with two
Group spring limiting part（9）, two groups of spring limiting parts（9）It is located on two circumference of different-diameter, tower spring（4）It is positioned over two groups of bullets
Spring locating part（9）In the gap that internal and external partition is formed.
6. throttle type orifice valve according to claim 1, it is characterised in that：The throttling channel（2）Including along spool（6）
The axial flow equalization section and restriction portion set gradually from outside to inside, flow equalization section and restriction portion ecto-entad are communicated as one, flow equalization section
For inside and outside equal deep groove, restriction portion is domatic groove shallow in outer depth.
7. throttle type orifice valve according to claim 6, it is characterised in that：The flow equalization section is from spool（6）Outer end
Extend inwardly to valve block（3）Inner face at, the restriction portion is from valve block（3）Inner face at continue to valve body（5）It is interior
Side extends.
8. throttle type orifice valve according to claim 1, it is characterised in that：The throttling channel（2）For inside and outside equal depth
Shallow domatic groove, throttling channel in groove or outer depth（2）Ecto-entad is provided with multistage, and each section of conducting quantity subtracts successively
It is small.
9. throttle type orifice valve according to claim 1, it is characterised in that：In the valve body（5）Open end be provided with
Baffle（1）, baffle（1）For annular or the multisection type at interval.
10. throttle type orifice valve according to claim 1, it is characterised in that：The spool（6）One end is fixed on valve block
（3）Center at, the other end sequentially passes through inner cavity and end cap（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251643.7U CN207961561U (en) | 2018-02-12 | 2018-02-12 | A kind of throttle type orifice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251643.7U CN207961561U (en) | 2018-02-12 | 2018-02-12 | A kind of throttle type orifice valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961561U true CN207961561U (en) | 2018-10-12 |
Family
ID=63739384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820251643.7U Expired - Fee Related CN207961561U (en) | 2018-02-12 | 2018-02-12 | A kind of throttle type orifice valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207961561U (en) |
-
2018
- 2018-02-12 CN CN201820251643.7U patent/CN207961561U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20200212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |