CN106763950B - A kind of pressure controls self-draining valve - Google Patents
A kind of pressure controls self-draining valve Download PDFInfo
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- CN106763950B CN106763950B CN201710132387.XA CN201710132387A CN106763950B CN 106763950 B CN106763950 B CN 106763950B CN 201710132387 A CN201710132387 A CN 201710132387A CN 106763950 B CN106763950 B CN 106763950B
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- spool
- valve
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- cylinder
- spring
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/046—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Lift Valve (AREA)
Abstract
A kind of pressure controls self-draining valve, including valve body, spool, spring, the top of the valve body is equipped with valve body inlet, valve body inlet is connected with the lower part of pressure vessel, and the lower part of valve body is equipped with valve outlet, for discharge impurities, valve body inlet communicates up and down with valve outlet, the spool is arranged on valve inner, and the lower part of spool is connected with one end of spring, and the other end of spring is connected with valve body lower portion.Beneficial effects of the present invention are：It is simple in structure, it is easy for installation；It avoids manual emission time-consuming and laborious, also avoids discharge caused harmful effect not in time；When there is control pressure to act on self-draining valve, pressure pushes valve core movement, closes discharge valve port, and when not having control pressure, self-draining valve counter motion under the action of the spring opens discharge valve port, can timely and effectively discharge impurity.
Description
Technical field
The present invention relates to a kind of valve, particularly a kind of pressure control self-draining valve.
Background technology
There is oil water separator in the air pipe line of diesel locomotive, for detaching the greasy dirt and moisture in compressed air, from oil
The greasy dirt and moisture isolated in separator accumulate mostly, then need to discharge in time；If manually discharging, membership dues labour cost essence
Power；If not discharging, air purification effect can be caused bad, greasy dirt and moisture are mingled in pure compressed air, and influenced whole
A pneumatic system working performance directly results in winter air brake piping and always freezes, increases burden to protection against cold and freezing conditions.
The oil water separator of diesel locomotive air pipe line is the auxiliary equipment of air dryer, the use of purpose is to isolate
The gaseous state lubricating oil and vapor that air is mingled with during being compressed, so as to purify air.When compressed air enters grease point
After device housing, air-flow generates annular revolution, and change dramatically occurs for flow direction and speed, so that the gas being mingled in compressed air
State lubricating oil and vapor hit and wash under centrifugal force and inertia force effect, by centrifuging, and density ratio compressed air is big
Gaseous state lubricating oil and vapor be separated into liquid, and be deposited in housing bottom.Usage time is grown, and is had much from gas
In the water isolated, be mingled with greasy dirt in water, as long as the at this moment water discharging valve of this oil water separator of manual drain.
Existing main problem：
1. under current service condition, by manually periodically discharging when sewage is more, otherwise ponding is more can cause to do
Dry device operational effect is bad.
2. if in winter, excessive ponding can also cause the air pipe line to freeze.
3. if want to realize artificial regular draining, ensure normal effective use of oil water separator, operation will certainly be increased
The labor intensity of worker.
4. because the bottom between the locomotive air pump that the oil water separator is located outside, meanwhile, it is past within the locomotive shunting time
Toward the condition for not having the timely manual blowdown of energy.
5. winter temperature low heat emission is fast, causes to remain in the sewage in oil water separator and freeze, it is impossible to normal blowdown.
Existing major limitation condition：
1. it is unable to large-scale redevelopment original system.
2. excessive cost cannot be put into.
3. in the case of safety operation, it is impossible to bring danger to operator.
Invention content
To solve the above-mentioned problems, the present invention installs pressure control additional by the way that the sewage draining valve of oil water separator lower part is removed
The self-draining valve of system using the compressed air in oil water separator, can discharge the impurity in oil water separator, effectively at any time
Ground prevents freezing for oil water separator, provides a kind of pressure control self-draining valve.
The present invention is achieved by the following technical solutions：
A kind of pressure controls self-draining valve, and including valve body, spool, spring, the top of the valve body enters equipped with valve body
Mouthful, valve body inlet is connected with the lower part of oil water separator, and the lower part of valve body is equipped with valve outlet, and for discharge impurities, valve body enters
Mouth communicates up and down with valve outlet, and the spool is arranged on valve inner, and the lower part of spool is connected with one end of spring, spring
The other end be connected with valve body lower portion.
Wherein, the valve body, which is equipped with, includes the first cylinder and the second cylinder, the first cylinder and the second cylinder
Stepped hollow-core construction, spool are contacted with valve body inlet for line.
Wherein, the spool is sphere, and the diameter of spool is more than the diameter of valve body inlet and the second cylinder, spool
Diameter is less than the diameter of the first cylinder.
Wherein, the top of the spool is cone or frustum cone structure, and the lower part of spool is cylindrical structure, in spool
The top in portion is equipped with cross-hole in the horizontal direction, and the point of intersection of cross-hole is equipped with osculum straight down, valve core inside
Lower part be equipped with groove, the top of groove is connected with osculum, and the cone on spool top or the maximum gauge of frustum cone structure are big
In the diameter of valve body inlet, the diameter of the cylinder of spool lower part is less than the diameter of the first cylinder, the cylinder of spool lower part
With the second cylinder clearance fit, the cylinder diameter of spool lower part is more than the diameter of valve outlet.
Wherein, the valve inner is equipped with the first cylinder and the second cylinder, the first cylinder and the second cylinder
Stepped hollow-core construction, spool are contacted with valve body inlet for face.
Wherein, the spool is sphere, and the lower end of valve body inlet is the corresponding curved-surface structure of spherical surface with sphere, is protected
It is that face contacts that sphere, which is demonstrate,proved, with valve body inlet, and spool is contacted with the top of the second cylinder for line, and the diameter of spool enters more than valve body
The diameter of mouth and the second cylinder, the diameter of spool are less than the diameter of the first cylinder.
Wherein, the top of the spool is cone or frustum cone structure, and the lower part of spool is cylindrical structure, in spool
The top in portion is equipped with cross-hole in the horizontal direction, and the point of intersection of cross-hole is equipped with osculum straight down, valve core inside
Lower part be equipped with groove, the top of groove is connected with osculum, and the lower end of valve body inlet is cone or circle with spool top
The corresponding curved-surface structure of the conical surface of platform structure, the cone on spool top or the maximum gauge of frustum cone structure are more than valve body inlet
Diameter, the diameter of the cylinder of spool lower part is less than the diameter of the first cylinder, the cylinder of spool lower part and the second cylinder
Body space coordinates, and the cylinder diameter of spool lower part is more than the diameter of valve outlet.
Wherein, the spool is cylindrical structure, and spool is internally provided with through-hole, and the both sides of spool are equipped with circumferential groove, valve
The centre in internal portion is equipped with the first cylinder, and the upper and lower of the first cylinder is respectively equipped with the second cylinder, and spool is justified with second
Cylinder clearance fit, the diameter of spool are less than the diameter of the first cylinder, and the diameter of spool is more than valve body inlet and valve outlet
Diameter.
Wherein, the valve inner be equipped with hollow-core construction the first prism, the second prism, the first prism it is upper
Under be respectively equipped with the second prism, spool is contacted with second prism on valve body inlet or valve outlet top for face.
Wherein, the spool is prism structure, and spool is internally provided with through-hole, and the both sides of spool are equipped with circumferential groove, valve
Second prism clearance fit of core and valve body, the bottom surface length of side of spool are less than the corresponding bottom surface side of the first prism of valve body
It is long.
Compared with prior art, beneficial effects of the present invention are：
A kind of pressure control self-draining valve provided by the invention, it is simple in structure, it is easy for installation；Avoid manual emission time-consuming
Arduously, discharge caused harmful effect not in time is also avoided；When having compressed air in the air pipe line of diesel locomotive, automatically
The inner cavity of drain valve is filled with compressed air, and the pressure of air pushes spool to move down, and closes discharge valve port, when not having in air pipe line
During compressed air, the inner cavity of self-draining valve does not push the downward air pressure of spool, and spool is under the action of the spring to moving up
It is dynamic, it is opened during moving up and discharges valve port, the impurity such as greasy dirt and water dirt in discharge oil water separator can not have in system
Air does not have timely and effectively to discharge the impurity in oil water separator during pressure in compressed air or system, is effectively prevented grease
Separator freezes；Winter is also conceivable to by automatic drain valve external power supply, to prevent the valve port of drain valve from freezing.This is arranged automatically
Putting valve can also be applied to be connected with the bottom of the device of compressed air inside other, for impurity such as oil, the water in tapping equipment.
Description of the drawings
Fig. 1 is that a kind of pressure of the present invention controls the spherical valve core during contact of self-draining valve line to be located at uppermost position in fig-ure in valve body
When structure chart.
Spherical valve core when Fig. 2 is a kind of pressure control self-draining valve line contact of the invention is located at lowermost position in valve body and puts
When structure chart.
Fig. 3 is that a kind of pressure of the present invention controls the spherical valve core during contact of self-draining valve line to be located at centre position in valve body
When structure chart.
Fig. 4 is that a kind of pressure of the present invention controls the taper valve core during contact of self-draining valve line to be located at uppermost position in fig-ure in valve body
When structure chart.
Taper valve core when Fig. 5 is a kind of pressure control self-draining valve line contact of the invention is located at lowermost position in valve body and puts
When structure chart.
Fig. 6 is that a kind of pressure of the present invention controls the taper valve core during contact of self-draining valve line to be located at centre position in valve body
When structure chart.
Fig. 7 is the taper valve core and the office of valve body inlet cooperation when a kind of pressure control self-draining valve line of the present invention contacts
Portion's enlarged drawing.
Fig. 8 is the A-A sectional views for the taper valve core that a kind of pressure of the present invention controls self-draining valve.
Fig. 9 is that a kind of pressure of the present invention controls the spherical valve core during contact of automatic-discharging valve face to be located at uppermost position in fig-ure in valve body
When structure chart.
Figure 10 is the spherical valve core and valve body inlet cooperation when a kind of pressure control automatic-discharging valve face of the present invention contacts
Partial enlarged view.
Figure 11 is that a kind of pressure of the present invention controls the taper valve core during contact of automatic-discharging valve face to be located at upper in valve body
Structure chart when putting.
Figure 12 is the taper valve core and valve body inlet cooperation when a kind of pressure control automatic-discharging valve face of the present invention contacts
Partial enlarged view.
Figure 13 is that a kind of pressure of the present invention controls the cylindrical spool during contact of automatic-discharging valve face to be located at upper in valve body
Structure chart when putting.
Figure 14 is that a kind of pressure of the present invention controls the cylindrical spool during contact of automatic-discharging valve face to be located at lowermost position in valve body
Structure chart when putting.
Figure 15 is that a kind of pressure of the present invention controls the cylindrical spool during contact of automatic-discharging valve face to be located at interposition in valve body
Structure chart when putting.
Figure 16 is the B-B sectional views of cylindrical spool when a kind of pressure control automatic-discharging valve face of the present invention contacts.
Quadrangular spool when Figure 17 is a kind of pressure control automatic-discharging valve face contact of the invention is located at most upper in valve body
Structure chart during position.
Figure 18 is the C-C sectional views of quadrangular spool when a kind of pressure control automatic-discharging valve face of the present invention contacts.
In figure：1st, valve body, 2, spool, 3, spring, 4, valve body inlet, 5, valve outlet, 6, container outlet, the 7, first cylinder
Body, the 8, second cylinder, 9, cross-hole, 10, osculum, 11, groove, 12, through-hole, 13, circumferential groove, the 14, first prism,
15th, the second prism.
Specific embodiment
The present invention is further illustrated in the following with reference to the drawings and specific embodiments.
Embodiment 1
As shown in Figs. 1-3, a kind of pressure control self-draining valve, including valve body 1, spool 2, spring 3, the top of valve body 1
Equipped with valve body inlet 4, valve body inlet 4 is connected with the lower part of oil water separator, and the lower part of valve body 1 is equipped with valve outlet 5, for arranging
Impurity is put, valve body inlet 4 is communicated with valve outlet about 5, and spool 2 is arranged on inside valve body 1, lower part and the spring 3 of spool 2
One end is fixedly linked, and the other end and 1 lower part of valve body of spring 3 are fixedly linked.The top of valve body 1 and the lower part of oil water separator can
To be connected through a screw thread, pipe collar connection, welding, seal in a manner of interference fit, key, pin etc. it is connected.Spool 2 and valve body 1 and spring 3
Connection can be welding, screw fix etc..
Valve body 1 is internally provided with the first cylinder 7 and the second cylinder 8, and the first cylinder 7 and the second cylinder 8 are in ladder
The hollow-core construction of shape, spool 2 are contacted with second cylinder 8 on 5 top of valve body inlet 4 and valve outlet for line.Spool 2 is ball
Body, the diameter of spool 1 are more than the diameter of 4 and second cylinder 8 of valve body inlet, and the diameter of spool 2 is less than the straight of the first cylinder 7
Diameter, 4 or second cylinder 8 of valve body inlet and 7 connecting place of the first cylinder are vertical connection；The material of sphere can be metal,
Plastics etc..
Spring 3 is greater than between the gravity of spool 2, spool 2 and valve body 1 to the upward thrust of spool 2 in frictional force and spool 2
The summation of this three of portion's sewage gravity so that when not having air pressure or air pressure very little in oil water separator, spool 2 can be in spring force
It is moved up under effect, so as to discharge greasy dirt and moisture；But spring 3 cannot be excessive to the upward thrust of spool 2, especially not
The air pressure that can be more than in oil water separator, otherwise spool 2 may be always situated in uppermost position in fig-ure, and leads to that greasy dirt and water cannot be discharged
Point.
Fig. 1 does not work for oil water separator system, and in container during no pressure, spool 2 is located at most upper under spring force
End position, spool 2 are contacted with valve body inlet 4, at this time no unloading water；Fig. 2 works for oil water separator system, has pressure in container
When, spool 2 is located at lowest positions under gas pressure, and spool 2 is contacted with second cylinder 8 on 5 top of valve outlet, at this time
No unloading water；Fig. 3 is after oil water separator system stalls, container inner pressure is laid down, and spool 2 is under spring force under
Up move, since 2 diameter of spool is less than the diameter of the first cylinder 7, sewerage during this.
Embodiment 2
As Figure 4-8, valve body 1 is internally provided with the first cylinder 7 and the second cylinder 8, the first cylinder 7 and the second circle
The stepped hollow-core construction of cylinder 8, spool 2 are contacted with valve body inlet 4 for line.The top of spool 2 be frustum cone structure, spool 2
Lower part for cylindrical structure, in the horizontal direction equipped with cross-hole 9, the point of intersection of cross-hole 9 is set on the top inside spool 2
There is an osculum 10 straight down, the lower part inside spool 2 is equipped with groove 11, and the top of groove 11 is connected with osculum 10, valve
The maximum gauge of the frustum cone structure on 2 top of core is more than the diameter of valve body inlet 4, and the diameter of the cylinder of 2 lower part of spool is less than the
The diameter of one cylinder 7, the cylinder diameter of 2 lower part of spool are slightly less than the diameter of the second cylinder 8, justify spool 2 and second
8 clearance fit of cylinder, the cylinder diameter of 2 lower part of spool are more than the diameter of valve outlet 5.
As shown in figure 4, oil water separator system does not work, in container during no pressure, spool 2 is located under spring force
The top position, 2 top of spool are in close contact with valve body inlet 4,2 lower part of spool and 8 clearance fit of the second cylinder, at this time not
Sewerage；As shown in figure 5, oil water separator system works, when having pressure in container, spool 2 is located at most lower under gas pressure
End position, the cross-hole 9 of spool 2 are located in the second cylinder 8, are in close contact with the second cylinder 8, at this time no unloading water；
As shown in fig. 6, after oil water separator system stalls, container inner pressure is laid down, and spool 2 is under spring force from lower to upper
Movement, when cross-hole 9 exposes out of second cylinder 8, cross-hole 9 is located in the first cylinder 7, and sewage is from ten at this time
Word through-hole 9 is flowed into the vertical drainage hole 10 in spool 2, is finally discharged from valve outlet 5.Other structures are the same as embodiment 1.
Embodiment 3
As shown in Figures 9 and 10, valve body 1 is internally provided with the first cylinder 7 and the second cylinder 8, the first cylinder 7 and second
The stepped hollow-core construction of cylinder 8, spool 2 are contacted with valve body inlet 4 for face.Spool 2 is sphere, under valve body inlet 4
Hold for the corresponding curved-surface structure of the spherical surface of sphere, ensure that sphere with valve body inlet 4 is that face contacts, 2 and second cylinder of spool
Body 8 is contacted for line, and the diameter of spool 2 is more than the diameter of 4 and second cylinder 8 of valve body inlet, and the diameter of spool 2 is less than the first circle
The diameter of cylinder 7.Other structures are the same as embodiment 1.
Embodiment 4
As shown in FIG. 11 and 12, valve body 1 is internally provided with the first cylinder 7 and the second cylinder 8, the first cylinder 7 and
Second cylinder 8 on the stepped hollow-core construction of two cylinders 8, spool 2 and 5 top of valve body inlet 4 and valve outlet is face
Contact.The top of spool 2 is frustum cone structure, and the lower part of spool 2 is cylindrical structure, and the top inside spool 2 is in the horizontal direction
Equipped with cross-hole 9, the point of intersection of cross-hole 9 is equipped with osculum 10 straight down, and the lower part inside spool 2 is equipped with groove
11, the top of groove 11 is connected with osculum 10, and the lower end of valve body inlet 4 is the conical surface phase with the frustum cone structure on 2 top of spool
Corresponding curved-surface structure, the maximum gauge of the frustum cone structure on 2 top of spool are more than the diameter of valve body inlet 4, the circle of 2 lower part of spool
The diameter of cylinder is less than the diameter of the first cylinder 7, and the cylinder diameter of 2 lower part of spool is slightly less than the diameter of the second cylinder 8,
Make 2 and second cylinder of spool, 8 clearance fit, the cylinder diameter of 2 lower part of spool is more than the diameter of valve outlet 5.Other knots
Structure is the same as embodiment 1.
Embodiment 5
As shown in figures 13-16, valve body 1 is internally provided with the first cylinder 7 and the second cylinder 8, the first cylinder 7 and second
The stepped hollow-core construction of cylinder 8, spool 2 and second cylinder 8 on 5 top of valve body inlet 4 and valve outlet connect for face
It touches.Spool 2 is cylindrical structure, and spool 2 is internally provided with through-hole 12, and the both sides of spool 2 are equipped with circumferential groove 13, inside valve body 1
Centre is equipped with the first cylinder 7, and the upper and lower of the first cylinder 7 is respectively equipped with the second cylinder 8, between 2 and second cylinder 8 of spool
Gap coordinates, and the diameter of spool 2 is less than the diameter of the first cylinder 7, and the diameter of spool 2 is more than valve body inlet 4 and valve outlet 5
Diameter.Circumferential groove 13 is primarily to process and using convenient and design during workpiece.
As shown in figure 13, oil water separator system does not work, in container during no pressure, the position under spring force of spool 2
In the top position, the outlet of the horizontal direction of through-hole 12 and second cylinder 8 on top are in close contact, at this time no unloading water；
As shown in figure 14, oil water separator system works, and when having pressure in container, spool 2 is located at lowest positions under gas pressure,
The outlet of the horizontal direction of through-hole 12 and the second cylinder 8 of lower part are in close contact, at this time no unloading water；As shown in figure 15, it is oily
After separator system stalls, container inner pressure is laid down, and spool 2 moves from bottom to top under spring force, leads at this time
The outlet of the horizontal direction in hole 12 is located in the first cylinder 7, and sewage is flowed into from 2 top of spool in through-hole 12, flows into the first circle
Then cylinder 7 flows out valve outlet 5 through the second cylinder 8.The shape of through-hole 12 is " L " shape, " Pie " shape etc., and through-hole 12 can be
Cylindrical hole, prismatic hole etc. can be realized sewage above valve body 1 to the outflow of 1 downside of valve body, other structures
With embodiment 1.
Embodiment 6
As shown in FIG. 17 and 18, a kind of pressure control self-draining valve, including valve body 1, spool 2, spring 3, valve body 1 it is upper
Portion is equipped with valve body inlet 4, and valve body inlet 4 is connected with the lower part of oil water separator, and the lower part of valve body 1 is equipped with valve outlet 5, is used for
Discharge impurities, valve body inlet 4 are communicated with valve outlet about 5, and spool 2 is arranged on inside valve body 1, lower part and the spring 3 of spool 2
One end be fixedly linked, the other end and 1 lower part of valve body of spring 3 are fixedly linked.The top of valve body 1 and the lower part of oil water separator
It can be connected through a screw thread, pipe collar connection, welding, all multi-method sealings such as interference fit, key, pin are connected.Spool 2 and valve body 1
Connection with spring 3 can be welding, screw fixation etc..
Valve body 1 is internally provided with the first prism 14 of hollow-core construction, the second prism 15, upper and lower point of the first prism 14
Not She You the second prism 15, spool 2 contacts with second prism 15 on 5 top of valve body inlet 4 or valve outlet for face.Spool
2 be prism structure, and spool 2 is internally provided with through-hole 12, and the both sides of spool 2 are equipped with circumferential groove 13, the outer surface of spool 2 and valve body
The internal surface gaps cooperation of 1 the second prism 15, the first prism 14 that the bottom surface length of side of spool 2 is less than in valve body 1 correspond to
The bottom surface length of side.Its operation principle is identical with the operation principle in embodiment 5.
The prism structure of spool 2 can be triangular prism, quadrangular, pentagonal prism, hexagonal prisms or any prism.
Claims (2)
1. a kind of pressure controls self-draining valve, including valve body, spool, spring, it is characterised in that：The top of the valve body is equipped with
Valve body inlet, valve body inlet are connected with the lower part of pressure vessel, and the lower part of valve body is equipped with valve outlet, for discharge impurities, valve
Body entrance communicates up and down with valve outlet, and the spool is arranged on valve inner, and the lower part of spool is connected with one end of spring,
The other end of spring is connected with valve body lower portion；
The valve inner is equipped with the first cylinder and the second cylinder, the first cylinder and the stepped sky of the second cylinder
Core structure, spool are contacted with valve body inlet for face；
The spool is cylindrical structure, and spool is internally provided with through-hole, and the both sides of spool are equipped with circumferential groove, the centre of valve inner
Equipped with the first cylinder, the upper and lower of the first cylinder is respectively equipped with the second cylinder, spool with the second cylinder clearance fit,
The diameter of spool is less than the diameter of the first cylinder, and the diameter of spool is more than the diameter of valve body inlet and valve outlet；
The shape of the through-hole is " L " shape or " Pie " shape.
2. a kind of pressure controls self-draining valve, including valve body, spool, spring, it is characterised in that：The top of the valve body is equipped with
Valve body inlet, valve body inlet are connected with the lower part of pressure vessel, and the lower part of valve body is equipped with valve outlet, for discharge impurities, valve
Body entrance communicates up and down with valve outlet, and the spool is arranged on valve inner, and the lower part of spool is connected with one end of spring,
The other end of spring is connected with valve body lower portion；
The valve inner is equipped with the first prism, the second prism of hollow-core construction, and the upper and lower of the first prism is respectively equipped with
Second prism, spool are contacted with second prism on valve body inlet or valve outlet top for face；
The spool is prism structure, and spool is internally provided with through-hole, and the both sides of spool are equipped with circumferential groove, the side of spool and valve
The side clearance cooperation of second prism of body, the bottom surface length of side of spool are less than the corresponding bottom surface side of the first prism in valve body
It is long；
The shape of the through-hole is " L " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810617425.5A CN108679276B (en) | 2016-12-05 | 2017-03-07 | A kind of pneumatic control valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016213235175 | 2016-12-05 | ||
| CN201621323517 | 2016-12-05 |
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| CN201810617425.5A Division CN108679276B (en) | 2016-12-05 | 2017-03-07 | A kind of pneumatic control valve |
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| Publication Number | Publication Date |
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| CN106763950A CN106763950A (en) | 2017-05-31 |
| CN106763950B true CN106763950B (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810617425.5A Active CN108679276B (en) | 2016-12-05 | 2017-03-07 | A kind of pneumatic control valve |
| CN201710132387.XA Active CN106763950B (en) | 2016-12-05 | 2017-03-07 | A kind of pressure controls self-draining valve |
| CN201720216516.9U Active CN206522488U (en) | 2016-12-05 | 2017-03-07 | A kind of Stress control self-draining valve |
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| CN201810617425.5A Active CN108679276B (en) | 2016-12-05 | 2017-03-07 | A kind of pneumatic control valve |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720216516.9U Active CN206522488U (en) | 2016-12-05 | 2017-03-07 | A kind of Stress control self-draining valve |
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| CN108679276B (en) * | 2016-12-05 | 2019-07-09 | 陈博思 | A kind of pneumatic control valve |
| CN211942584U (en) * | 2019-12-06 | 2020-11-17 | 杭州旗捷科技有限公司 | Valve assembly and ink cartridge having the same |
| CN111282794A (en) * | 2020-02-11 | 2020-06-16 | 丹阳市宇晟纺织新材料有限公司 | Fiberboard cutting edge material regenerated fiber particle separating device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN206522488U (en) | 2017-09-26 |
| CN108679276A (en) | 2018-10-19 |
| CN108679276B (en) | 2019-07-09 |
| CN106763950A (en) | 2017-05-31 |
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