CN108679276B - A kind of pneumatic control valve - Google Patents
A kind of pneumatic control valve Download PDFInfo
- Publication number
- CN108679276B CN108679276B CN201810617425.5A CN201810617425A CN108679276B CN 108679276 B CN108679276 B CN 108679276B CN 201810617425 A CN201810617425 A CN 201810617425A CN 108679276 B CN108679276 B CN 108679276B
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- Prior art keywords
- spool
- valve body
- valve
- prism
- spring
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Classifications
-
- 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
Abstract
A kind of pneumatic control 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, is used for discharge impurities, valve body inlet communicates up and down with valve outlet, the spool is arranged in 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.The invention has the benefit that structure is simple, it is easy to install and use；It avoids manual emission time-consuming and laborious, also avoids adverse effect caused by discharge not in time；When there is control pressure to act on a kind of pneumatic control valve of the invention, control pressure pushes valve core movement, closes discharge valve port, and when not having to control pressure, self-draining valve counter motion under the action of the spring opens discharge valve port, impurity can timely and effectively be discharged.
Description
Technical field
The present invention is a kind of application for a patent for invention " pressure control self-draining valve " (application number: 201710132387X；Shen
It please day: on 03 07th, 2017；Inventor: Chen Bosi just knows the rising sun；Applicant: Chen Bosi) divisional application.
The present invention relates to a kind of valve, especially a kind of pneumatic control valve.
Background technique
There is oil water separator in the air pipe line of diesel locomotive, for separating 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, it is bad to will lead to air purification effect, greasy dirt and moisture is mingled in pure compressed air, and influence 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 being mingled with during air is compressed, to purify air.When compressed air enters grease point
After device shell, 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 are hit and are washed by centrifugation under centrifugal force and inertia force effect, and density ratio compressed air is big
Gaseous state lubricating oil and vapor be separated into liquid, and be deposited in housing bottom.It is long using the time, it has 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. be under current service condition, when sewage is more by manually periodically discharging, otherwise ponding will lead to it is dry
Dry device operational effect is bad.
2. if in winter, excessive ponding can also cause the air pipe line to freeze.
3. if guaranteeing normal effective use of oil water separator want to realize artificial periodically draining, will definitely increase operation
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 cannot normal blowdown.
Existing major limitation condition:
1. being unable to large-scale redevelopment original system.
2. excessive cost cannot be put into.
3. in the case where safety operation danger cannot be brought to operator.
Summary of the invention
To solve the above-mentioned problems, the present invention installs pressure control additional by removing the sewage draining valve of oil water separator lower part
Using the compressed air in oil water separator the impurity in oil water separator can be discharged, effectively in the self-draining valve of system at any time
Ground prevents freezing for oil water separator, provides a kind of pneumatic control valve.
The present invention is achieved by the following technical solutions:
The top of a kind of pneumatic control valve, including valve body, spool, spring, the valve body is equipped with valve body inlet, the valve body
Entrance is connected with container outlet, and the lower part of the valve body is equipped with valve outlet, above and below the valve body inlet and the valve outlet
It communicates, the spool is arranged in the valve inner, and the lower part of the spool is connected with one end of the spring, the spring
The other end is connected with the valve body lower portion；
The valve inner is ladder circle column hollow structure or ladder prism-shaped hollow structure；The spool be with it is described
The corresponding cylindrical structure of valve body or prism structure；
The valve core inside is equipped with through-hole, is face contact at the spool and valve body contact.
Further, the valve inner is equipped with the first cylindrical body, and the upper and lower of the first cylindrical body is respectively equipped with second
Cylindrical body, first cylindrical body and the stepped hollow structure of second cylindrical body；
The spool is cylindrical structure, and the spool is equipped with circumferential groove, the spool and the second cylinder body space
Cooperation, the diameter of the spool is less than the diameter of the first cylindrical body, and the diameter of the spool is greater than valve body inlet and valve outlet
Diameter；
The shape of the through-hole is L shape or " Pie " shape.
Further, the valve inner is equipped with the first prism, and the upper and lower of the first prism is respectively equipped with second
Prism, first prism and the stepped hollow structure of second prism；
The spool is prism structure, and the spool is equipped with circumferential groove, the spool and the second prism body space
Cooperation, the bottom surface side length of the spool are less than the corresponding bottom surface side length of intracorporal first prism of the valve；
The shape of the through-hole is L shape.
Compared with prior art, the invention has the benefit that
A kind of pneumatic control valve provided by the invention, structure is simple, easy for installation；Avoid manual emission time-consuming and laborious,
Avoid adverse effect caused by discharge not in time；When having compressed air in the air pipe line of diesel locomotive, self-draining valve
Inner cavity be filled with compressed air, the pressure of air pushes spool to move down, and discharge valve port is closed, when empty without compression in air pipe line
When gas, the air pressure that the inner cavity of self-draining valve does not push spool downward, spool moves up under the action of the spring, upper
Discharge valve port is opened during moving, and the impurity such as the greasy dirt in oil water separator and water dirt are discharged, can not compress sky in system
Air does not have the impurity being timely and effectively discharged in oil water separator when pressure in gas or system, is effectively prevented oil water separator
Freeze；Winter is also conceivable to prevent automatic drain valve external power supply the valve port of drain valve to freeze.The self-draining valve is also
It can be applied to inside other be connected with the bottom of the device of compressed air, for impurity such as oil, water in tapping equipment.
Detailed description of the invention
Spherical valve core when Fig. 1 is a kind of pneumatic control valve line contact of the invention is located at structure when uppermost position in fig-ure in valve body
Figure.
Spherical valve core when Fig. 2 is a kind of pneumatic control valve line contact of the invention is located at structure when lowermost position is set in valve body
Figure.
Spherical valve core when Fig. 3 is a kind of pneumatic control valve line contact of the invention is located at structure when middle position in valve body
Figure.
Taper valve core when Fig. 4 is a kind of pneumatic control valve line contact of the invention is located at structure when uppermost position in fig-ure in valve body
Figure.
Taper valve core when Fig. 5 is a kind of pneumatic control valve line contact of the invention is located at structure when lowermost position is set in valve body
Figure.
Taper valve core when Fig. 6 is a kind of pneumatic control valve line contact of the invention is located at structure when middle position in valve body
Figure.
The partial enlargement of taper valve core and valve body inlet cooperation when Fig. 7 is a kind of pneumatic control valve line contact of the invention
Figure.
Fig. 8 is a kind of A-A cross-sectional view of the taper valve core of pneumatic control valve of the present invention.
Spherical valve core when Fig. 9 is a kind of pneumatic control valve face contact of the invention is located at structure when uppermost position in fig-ure in valve body
Figure.
The partial enlargement of spherical valve core and valve body inlet cooperation when Figure 10 is a kind of pneumatic control valve face contact of the invention
Figure.
Taper valve core when Figure 11 is a kind of pneumatic control valve face contact of the invention is located at knot when uppermost position in fig-ure in valve body
Composition.
The partial enlargement of taper valve core and valve body inlet cooperation when Figure 12 is a kind of pneumatic control valve face contact of the invention
Figure.
Cylindrical spool when Figure 13 is a kind of pneumatic control valve face contact of the invention is located at knot when uppermost position in fig-ure in valve body
Composition.
Cylindrical spool when Figure 14 is a kind of pneumatic control valve face contact of the invention is located at knot when lowermost position is set in valve body
Composition.
Cylindrical spool when Figure 15 is a kind of pneumatic control valve face contact of the invention is located at knot when middle position in valve body
Composition.
The B-B cross-sectional view of cylindrical spool when Figure 16 is a kind of pneumatic control valve face contact of the invention.
When quadrangular spool when Figure 17 is a kind of pneumatic control valve face contact of the invention is located at uppermost position in fig-ure in valve body
Structure chart.
The C-C cross-sectional view of quadrangular spool when Figure 18 is a kind of pneumatic control valve face contact of the invention.
In figure: 1, valve body, 2, spool, 3, spring, 4, valve body inlet, 5, valve outlet, 6, container outlet, the 7, first cylinder
Body, the 8, second cylindrical body, 9, through-hole, 10, circumferential groove, the 11, first prism, the 12, second prism, 13, cross-hole, 14, row
Water hole, 15, groove.
Specific embodiment
The present invention is further illustrated in the following with reference to the drawings and specific embodiments.
Embodiment 1
As shown in Figure 1-3, a kind of pneumatic control valve, including valve body 1, spool 2, spring 3, the top of valve body 1 are equipped with valve body
Entrance 4, valve body inlet 4 are connected with the lower part of oil water separator, and the lower part of valve body 1 is equipped with valve outlet 5, are used for discharge impurities,
Valve body inlet 4 is communicated with about 5 valve outlet, and spool 2 is arranged inside valve body 1, and the lower part of spool 2 and one end of spring 3 are solid
Fixed to be connected, 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 pass through
The modes such as threaded connection, pipe collar connection, welding, interference fit, key, pin seal connected.The connection of spool 2 and valve body 1 and spring 3
It can be fixed etc. for welding, screw.
The first cylindrical body 7 and the second cylindrical body 8 are equipped with inside valve body 1, the first cylindrical body 7 and the second cylindrical body 8 are in ladder
The hollow structure of shape, spool 2 are contacted with second cylindrical body 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 greater than the diameter of valve body inlet 4 and the second cylindrical body 8, and the diameter of spool 2 is straight less than the first cylindrical body 7
Diameter, valve body inlet 4 or the second cylindrical body 8 are vertical connect with 7 connecting place of the first cylindrical body；The material of sphere can for metal,
Plastics etc..
Spring 3 is greater than between the gravity of spool 2, spool 2 and valve body 1 in frictional force and spool 2 to the upward thrust of spool 2
The summation of this three of portion's sewage gravity, when so that 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 that greasy dirt and moisture be discharged；But spring 3 cannot be excessive to the upward thrust of spool 2, especially not
The air pressure that can be greater than in oil water separator, otherwise spool 2 always situated in uppermost position in fig-ure may lead to that greasy dirt and water cannot be discharged
Point.
Fig. 1 is that oil water separator system does not work, and in container when 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 is the work of 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 cylindrical body 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
It up moves, the diameter due to 2 diameter of spool less than the first cylindrical body 7, sewerage during this.
Embodiment 2
As shown in Figure 4-8, the first cylindrical body 7 and the second cylindrical body 8, the first cylindrical body 7 and the second circle are equipped with inside valve body 1
The stepped hollow structure of cylinder 8, spool 2 are contacted with valve body inlet 4 for line.The top of spool 2 is frustum cone structure, spool 2
Lower part be cylindrical structure, the top inside spool 2 is equipped with cross-hole 13, the point of intersection of cross-hole 13 in the horizontal direction
Equipped with drainage hole 14 straight down, the lower part inside spool 2 is equipped with groove 15, and the top of groove 15 is connected with drainage hole 14,
The maximum gauge of the frustum cone structure on 2 top of spool is greater than the diameter of valve body inlet 4, and the diameter of the cylindrical body of 2 lower part of spool is less than
The diameter of first cylindrical body 7, the cylinder diameter of 2 lower part of spool are slightly less than the diameter of the second cylindrical body 8, make spool 2 and second
8 clearance fit of cylindrical body, the cylinder diameter of 2 lower part of spool are greater than the diameter of valve outlet 5.
As shown in figure 4, oil water separator system does not work, in container when no pressure, spool 2 is located under spring force
The top position, 2 top of spool and valve body inlet 4 are in close contact, 2 lower part of spool and 8 clearance fit of the second cylindrical body, 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
The cross-hole 13 of end position, spool 2 is located in the second cylindrical body 8, is in close contact with the second cylindrical body 8, at this time no unloading water；
As shown in fig. 6, container inner pressure is laid down after oil water separator system stalls, spool 2 is under spring force from lower to upper
Movement, when cross-hole 13 exposes out of second cylindrical body 8, cross-hole 13 is located in the first cylindrical body 7, at this time sewage from
Cross-hole 13 flows into the vertical drainage hole 14 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, the first cylindrical body 7 and the second cylindrical body 8, the first cylindrical body 7 and second are equipped with inside valve body 1
The stepped hollow structure of cylindrical body 8, spool 2 and valve body inlet 4 are face contact.Spool 2 is sphere, under valve body inlet 4
End is curved-surface structure corresponding with the spherical surface of sphere, guarantees sphere and valve body inlet 4 is face contact, spool 2 and the second cylinder
Body 8 is line contact, and the diameter of spool 2 is greater than the diameter of valve body inlet 4 and the second cylindrical body 8, 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, the first cylindrical body 7 and the second cylindrical body 8, the first cylindrical body 7 and the are equipped with inside valve body 1
Second cylindrical body 8 on the stepped hollow structure of two cylindrical bodies 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 13, the point of intersection of cross-hole 13 is equipped with drainage hole 14 straight down, and the lower part inside spool 2 is equipped with recessed
The top of slot 15, groove 15 is connected with drainage hole 14, and the lower end of valve body inlet 4 is the conical surface 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 greater than the diameter of valve body inlet 4,2 lower part of spool
For the diameter of cylindrical body less than the diameter of the first cylindrical body 7, the cylinder diameter of 2 lower part of spool is slightly less than the straight of the second cylindrical body 8
Diameter, makes 8 clearance fit of spool 2 and the second cylindrical body, and the cylinder diameter of 2 lower part of spool is greater than the diameter of valve outlet 5.Other
Structure is the same as embodiment 1.
Embodiment 5
As shown in figures 13-16, the first cylindrical body 7 and the second cylindrical body 8, the first cylindrical body 7 and second are equipped with inside valve body 1
The stepped hollow structure of cylindrical body 8, spool 2 and second cylindrical body 8 on 5 top of valve body inlet 4 and valve outlet connect for face
Touching.Spool 2 is cylindrical structure, and the inside of spool 2 is equipped with through-hole 9, and the outside of spool 2 is equipped with circumferential groove 10, inside valve body 1 in
Between be equipped with the first cylindrical body 7, the upper and lower of the first cylindrical body 7 be respectively equipped with the second cylindrical body 8,8 gap of spool 2 and the second cylindrical body
Cooperation, less than the diameter of the first cylindrical body 7, the diameter of spool 2 is greater than the straight of valve body inlet 4 and valve outlet 5 for the diameter of spool 2
Diameter.Circumferential groove 10 is primarily to process and using convenient and design when workpiece.
As shown in figure 13, oil water separator system does not work, in container when no pressure, the position under spring force of spool 2
In the top position, the outlet of the horizontal direction of through-hole 9 and second cylindrical body 8 on top are in close contact, at this time no unloading water；Such 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, leads to
The outlet of the horizontal direction in hole 9 and the second cylindrical body 8 of lower part are in close contact, at this time no unloading water；As shown in figure 15, grease point
After device system stalls, container inner pressure is laid down, spool 2 moves from bottom to top under spring force, at this time through-hole 9
The outlet of horizontal direction is located in the first cylindrical body 7, and sewage flows into through-hole 9 from 2 top of spool, flows into the first cylindrical body 7, so
Valve outlet 5 is flowed out by the second cylindrical body 8.The shape of through-hole 9 is L shape, " Pie " shape etc., through-hole 9 can for cylindrical hole,
Prismatic hole etc. can be realized sewage above valve body 1 to the outflow of 1 downside of valve body, the same embodiment of other structures
1。
Embodiment 6
As shown in FIG. 17 and 18, the top of a kind of pneumatic control valve, including valve body 1, spool 2, spring 3, valve body 1 is equipped with valve
Body entrance 4, valve body inlet 4 are connected with the lower part of oil water separator, and the lower part of valve body 1 is equipped with valve outlet 5, miscellaneous for discharging
Matter, valve body inlet 4 are communicated with about 5 valve outlet, and spool 2 is arranged inside valve body 1, the lower part of spool 2 and one end of spring 3
It is 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 can lead to
All multi-method sealings such as threaded connection, pipe collar connection, welding, interference fit, key, pin are crossed to be connected.Spool 2 and valve body 1 and spring 3
Connection can be fixed etc. for welding, screw.
Inside valve body 1 be equipped with hollow structure the first prism 11, the second prism 12, upper and lower point of the first prism 11
Not She You the second prism 12, second prism 12 on spool 2 and 5 top of valve body inlet 4 or valve outlet is face contact.Spool
2 be prism structure, and the inside of spool 2 is equipped with through-hole 9, and the outside of spool 2 is equipped with circumferential groove 10, the outer surface of spool 2 and valve body 1
The second prism 12 internal surface gaps cooperation, the first prism 11 that the bottom surface side length of spool 2 is less than in valve body 1 is corresponding
Bottom surface side length.Its working principle is identical as the working 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 pneumatic control valve, including valve body (1), spool (2), spring (3), it is characterised in that: the top of the valve body (1)
Equipped with valve body inlet (4), the valve body inlet (4) is connected with container outlet (6), and the lower part of the valve body (1) goes out equipped with valve body
Mouth (5), the valve body inlet (4) and the valve outlet (5) communicate up and down, and spool (2) setting is in the valve body (1)
The lower part in portion, the spool (2) is connected with one end of the spring (3), the other end of the spring (3) and the valve body (1)
Lower part is connected；
It is ladder circle column hollow structure inside the valve body (1)；The first cylindrical body (7) are equipped with inside the valve body (1), it is described
The upper and lower of first cylindrical body (7) is respectively equipped with the second cylindrical body (8), first cylindrical body (7) and second cylindrical body (8)
Stepped hollow structure；
The spool (2) is cylindrical structure corresponding with the valve body (1)；The spool (2) is equipped with circumferential groove (10), institute
Spool (2) and the second cylindrical body (8) clearance fit are stated, the diameter of the spool (2) is straight less than the first cylindrical body (7)
Diameter, the diameter of the spool (2) are greater than the diameter of valve body inlet (4) and valve outlet (5)；
Through-hole (9) are equipped with inside the spool (2), the spool (2) and valve body (1) contact position are face contact；The through-hole (9)
Shape be L shape or " Pie " shape.
2. a kind of pneumatic control valve, including valve body (1), spool (2), spring (3), it is characterised in that: the top of the valve body (1)
Equipped with valve body inlet (4), the valve body inlet (4) is connected with container outlet (6), and the lower part of the valve body (1) goes out equipped with valve body
Mouth (5), the valve body inlet (4) and the valve outlet (5) communicate up and down, and spool (2) setting is in the valve body (1)
The lower part in portion, the spool (2) is connected with one end of the spring (3), the other end of the spring (3) and the valve body (1)
Lower part is connected；
It is ladder prism-shaped hollow structure inside the valve body (1)；The first prism (11) are equipped with inside the valve body (1), institute
It states the upper and lower of the first prism (11) to be respectively equipped with the second prism (12), first prism (11) and second prism
The stepped hollow structure of body (12)；
The spool (2) is prism structure corresponding with the valve body (1)；The spool (2) is equipped with circumferential groove (10), institute
Spool (2) and the second prism (12) clearance fit are stated, the bottom surface side length of the spool (2) is less than in the valve body (1)
The corresponding bottom surface side length of first prism (11)；
Through-hole (9) are equipped with inside the spool (2), the spool (2) and valve body (1) contact position are face contact；The through-hole (9)
Shape be L shape.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016213235175 | 2016-12-05 | ||
| CN201621323517 | 2016-12-05 | ||
| CN201710132387.XA CN106763950B (en) | 2016-12-05 | 2017-03-07 | A kind of pressure controls self-draining valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710132387.XA Division CN106763950B (en) | 2016-12-05 | 2017-03-07 | A kind of pressure controls self-draining valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108679276A CN108679276A (en) | 2018-10-19 |
| CN108679276B true CN108679276B (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Application Number | Title | Priority Date | Filing Date |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113090604B (en) * | 2021-04-07 | 2023-07-04 | 海明液压技术有限公司 | 1D holds multi-functional intelligent control change valve function module unit of chamber formula |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106763950A (en) | 2017-05-31 |
| CN108679276A (en) | 2018-10-19 |
| CN106763950B (en) | 2018-07-10 |
| CN206522488U (en) | 2017-09-26 |
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