CN108980422A - A kind of check valve in adjustable cutoff direction - Google Patents
A kind of check valve in adjustable cutoff direction Download PDFInfo
- Publication number
- CN108980422A CN108980422A CN201811060997.4A CN201811060997A CN108980422A CN 108980422 A CN108980422 A CN 108980422A CN 201811060997 A CN201811060997 A CN 201811060997A CN 108980422 A CN108980422 A CN 108980422A
- Authority
- CN
- China
- Prior art keywords
- hole
- spool
- check valve
- shell
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
-
- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
Abstract
Present invention discloses a kind of check valves in adjustable cutoff direction, it includes first shell and second shell interconnected, first shell offers first through hole, second shell offers the 4th connecting hole being connected to first through hole, check valve further includes the first spring with the first spool of the first spool and extruding of first through hole sliding mating, salable 4th connecting hole of first spool, second shell offers the second through-hole, first shell offers the second connecting hole being connected to the second through-hole, and the second connecting hole and the 4th connecting hole are interconnected；Check valve further include: the second spring with the second spool of the second spool and extruding of the second through-hole sliding mating, salable second connecting hole of the second spool；The connecting rod being connected with the first spool and the second spool；Driving device, the movement of driving device drive link, driving device include at least two kinds of working conditions, and the state by changing driving device, which can control check valve, prevents the direction of liquid reverse flow.
Description
Technical field
The present invention relates to a kind of check valves.
Background technique
Check valve is that fluid can only be flowed along water inlet, and water outlet medium can not but flow back, and be commonly called as check valve.Check valve is again
Claim check-valves or non-return valve.It is empty for preventing oil stream reverse flow in hydraulic system, or for preventing from compressing in pneumatic system
Gas reverse flow.Check valve has through type and two kinds of right-angle type.
Existing check valve can only allow oil liquid to flow to a direction, realize and keep in oil liquid when fixed-direction flows
It opens, and keeps cut-off when oil liquid reverse flow, but in some cases, oil liquid is needed to be reversed one-way flow, i.e. oil liquid
From former water outlet to former water inlet one-way flow, at this point, then needing reversely to install check valve, or two check valves are used,
Dismount time-consuming and laborious, and oil liquid easily flows out, and pollutes environment.
Summary of the invention
It is an object of the invention in view of the above-mentioned drawbacks in the prior art, provide a kind of adjustable check valve in direction,
The direction for preventing oil liquid reverse flow can easily be controlled.
For achieving the above object, present invention employs following technical solutions: a kind of check valve in adjustable cutoff direction,
It includes the second rod piece of first shell and the second rod piece of second shell interconnected, and second rod piece of first shell offers
The second rod piece of first through hole, second rod piece of second shell offer the 4th be connected to second rod piece of first through hole and connect
The second rod piece of hole is connect, the check valve further includes first the second rod piece of spool with second rod piece of first through hole sliding mating
And first the second rod piece of spring of second rod piece of the first spool is squeezed, second rod piece of the first spool is salable described
4th the second rod piece of connecting hole, second rod piece of second shell offer second the second rod piece of through-hole, the first shell
Two rod pieces offer second the second rod piece of connecting hole being connected to second rod piece of the second through-hole, second connecting hole second
Rod piece and the second rod piece of the 4th connecting hole are interconnected；
The check valve further include:
With second the second rod piece of spool and extruding second spool of second rod piece of the second through-hole sliding mating
The second rod piece of second spring of second rod piece, salable second connecting hole, second rod piece of the second rod piece of the second spool；
The second rod piece of connecting rod being connected with second rod piece of the first spool and second rod piece of the second spool；
The second rod piece of driving device, second rod piece of driving device drive the second rod piece of connecting rod movement, the drive
Dynamic the second rod piece of device includes at least two kinds of working conditions, and in the first operative state, second rod piece of connecting rod can drive institute
It states first the second rod piece of spool and is detached from the second rod piece of the 4th connecting hole, second the second rod piece of spool is in second spring the at this time
Second rod piece of the second connecting hole is sealed under the action of two rod pieces；In a second operative state, second rod piece of connecting rod can
Second rod piece of the second spool is driven to be detached from second rod piece of the second connecting hole, first the second rod piece of spool is described at this time
The second rod piece of the 4th connecting hole is sealed under the action of first the second rod piece of spring.
In addition, the present invention also proposes following attached technical scheme:
The check valve in the adjustable cutoff direction further includes being connected to second rod piece of the first spool and the connecting rod
First the second rod piece of pull rod between two rod pieces, second rod piece of the first pull rod and second rod piece of connecting rod sliding are coupled.
First pull rod, second rod piece is additionally provided with the second rod piece of first baffle, and second rod piece of connecting rod includes being located at
First the second rod piece of rod piece between the second rod piece of second rod piece of first baffle and the first shell.
The check valve in the adjustable cutoff direction further includes being connected to second rod piece of the second spool and the connecting rod
Second the second rod piece of pull rod between two rod pieces, second rod piece of the second pull rod and second rod piece of connecting rod sliding are coupled.
Second pull rod, second rod piece is provided with the second rod piece of second baffle, and second rod piece of connecting rod includes being located at institute
State second the second rod piece of rod piece between the second rod piece of the second rod piece of second baffle and the second shell.
Second rod piece of first shell offers and second rod piece of first through hole and second connecting hole second
First the second rod piece of recirculation hole that rod piece is connected；
Second rod piece of second shell offers and second rod piece of the second through-hole and the 4th connecting hole second
Second the second rod piece of recirculation hole that rod piece is connected, second rod piece of the second recirculation hole and second rod piece of the first recirculation hole
It matches.
Second rod piece of first shell is additionally provided with the first retaining and covers the second rod piece, and second rod piece of the first spring supports
It connects and is covered between the second rod piece and second rod piece of the first spool in first retaining.
Second rod piece of second shell is additionally provided with the second retaining and covers the second rod piece, and second rod piece of second spring supports
It connects and is covered between the second rod piece and second rod piece of the second spool in second retaining.
First spool, second rod piece offers first the second rod piece of blind hole, and second rod piece of the first spring is set to
In first blind hole, second rod piece.
Second spool, second rod piece offers second the second rod piece of blind hole, and second rod piece of second spring is set to
In second blind hole, second rod piece.
Compared with the prior art, the present invention has the advantages that the check valve in adjustable cutoff direction of the invention passes through change
The state of first spool and the second spool enables this check valve easily to control the direction for preventing oil liquid reverse flow, behaviour
Make simple and convenient, high reliablity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that check valve is in a kind of off state in the present invention.
Fig. 2 is the sectional view in the portion A-A in Fig. 1.
Fig. 3 is the bottom view of check valve in Fig. 1.
Fig. 4 is the left view of check valve in Fig. 3.
Fig. 5 is the structural schematic diagram that check valve is in another off state in the present invention.
Fig. 6 is the sectional view in the portion B-B in Fig. 5.
Specific embodiment
In conjunction with the preferred embodiment and its attached drawing is further non-limitingly described in detail technical solution of the present invention.
As shown in Figure 1, corresponding to a kind of check valve in the adjustable cutoff direction of preferred embodiment of the present invention comprising mutually
The first shell 10 and second shell 50 of connection, first shell 10 and second shell 50 pass through flanged joint, 10 He of first shell
Second shell 50 is respectively arranged with the first flange disk 11 and second flange disk 51 of matching, by bolt and nut (not shown) by
One shell 10 and second shell 50 tighten together.
As shown in Figures 2 to 4, the first through flow hole 12 is offered on the end face of 10 one end of first shell, in the other end face
The first connecting hole 13 and the second connecting hole 14 are offered, the first connecting hole 13 and first of connection is also provided with inside first shell 10
The first through hole 15 of through flow hole 12, it is preferred that the first connecting hole 13 and first through hole 15 are coaxially set；Second connecting hole 14 with
First through flow hole 12 is connected, and is used to connect external oil liquid pipeline.
The structure of second shell 50 is similar with first shell 10, offers on the end face of one end and 12 phase of the first through flow hole
The second through flow hole 52 matched, offers third connecting hole 53 and the 4th connecting hole 54 in the other end face, inside second shell 50
It is also provided with the second through-hole 55 of connection third connecting hole 53 and the 4th connecting hole 54, it is preferred that third connecting hole 53 and second
Through-hole 55 is coaxially set；4th connecting hole 54 is connected with the second through flow hole 52, is used to connect external oil liquid pipeline.
Preferably, after first shell 10 is connected with second shell 50, the second connecting hole 14 and the second through-hole 55 are same
Axis；4th connecting hole 54 and 15 coaxial line of first through hole.
Check valve of the invention further includes that the first spool 16, the first retaining cover the 17, first pull rod 18, the first spring 19, the
Two spools 56, the second retaining cover the 57, second pull rod 58, second spring 59, driving device 100 and connecting rod 101.
Driving device 100 is connected with connecting rod 101, and drive link 101 is for linear motion, and driving device 100 can be gas
Cylinder, linear motor, electric cylinders, electric telescopic rod etc. can be carried out the device of linear drives, and in the present embodiment, driving device 100 is used
Cylinder 100.
Wherein, the first spool 16 sliding mating is in first through hole 15, in one embodiment, with first through hole 15
Mating relationship can refer to the mating relationship of oil cylinder piston in the prior art and cylinder body.First spool, 16 one end is provided with salable
First conical surface 71 of the 4th connecting hole 54, the other end offer the first blind hole 70, and the first bottom surface 72 of the first blind hole 70 is also
Offer the first screw hole 73 being threadedly coupled with the first pull rod 18.Lead in radial be also provided with of the first spool 16 with first, second
The first recirculation hole 75 that discharge orifice 12,52 is in fluid communication.
First pull rod, 18 one end is screwed onto the first screw hole 73, and the other end stretches out the first connecting hole 13 and is threaded through connecting rod
In 101 the first matching hole 102, that end that the first pull rod 18 extends the first matching hole 102 is provided with first baffle 20, and
The outer diameter of first baffle 20 is greater than the diameter of the first matching hole 102.
First connecting hole, 13 surface is provided with screw thread, and the first retaining set 17 is threaded in the first connecting hole 13, and first
Pull rod 18 is threaded through in the first retaining set 17, and the first retaining set 17 is provided with the first supporting surface 74.
First spring 19 be arranged in the first blind hole 70, be set on the first pull rod 18, and both ends respectively with first
Support face 74 and the first bottom surface 72 offset.First spring 19 applies the power to 54 direction of the 4th connecting hole to the first spool 16；Work as gas
(with reference to Fig. 2) when cylinder 100 is in retracted mode, connecting rod 101 is not contacted with first baffle 20, and the first spool 16 resists and seals institute
State the 4th connecting hole 54；And (Fig. 6 is referred to) when cylinder 100 becomes stretching state, connecting rod 101 pushes out first baffle 20,
First spool 16 is disengaged with the 4th connecting hole 54.
The sliding mating of second spool 56 is in the second through-hole 55, in one embodiment, with matching for the second through-hole 55
The relationship of connecing can refer to the mating relationship of oil cylinder piston in the prior art and cylinder body.Second spool, 56 one end is provided with salable described
Second conical surface 81 of the second connecting hole 14, the other end offer the second blind hole 80, and the second bottom surface 82 of the second blind hole 80 also opens up
There is the second screw hole 83 being threadedly coupled with the second pull rod 58.It is also provided with and the first, second through flow hole in 56 radial direction of the second spool
12,52 the second recirculation hole 85 being in fluid communication.
Second pull rod, 58 one end is screwed onto the second screw hole 83, and the other end stretches out the first connecting hole 13 and is threaded through connecting rod
In 101 the second matching hole 103, that end that the second pull rod 58 extends the second matching hole 103 is provided with second baffle 60, and
The outer diameter of second baffle 60 is greater than the diameter of the second matching hole 103.
53 surface of third connecting hole is provided with screw thread, and the second retaining set 57 is threaded in third connecting hole 53, and second
Pull rod 58 is threaded through in the second retaining set 57, and the second retaining set 57 is provided with the second supporting surface 84.
Second spring 59 be arranged in the second blind hole 80, be set on the second pull rod 58, and both ends respectively with second
Support face 84 and the second bottom surface 82 offset.Second spring 59 applies the power to 55 direction of the second through-hole to the second spool 56；Work as cylinder
100 (refer to Fig. 6) when being in stretching state, and connecting rod 101 is not contacted with second baffle 60, and the second spool 56 is resisted and sealed described
Second connecting hole 14；And (Fig. 2 is referred to) when cylinder 100 becomes retracted mode, connecting rod 101 pulls out second baffle 60, this
When the first spool 16 disengaged with the 4th connecting hole 54.
Connecting rod 101 can use integrally formed mode, in the present embodiment, the considerations of for processing cost, using multistage
The mode of assembling constitutes connecting rod 101.Specifically, connecting rod 101 includes the first rod piece 104 being set on the first pull rod 18, is arranged
The second rod piece 108 on the second pull rod 58, is arranged the third rod piece 105 for being threaded through the first rod piece 104 and being bolted
On third rod piece 105 and be bolted the 4th rod piece 106, be threaded through on the 4th rod piece 106 and be bolted
The 5th rod piece 107.Wherein the 5th rod piece 107 is also threaded through in the second rod piece 108 and is bolted, the 5th rod piece 107
One end is provided with connector sleeve 109, and the piston shaft end of cylinder 100 is connected in connector sleeve 109.First matching hole, 102 He above-mentioned
Second matching hole 103 is provided with the end of the first rod piece 104 and the second rod piece 108 respectively.For convenient for guiding, in first flange disk
11 and second flange disk 51 on be also provided with the pilot hole 110 of perforation, the sliding mating of the 5th rod piece 105 is in pilot hole 110.
As depicted in figs. 1 and 2, when cylinder 100 is in retracted mode, first baffle 20 is not contacted with the first rod piece 104,
First spool 16 resists the 4th connecting hole 54 under spring force, and second baffle 60 is fixed by the second rod piece 108 so that the
Two spools 56 are disengaged with the second connecting hole 14, at this point, oil liquid can push the first spool open after the entrance of the 4th connecting hole 54
16, and flowed out by the first, second through flow hole 12,52 from the second connecting hole 14；And if oil liquid is flowed into from the second connecting hole 14
When, the first spool 16 is oppressed due to the first spring 19 and resists the 4th connecting hole 54, the pressure of oil liquid can further make the first spool
16 press the 4th connecting hole 54, and therefore, oil liquid will be unable to flow into the 4th connecting hole 54, that is, only oil liquid be allowed to connect from second at this time
The inflow of hole 14 is connect, is flowed out from the 4th connecting hole 54.
Correspondingly, as shown in Figure 5 and Figure 6, when the variation of cylinder 100 is stretching state, the first rod piece 104 drives first gear
Plate 20 is moved to the left, so that the first spool 16 is disengaged with the 4th connecting hole 54, and the second rod piece 108 and second baffle 60 are de-
From contact, the second spool 56 resists the second connecting hole 14 under spring force, at this point, oil liquid enters from the second connecting hole 14
Afterwards, the second spool 56 can be pushed open, and flowed out by the first, second through flow hole 12,52 from the 4th connecting hole 54；And if oil liquid from
When 4th connecting hole 54 flows into, the second spool 56 is oppressed due to second spring 59 and resists the second connecting hole 14, the pressure meeting of oil liquid
The second spool 56 is further set to press the second connecting hole 14, therefore, oil liquid will be unable to flow into the second connecting hole 14, that is, at this time only
Allow oil liquid to flow into from the 4th connecting hole 54, is flowed out from the second connecting hole 14.
Stretching or retracted mode by change cylinder 100, i.e., the flow direction that adjustable check valve oil liquid allows, or
Say the cut-off direction (direction for preventing liquid reverse flow) for changing check valve.
The check valve in adjustable cutoff direction of the invention passes through the state for changing the first spool and the second spool, so that this list
The direction for preventing oil liquid reverse flow, simple to operate, high reliablity can be easily controlled to valve.
It is pointed out that the technical concepts and features of above-mentioned preferred embodiment only to illustrate the invention, its object is to
Those skilled in the art can understand the contents of the present invention and implements accordingly, and protection of the invention can not be limited with this
Range.Any equivalent change or modification in accordance with the spirit of the invention should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of check valve in adjustable cutoff direction comprising first shell (10) interconnected and second shell (50), institute
It states first shell (10) to offer first through hole (15), the second shell (50) offers to be connected to the first through hole (15)
The 4th connecting hole (54), the check valve further include with the first through hole (15) sliding mating the first spool (16) and
Squeeze the first spring (19) of first spool (16), salable 4th connecting hole (54) of the first spool (16),
It is characterized by: the second shell (50) offers the second through-hole (55), the first shell (10) is offered and described
The second connecting hole (14) of two through-holes (55) connection, second connecting hole (14) mutually interconnect with the 4th connecting hole (54)
It is logical；
The check valve further include:
With the second spool (56) of second through-hole (55) sliding mating and the second bullet of extruding second spool (56)
Spring (59), salable second connecting hole (14) of the second spool (56)；
The connecting rod (101) being connected with first spool (16) and second spool (10)；
Driving device (100), the driving device (100) drive connecting rod (101) movement, and the driving device (100) is extremely
It less include two kinds of working conditions, in the first operative state, the connecting rod (101) can drive first spool (16) to be detached from institute
The 4th connecting hole (54) is stated, the second spool (56) seals second connecting hole under the action of second spring (59) at this time
(14)；In a second operative state, the connecting rod (101) can drive second spool (56) to be detached from second connecting hole
(14), the first spool (16) seals the 4th connecting hole (54) under the action of the first spring (19) at this time.
2. according to the check valve in adjustable cutoff direction described in claim 1, it is characterised in that: it further includes being connected to described first
The first pull rod (18) between spool (16) and the connecting rod (101), first pull rod (18) and the connecting rod (101) are slided
Mating.
3. according to the check valve in adjustable cutoff direction described in claim 2, it is characterised in that: first pull rod (18) also sets up
Have first baffle (20), the connecting rod (101) includes between the first baffle (20) and the first shell (10)
First rod piece (104).
4. according to the check valve in adjustable cutoff direction described in claim 1, it is characterised in that: it further includes being connected to described second
The second pull rod (58) between spool (56) and the connecting rod (101), second pull rod (58) and the connecting rod (101) are slided
Mating.
5. according to the check valve in adjustable cutoff direction described in claim 4, it is characterised in that: second pull rod (58) is provided with
Second baffle (60), the connecting rod (101) include between the second baffle (60) and the second shell (50)
Two rod pieces (108).
6. according to the check valve in adjustable cutoff direction described in claim 1, it is characterised in that: the first shell (10) offers
The first recirculation hole (75) being connected with the first through hole (15) and second connecting hole (14)；
The second shell (50) offers second to be connected with second through-hole (55) and the 4th connecting hole (54)
Recirculation hole (85), second recirculation hole (85) match with first recirculation hole (75).
7. according to the check valve in adjustable cutoff direction described in claim 1, it is characterised in that: the first shell (10) also sets up
Have the first retaining set (17), first spring (19) be connected to the first retaining set (17) and first spool (16) it
Between.
8. according to the check valve in adjustable cutoff direction described in claim 1, it is characterised in that: the second shell (50) also sets up
Have the second retaining set (57), the second spring (59) be connected to the second retaining set (17) and second spool (56) it
Between.
9. according to the check valve in adjustable cutoff direction described in claim 1, it is characterised in that: first spool (16) offers
First blind hole (70), first spring (19) are set in first blind hole (70).
10. according to the check valve in adjustable cutoff direction described in claim 1, it is characterised in that: second spool (56) opens up
Have the second blind hole (80), the second spring (59) is set in second blind hole (80).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060997.4A CN108980422B (en) | 2018-09-12 | 2018-09-12 | Check valve with adjustable stop direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060997.4A CN108980422B (en) | 2018-09-12 | 2018-09-12 | Check valve with adjustable stop direction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108980422A true CN108980422A (en) | 2018-12-11 |
| CN108980422B CN108980422B (en) | 2020-03-06 |
Family
ID=64545825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811060997.4A Active CN108980422B (en) | 2018-09-12 | 2018-09-12 | Check valve with adjustable stop direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108980422B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020051965A1 (en) * | 2018-09-12 | 2020-03-19 | 苏州丹顿机电有限公司 | Check valve with adjustable cutoff direction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004059926B3 (en) * | 2004-12-13 | 2006-08-10 | Weinhold, Karl, Dipl.-Ing. (FH) | Non-return valve with different flow directions has valve plates essentially fixed in position and internal cone element through which flow can pass arranged to be axially movable in housing as respective valve seat |
| CN102797875A (en) * | 2011-05-23 | 2012-11-28 | 广东美芝制冷设备有限公司 | Bidirectional one-way valve and control method thereof |
| CN105730505A (en) * | 2016-04-18 | 2016-07-06 | 金龙联合汽车工业（苏州）有限公司 | Hydraulic two-way check valve for steering system of new-energy bus |
| CN206830893U (en) * | 2017-04-13 | 2018-01-02 | 烟台职业学院 | A kind of multi-direction control inflation relief valve |
-
2018
- 2018-09-12 CN CN201811060997.4A patent/CN108980422B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004059926B3 (en) * | 2004-12-13 | 2006-08-10 | Weinhold, Karl, Dipl.-Ing. (FH) | Non-return valve with different flow directions has valve plates essentially fixed in position and internal cone element through which flow can pass arranged to be axially movable in housing as respective valve seat |
| CN102797875A (en) * | 2011-05-23 | 2012-11-28 | 广东美芝制冷设备有限公司 | Bidirectional one-way valve and control method thereof |
| CN105730505A (en) * | 2016-04-18 | 2016-07-06 | 金龙联合汽车工业（苏州）有限公司 | Hydraulic two-way check valve for steering system of new-energy bus |
| CN206830893U (en) * | 2017-04-13 | 2018-01-02 | 烟台职业学院 | A kind of multi-direction control inflation relief valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020051965A1 (en) * | 2018-09-12 | 2020-03-19 | 苏州丹顿机电有限公司 | Check valve with adjustable cutoff direction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108980422B (en) | 2020-03-06 |
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