CN109027337A - A kind of check valve manually adjusting cut-off direction - Google Patents
A kind of check valve manually adjusting cut-off direction Download PDFInfo
- Publication number
- CN109027337A CN109027337A CN201811060996.XA CN201811060996A CN109027337A CN 109027337 A CN109027337 A CN 109027337A CN 201811060996 A CN201811060996 A CN 201811060996A CN 109027337 A CN109027337 A CN 109027337A
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- Prior art keywords
- hole
- spool
- shell
- check valve
- rod
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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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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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
- 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
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
- F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0281—Housings in two parts which can be orientated in different positions
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
Abstract
Present invention discloses a kind of check valves for manually adjusting cut-off 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；The working condition of check valve can be changed in the drive rod of drive link movement, drive rod, and can control check valve prevents the direction of liquid reverse flow.
Description
Technical field
The present invention relates to check valve, in particular to a kind of check valve for manually adjusting cut-off direction.
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 list for manually adjusting cut-off direction
To valve, 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 list manually adjusting cut-off direction
To valve comprising first shell and second shell interconnected, the first shell offer first through hole, the second shell
Body offers the 4th connecting hole being connected to the first through hole, and the check valve further includes sliding to be coupled with the first through hole
The first spool and squeeze the first spring of first spool, salable 4th connecting hole of the first spool, institute
It states second shell and offers the second through-hole, the first shell offers the second connecting hole being connected to second through-hole, institute
It states the second connecting hole and the 4th connecting hole is interconnected；
The check valve further include:
With the second spool of second through-hole sliding mating and squeeze the second spring of second spool, described the
Salable second connecting hole of two spools；
The connecting rod being connected with first spool and second spool；
The drive rod being rotatably connected with the connecting rod, the drive rod drive the link linear movement；
The check valve includes at least two kinds of working conditions, in the first operative state, described in the first spool disengaging
4th connecting hole, the second spool seals second connecting hole under the action of second spring at this time；In a second operative state,
Second spool is detached from second connecting hole, and the first spool seals the described 4th under the action of first spring at this time
Connecting hole.
In addition, the present invention also proposes following attached technical scheme:
The first shell or the second shell surface are provided with flange, and the drive rod and the flange screw thread connect
It connects.
Described drive rod one end is provided with the mating part to match with Wrench.
The drive rod includes shaft shoulder portion, and described drive rod one end is also connected with fixing piece, the fixing piece and the axis
Shoulder is located at the 4th rod piece two sides.
The check valve for manually adjusting cut-off direction further includes being connected between first spool and the connecting rod
First pull rod, first pull rod and the rod slide are coupled.
First pull rod is additionally provided with first baffle, and the connecting rod includes being located at the first baffle and the first shell
The first rod piece between body.
The check valve for manually adjusting cut-off direction further includes being connected between second spool and the connecting rod
Second pull rod, second pull rod and the rod slide are coupled.
Second pull rod is provided with second baffle, and the connecting rod includes being located at the second baffle and the second shell
Between the second rod piece.
The first shell offers the first recirculation hole being connected with the first through hole and second connecting hole；Institute
It states second shell and offers the second recirculation hole being connected with second through-hole and the 4th connecting hole, second circulation
Hole is matched with first recirculation hole.
The first shell is additionally provided with the first retaining set, and first spring is connected to the first retaining set and described
Between first spool；The second shell is additionally provided with the second retaining set, and the second spring is connected to the second retaining set
Between second spool.
Compared with the prior art, the present invention has the advantages that the check valve for manually adjusting cut-off direction of the invention passes through
The state that drive rod changes the first spool and the second spool is rotated, this check valve, which is easily controlled, prevents oil liquid reversed
The direction of flowing, simple to operate, 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 of box spanner and drive rod mating.
Fig. 6 is to change the structural schematic diagram after fixing piece in Fig. 3.
Fig. 7 is the structural schematic diagram that check valve is in another off state in the present invention.
Fig. 8 is the sectional view in the portion B-B in Fig. 7.
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 for manually adjusting cut-off direction of preferred embodiment of the present invention comprising
First shell 10 and second shell 50 interconnected, first shell 10 and second shell 50 pass through flanged joint, first shell
10 and second shell 50 be respectively arranged with the first flange disk 11 and second flange disk 51 of matching, pass through bolt and nut (not shown)
First shell 10 and second shell 50 are tightened 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, drive rod 100 and connecting rod 101.
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, so that
First spool 16 can resist and seal 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, so that the
Two spools 56 can resist and seal the second connecting hole 14.
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.Above-mentioned first matches
It connects hole 102 and the 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,
The pilot hole 110 of perforation is also provided on first flange disk 11 and second flange disk 51, the sliding mating of the 5th rod piece 105 is being oriented to
In hole 110.
Third rod piece 105, the 4th rod piece 106 are connected in zigzag with the 5th rod piece 107, wherein third rod piece 105 and the
Five rod pieces 107 are parallel to each other, and the 4th rod piece 106 is perpendicular to third rod piece 105 and the 5th rod piece 107.
As shown in figure 4, the axis mounting hole 111 vertical with 51 surface of second flange disk is offered on the 4th rod piece 106,
The avoid holes 112 with 111 coaxial line of mounting hole are offered on second flange disk 51, are offered and are kept away on first flange disk 11
Allow the threaded hole 113 of 112 coaxial line of hole.Drive rod 100 includes mating part 114, threaded portion 115, the shaft shoulder portion 116 set gradually
With limiting section 117.Limiting section 117 is threaded through in mounting hole 111, and is connected with fixing piece 118 thereon, shaft shoulder portion 116 and fixation
The outer diameter of part 118 is greater than the diameter of mounting hole 111, to prevent drive rod 100 from falling off, and can exert a force to the 4th rod piece 106.Screw thread
Portion 115 pass through avoid holes 112 and with threaded hole 113 be coupled, the section of mating part 114 is preferably hexagonal, i.e., with outer-hexagonal spiral shell
The screw terminal of silk is similar, can match with Wrench, such as open-end wrench, ratchet spanner, box spanner；It is pulled by spanner
Drive rod 100 clockwise or counterclockwise, can make drive rod 100 move in a straight line, to drive the 4th rod piece 106 fortune
It is dynamic.Fig. 5 shows a kind of schematic diagram that external hexagonal socket wrench 119 is coupled with mating part 114.It is understood that mating part
114 also can be set into Hexagon hole, with matched with allen wrench or interior hexagonal socket wrench, moreover, threaded hole 113
It nor is it necessary that and be arranged on first flange disk 11, can be arranged in first shell 10 and second shell 50 and be similar to ring flange
Flange, and by threaded hole setting same effect is also able to achieve on flange.
Shaft shoulder portion 116 and fixing piece 118 are only arranged in 106 two sides of the 4th rod piece, without clamping the 4th rod piece 106, with side
Just rotation of drive rod 100.Fig. 4 shows the connection type of a kind of fixing piece 118 and drive rod 100, wherein 117 surface of limiting section
It is provided with screw thread, fixing piece 118 is threaded on limiting section 117, and preferably fixing piece 118 is nut.Fig. 6 shows another kind
The connection type of fixing piece 118 and drive rod 100 passes through 120 connection fixture 118 of bolt and limiting section being arranged radially
117。
Figures 1 and 2 show that a kind of schematic diagram of off state of this check valve, connecting rod 101, which is moved into, at this time keeps right
Position, first baffle 20 are not contacted with the first rod piece 104, and the first spool 16 resists the 4th connecting hole under spring force
54, second baffle 60 is fixed so that the second spool 56 is disengaged with the second connecting hole 14, at this point, oil liquid by the second rod piece 108
After the entrance of the 4th connecting hole 54, the first spool 16 can be pushed open, and pass through the first, second through flow hole 12,52 from the second connecting hole
14 outflows；And if oppressing the first spool 16 when oil liquid is flowed into from the second connecting hole 14 due to the first spring 19 and resisting the 4th company
Hole 54 is connect, 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 is allowed to flow into from the second connecting hole 14 at this time, flowed out from the 4th connecting hole 54.
Correspondingly, Fig. 7 and Fig. 8 show the schematic diagram of this check valve another kind off state, such state is changed to,
Rotation of drive rod 100 is only needed to be allowed to that connecting rod 101 is driven to be moved to the left.After connecting rod 101 is moved to the left, 104 band of the first rod piece
Dynamic first baffle 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 disengages, and the second spool 56 resists the second connecting hole 14 under spring force, at this point, oil liquid is connected from second
After hole 14 enters, the second spool 56 can be pushed open, and flow out from the 4th connecting hole 54 by the first, second through flow hole 12,52；And such as
When fruit oil liquid is flowed into from the 4th connecting hole 54, the second spool 56 is oppressed due to second spring 59 and resists the second connecting hole 14, oil liquid
Pressure so that the second spool 56 is pressed the second connecting hole 14, therefore, oil liquid will be unable to flow into the second connecting hole 14,
That is, only oil liquid is allowed to flow into from the 4th connecting hole 54 at this time, flowed out from the second connecting hole 14.
The flow direction for only needing the i.e. adjustable check valve oil liquid of rotation of drive rod 100 to allow, changes check valve in other words
Cut-off direction (direction for preventing liquid reverse flow), position mark can be done on connecting rod 101 or check-valve body in practice
Note, so that connecting rod 101 can reach specified position, it is more convenient reliable.
The check valve for manually adjusting cut-off direction of the invention changes the first spool and the second spool by rotation drive rod
State, enable this check valve easily to control the direction for preventing oil liquid reverse flow, simple to operate, reliability
It is high.
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 for manually adjusting cut-off direction comprising first shell (10) interconnected and second shell
(50), the first shell (10) offers first through hole (15), and the second shell (50) offers and the first through hole
(15) the 4th connecting hole (54) being connected to, the check valve further include the first spool with the first through hole (15) sliding mating
(16) and the first spring (19) of extruding first spool (16), first spool (16) the salable described 4th connect
Hole (54), it is characterised in that: the second shell (50) offers the second through-hole (55), the first shell (10) offer with
The second connecting hole (14) of second through-hole (55) connection, second connecting hole (14) and the 4th connecting hole (54) phase
It is intercommunicated；
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)；
The drive rod (100) being rotatably connected with the connecting rod (101), the drive rod (100) drive the connecting rod (101) straight
Line movement；
The check valve includes at least two kinds of working conditions, in the first operative state, described in the first spool (16) disengaging
4th connecting hole (54), the second spool (56) seals second connecting hole (14) under the action of second spring (59) at this time；
In a second operative state, second spool (56) is detached from second connecting hole (14), and the first spool (16) is in institute at this time
It states and seals the 4th connecting hole (54) under the action of the first spring (19).
2. according to manually adjusted described in claim 1 cut-off direction check valve, it is characterised in that: the first shell (10) or
Second shell (20) surface is provided with flange, and the drive rod (100) is threadedly coupled with the flange.
3. according to the check valve for manually adjusting cut-off direction described in claim 1, it is characterised in that: the drive rod (100) one
End is provided with the mating part (114) to match with Wrench.
4. according to the check valve for manually adjusting cut-off direction described in claim 1, it is characterised in that: drive rod (100) packet
It includes shaft shoulder portion (116), described drive rod (100) one end is also connected with fixing piece (118), the fixing piece (118) and the axis
Shoulder (116) is located at the 4th rod piece (106) two sides.
5. according to the check valve for manually adjusting cut-off direction described in claim 1, it is characterised in that: its further include be connected to it is described
The first pull rod (18) between first spool (16) and the connecting rod (101), first pull rod (18) and the connecting rod (101)
Sliding mating.
6. according to the check valve for manually adjusting cut-off direction described in claim 5, it is characterised in that: first pull rod (18) is also
Be provided with first baffle (20), the connecting rod (101) include positioned at the first baffle (20) and the first shell (10) it
Between the first rod piece (104).
7. according to the check valve for manually adjusting cut-off direction described in claim 1, it is characterised in that: its further include be connected to it is described
The second pull rod (58) between second spool (56) and the connecting rod (101), second pull rod (58) and the connecting rod (101)
Sliding mating.
8. according to the check valve for manually adjusting cut-off direction described in claim 7, it is characterised in that: second pull rod (58) sets
It is equipped with second baffle (60), the connecting rod (101) includes between the second baffle (60) and the second shell (50)
The second rod piece (108).
9. according to the check valve for manually adjusting cut-off direction described in claim 1, it is characterised in that: the first shell (10) is opened
Equipped with the first recirculation hole (75) being connected with the first through hole (15) and second connecting hole (14)；The second shell
(50) the second recirculation hole (85) being connected with second through-hole (55) and the 4th connecting hole (54) is offered, described
Two recirculation holes (85) are matched with first recirculation hole (75).
10. according to the check valve for manually adjusting cut-off direction described in claim 1, it is characterised in that: the first shell (10)
It is additionally provided with the first retaining set (17), first spring (19) is connected to the first retaining set (17) and first spool
(16) between；The second shell (50) is additionally provided with the second retaining set (57), and the second spring (59) is connected to described
Between two retaining sets (17) and second spool (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060996.XA CN109027337B (en) | 2018-09-12 | 2018-09-12 | Check valve capable of manually adjusting stop direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811060996.XA CN109027337B (en) | 2018-09-12 | 2018-09-12 | Check valve capable of manually adjusting stop direction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109027337A true CN109027337A (en) | 2018-12-18 |
| CN109027337B CN109027337B (en) | 2020-02-14 |
Family
ID=64621623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811060996.XA Active CN109027337B (en) | 2018-09-12 | 2018-09-12 | Check valve capable of manually adjusting stop direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109027337B (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 |
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| CN102518862A (en) * | 2011-12-28 | 2012-06-27 | 江南工业集团有限公司 | Double two-way stop air-operated cylinder valve |
| CN203757073U (en) * | 2014-04-17 | 2014-08-06 | 宁波市镇海华力液压机电有限公司 | Hydraulic control one-way valve |
| CN205298651U (en) * | 2015-12-28 | 2016-06-08 | 重庆耐德节能装备有限公司 | Pressure fluid self -commutation device |
| CN205937281U (en) * | 2016-08-20 | 2017-02-08 | 黎明液压有限公司 | Spin control formula hydraulic directional control valve |
| CN107327598A (en) * | 2017-07-01 | 2017-11-07 | 宁波华成阀门有限公司 | A kind of compound double check valve (DCV) of copper modeling and its manufacture method |
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 |
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