CN107654702A - A kind of check valve - Google Patents
A kind of check valve Download PDFInfo
- Publication number
- CN107654702A CN107654702A CN201710978734.0A CN201710978734A CN107654702A CN 107654702 A CN107654702 A CN 107654702A CN 201710978734 A CN201710978734 A CN 201710978734A CN 107654702 A CN107654702 A CN 107654702A
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- Prior art keywords
- valve
- valve body
- entrance
- check valve
- screw rod
- Prior art date
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- Granted
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- 239000012530 fluid Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 16
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K17/0413—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 closure plates
-
- 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
- F16K17/06—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 special arrangements for adjusting the opening pressure
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Check Valves (AREA)
Abstract
The invention belongs to valve technology field, discloses a kind of check valve.It includes：Valve body, non-return component and regulator, the entrance flowed into for fluid and the outlet for fluid outflow are provided with valve body；Non-return component is arranged on entrance and the opening and closing for controlling check valve, and non-return component includes valve element, spring and the spring base set gradually from entrance to valve inner；Regulator is arranged between entrance and exit, including the adjusting screw rod that coordinates of one end and spring base screw thread and is fixed on valve inner and is passed valve body with the guide rail of spring base cooperation, the other end of adjusting screw rod, and the guide direction of guide rail is identical with the length direction of spring.Check valve of the present invention is angie type structure, and pressure, which is adjusted, uses external, and on-line control is more convenient and accurate.
Description
Technical field
The present invention relates to valve technology field, more particularly to a kind of angie type check valve.
Background technology
The structural shape of check valve is generally through-type at present.As shown in figure 1, through-type check valve mainly by the ＇ of valve body 1,
The ＇ of valve seat 2, the ＇ of valve element 3, the ＇ of spring 4 and the ＇ of regulating bolt 5 compositions, the ＇ of valve body 1 include straight tube, and the ＇ of valve seat 2 is arranged on one end of straight tube, valve
The ＇ of core 3 is resisted against on the ＇ of valve seat 2, and in sides of the ＇ of valve element 3 away from the ＇ of valve seat 2, the axis direction along straight tube sets gradually the ＇ of spring 4
With the ＇ of regulating bolt 5, check valve, by the ＇ of regulating bolt 5 in Rotary straight pipe, makes the ＇ of regulating bolt 5 along axle in pressure regulation
Line direction is moved, and the ＇ of spring 4 is stretched or compressed therewith, and the Opening pressure of check valve reduces or increase.When Fluid pressure is more than
During the Opening pressure of check valve, the ＇ of fluid forces valve element 3 moves to the direction away from the ＇ of valve seat 2, and fluid flows into straight tube, when fluid pressure
When power is less than the Opening pressure of check valve, fluid can not promote the ＇ of valve element 3, and fluid can not pass through the ＇ of valve body 1.Reverse fluid flow
When, fluid will be such that the ＇ of valve element 3 is pressed on the ＇ of valve seat 2, and fluid can not pass through.
The defects of above-mentioned through-type check valve is present is Opening pressure on-line control difficulty, it is necessary to pull down list from pipeline
To valve, the position of the regulating bolt of check valve valve inner is then adjusted, check valve is reinstalled into pipeline detection Opening pressure afterwards,
Judge whether the Opening pressure of check valve reaches required pressure.If Opening pressure regulation is inaccurate, need to regulating bolt
Repeatedly regulation, that is, need to carry out being dismounted for multiple times to check valve, waste time and energy, difficulty is brought to execute-in-place.
Secondly, using O-ring seal during through-type check valve sealing, the sealing ring of this structure is in Fluid pressure mistake
Greatly, export it is pressure-resistant not enough, pressure difference it is high when, be easily separated from seal groove, and cause seal groove not have the effect of sealing, it is easy to lead
Cause fluid to leak into the end in valve outlet direction, trouble is caused to the course of work.
Therefore, a kind of Novel check valve is needed badly to solve the above problems.
The content of the invention
It is an object of the invention to provide a kind of check valve, is stranded with solving the Opening pressure on-line control of existing check valve
The problem of hardly possible, regulation flow process complexity.
To use following technical scheme up to this purpose, the present invention：
A kind of check valve, it includes：
Valve body, it is provided with the entrance flowed into for fluid and the outlet for fluid outflow；
Non-return component, it is arranged on the entrance and the opening and closing for controlling the check valve, the non-return component
Including the valve element, spring and spring base set gradually from the entrance to the valve inner；
Regulator, it is arranged between the entrance and the outlet, including one end and spring base screw thread cooperation
Adjusting screw rod and the valve inner and the guide rail coordinated with the spring base are fixed on, the other end of the adjusting screw rod passes
The valve body, the guide direction of the guide rail are identical with the length direction of the spring.
Preferably, the regulator also includes the thrust bearing being arranged on the valve body, the thrust bearing is worn
On the adjusting screw rod.
Preferably, the regulator also includes locking nut, described valve body one end spiral shell is passed with the adjusting screw rod
Line coordinates.
Preferably, one end that the adjusting screw rod stretches out the valve body is cuboid.
Preferably, also including safety guard, the safety guard is connected to form accommodating cavity with valve body, for housing the regulation
Screw rod passes the part of the valve body.
Preferably, the valve element includes valve core, sealing gasket and valve core case, the sealing gasket is arranged at the valve core
Between the valve core case, be provided with position-limited needle on the valve core, the valve core case is provided with spacing hole, the valve core with
The valve core case coordinates spacing, the valve element and the sealing structure cooperation for forming the entrance by position-limited needle with spacing hole.
Preferably, the valve body includes orthogonal pipe straight branch and side leads to branch pipe, the side leads to branch pipe by described
Pipe straight branch connects, and one end of the pipe straight branch is the entrance, and the side leads to end of the branch pipe away from the pipe straight branch
For the outlet.
Preferably, also including valve seat and bonnet, the valve seat is arranged in the valve body and is located at described entrance one end,
The bonnet is arranged at the other end of the pipe straight branch and is connected with the valve seal.
Preferably, the non-return component is arranged in the pipe straight branch of the valve body, the institute of the non-return component
State valve element and be resisted against the valve seat.
Preferably, the spring base of the regulator, the guide rail and the thrust bearing are arranged at the valve
In the pipe straight branch of body, the regulator is set at the bonnet.
Beneficial effects of the present invention：Check valve of the present invention is angie type structure, real by using external pressure-regulating device
Now regulation process can be made more convenient and accurate with the purpose of on-line control when unidirectional valve regulation Opening pressure；
Using thrust bearing, reduce the peripheral force when rotating adjusting screw rod, make regulation lighter；
O-ring seals are replaced using sealing gasket, improve the reliability of sealing, when check valve be in pressure difference it is high when also will not
Generation fluid Seepage.
Brief description of the drawings
Fig. 1 is the structural representation for the through-type check valve that prior art provides；
Fig. 2 is the explosive view for the check valve that embodiment of the present invention provides；
Fig. 3 is the sectional view for the check valve that embodiment of the present invention provides.
In figure：
1 ＇, valve body；2 ＇, valve seat；3 ＇, valve element；4 ＇, spring；5 ＇, adjusting screw rod；
1st, valve body；11st, entrance；12nd, export；
2nd, valve seat；
3rd, non-return component；31st, valve element；311st, valve core；312nd, sealing gasket；313rd, valve core case；32nd, spring；33rd, spring
Seat；
4th, regulator；41st, guide rail；42nd, adjusting screw rod；43rd, thrust bearing；44th, locking nut；
5th, bonnet；6th, safety guard.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
As shown in Fig. 2 the check valve that present embodiment proposes, including valve body 1, non-return component 3 and regulator 4；Valve body 1
Lead to branch pipe including orthogonal pipe straight branch and side, side leads to branch pipe and connected by pipe straight branch, and one end of pipe straight branch is as stream
The entrance 11 that body flows into, side lead to the outlet 12 that end of the branch pipe away from pipe straight branch is flowed out as fluid.Non-return component 3 is arranged on
In the pipe straight branch of valve body 1 and at entrance 11, including from entrance 11 to valve body 1 inside the valve element 31, the spring that set gradually
32 and spring base 33, for controlling the opening and closing of check valve, while it can only enter from fluid that can control the flow direction of fluid
Mouth 11 flows into, and the outflow of outlet 12, fluid is unable to opposite direction and passes through check valve；Regulator 4 be arranged at entrance 11 and outlet 12 it
Between, its structure include the adjusting screw rod 42 that one end and the screw thread of spring base 33 coordinate and be fixed on inside valve body 1 and with spring base 33
The guide rail 41 of cooperation, the other end of adjusting screw rod 42 pass valve body 1, the guide direction of guide rail 41 and the length direction phase of spring 32
Together.By rotating adjusting screw rod 42, spring base 33 with matching will leading downward along adjusting screw rod 42 in guide rail 41
Axis direction move along a straight line, if spring base 33 towards the direction of entrance 11 move, its can compression spring 32, make check valve
Opening pressure become big, conversely, then reducing Opening pressure value.
In the pipe straight branch of valve body 1, the end relative with fluid intake 11 is provided with bonnet 5, bonnet 5 and valve body 1 it
Between be tightly connected.
Thrust bearing 43 is additionally provided with valve body 1, thrust bearing 43 is arranged on adjusting screw rod 42, and thrust bearing 43 abuts
Bonnet 5 is set, and the advantage is that, when turning adjusting screw rod 42, thrust bearing 43 can reduce along the circumferential direction of adjusting screw rod 42
Power, rolling friction is replaced sliding friction using thrust bearing 43, make regulation more easily it is laborsaving.
In the outside of valve body 1 and act against the end of bonnet 5 and be provided with locking nut 44, locking nut 44 and adjusting screw rod 42
It is that screw thread coordinates to pass the one end of valve body 1, it is necessary to further will lock when user regulates required Opening pressure by adjusting screw rod 42
Tight nut 44 acts against the end of bonnet 5, makes the remains stationary state under the influence of not by external force of adjusting screw rod 42, to prevent adjusting
Section screw rod 42 makes circumferential movement and has influence on the position of spring base 33 and then Opening pressure value that change is set.
Pressure regulation is carried out to check valve in order to facilitate user, one end that adjusting screw rod 42 stretches out valve body 1 is set to cuboid,
It is easy to user that adjusting screw rod 42 is adjusted by a kind of instrument of spanner.When user terminates in regulation and tightens locking screw
Mother 44 after, it is necessary on valve body 1 close to bonnet 5 an end shield on safety guard 6, avoid locking nut 44 from being disturbed by external force.
Valve seat 2 is arranged at the fluid intake 11 of check valve, and non-return component 3 is resisted against on valve seat 2, wherein non-return component 3
In valve element 31 also include valve core 311, sealing gasket 312 and valve core case 313, wherein, valve core 311 is located in valve seat 2, valve seat
2 edge is brought into close contact with sealing gasket 312, and valve core 311 is inserted into valve core case 313 by position-limited needle through sealing gasket 312
In spacing hole, the assembling of whole valve element 31 is realized, at fluid intake 11, the pressure value of fluid needs the unlatching for reaching check valve
During pressure value, fluid top valve opening core 31, the flowing of fluid is realized.Before this, valve element 31 with the valve seat 2 at entrance 11 by adopting
Realized and sealed with oil resistant rubber sealing gasket 312.
Spring base 33, guide rail 41 and thrust bearing 43 in regulator 4 are located in the pipe straight branch of valve body 1, and close
At bonnet 5, because check valve is using external regulation pressure, so regulator 4 is placed at bonnet 5, facilitate check valve
Regulation pressure in real time.
Fig. 3 is check valve configuration schematic diagram, and check valve is when being adjusted, first by safety guard 6 from valve body 1
On pull down, then locking nut 44 is unscrewed to there is certain gap between bonnet 5 with spanner, then spiral shell is adjusted with spanner clamping
One end of the cuboid of bar 42, rotated along the circumference of adjusting screw rod 42, rotate adjusting screw rod, while spring base 33 is in valve
Leading for guide rail 41 inside body 1 moves down, if user needs to tune up Opening pressure, by spring base 33 towards entrance 11
Direction movement, conversely, then towards the one end of bonnet 5 move.When setting the Opening pressure value of needs, with spanner by locking nut
44 locking to adjusting screw rods 42 are not rotated further by, then safety guard 6 is arranged on valve body 1, then complete Primary regulation process.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating example of the present invention, and it is pair to be not
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (10)
- A kind of 1. check valve, it is characterised in that including：Valve body (1), it is provided with the entrance (11) flowed into for fluid and the outlet (12) for fluid outflow；Non-return component (3), the entrance (11) place and the opening and closing for controlling the check valve are arranged on, it is described non-return Component (3) includes valve element (31), spring (32) and the spring base set gradually inside from the entrance (11) to the valve body (1) (33)；Regulator (4), it is arranged between the entrance (11) and the outlet (12), including one end and the spring base (33) The adjusting screw rod (42) and be fixed on the guide rail that the valve body (1) is internal and coordinates with the spring base (33) that screw thread coordinates (41), the other end of the adjusting screw rod (42) passes the valve body (1), guide direction and the spring of the guide rail (41) (32) length direction is identical.
- 2. check valve according to claim 1, it is characterised in that the regulator (4) also includes being arranged at the valve Thrust bearing (43) on body (1), the thrust bearing (43) are arranged on the adjusting screw rod (42).
- 3. check valve according to claim 2, it is characterised in that the regulator (4) also includes locking nut (44), The locking nut (44) passes the cooperation of the valve body (1) threaded one end with the adjusting screw rod (42).
- 4. check valve according to claim 1, it is characterised in that the adjusting screw rod (42) stretches out the valve body (1) One end is cuboid.
- 5. check valve according to claim 1, it is characterised in that also including safety guard (6), the safety guard (6) and valve Body (1) connection forms accommodating cavity, and the safety guard (6) is used to house the portion that the adjusting screw rod (42) passes the valve body (1) Point.
- 6. check valve according to claim 1, it is characterised in that the valve element (31) includes valve core (311), sealing gasket (312) it is arranged at valve core case (313), the sealing gasket (312) between the valve core (311) and the valve core case (313), Position-limited needle is provided with the valve core (311), the valve core case (313) is provided with spacing hole, the valve core (311) and institute State valve core case (313) and coordinate spacing, the valve element (31) and the structure for forming the entrance (11) with spacing hole by position-limited needle Sealing coordinates.
- 7. according to any described check valves of claim 1-6, it is characterised in that the valve body (1) includes orthogonal straight Logical branch pipe and side lead to branch pipe, and the side leads to branch pipe and connected by the pipe straight branch, and one end of the pipe straight branch is the entrance (11), the side leads to end of the branch pipe away from the pipe straight branch for the outlet (12).
- 8. check valve according to claim 7, it is characterised in that also including valve seat (2) and bonnet (5), the valve seat (2) It is arranged in the valve body (1) and is located at the entrance (11) one end, the bonnet (5) is arranged at the another of the pipe straight branch Hold and be tightly connected with the valve body (1).
- 9. check valve according to claim 8, it is characterised in that the non-return component (3) is arranged at the valve body (1) In the pipe straight branch, the valve element (31) of the non-return component (3) is resisted against the valve seat (2).
- 10. check valve according to claim 8, it is characterised in that the spring base (33) of the regulator (4), The guide rail (41) and the thrust bearing (43) are arranged in the pipe straight branch of the valve body (1), the regulator (4) set close to the bonnet (5) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710978734.0A CN107654702B (en) | 2017-10-19 | 2017-10-19 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710978734.0A CN107654702B (en) | 2017-10-19 | 2017-10-19 | One-way valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107654702A true CN107654702A (en) | 2018-02-02 |
| CN107654702B CN107654702B (en) | 2024-05-17 |
Family
ID=61118981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710978734.0A Active CN107654702B (en) | 2017-10-19 | 2017-10-19 | One-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107654702B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468839A (en) * | 2018-05-24 | 2018-08-31 | 岳波 | A kind of filter check valve for air-transport system |
| CN109915631A (en) * | 2019-02-25 | 2019-06-21 | 浙江工业大学 | A kind of novel button classification pressure-adjustable check valve |
| CN111425634A (en) * | 2020-03-26 | 2020-07-17 | 宁波市鄞州亚大汽车管件有限公司 | Gas one-way valve |
| CN113915122A (en) * | 2021-10-26 | 2022-01-11 | 无锡市东液机械制造有限公司 | Anti-trapping oil gear pump |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4760866A (en) * | 1978-06-28 | 1988-08-02 | H. Adler Associates, Inc. | Combination stop and pressure reducing valve and stop cock version |
| US5129419A (en) * | 1990-11-13 | 1992-07-14 | Pneudraulics, Inc. | Pressure control valve |
| KR20080068349A (en) * | 2007-01-19 | 2008-07-23 | 서호진 | Pressure relief valve |
| DE102010012651A1 (en) * | 2010-03-25 | 2010-09-16 | Hydraulik-Ring Gmbh | Exhaust gas after-treatment device for diesel engine of heavy commercial vehicle, has adjusting screw for adjusting spring force, where screw is screwed into internal thread made of thermoplastic and is material-fitly connected with thread |
| CN202176781U (en) * | 2011-08-05 | 2012-03-28 | 湖州师范学院 | Pressure regulating valve |
| CN102678987A (en) * | 2012-05-04 | 2012-09-19 | 华中科技大学 | Seawater hydraulic overflow valve |
| CN202493678U (en) * | 2012-01-06 | 2012-10-17 | 浙江盾安禾田金属有限公司 | Stop valve |
| CN203627959U (en) * | 2013-12-31 | 2014-06-04 | 德州宇力液压有限公司 | Ultrahigh pressure relief valve |
| CN104781545A (en) * | 2012-09-17 | 2015-07-15 | 罗伯特·博世有限公司 | Pressure control valve for a fuel injection system |
| CN204805636U (en) * | 2015-07-15 | 2015-11-25 | 浙江三花制冷集团有限公司 | One -way valve |
| CN206054240U (en) * | 2016-06-23 | 2017-03-29 | 奉化意格特机械制造有限公司 | Minimum pressure valve |
| CN206290731U (en) * | 2016-12-13 | 2017-06-30 | 叶福西 | A kind of stop valve |
| CN207796182U (en) * | 2017-10-19 | 2018-08-31 | 上海诺科泵业有限公司 | A kind of check valve |
-
2017
- 2017-10-19 CN CN201710978734.0A patent/CN107654702B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4760866A (en) * | 1978-06-28 | 1988-08-02 | H. Adler Associates, Inc. | Combination stop and pressure reducing valve and stop cock version |
| US5129419A (en) * | 1990-11-13 | 1992-07-14 | Pneudraulics, Inc. | Pressure control valve |
| KR20080068349A (en) * | 2007-01-19 | 2008-07-23 | 서호진 | Pressure relief valve |
| DE102010012651A1 (en) * | 2010-03-25 | 2010-09-16 | Hydraulik-Ring Gmbh | Exhaust gas after-treatment device for diesel engine of heavy commercial vehicle, has adjusting screw for adjusting spring force, where screw is screwed into internal thread made of thermoplastic and is material-fitly connected with thread |
| CN202176781U (en) * | 2011-08-05 | 2012-03-28 | 湖州师范学院 | Pressure regulating valve |
| CN202493678U (en) * | 2012-01-06 | 2012-10-17 | 浙江盾安禾田金属有限公司 | Stop valve |
| CN102678987A (en) * | 2012-05-04 | 2012-09-19 | 华中科技大学 | Seawater hydraulic overflow valve |
| CN104781545A (en) * | 2012-09-17 | 2015-07-15 | 罗伯特·博世有限公司 | Pressure control valve for a fuel injection system |
| CN203627959U (en) * | 2013-12-31 | 2014-06-04 | 德州宇力液压有限公司 | Ultrahigh pressure relief valve |
| CN204805636U (en) * | 2015-07-15 | 2015-11-25 | 浙江三花制冷集团有限公司 | One -way valve |
| CN206054240U (en) * | 2016-06-23 | 2017-03-29 | 奉化意格特机械制造有限公司 | Minimum pressure valve |
| CN206290731U (en) * | 2016-12-13 | 2017-06-30 | 叶福西 | A kind of stop valve |
| CN207796182U (en) * | 2017-10-19 | 2018-08-31 | 上海诺科泵业有限公司 | A kind of check valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468839A (en) * | 2018-05-24 | 2018-08-31 | 岳波 | A kind of filter check valve for air-transport system |
| CN109915631A (en) * | 2019-02-25 | 2019-06-21 | 浙江工业大学 | A kind of novel button classification pressure-adjustable check valve |
| CN111425634A (en) * | 2020-03-26 | 2020-07-17 | 宁波市鄞州亚大汽车管件有限公司 | Gas one-way valve |
| CN113915122A (en) * | 2021-10-26 | 2022-01-11 | 无锡市东液机械制造有限公司 | Anti-trapping oil gear pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107654702B (en) | 2024-05-17 |
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