CN106015675B - A kind of one-way pressure-regulating overflow valve with thrust bearing - Google Patents
A kind of one-way pressure-regulating overflow valve with thrust bearing Download PDFInfo
- Publication number
- CN106015675B CN106015675B CN201610531394.2A CN201610531394A CN106015675B CN 106015675 B CN106015675 B CN 106015675B CN 201610531394 A CN201610531394 A CN 201610531394A CN 106015675 B CN106015675 B CN 106015675B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- spring
- thrust bearing
- pressure
- 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.)
- Active
Links
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
- F16K17/06—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
- 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
- F16K1/38—Valve members of conical shape
-
- 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
-
- 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
- F16K17/044—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 more than one spring
-
- 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
- F16K17/048—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 combined with other safety valves, or with pressure control devices
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
A kind of one-way pressure-regulating overflow valve with thrust bearing.Its lower valve body, relief valve seat, overflow valve spring, valve rod, lower flange, elbow, spacer, one-way valve seat, nonreturn valve core, one-way valve spring, pressure ring, bushing, guide sleeve, lower spring cup, disc spring, upper spring seat, thrust bearing, locknut, adjusting bolt, gland, upper valve body, locking nut, round nut, y-type seal ring.The one-way pressure-regulating overflow valve of the present invention uses liquid collecting type overflow manner, improves work on the spot environment, while also save resource.The maintenance easy to process of independent relief valve seat and one-way valve seat is replaced；Use the flow that rigidity is big, the rigid disc spring of change is beneficial to different pressures size in accuracy-control system, stroke is short, load is big, axially occupies little space, and is applied in combination conveniently, it is used to overcome pressure medium as mechanical load, it is wide to be applicable in load range, is more suitable for the structure of high pressure, valve opens and closes timely, spool is not likely to produce frequency modulation and flutter phenomenon, and disassembling, assembling and replacing is simple.
Description
Technical field
The invention belongs to hydraulic machinery technical field, more particularly to a kind of one-way pressure-regulating overflow valve with thrust bearing.
Technical background
High pressure reciprocating pump is also known as plunger pump, is an important device of hydraulic system, check valve, pressure adjustment relief valve are then
It is indispensable protection element in high pressure reciprocating plunger pumping system.Most currently used check valve, pressure adjustment relief valve are point
Body formula manually regulating valve.Wherein pressure adjustment relief valve is used for regulating system pressure, makes its flow constant, when system pressure increases
And when exceeding pressure value set in advance, overflow valve is opened, and excess traffic overflow, system pressure is not further added by, so as to protect
It is constant to demonstrate,prove outlet of plunger pump pressure.During system worked well, which closes.Check valve can ensure system mesohigh medium not
Flow back, an one direction is flowed.But the shortcomings that above-mentioned check valve, pressure adjustment relief valve is due to that it is split structure,
Therefore the leak source that leaks is added, and the structure design of pressure adjustment relief valve is unreasonable, therefore degree of regulation is not high, especially high pressure
Overflow valve, preset pressure value is high, needs to provide big moment of torsion when adjusting manually, very arduously, and operates with inconvenience.
The content of the invention
To solve the above-mentioned problems, it is an object of the invention to provide one kind is easy to operate, degree of regulation is high, labour-saving band
The one-way pressure-regulating overflow valve of thrust bearing.
In order to achieve the above object, the one-way pressure-regulating overflow valve provided by the invention with thrust bearing includes lower valve body, overflows
Flow valve seat, overflow valve spring, valve rod, lower flange, elbow, spacer, one-way valve seat, nonreturn valve core, one-way valve spring, pressure ring,
Bushing, guide sleeve, lower spring cup, disc spring, upper spring seat, thrust bearing, locknut, adjusting bolt, gland, upper valve body, locking screw
Mother, round nut, y-type seal ring；Wherein lower valve body is vertically disposed square tube type structure, is penetrated through respectively in middle part and lower side
The leakage fluid dram and inlet being connected formed with one with centre bore；Elbow utilizes lower flange and spiral shell as overflow port the upper end
Column, nut are fixed at the lower port of lower valve body；Relief valve seat is ring-type, is arranged in the centre bore of lower valve body and is located at inlet
The position of downside；One-way valve seat is ring-type, is arranged on the position on the upside of inlet in the centre bore of lower valve body；Spacer is set
In the upper end of one-way valve seat, and on periphery formed with the corresponding flowing hole of leakage fluid dram in lower valve body；Bushing is arranged on
The upper end of spacer；Upper valve body is vertically disposed square tube type structure, and installed in the upper end of lower valve body, lower port edge is downwardly projected
Formed with a bulge loop being inserted into lower valve body upper port；Gland is fixed on the upper end of upper valve body using stud, nut,
Formed with through hole at center；Lower spring cup, disc spring, upper spring seat and thrust bearing are sequentially arranged in upper valve body from bottom to up
In heart hole；The lower part of adjusting bolt sequentially passes through the through hole of gland and the centre bore of thrust bearing, and top from the top down
Outside is provided with the locknut for limiting preload pressure；The top of valve rod is located in the centre bore of one-way valve seat, spacer and bushing,
Lower end is located in lower valve body and the corresponding position of inlet, and lower end diameter is more than middle and upper part diameter；Guiding is set in lining
The inside of set；Valve rod upper end is fixed after the centre bore of guide sleeve by round nut and locking nut, and lower spring cup
Lower end is fixed on the upper end of locking nut, therefore guide sleeve, valve rod, round nut, locking nut and lower spring cup one can be same as above
Lower movement；Nonreturn valve core is ring-type, is located in the space in the middle part of valve rod between spacer, upper end, which is provided with, is sleeved on stem exterior
Y-type seal ring, and y-type seal ring is fixed on nonreturn valve core using pressure ring；One-way valve spring be sleeved on guide sleeve and pressure ring it
Between valve rod upper external；Overflow valve spring pocket is outside the valve rod lower end between one-way valve seat and relief valve seat.
The lower circumferential face of the valve rod is in inversed taper platform shape, while the upper port of relief valve seat is also in inversed taper platform shape, and two
Contacted between person for line, therefore good seal performance, reliability are high.
The lower circumferential face of the nonreturn valve core is in inversed taper platform shape, while the upper port of one-way valve seat is also in inversed taper platform
Shape, contacts for line between the two, therefore good seal performance, and reliability is high.
The lower end of the guide sleeve is additionally provided with a y-type seal ring, and y-type seal ring lower end is equipped with a gasket, with
Improve sealing effect.
The center-hole diameter of the lower spring cup is equal to locking nut upper end outside diameter, the outside diameter of guide sleeve and bushing it is interior
Footpath is identical, with ensure stem movement track to neutrality.
Sealing ring is equipped between the bushing and lower valve body, one-way valve seat and lower valve body, relief valve seat and lower valve body.
One-way pressure-regulating overflow valve provided by the invention with thrust bearing uses liquid collecting type overflow manner, the i.e. overflow of liquid
It is to make into concentrate orientation off-load by conventional any discharge, improves the working environment at scene, while also save resource.It is independent
Relief valve seat and one-way valve seat it is easy to process maintenance replace；Using rigidity it is big, become rigid disc spring and be beneficial to accuracy-control system
The flow of middle different pressures size, stroke is short, and load is big, axially occupies little space, and is applied in combination conveniently, core is not likely to produce frequency modulation
It is simple with flutter phenomenon, disassembling, assembling and replacing；Thrust bearing is used to reduce pressure adjusting moment of torsion, pressure is adjusted convenient laborsaving and precision
Height, it is easy to operate；And leak few, compact-sized, service life length.
Brief description of the drawings
Fig. 1 is the one-way pressure-regulating overflow valve external structure schematic diagram provided by the invention with thrust bearing.
Fig. 2 is the one-way pressure-regulating overflow valve vertical structure sectional view provided by the invention with thrust bearing.
Embodiment
The one-way pressure-regulating overflow valve provided by the invention with thrust bearing is carried out with specific embodiment below in conjunction with the accompanying drawings
Describe in detail.
As shown in Fig. 1-Fig. 2, the one-way pressure-regulating overflow valve provided by the invention with thrust bearing includes lower valve body 1, overflow
Valve seat 2, overflow valve spring 3, valve rod 4, lower flange 5, elbow 6, spacer 7, one-way valve seat 8, nonreturn valve core 9, one-way valve spring
10th, pressure ring 11, bushing 12, guide sleeve 13, lower spring cup 14, disc spring 15, upper spring seat 16, thrust bearing 17, locknut 18, adjusting
Bolt 19, gland 20, upper valve body 21, locking nut 22, round nut 23, y-type seal ring 24；Wherein lower valve body 1 is to be vertically arranged
Square tube type structure, be formed through a leakage fluid dram being connected with centre bore 25 and feed liquor respectively on middle part and lower side
Mouth 26；Elbow 6 is fixed at the lower port of lower valve body 1 as overflow port the upper end using lower flange 5 and stud, nut；Overflow
Stream valve seat 2 is ring-type, is arranged in the centre bore of lower valve body 1 positioned at the position of the downside of inlet 26；One-way valve seat 8 is ring-type,
It is arranged in the centre bore of lower valve body 1 positioned at the position of the upside of inlet 26；Spacer 7 is arranged on the upper end of one-way valve seat 8, and
On periphery formed with the corresponding flowing hole 27 of leakage fluid dram 25 in lower valve body 1；Bushing 12 is arranged on the upper end of spacer 7；On
Valve body 21 is vertically disposed square tube type structure, and installed in the upper end of lower valve body 1, lower port edge is downwardly projected formed with one
The bulge loop being inserted into 1 upper port of lower valve body；Gland 20 is fixed on the upper end of upper valve body 21, center using stud, nut
Place is formed with through hole；Lower spring cup 14, disc spring 15, upper spring seat 16 and thrust bearing 17 are sequentially arranged at upper valve body from bottom to up
In 21 centre bore；The lower part of adjusting bolt 19 sequentially passes through the through hole of gland 20 and the center of thrust bearing 17 from the top down
Hole, and upper external is provided with the locknut 18 for limiting preload pressure；The top of valve rod 4 is located at one-way valve seat 8, spacer 7
And in the centre bore of bushing 12, during lower end is located in lower valve body 1 and 26 corresponding position of inlet, and lower end diameter is more than
Upper diameter；Guide sleeve 13 is located at the inside of bushing 12；4 upper end of valve rod is after the centre bore of guide sleeve 13 by 23 He of round nut
Locking nut 22 is fixed, and the lower end of lower spring cup 14 is fixed on the upper end of locking nut 22, therefore guide sleeve 13, valve rod
4th, round nut 23, locking nut 22 and lower spring cup 14 can be moved up and down together；Nonreturn valve core 9 is ring-type, is located in valve rod 4
In space between portion and spacer 7, upper end is provided with the y-type seal ring 24 being sleeved on outside valve rod 4, and utilizes pressure ring 11 by Y types
Sealing ring 24 is fixed on nonreturn valve core 9；One-way valve spring 10 is sleeved on outside 4 top of valve rod between guide sleeve 13 and pressure ring 11
Portion；Overflow valve spring 3 is sleeved on outside 4 lower end of valve rod between one-way valve seat 8 and relief valve seat 2.
The lower circumferential face of the valve rod 4 is in inversed taper platform shape, while the upper port of relief valve seat 2 is also in inversed taper platform shape,
Contacted between the two for line, therefore good seal performance, reliability are high.
The lower circumferential face of the nonreturn valve core 9 is in inversed taper platform shape, while the upper port of one-way valve seat 8 is also in inversed taper platform
Shape, contacts for line between the two, therefore good seal performance, and reliability is high.
The lower end of the guide sleeve 13 is additionally provided with a y-type seal ring 28, and 28 lower end of y-type seal ring is equipped with a sealing
Pad 29, to improve sealing effect.
The center-hole diameter of the lower spring cup 14 is equal to 22 upper end outside diameter of locking nut, the outside diameter and lining of guide sleeve 13
Set 12 internal diameter it is identical, with ensure 4 movement locus of valve rod to neutrality.
Sealing is equipped between the bushing 12 and lower valve body 1, one-way valve seat 8 and lower valve body 1, relief valve seat 2 and lower valve body 1
Circle.
Now the one-way pressure-regulating overflow valve operation principle provided by the invention with thrust bearing is described below：During use first
Inlet 26 is connected with the Drainage pipe of plunger pump.When the high-pressure medium pressure of plunger pump discharge is in normally-pressured neighbor
When, the high-pressure medium pressure in inlet 26 is less than the elastic force of disc spring 15, and at this moment the lower end of valve rod 4 will be against relief valve seat 2
Upper port at, therefore high-pressure medium may not flow into elbow 6, when the high-pressure medium pressure of plunger pump discharge is overflow more than one-way pressure-regulating
When flowing the predetermined pressure of valve, the high-pressure medium flowed into from inlet 26 in 1 centre bore lower cavity of lower valve body will above push away check valve
Core 9, y-type seal ring 24 and pressure ring 11, so that the upper port of one-way valve seat 8 is left in 9 lower end of nonreturn valve core, thus compression is unidirectional
Valve spring 10, at this moment high-pressure medium will enter the inside of spacer 7 and bushing 12, then above push away guide sleeve 13, it is upper due to valve rod 4
End is fixed together with guide sleeve 13, therefore valve rod 4 also together moves up, thus on push spring base 14 and compress disc spring 15,
Overflow valve spring 3 is compressed by valve rod 4 at the same time；Once valve rod 4 leaves relief valve seat 2, it is situated between into the high pressure in 1 centre bore of lower valve body
Matter will be flowed outwardly by the inside of relief valve seat 2 and elbow 6, thus achieve the purpose that pressure release.Treat that the pressure of high-pressure medium subtracts
As little as normal range (NR) when, under disc spring 15 and the resilient force of overflow valve spring 3, valve rod 4 will move down, until valve rod 4
Lower end seal up the upper port of relief valve seat 2, at the same time, nonreturn valve core 9, y-type seal ring 24 and pressure ring 11 will be unidirectional
Moved down under the resilient force of valve spring 10, until the lower end of nonreturn valve core 9 seals up the upper port of one-way valve seat 8, by
This reaches the effect of secondary seal.And the high-pressure medium inside spacer 7 and bushing 12 is previously entered by by the overcurrent on spacer 7
Hole 27 is discharged through the leakage fluid dram 25 in lower valve body 1.
Claims (6)
- A kind of 1. one-way pressure-regulating overflow valve with thrust bearing, it is characterised in that：The one-way pressure-regulating with thrust bearing overflows Flowing valve includes lower valve body (1), relief valve seat (2), overflow valve spring (3), valve rod (4), lower flange (5), elbow (6), spacer (7), one-way valve seat (8), nonreturn valve core (9), one-way valve spring (10), pressure ring (11), bushing (12), guide sleeve (13), lower bullet Spring abutment (14), disc spring (15), upper spring seat (16), thrust bearing (17), locknut (18), adjusting bolt (19), gland (20), on Valve body (21), locking nut (22), round nut (23), y-type seal ring (24)；Wherein lower valve body (1) is vertically disposed square tube A leakage fluid dram being connected with centre bore (25) and inlet are formed through in shape structure, middle part and lower side respectively (26)；Elbow (6) is fixed on the lower port of lower valve body (1) as overflow port the upper end using lower flange (5) and stud, nut Place；Relief valve seat (2) is ring-type, is arranged on the position on the downside of inlet (26) in the centre bore of lower valve body (1)；Check valve Seat (8) is ring-type, is arranged on the position on the upside of inlet (26) in the centre bore of lower valve body (1)；Spacer (7) is arranged on list To the upper end of valve seat (8), and on periphery formed with leakage fluid dram (25) corresponding flowing hole (27) in lower valve body (1)； Bushing (12) is arranged on the upper end of spacer (7)；Upper valve body (21) is vertically disposed square tube type structure, installed in lower valve body (1) Upper end, lower port edge is downwardly projected formed with a bulge loop being inserted into lower valve body (1) upper port；Gland (20) The upper end of upper valve body (21) is fixed on using stud, nut, formed with through hole at center；Lower spring cup (14), disc spring (15), Upper spring seat (16) and thrust bearing (17) are sequentially arranged in the centre bore of upper valve body (21) from bottom to up；Adjusting bolt (19) Lower part sequentially passes through the through hole of gland (20) and the centre bore of thrust bearing (17) from the top down, and upper external is provided with For limiting the locknut (18) of preload pressure；The top of valve rod (4) is located in one-way valve seat (8), spacer (7) and bushing (12) In heart hole, lower end is located in lower valve body (1) and inlet (26) corresponding position, and lower end diameter is straight more than middle and upper part Footpath；Guide sleeve (13) is located at the inside of bushing (12)；Valve rod (4) upper end is after the centre bore of guide sleeve (13) by round nut (23) fixed with locking nut (22), and the lower end of lower spring cup (14) is fixed on the upper end of locking nut (22), therefore Guide sleeve (13), valve rod (4), round nut (23), locking nut (22) and lower spring cup (14) can be moved up and down together；Unidirectionally Spool (9) is ring-type, is located in the space between valve rod (4) middle part and spacer (7), and upper end, which is provided with, is sleeved on valve rod (4) outside Y-type seal ring (24), and using pressure ring (11) y-type seal ring (24) is fixed on nonreturn valve core (9)；One-way valve spring (10) valve rod (4) upper external being sleeved between guide sleeve (13) and pressure ring (11)；Overflow valve spring (3) is sleeved on positioned at check valve Outside valve rod (4) lower end between seat (8) and relief valve seat (2).
- 2. the one-way pressure-regulating overflow valve according to claim 1 with thrust bearing, it is characterised in that：The valve rod (4) Lower circumferential face be in inversed taper platform shape, while the upper port of relief valve seat (2) is also in inversed taper platform shape, is line contact between the two, Therefore good seal performance, reliability are high.
- 3. the one-way pressure-regulating overflow valve according to claim 1 with thrust bearing, it is characterised in that：The nonreturn valve core (9) lower circumferential face is in inversed taper platform shape, while the upper port of one-way valve seat (8) is also in inversed taper platform shape, is connect between the two for line Touch, therefore good seal performance, reliability are high.
- 4. the one-way pressure-regulating overflow valve according to claim 1 with thrust bearing, it is characterised in that：The guide sleeve (13) lower end is additionally provided with a y-type seal ring (28), and y-type seal ring (28) lower end is equipped with a gasket (29), to improve Sealing effect.
- 5. the one-way pressure-regulating overflow valve according to claim 1 with thrust bearing, it is characterised in that：The lower spring cup (14) center-hole diameter is equal to locking nut (22) upper end outside diameter, the internal diameter phase of the outside diameter and bushing (12) of guide sleeve (13) Together, with ensure valve rod (4) movement locus to neutrality.
- 6. the one-way pressure-regulating overflow valve according to claim 1 with thrust bearing, it is characterised in that：The bushing (12) Sealing ring is equipped between lower valve body (1), one-way valve seat (8) and lower valve body (1), relief valve seat (2) and lower valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610531394.2A CN106015675B (en) | 2016-07-07 | 2016-07-07 | A kind of one-way pressure-regulating overflow valve with thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610531394.2A CN106015675B (en) | 2016-07-07 | 2016-07-07 | A kind of one-way pressure-regulating overflow valve with thrust bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106015675A CN106015675A (en) | 2016-10-12 |
| CN106015675B true CN106015675B (en) | 2018-04-24 |
Family
ID=57108128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610531394.2A Active CN106015675B (en) | 2016-07-07 | 2016-07-07 | A kind of one-way pressure-regulating overflow valve with thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106015675B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578638B (en) * | 2017-09-28 | 2021-01-29 | 中国石油天然气股份有限公司 | Reverse stop valve |
| CN108331950B (en) * | 2018-02-09 | 2020-03-17 | 中国第一汽车股份有限公司 | Valve core limiting device of flow limiting valve for common rail system |
| CN108868587B (en) * | 2018-07-31 | 2024-06-04 | 天津立林石油机械有限公司 | Anti-reverse screw drilling tool with overload protection for transmission shaft |
| CN109764166B (en) * | 2019-03-12 | 2020-03-20 | 上海欧特莱阀门机械有限公司 | Conveniently-adjusted anti-backflow check valve and operation method thereof |
| CN110159811B (en) * | 2019-06-11 | 2024-01-26 | 天津市海盛泵业制造有限公司 | Pressure regulating overflow valve of high-pressure pump |
| CN111306123B (en) * | 2019-12-23 | 2024-07-09 | 武汉华喜特种液压设备有限公司 | Damping type safety overflow valve capable of self-aligning |
| CN112728169A (en) * | 2020-12-16 | 2021-04-30 | 陈忠菊 | Check valve with adjusting function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314805A (en) * | 2014-09-22 | 2015-01-28 | 刘国利 | Mine pump automatic unloading hydraulic control valve assembly |
| CN104455503A (en) * | 2013-09-21 | 2015-03-25 | 徐介斌 | High-pressure large-flow depressurizing valve |
| CN104500796A (en) * | 2014-11-13 | 2015-04-08 | 浙江大农实业股份有限公司 | Pressure regulating valve |
| CN205806597U (en) * | 2016-07-07 | 2016-12-14 | 天津市海盛泵业制造有限公司 | A kind of one-way pressure-regulating overflow valve of band thrust bearing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070137705A1 (en) * | 2005-11-16 | 2007-06-21 | Chile Auto Parts Co., Ltd. | Pressure-relief and cutoff device for an air compressor |
| KR20090127859A (en) * | 2009-11-18 | 2009-12-14 | 유운상 | Check type pressure reducing valve |
| JP2013113487A (en) * | 2011-11-29 | 2013-06-10 | Time Engineering Co Ltd | Backflow preventing device |
-
2016
- 2016-07-07 CN CN201610531394.2A patent/CN106015675B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455503A (en) * | 2013-09-21 | 2015-03-25 | 徐介斌 | High-pressure large-flow depressurizing valve |
| CN104314805A (en) * | 2014-09-22 | 2015-01-28 | 刘国利 | Mine pump automatic unloading hydraulic control valve assembly |
| CN104500796A (en) * | 2014-11-13 | 2015-04-08 | 浙江大农实业股份有限公司 | Pressure regulating valve |
| CN205806597U (en) * | 2016-07-07 | 2016-12-14 | 天津市海盛泵业制造有限公司 | A kind of one-way pressure-regulating overflow valve of band thrust bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106015675A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106015675B (en) | A kind of one-way pressure-regulating overflow valve with thrust bearing | |
| CN205806597U (en) | A kind of one-way pressure-regulating overflow valve of band thrust bearing | |
| CN202209452U (en) | Safety inverted valve | |
| CN110159811B (en) | Pressure regulating overflow valve of high-pressure pump | |
| CN103291986A (en) | Directly-operated type reducing valve | |
| CN205859278U (en) | A kind of direct-acting overflow valve | |
| CN104500791A (en) | Power-assistance lift check valve | |
| CN203743523U (en) | Adjustable one-way valve | |
| CN210461828U (en) | Flow differential pressure setting valve | |
| CN207906499U (en) | 150MPa super high pressure fluid pressure regulator valves | |
| CN108843530B (en) | Manual hydraulic split pump | |
| CN217632894U (en) | Mining emulsion plunger pump | |
| CN110307347A (en) | A kind of high sealing pressure reducing valve | |
| CN206592275U (en) | A kind of sealing structure on plunger pump | |
| CN112833229B (en) | Lining fluorine integral anti-corrosion safety valve | |
| CN205423980U (en) | Zero leakage liquid accuse pressure regulating valve | |
| CN211649100U (en) | Pneumatic control valve | |
| JPH0427391B2 (en) | ||
| CN107202041A (en) | A kind of new high carbon fiber winding type accumulator | |
| CN208311564U (en) | A kind of one-way conduction valve body | |
| CN207796206U (en) | A kind of Running water relief valve of Small leak amount | |
| CN208859016U (en) | The accurate double regulation safety valves of high temperature | |
| CN203784318U (en) | Self-sealing pressure stop valve | |
| CN201269187Y (en) | Pressure-regulating spilling system of plunger type high-pressure water pump | |
| CN103899768A (en) | Pressure self-sealing stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |