CN106015675A - One-way pressure regulating overflow valve with thrust bearing - Google Patents
One-way pressure regulating overflow valve with thrust bearing Download PDFInfo
- Publication number
- CN106015675A CN106015675A CN201610531394.2A CN201610531394A CN106015675A CN 106015675 A CN106015675 A CN 106015675A CN 201610531394 A CN201610531394 A CN 201610531394A CN 106015675 A CN106015675 A CN 106015675A
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- Prior art keywords
- valve
- way
- valve body
- thrust bearing
- spring
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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
- 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
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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
- 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
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—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
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Abstract
A one-way pressure regulating overflow valve with a thrust bearing comprises a lower valve body, an overflow valve seat, an overflow valve spring, a valve rod, a lower flange, a bend, a spacer bush, a one-way valve seat, a one-way valve element, a one-way valve spring, a compression ring, a lining, a guiding sleeve, a lower spring base, a disc spring, an upper spring base, the thrust bearing, a lock nut, an adjusting bolt, a gland, an upper valve body, a locking nut, a round nut and a Y-shaped sealing ring. According to the one-way pressure regulating overflow valve, the liquid collection type overflow manner is adopted, the field work environment is changed, and meanwhile resources are saved; the independent overflow valve seat and the independent one-way valve seat are easy to machine, maintain and replace; the disc spring with the large rigidity and variable rigidity is used, and therefore flow different in pressure in the system can be accurately controlled; the stroke is short, the load is large, the axial occupied space is small, and combined usage is convenient; and the one-way pressure regulating overflow valve serves as a mechanical load for overcoming the medium pressure, the one-way pressure regulating overflow valve is suitable for a structure with the wide load range and more suitable for a high-pressure structure, the valve is opened and closed in time, a valve element is not prone to frequent adjustment or vibration, and dismounting, mounting and replacing are easy.
Description
Technical field
The invention belongs to hydraulic machinery technical field, particularly relate to the one-way pressure-regulating overflow of a kind of band thrust bearing
Valve.
Technical background
High pressure reciprocating pump, also known as plunger displacement pump, is an important device of hydraulic system, check valve, pressure regulation
Overflow valve is then indispensable protection element in high pressure reciprocating plunger pumping system.Current conventional check valve,
Pressure adjustment relief valve majority is split type to regulate valve manually.Wherein pressure adjustment relief valve is used for regulating system pressure,
Making its constant flow, when system pressure increases and exceedes force value set in advance, overflow valve is opened, many
Residual current amount overflow, system pressure is not further added by such that it is able to ensure that outlet of plunger pump pressure is constant.System is just
When often working, this valve closing.Check valve ensure that system mesohigh medium does not refluxes, a folk prescription
To flowing.But the shortcoming of above-mentioned check valve, pressure adjustment relief valve is owing to it is split-type structural, therefore
Adding the leak source that leaks, and the structure design of pressure adjustment relief valve is unreasonable, therefore degree of regulation is the highest, especially
It is high-pressure overflow valve, and preset pressure value is high, manually needs to provide big moment of torsion during regulation, the most arduously, and
Operate with inconvenience.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of easy and simple to handle, degree of regulation is high,
The one-way pressure-regulating overflow valve of labour-saving band thrust bearing.
In order to achieve the above object, the one-way pressure-regulating overflow valve of the band thrust bearing that the present invention provides includes lower valve
Body, relief valve seat, overflow valve spring, valve rod, lower flange, elbow, spacer, one-way valve seat, unidirectional
Spool, one-way valve spring, pressure ring, lining, fairlead, lower spring cup, disc spring, upper spring seat, thrust
Bearing, locknut, regulation bolt, gland, upper valve body, locking nut, round nut, y-type seal ring；Wherein
Lower valve body is vertically disposed square tube type structure, middle part and lower side have been formed through respectively one with in
Leakage fluid dram that central hole is connected and inlet；Elbow as its upper end of overfall utilize lower flange and stud,
Nut is fixed at the lower port of lower valve body；Relief valve seat is ring-type, is arranged on position in the centre bore of lower valve body
Position on the downside of inlet；One-way valve seat is ring-type, is arranged in the centre bore of lower valve body and is positioned at inlet
The position of upside；Spacer is arranged on the upper end of one-way valve seat, and is formed on periphery and row on lower valve body
The flowing hole that liquid mouth is corresponding；Lining is arranged on the upper end of spacer；Upper valve body is vertically disposed square tube type knot
Structure, is arranged on the upper end of lower valve body, and lower port edge is downwardly projected and is formed with one and is inserted at lower valve body
Bulge loop in upper port；Gland utilizes stud, nut to be fixed on the upper end of upper valve body, and center is formed to be passed through
Through hole；Lower spring cup, disc spring, upper spring seat and thrust bearing are sequentially arranged at the center of upper valve body from bottom to up
In hole；The bottom of regulation bolt sequentially passes through the through hole of gland and the centre bore of thrust bearing from the top down,
And upper external is provided with the locknut for limiting preload pressure；The top of valve rod be located at one-way valve seat, every
In the centre bore of set and lining, lower end is positioned at the position that lower valve body is corresponding with inlet, and lower end is straight
Footpath is more than middle and upper part diameter；Fairlead is located at the inside of lining；After the centre bore of fairlead is run through in valve rod upper end
Fixed by round nut and locking nut, and the lower end of lower spring cup is fixed on the upper end of locking nut, because of
This fairlead, valve rod, round nut, locking nut and lower spring cup can together move up and down；Nonreturn valve core
For ring-type, being located in the space in the middle part of valve rod and between spacer, upper end is provided with that to be enclosed within the Y type of stem exterior close
Seal, and utilize pressure ring to be fixed on nonreturn valve core by y-type seal ring；One-way valve spring is enclosed within fairlead and pressure
Valve rod upper external between ring；Overflow valve spring housing is at the valve rod between one-way valve seat and relief valve seat
Outside lower end.
The lower circumferential face of described valve rod is inversed taper platform shape, and the upper port of relief valve seat is also in inversed taper platform simultaneously
Shape, is linear contact lay, therefore good seal performance between the two, and reliability is high.
The lower circumferential face of described nonreturn valve core is inversed taper platform shape, and the upper port of one-way valve seat is also in falling simultaneously
Taper type, is linear contact lay, therefore good seal performance between the two, and reliability is high.
The lower end of described fairlead is additionally provided with a y-type seal ring, and y-type seal ring lower end is provided with a sealing
Pad, to improve sealing effectiveness.
The center-hole diameter of described lower spring cup is equal to locking nut upper end external diameter, the external diameter of fairlead and lining
The internal diameter of set is identical, to ensure the centering of stem movement track.
It is provided with sealing between described lining and lower valve body, one-way valve seat and lower valve body, relief valve seat and lower valve body
Circle.
The one-way pressure-regulating overflow valve of the band thrust bearing that the present invention provides uses liquid collecting type overflow manner, i.e. liquid
Overflow be to make into concentrate orientation off-load by conventional arbitrarily discharge, improve the working environment at scene, simultaneously
Also save resource.Independent relief valve seat and one-way valve seat are prone to processing maintenance and change；Use rigidity big,
The disc spring becoming rigidity is beneficial to the flow of different pressures size in accuracy-control system, and stroke is short, and load is big, axle
Little to taking up room, it is applied in combination conveniently, core is not likely to produce frequency modulation and flutter phenomenon, and disassembling, assembling and replacing is simple；
Thrust bearing is used for reducing pressure regulation moment of torsion, makes pressure regulate convenient laborsaving and precision is high, easily operate；
And leaking few, compact conformation, service life is long.
Accompanying drawing explanation
The one-way pressure-regulating overflow valve external structure schematic diagram of the band thrust bearing that Fig. 1 provides for the present invention.
The one-way pressure-regulating overflow valve vertical structure sectional view of the band thrust bearing that Fig. 2 provides for the present invention.
Detailed description of the invention
The one-way pressure-regulating overflow valve of the band thrust bearing with specific embodiment, the present invention provided below in conjunction with the accompanying drawings
It is described in detail.
As shown in Fig. 1 Fig. 2, the one-way pressure-regulating overflow valve of the band thrust bearing that the present invention provides 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, lining 12, fairlead 13, lower spring cup 14, disc spring 15,
Upper spring seat 16, thrust bearing 17, locknut 18, regulation bolt 19, gland 20, upper valve body 21, locking screw
Mother 22, round nut 23, y-type seal ring 24；Wherein descending valve body 1 is vertically disposed square tube type structure, middle part
Be formed through a leakage fluid dram being connected with centre bore 25 and inlet 26 in lower side respectively；Curved
6 utilize lower flange 5 and stud, nut to be fixed at the lower port of lower valve body 1 as its upper end of overfall；
Relief valve seat 2 is ring-type, is arranged in the centre bore of lower valve body 1 and is positioned at the position on the downside of inlet 26；Unidirectional
Valve seat 8 is ring-type, is arranged in the centre bore of lower valve body 1 and is positioned at the position on the upside of inlet 26；Spacer 7 is arranged
In the upper end of one-way valve seat 8, and on periphery, it is formed with the excessively stream corresponding with leakage fluid dram 25 on lower valve body 1
Hole 27；Lining 12 is arranged on the upper end of spacer 7；Upper valve body 21 is vertically disposed square tube type structure, is arranged on
The upper end of lower valve body 1, lower port edge is downwardly projected and is formed with one and is inserted in lower valve body 1 upper port
Bulge loop；Gland 20 utilizes stud, nut to be fixed on the upper end of upper valve body 21, and center 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 21 from bottom to up
In centre bore；The bottom of regulation bolt 19 sequentially passes through through hole and the thrust bearing 17 of gland 20 from the top down
Centre bore, and upper external is provided with the locknut 18 for limiting preload pressure；The top of valve rod 4 is located at
In the centre bore of one-way valve seat 8, spacer 7 and lining 12, it is corresponding with inlet 26 that lower end is positioned at lower valve body 1
Position, and lower end diameter is more than middle and upper part diameter；Fairlead 13 is located at the inside of lining 12；On valve rod 4
End is fixed by round nut 23 and locking nut 22 after running through the centre bore of fairlead 13, and lower spring cup 14
Lower end be fixed on the upper end of locking nut 22, therefore fairlead 13, valve rod 4, round nut 23, locking nut
22 and lower spring cup 14 can together move up and down；Nonreturn valve core 9 is ring-type, is located in the middle part of valve rod 4 and spacer 7
Between space in, upper end is provided with the y-type seal ring 24 being enclosed within outside valve rod 4, and utilizes pressure ring 11 by Y
RunddichtringO 24 is fixed on nonreturn valve core 9；One-way valve spring 10 is enclosed within the valve between fairlead 13 and pressure ring 11
Bar 4 upper external；Outside valve rod 4 lower end that overflow valve spring 3 is enclosed between one-way valve seat 8 and relief valve seat 2
Portion.
The lower circumferential face of described valve rod 4 is inversed taper platform shape, and the upper port of relief valve seat 2 is also in back taper simultaneously
Platform shape, is linear contact lay, therefore good seal performance between the two, and reliability is high.
The lower circumferential face of described nonreturn valve core 9 is inversed taper platform shape, simultaneously the upper port of one-way valve seat 8 also in
Inversed taper platform shape, is linear contact lay, therefore good seal performance between the two, and reliability is high.
The lower end of described fairlead 13 is additionally provided with a y-type seal ring 28, and y-type seal ring 28 lower end is provided with one
Individual sealing gasket 29, to improve sealing effectiveness.
The center-hole diameter of described lower spring cup 14 is equal to locking nut 22 upper end external diameter, outside fairlead 13
Footpath is identical with the internal diameter of lining 12, to ensure the centering of valve rod 4 movement locus.
Set between described lining 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
There is sealing ring.
The one-way pressure-regulating overflow valve operation principle of the band the thrust bearing now present invention provided is described below: use
Inlet 26 is connected by Shi Shouxian with the Drainage pipe of plunger displacement pump.At the high-pressure medium pressure that plunger displacement pump is discharged
When normally-pressured neighbor, the high-pressure medium pressure in inlet 26 is less than the elastic force of disc spring 15, at this moment
The lower end of valve rod 4 will be against at the upper port of relief valve seat 2, and therefore high-pressure medium may not flow into elbow 6, when
When the high-pressure medium pressure that plunger displacement pump is discharged exceedes the predetermined pressure of one-way pressure-regulating overflow valve, flow from inlet 26
Enter high-pressure medium in lower valve body 1 centre bore lower cavity by push away nonreturn valve core 9, y-type seal ring 24 and
Pressure ring 11, so that the upper port of one-way valve seat 8, thus compression check valve bullet are left in nonreturn valve core 9 lower end
Spring 10, at this moment high-pressure medium will enter spacer 7 and the inside of lining 12, then on push away fairlead 13, by
Being to be fixed together with fairlead 13 in the upper end of valve rod 4, therefore valve rod 4 also one ibid moves, thus on push away
Lower spring cup 14 and compress disc spring 15, simultaneously compressed overflow valve spring 3 by valve rod 4；Once valve rod 4 leaves
Relief valve seat 2, entering the high-pressure medium in lower valve body 1 centre bore will be by relief valve seat 2 inside and elbow
6 flow outwardly, and thus reach the purpose of pressure release.When the pressure of high-pressure medium reduced to normal range, at dish
Under the resilient force of spring 15 and overflow valve spring 3, valve rod 4 will move down, until the lower end of valve rod 4
Seal up the upper port of relief valve seat 2, meanwhile, nonreturn valve core 9, y-type seal ring 24 and pressure ring 11
To move down under the resilient force of one-way valve spring 10, until the lower end of nonreturn valve core 9 seals up list
To the upper port of valve seat 8, thus reach the effect of secondary seal.And be previously entered in spacer 7 and lining 12
The high-pressure medium in portion will be discharged by the leakage fluid dram 25 on lower valve body 1 of the flowing hole 27 on spacer 7.
Claims (6)
1. the one-way pressure-regulating overflow valve of a band thrust bearing, it is characterised in that: described band thrust bearing
One-way pressure-regulating overflow valve include 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), check valve
Spring (10), pressure ring (11), lining (12), fairlead (13), lower spring cup (14), disc spring (15),
Upper spring seat (16), thrust bearing (17), locknut (18), regulation bolt (19), gland (20), on
Valve body (21), locking nut (22), round nut (23), y-type seal ring (24)；Wherein descend valve body (1)
For vertically disposed square tube type structure, middle part and lower side have been formed through respectively one with centre bore phase
The leakage fluid dram (25) of connection and inlet (26)；Elbow (6) utilizes bottom method as its upper end of overfall
Blue (5) and stud, nut are fixed at the lower port of lower valve body (1)；Relief valve seat (2) is ring-type,
It is arranged in the centre bore of lower valve body (1) position being positioned at inlet (26) downside；One-way valve seat (8)
For ring-type, it is arranged in the centre bore of lower valve body (1) position being positioned at inlet (26) upside；Spacer (7)
It is arranged on the upper end of one-way valve seat (8), and on periphery, is formed with leakage fluid dram (25) upper with lower valve body (1)
Corresponding flowing hole (27)；Lining (12) is arranged on the upper end of spacer (7)；Upper valve body (21) is
Vertically disposed square tube type structure, is arranged on the upper end of lower valve body (1), and lower port edge is downwardly projected formation
There is a bulge loop being inserted in lower valve body (1) upper port；Gland (20) utilizes stud, nut solid
Being scheduled on the upper end of upper valve body (21), center is formed with through hole；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；
The bottom of regulation bolt (19) sequentially passes through through hole and the thrust bearing (17) of gland (20) from the top down
Centre bore, and upper external is provided with the locknut (18) for limiting preload pressure；Valve rod (4)
Top is located in the centre bore of one-way valve seat (8), spacer (7) and lining (12), and lower end is positioned at lower valve body
(1) position corresponding with inlet (26) in, and lower end diameter is more than middle and upper part diameter；Fairlead
(13) inside of lining (12) it is located at；Valve rod (4) upper end run through after the centre bore of fairlead (13) by
Round nut (23) and locking nut (22) are fixed, and the lower end of lower spring cup (14) is fixed on lock
The upper end of jack panel (22), therefore fairlead (13), valve rod (4), round nut (23), locking nut
(22) can together move up and down with lower spring cup (14)；Nonreturn valve core (9) is ring-type, is located at valve rod
(4), in the space between middle part and spacer (7), it is close that upper end is provided with the Y type being enclosed within valve rod (4) outside
Seal (24), and utilize pressure ring (11) to be fixed on nonreturn valve core (9) by y-type seal ring (24)；Single
Valve rod (4) upper external being enclosed between fairlead (13) and pressure ring (11) to valve spring (10)；Overflow
Stream valve spring (3) is enclosed within valve rod (4) lower end being positioned between one-way valve seat (8) and relief valve seat (2)
Outside.
The one-way pressure-regulating overflow valve of band thrust bearing the most according to claim 1, it is characterised in that: institute
The lower circumferential face of the valve rod (4) stated is inversed taper platform shape, and the upper port of relief valve seat (2) is also in falling simultaneously
Taper type, is linear contact lay, therefore good seal performance between the two, and reliability is high.
The one-way pressure-regulating overflow valve of band thrust bearing the most according to claim 1, it is characterised in that: institute
The lower circumferential face of the nonreturn valve core (9) stated is inversed taper platform shape, and the upper port of one-way valve seat (8) is also simultaneously
In inversed taper platform shape, being linear contact lay, therefore good seal performance between the two, reliability is high.
The one-way pressure-regulating overflow valve of band thrust bearing the most according to claim 1, it is characterised in that: institute
The lower end of the fairlead (13) stated is additionally provided with a y-type seal ring (28), y-type seal ring (28) lower end
It is provided with a sealing gasket (29), to improve sealing effectiveness.
The one-way pressure-regulating overflow valve of band thrust bearing the most according to claim 1, it is characterised in that: institute
The center-hole diameter of the lower spring cup (14) stated is equal to locking nut (22) upper end external diameter, fairlead (13)
External diameter identical with the internal diameter of lining (12), to ensure the centering of valve rod (4) movement locus.
The one-way pressure-regulating overflow valve of band thrust bearing the most according to claim 1, it is characterised in that: institute
The lining (12) stated and lower valve body (1), one-way valve seat (8) and lower valve body (1), relief valve seat (2)
And it is provided with sealing ring between 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 true CN106015675A (en) | 2016-10-12 |
| CN106015675B CN106015675B (en) | 2018-04-24 |
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| 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 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331950A (en) * | 2018-02-09 | 2018-07-27 | 中国第汽车股份有限公司 | Common rail system flow restriction valve core limiting device |
| CN108868587A (en) * | 2018-07-31 | 2018-11-23 | 天津立林石油机械有限公司 | Anti- transmission shaft with overload protection reverses helicoid hydraulic motor |
| CN109578638A (en) * | 2017-09-28 | 2019-04-05 | 中国石油天然气股份有限公司 | Reversed shut-off valve |
| CN109764166A (en) * | 2019-03-12 | 2019-05-17 | 湖北娅安科技开发有限公司 | A kind of anti-reverse flow type back valve and its operating method convenient for adjusting |
| CN110159811A (en) * | 2019-06-11 | 2019-08-23 | 天津市海盛泵业制造有限公司 | A kind of high-pressure pump pressure adjustment relief valve |
| CN112728169A (en) * | 2020-12-16 | 2021-04-30 | 陈忠菊 | Check valve with adjusting function |
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