CN109555882A - A kind of safety valve suitable for oil-filled cabinet - Google Patents
A kind of safety valve suitable for oil-filled cabinet Download PDFInfo
- Publication number
- CN109555882A CN109555882A CN201910053652.4A CN201910053652A CN109555882A CN 109555882 A CN109555882 A CN 109555882A CN 201910053652 A CN201910053652 A CN 201910053652A CN 109555882 A CN109555882 A CN 109555882A
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- Prior art keywords
- valve seat
- oil
- opening
- safety valve
- spool
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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
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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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
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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
-
- 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
- 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
- F16K1/42—Valve seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of safety valves suitable for oil-filled cabinet, it is related to marine technology field, the safety valve, which can be convenient, quickly accesses various conventional and unconventional oil-filled cabinet, adjustable pre-compression force is provided using pressure spring, it is opened using outside force or internal pressure, pressure spring resets, safety valve can open Quick air-discharge when realizing that oil-filled cabinet is oil-filled from external force, safety valve can also be opened under internal oil pressure effect, realize the release to oil-filled cabinet inner fluid, protect cabinet, the pre-compression force that pressure spring provides is adjustable, so as to realize the setting of opening pressure of safety valve, the controllability of a certain range internal safety valve cracking pressure may be implemented simultaneously, the safety valve of the application is provided with release damping unit simultaneously, prevent excessive velocities when release from extraneous seawater being caused to blow back into oil-filled case Body, good sealing structure are arranged so that the safety valve can remain good sealing effect under big depth marine environment.
Description
Technical field
The present invention relates to marine technology field, especially a kind of safety valve suitable for oil-filled cabinet.
Background technique
When the big depth of water works, extraneous hydraulic pressure is very big by manned underwater vehicle or unmanned submersible, submersible in order to mitigate weight,
The cabinet of hydraulic power source fuel tank, clack box and junction box etc are all made of the form of the oil-filled pressure compensator external again of box house.
Traditional cabinet or pressure compensator is provided with special air vent, discharge cabinet or pressure when being used to oil-filled
Gas in compensator, such method need frequently to turn the seal plug on air vent, and over time, screw thread is easily damaged,
To influence sealing effect.Meanwhile for clack box, if the sealing of valve group and valve block goes wrong, hydraulic system
Hydraulic oil will enter clack box, increase so as to cause clack box inner fluid, oil pressure increase, cause the clack box of non-pressure resistance to crack
Etc. damaged conditions.
Summary of the invention
The present inventor regarding to the issue above and technical need, proposes a kind of safety valve suitable for oil-filled cabinet, the peace
Full valve, which can be convenient, quickly accesses various conventional or unconventional oil-filled cabinet, it can be achieved that quick row when oil-filled oil-filled cabinet
The release of oil-filled cabinet inner fluid also may be implemented in gas.
Technical scheme is as follows:
A kind of safety valve suitable for oil-filled cabinet, including oil-filled cabinet, the safety valve include: valve seat, spool and damping
Cover board；The inside of valve seat offers cavity, and cavity is respectively formed the first opening and the second opening at the axial both ends of valve seat, and
The diameter of first opening is less than the diameter of cavity；The head of spool is in link mechanism, the company of spool tail portion in stopper structure, tail portion
Rod structure is stretched in the cavity of valve seat by the first opening, stopper structure is located at the outside of valve seat, is set at the top of stopper structure
It is equipped with stretching structure；The diameter of link mechanism forms gap between link mechanism and the first opening less than the diameter of the first opening；
The link mechanism of spool tail portion is from first to last successively arranged with pressure spring, retaining ring and locking nut, pressure spring, retaining ring and lock
Tight nut is respectively positioned in the cavity of valve core inside, one end of pressure spring support be located at cavity and step that the first opening is formed at,
The other end is supported and is located on retaining ring, and retaining ring and locking nut fix pressure spring and realize the precommpression of pressure spring；Spool is being adjusted
The pre-compression force effect of pressing spring is lower to be bonded realization with the end face of valve seat to link mechanism by the end face of stopper structure on head
The sealing in gap between the first opening；
The second opening in the cavity of valve seat and being fixed on valve seat is arranged in damping cover board, damps and offers resistance on cover board
Buddhist nun hole, damping hole are connected to the cavity inside valve seat；Valve seat offers helicitic texture in the outer wall of the second opening, and safety valve passes through
Helicitic texture on valve seat, which is fixed on oil-filled cabinet and damps the damping hole on cover board, is connected to oil-filled box house；Oil-filled cabinet
Internal gas and/or high pressure oil is entered in the cavity inside valve seat by damping hole, and spool is in the drawing for acting on stretching structure
It is mobile to the direction that is detached from valve seat and compress pressure regulation under the action of power effect is lower or high pressure oil in the cavity inside valve seat
The end face of spring, the end face of the stopper structure of poppet head and valve seat is detached from, the gap between link mechanism and the first opening with
The external world is connected to, and the cavity that the gas and/or high pressure oil of oil-filled box house are entered inside valve seat by damping hole simultaneously passes through gap
Discharge.
Its further technical solution is that the stopper structure of poppet head and the end face of valve seat being in contact are in conical surface knot
Structure, the stopper structure and valve seat of spool compress by cone structure and realize that metal hard-sealing, cone structure use coating process
It is coated with red copper, the thickness of spraying is not less than 0.2mm.
Its further technical solution is that the end face that valve seat is in contact with the stopper structure of spool is provided with end face seal
Circle, the stopper structure of poppet head contact sealing with end-face seal ring when being bonded with valve seat；The outer wall of valve seat is provided with boss, valve
The helicitic texture of seat outer wall be arranged in boss to valve seat the second opening region, set towards the side of the second opening on boss
Be equipped with end-face seal ring, when safety valve is fixed on oil-filled cabinet by helicitic texture, end-face seal ring on boss with it is oil-filled
Cabinet contact sealing；The inner wall of valve seat is provided with damping cover plate for sealing circle by the conical surface, and the cavity of valve seat is arranged in damping cover board
Sealing is contacted with damping cover plate for sealing circle when middle.
The method have the benefit that:
This application discloses a kind of safety valves suitable for oil-filled cabinet, and the safety valve structure is simple, easy to use, use
Straight thread interface, end face seal mode, can be convenient and quickly access various conventional and unconventional oil-filled cabinet, the safety
Valve provides adjustable pre-compression force using pressure spring, is opened using outside force or internal pressure, pressure spring reset,
Safety valve can open Quick air-discharge when realizing that oil-filled cabinet is oil-filled from external force, and safety valve can also be in interior oil
Pressure effect is lower to open, and realizes the release to oil-filled cabinet inner fluid, protects cabinet, the pre-compression force that pressure spring provides is adjustable
So as to realize the setting of opening pressure of safety valve, while the adjustable of a certain range internal safety valve unlatching may be implemented in section
Property.The safety valve of the application is provided with release damping unit simultaneously, prevents excessive velocities when release from extraneous seawater being caused to blow back into
Oil-filled cabinet, good sealing structure are arranged so that the safety valve can remain good sealing under big depth marine environment
Effect.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view when safety valve disclosed in the present application is closed.
Fig. 2 is that sectional structure when safety valve disclosed in the present application is opened under the pulling force effect for acting on stretching structure shows
It is intended to.
Fig. 3 is external structure schematic diagram when safety valve disclosed in the present application is closed.
Specific embodiment
The following further describes the specific embodiments of the present invention with reference to the drawings.
This application discloses a kind of safety valve suitable for oil-filled cabinet, which is fixed on oil-filled cabinet, here
Oil-filled cabinet include but is not limited to hydraulic power source fuel tank, clack box, junction box and pressure compensator.Please refer to the section view of Fig. 1 and 2
The external structure of figure and Fig. 3, the safety valve of the application specifically includes that valve seat 1, spool 2 and damps cover board 3, in the application
Valve seat 1, spool 2 and damping cover board 3 be respectively adopted titanium alloy or high intensity aluminum alloy materials be made.The inside of valve seat 1
Cavity is offered, cavity is respectively formed the first opening and the second opening, and the diameter of the first opening at the axial both ends of valve seat 1
Less than the diameter of cavity, in Fig. 1 and 2, the upper end of valve seat 1 is the first opening, lower end is the second opening.
The head of spool 2 is in link mechanism in stopper structure, tail portion, and the link mechanism of spool tail portion is stretched by the first opening
Enter to the cavity of valve seat 1, the diameter of the link mechanism of spool tail portion 2 is less than the diameter of the first opening on valve seat 1, to make
Obtaining will form gap between link mechanism and the first opening.The link mechanism of 2 tail portion of spool is from first to last successively arranged with pressure regulation
Spring 4, retaining ring 5 and locking nut 6, pressure spring 4, retaining ring 5 and locking nut 6 are respectively positioned in the cavity inside spool 1, pressure regulation
One end of spring 4 support be located at cavity and first opening formed step at, the other end support be located on retaining ring 5, the connecting rod knot of spool 2
There is external thread structure in the end of structure, and retaining ring 5 and locking nut 6 are both provided with internal screw thread, and retaining ring 5 and locking nut 6 pass through screw thread
The fixed pressure spring 4 of structure connection spool 2 and the precommpression for realizing pressure spring 4.2 link mechanism of spool is screwed in by retaining ring 5
Protrude into the pre-compression force that pressure spring 4 can be set, if the pre-compression force of pressure spring 4 is also when retaining ring 5 is screwed onto extreme position
Requirement is not achieved, then replaces the pressure spring 4 of higher rigidity, locking nut 6 is used to realize double nut lock with retaining ring 5
Tightly, anti-loosing effect is played.Pressure spring 4 in the application is using carbon spring steel wires, surface using coating treatment or directly
Stainless steel and titanium alloy material is selected to be made.Pressure spring 4 can act on retaining ring 5 under the action of pre-compression force and produce to spool 2
The raw active force to the second opening direction so that spool 2 stretched to the cavity of valve seat 1 it is most interior.
The stopper structure of spool 2 is located at the outside of valve seat 1, the structure matching of structure and spool 1, when spool 2 is to valve seat 1
Cavity when stretching to most interior, the end face of stopper structure is bonded with the end face of valve seat 1, in this application, stopper structure and valve seat 1
The end face being in contact is in cone structure, and stopper structure and valve seat 1 compress by cone structure and realize metal hard-sealing, conical surface knot
Structure is coated with red copper using coating process, and the thickness of spraying is not less than 0.2mm.It is real when stopper structure is bonded with the end face of spool 1
Show the sealing to gap between link mechanism and the first opening, so that spool 1 has sealed up the first opening of valve seat 1,
Safety valve is closed, as shown in Figure 1.Simultaneously in order to enable the sealing effect between spool 2 and valve seat 1 is more preferable, valve seat 1 and spool 2
The end face that is in contact of stopper structure be provided with end-face seal ring 7, connect when stopper structure is bonded with valve seat 1 with end-face seal ring 7
Touching seals, and the end-face seal ring 7 in the application is made of nitrile rubber.
Stretching structure 8 is provided at the top of the stopper structure of spool 2, the stretching structure 4 in the application is spherical boss, ball
Shape boss offers the aperture of perforation, and being inserted into spherical boss by rod-like instruments such as allen wrenches can produce to spool 2
To be detached from 1 direction of valve seat pulling force, when pulling force be greater than pressure spring 4 pre-compression force when, spool 2 to be detached from valve seat 1 direction
It moves and compresses pressure spring 4.
Damping cover board 3 is arranged in the cavity of valve seat 1 and is fixed on the second opening of valve seat 1, damps cover board 3 and valve seat
1 inner wall can be connected by helicitic texture, and damping cover board 3 is threaded into the inner chamber body of valve seat 1, and the inner wall of valve seat 1 is logical
It crosses the conical surface and is provided with damping cover plate for sealing circle 9, damping cover board 3 contacts sealing with damping cover plate for sealing circle 9, the damping in the application
Cover plate for sealing circle 9 is also made of nitrile rubber.Damping hole 10 is offered on damping cover board 3, damping hole 10 is connected to inside valve seat 1
Cavity, damp the quantity of damping hole 10 opened up on cover board 3 and position determine according to the actual situation, by opening up 4-6.
The outer wall of valve seat 1 is provided with boss 11, and the outer wall of valve seat 1 offers outer in the region of 11 to the second opening of boss
Helicitic texture is provided with end-face seal ring 12, the end-face seal ring 12 in the application towards the side of the second opening on boss 11
It is made of nitrile rubber.
Safety valve disclosed in the present application is fixed on oil-filled cabinet by the helicitic texture on valve seat 1, the end on boss 11
Face sealing ring 12 contacts sealing with oil-filled cabinet.Damping hole 10 on damping cover board 3 is connected to oil-filled box house.
Safety valve disclosed in the present application can be specific when oil-filled cabinet is oil-filled to oil-filled box house Quick air-discharge:
It acts on stretching structure 8 to generate to the pulling force of spool 2, when pulling force is greater than the pre-compression force of pressure spring 4, spool 2 is to disengaging
The direction of valve seat 1 moves and compresses pressure spring 4, after spool 2 and valve seat 1 are detached from, the link mechanism of spool 2 and the first opening
Between gap with outside be connected to, safety valve open, as shown in Fig. 2, Fig. 2 shows safety valve by allen wrench be inserted into mention
Structural schematic diagram when spool 2 is lifted in the aperture of the spherical boss of pull-up structure 8.The gas of oil-filled box house passes through damping hole
10 enter in the cavity inside valve seat 1, and are discharged by the gap between link mechanism and the first opening, realize exhaust.It is oil-filled
After the completion of box house is full of oil, exhaust, spool 2 is put down until spool 2 is bonded again with the end face of valve seat 1, safety valve is multiple
Position.
Safety valve disclosed in the present application can also carry out safe unloading pressure to oil-filled cabinet, specific: oil-filled box house
High pressure oil can enter the cavity inside valve seat 1 by damping hole 10, flow into the gap between link mechanism and the first opening and work
For the stopper structure of spool 2, when oil-filled box house oil pressure increases above the pre-compression force of pressure spring 4,2 grams of spool
It takes the pre-compression force of pressure spring 4 and is jacked up by high pressure oil and be detached from valve seat 1, between the link mechanism of spool 2 and the first opening
Gap is connected to outside, and the structure of safety valve is similar with Fig. 2 at this time, and the application is no longer separately shown.The height of oil-filled box house
Pressure oil enters the cavity inside valve seat 1 by damping hole 10 and is discharged by the gap between link mechanism and the first opening.When
After oil-filled box house oil pressure decreases below the pre-compression force of pressure spring 4, pre-compression force of the spool 2 in pressure spring 4
Effect is lower to be resetted, and continues that oil-filled cabinet is kept to be isolated with extraneous.
Meanwhile the setting of damping hole 10 can make safety valve play the role of buffering when release and prevent off-load
Speed is too fast, and extraneous seawater is back in oil-filled cabinet.
Above-described is only the preferred embodiment of the application, and present invention is not limited to the above embodiments.It is appreciated that this
The other improvements and change that field technical staff directly exports or associates without departing from the spirit and concept in the present invention
Change, is considered as being included within protection scope of the present invention.
Claims (3)
1. a kind of safety valve suitable for oil-filled cabinet, including oil-filled cabinet, which is characterized in that the safety valve include: valve seat,
Spool and damping cover board；The inside of the valve seat offers cavity, and the cavity distinguishes shape at the axial both ends of the valve seat
It is less than the diameter of the cavity at the diameter of the first opening and the second opening, and first opening；The head of the spool is in
Stopper structure, tail portion are in link mechanism, and the link mechanism of the spool tail portion stretches to the valve seat by first opening
Cavity in, the stopper structure be located at the outside of the valve seat, be provided with stretching structure at the top of the stopper structure；It is described
The diameter of link mechanism is less than the diameter of first opening, forms gap between the link mechanism and first opening；
The link mechanism of the spool tail portion is from first to last successively arranged with pressure spring, retaining ring and locking nut, the pressure spring,
Retaining ring and locking nut are respectively positioned in the cavity of the valve core inside, and one end of the pressure spring, which is supported, is located at the cavity and institute
State at the step of the first opening formation, the other end is supported and is located on the retaining ring, described in the retaining ring and the locking nut are fixed
Pressure spring and the precommpression for realizing the pressure spring；The spool passes through under the pre-compression force effect of the pressure spring
The end face of the stopper structure on head is bonded realization with the end face of the valve seat between the link mechanism and first opening
The sealing in gap；
The damping cover board is arranged in the cavity of the valve seat and is fixed on the second opening of the valve seat, the damping lid
Damping hole is offered on plate, the damping hole is connected to the cavity inside the valve seat；Outer wall of the valve seat in the second opening
Helicitic texture is offered, the safety valve is fixed on the oil-filled cabinet by the helicitic texture on the valve seat and the resistance
Damping hole on Buddhist nun's cover board is connected to the oil-filled box house；The gas and/or high pressure oil of the oil-filled box house pass through institute
Damping hole is stated into the cavity inside the valve seat, the spool under the pulling force effect for acting on the stretching structure or
It is mobile to the direction that is detached from the valve seat and compress the pressure regulation under the action of high pressure oil in the cavity inside the valve seat
The end face of spring, the end face of the stopper structure of the poppet head and the valve seat is detached from, the link mechanism and described first
Gap between opening is in communication with the outside, and the gas and/or high pressure oil of the oil-filled box house are entered by the damping hole
Cavity inside the valve seat is simultaneously discharged by the gap.
2. safety valve according to claim 1, which is characterized in that the stopper structure of the poppet head and the valve seat
The end face being in contact is in cone structure, and the stopper structure of the spool is compressed and realized by the cone structure with the valve seat
Metal hard-sealing, the cone structure are coated with red copper using coating process, and the thickness of spraying is not less than 0.2mm.
3. safety valve according to claim 1, which is characterized in that the valve seat is in contact with the stopper structure of the spool
End face be provided with end-face seal ring, when the stopper structure of the poppet head is bonded with the valve seat with the end-face seal ring
Contact sealing；The outer wall of the valve seat is provided with boss, and the helicitic texture setting of the valve seat outer wall is in the boss to described
The region of second opening of valve seat is provided with end-face seal ring towards the side of second opening on the boss, described
When safety valve is fixed on the oil-filled cabinet by the helicitic texture, end-face seal ring on the boss with it is described oil-filled
Cabinet contact sealing；The inner wall of the valve seat is provided with damping cover plate for sealing circle by the conical surface, and the damping cover board is arranged in institute
Sealing is contacted with the damping cover plate for sealing circle when stating in the cavity of valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053652.4A CN109555882A (en) | 2019-01-21 | 2019-01-21 | A kind of safety valve suitable for oil-filled cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053652.4A CN109555882A (en) | 2019-01-21 | 2019-01-21 | A kind of safety valve suitable for oil-filled cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109555882A true CN109555882A (en) | 2019-04-02 |
Family
ID=65873324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910053652.4A Pending CN109555882A (en) | 2019-01-21 | 2019-01-21 | A kind of safety valve suitable for oil-filled cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109555882A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701309A (en) * | 2019-09-03 | 2020-01-17 | 陕西蓝箭航天技术有限公司 | Add row valve device and attitude and orbit accuse driving system |
| CN113294539A (en) * | 2021-05-26 | 2021-08-24 | 中国船舶科学研究中心 | Submersible oil-filled tank with compensating ground contact pin and method of operating same |
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| CN2385180Y (en) * | 1999-06-21 | 2000-06-28 | 张俊岩 | Small bore pressure release valve |
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| FR2896024A1 (en) * | 2006-01-09 | 2007-07-13 | Mann & Hummel Gmbh | Cap e.g. oil filler cap, for closing component of motor vehicle, has pressure relief valve opening median boring when pressure in inner part of component to be closed is higher than preset value, and sealing ring directly molded on valve |
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| CN204226765U (en) * | 2014-10-14 | 2015-03-25 | 北京谊安医疗***股份有限公司 | A kind of spring safety valve and Anesthesia machine |
| CN104653829A (en) * | 2013-11-25 | 2015-05-27 | 西安立元智能科技有限公司 | Novel embedded safety valve of lifting pump of dump truck |
| CN107076326A (en) * | 2014-08-28 | 2017-08-18 | 博格华纳瑞典公司 | Air bleeding valve |
| CN108626449A (en) * | 2018-06-26 | 2018-10-09 | 贵州航天控制技术有限公司 | A kind of safe valve core of high-reliability low-pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385180Y (en) * | 1999-06-21 | 2000-06-28 | 张俊岩 | Small bore pressure release valve |
| CN2750135Y (en) * | 2004-11-23 | 2006-01-04 | 秦皇岛冶金机械有限公司 | General purpose valve |
| FR2896024A1 (en) * | 2006-01-09 | 2007-07-13 | Mann & Hummel Gmbh | Cap e.g. oil filler cap, for closing component of motor vehicle, has pressure relief valve opening median boring when pressure in inner part of component to be closed is higher than preset value, and sealing ring directly molded on valve |
| CN201246502Y (en) * | 2008-09-01 | 2009-05-27 | 西安格威石油仪器有限公司 | Safe oil relief valve |
| US20110073199A1 (en) * | 2009-09-29 | 2011-03-31 | Stocker Jr Theodore Arthur | Vacuum relief valve and method for assembling the same |
| CN104653829A (en) * | 2013-11-25 | 2015-05-27 | 西安立元智能科技有限公司 | Novel embedded safety valve of lifting pump of dump truck |
| CN107076326A (en) * | 2014-08-28 | 2017-08-18 | 博格华纳瑞典公司 | Air bleeding valve |
| CN204226765U (en) * | 2014-10-14 | 2015-03-25 | 北京谊安医疗***股份有限公司 | A kind of spring safety valve and Anesthesia machine |
| CN108626449A (en) * | 2018-06-26 | 2018-10-09 | 贵州航天控制技术有限公司 | A kind of safe valve core of high-reliability low-pressure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701309A (en) * | 2019-09-03 | 2020-01-17 | 陕西蓝箭航天技术有限公司 | Add row valve device and attitude and orbit accuse driving system |
| CN110701309B (en) * | 2019-09-03 | 2020-10-16 | 陕西蓝箭航天技术有限公司 | Add row valve device and attitude and orbit accuse driving system |
| CN113294539A (en) * | 2021-05-26 | 2021-08-24 | 中国船舶科学研究中心 | Submersible oil-filled tank with compensating ground contact pin and method of operating same |
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Application publication date: 20190402 |
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| WD01 | Invention patent application deemed withdrawn after publication |