CN109114341A - A kind of liquid cooling system and its quick coupling female connector - Google Patents
A kind of liquid cooling system and its quick coupling female connector Download PDFInfo
- Publication number
- CN109114341A CN109114341A CN201710480744.1A CN201710480744A CN109114341A CN 109114341 A CN109114341 A CN 109114341A CN 201710480744 A CN201710480744 A CN 201710480744A CN 109114341 A CN109114341 A CN 109114341A
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing bar
- tubular shell
- sealing ring
- bar
- 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.)
- Granted
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
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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
-
- 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
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
- F28F11/02—Arrangements for sealing leaky tubes and conduits using obturating elements, e.g. washers, inserted and operated independently of each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
Abstract
The present invention relates to a kind of liquid cooling system and its quick coupling female connectors.The liquid cooling system includes refrigerating module, quick coupling female connector is set on refrigerating module, the quick coupling female connector includes tubular shell, sealing bar is installed in tubular shell, sealing ring is movably installed between the inserted terminal and sealing bar of tubular shell, the sealing bar is axially mobile to be assemblied in tubular shell, both ends are also equipped in tubular shell to be respectively acting on sealing bar and sealing ring and sealing ring is made to be maintained at the pressure spring at the position for blocking the gap between sealing bar and tubular shell, sealing bar overcomes pressure spring active force when internal fluid pressure is greater than the set value and is displaced outwardly and releases the sealing matching relationship with sealing ring.Quick coupling female connector in the present invention can realize releasing pressure automatically by the axial movement of sealing bar when refrigerating module internal pressure is increased, and prevent refrigerating module from bursting because of superpressure, and then improve the service life of liquid cooling system.
Description
Technical field
The present invention relates to a kind of liquid cooling system and its quick coupling female connectors.
Background technique
In liquid cooling system, quick coupling using very extensive, this is that one kind does not need to can be achieved with pipe by tool
Connector road connection or disconnected, brings great convenience to the installation and maintenance of liquid cooling system.Quick coupling generally comprises public access
The structure of head and female connector, female connector is general as shown in Figure 1, including tubular shell 1, is fixedly installed with sealing in tubular shell 1
Bar 2 is provided with sealing ring 3 between sealing bar 2 and tubular shell 1, between tubular shell 1 and sealing ring 3, sealing bar 2 and sealing
Sealing ring is provided between ring 3, the sealing ring between tubular shell 1 and sealing ring 3 is close on tubular shell 1 positioned at being arranged in
In seal mounting groove, the sealing ring between sealing bar 2 and sealing ring 3 is located in the sealing ring mounting groove in sealing bar, sealing ring 3
Pressure spring 6 is provided between guide rod.In the non-grafting of female connector, sealing ring 3 is by the pressure spring pushing tow by sealing bar 2 and tubular
Opened gap between shell 1 blocks and then realizes the self-sealing of female connector；In female connector grafting, sealing ring 3 is by pin end
On corresponding construction pushing tow overcome the elastic force of spring to be moved to inside tubular shell, release between sealing bar 2 and tubular shell 1
Opened gap closure, make to be connected between pin end and female connector.
Liquid cooling system in actual use the problem is that: firstly, system run or debug when, it is often necessary to
Liquid cooled module in system is safeguarded, but after shutting down in liquid cooled module pressure may not be able to complete removal, liquid cooling at this time
When transporting storage, when environment temperature increases, the expansion of inside modules heated liquid, pressure increased dramatically module, and refrigerating module
On the above-mentioned female connector that uses due to being constantly in self-sealing state, cause the pressure in refrigerating module that cannot release and support in time
Broken refrigerating module；Secondly, liquid cooling system is run under rated pressure, system is likely to occur pressure supply pressure transient, when pressure is prominent
Become larger when the safe pressure of module, refrigerating module can be damaged, bulge phenomenon because pressure cannot release in time.
Summary of the invention
The purpose of the present invention is to provide one kind to be able to achieve self-relieving quick coupling female connector；The purpose of the present invention is also
It is to provide a kind of liquid cooling system using above-mentioned quick coupling female connector.
To achieve the above object, a kind of technical solution of quick coupling female connector of the present invention is: a kind of quick coupling mother connects
Head, including tubular shell are equipped with sealing bar in tubular shell, are movably installed between the inserted terminal and sealing bar of tubular shell
Sealing ring, the sealing bar is axially mobile to be assemblied in tubular shell, and both ends are also equipped in tubular shell and are made respectively
At the position in the gap for being maintained at sealing ring between closure sealing bar and tubular shell
Pressure spring, sealing bar overcome pressure spring active force when internal fluid pressure is greater than the set value and are displaced outwardly and release and sealing ring
Seal matching relationship.
The pressure release passage of connection sealing ring mounting groove thereon and sealing bar outer end face is additionally provided in sealing bar, on sealing ring
It is equipped with when sealing bar is displaced outwardly for the sealing ring in sealing bar in the front end of the sealing cooperation section with sealing bar in liquid pressure
The lower radial distending of power effect and then the inside and outside flared section for realizing pressure release of conducting quick coupling female connector.
The pressure release passage is, communication seals circle mounting groove front side cell wall parallel with sealing rod axis and sealing bar front end face
Through-hole.
The mounting groove for sealing bar activity installation, the rear end of mounting groove are provided on the rear inside face of the tubular shell
Equipped with the Stop structure for avoiding sealing bar from deviating from from tubular shell rear end.
To achieve the above object, a kind of technical solution of liquid cooling system of the invention is: a kind of liquid cooling system, including cooling
Module, quick coupling female connector is arranged on refrigerating module, and the quick coupling female connector includes tubular shell, peace in tubular shell
Equipped with sealing bar, sealing ring is movably installed between the inserted terminal and sealing bar of tubular shell, the sealing bar is along axially-displaceable
Dynamic is assemblied in tubular shell, and both ends are also equipped in tubular shell and is respectively acting on sealing bar and sealing ring and makes to seal
Ring is maintained at the pressure spring at the position for blocking the gap between sealing bar and tubular shell, and sealing bar is greater than in internal fluid pressure
Pressure spring active force is overcome when setting value and is displaced outwardly and is released the sealing matching relationship with sealing ring.
The pressure release passage of connection sealing ring mounting groove thereon and sealing bar outer end face is additionally provided in sealing bar, on sealing ring
It is equipped with when sealing bar is displaced outwardly for the sealing ring in sealing bar in the front end of the sealing cooperation section with sealing bar in liquid pressure
The lower radial distending of power effect and then the inside and outside flared section for realizing pressure release of conducting quick coupling female connector.
The pressure release passage is, communication seals circle mounting groove front side cell wall parallel with sealing rod axis and sealing bar front end face
Through-hole.
The mounting groove for sealing bar activity installation, the rear end of mounting groove are provided on the rear inside face of the tubular shell
Equipped with the Stop structure for avoiding sealing bar from deviating from from tubular shell rear end.
The beneficial effects of the present invention are: the quick coupling female connector in the present invention is in actual use, in non-grafting
When, sealing ring is stuck in the gap between sealing bar and tubular shell by pressure spring pushing tow, when the pressure in refrigerating module is in just
Usually, sealing bar is located at rearward position to ordinary water under the thrusting action of pressure spring, and sealing bar front end and sealing ring cooperate cylindrical case
The leading inlet of body blocks, and the self-sealing of quick coupling female connector is realized, when the pressure rise in refrigerating module is greater than the set value
When, the elastic force of pressure spring is overcome to be displaced outwardly and then release under the thrusting action of fluid pressure for sealing bar and the sealing of sealing ring is matched
Conjunction relationship, so that the outwardly and inwardly conducting of quick coupling female connector, realizes the releasing pressure automatically of quick coupling female connector.Work as cooling
After pressure recovery to normal level in module, sealing bar moves backward under the elastic force of pressure spring again, realizes self-sealing.Pass through
This quick coupling female connector with releasing pressure automatically ability is set on refrigerating module, it can be in refrigerating module inner overpressure
Timely pressure release, improves the service life of entire liquid cooling system at the phenomenon that preventing refrigerating module from bursting because of inner overpressure.
Further, flared section is set in the front end of sealing ring, pressure release passage is correspondingly arranged in sealing bar, in sealing bar
The inside and outside realization pressure release of quick coupling female connector can be connected when nose motion to the flared section, the setting of the structure can
So that the front end of sealing bar can carry out pressure release when not exclusively stretching out sealing ring, prevent the sealing ring in sealing bar in pressure release
The phenomenon that falling off from sealing bar in journey.
Detailed description of the invention
Fig. 1 is the structure chart of quick coupling female connector in background technique；
Fig. 2 is the structure chart of quick coupling female connector in a kind of liquid cooling system specific embodiment 1 of the present invention；
Fig. 3 is the enlarged drawing of dotted portion in Fig. 2；
In figure: 1, tubular shell；2, sealing bar；21, positioning disk；22, pressure release passage；3, sealing ring；4, the first sealing ring；5,
Second sealing ring；6, pressure spring；7, circlip.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
A kind of specific embodiment 1 of liquid cooling system of the invention, including refrigerating module are provided with fast quick access on refrigerating module
Head female connector, the specific structure of the quick coupling female connector is as shown in Fig. 2, include tubular shell 1, the inside of tubular shell 1
In three sections of stepped hole shapes, inserted terminal is gradually increased backward without leave in the hole of stepped hole, shape between front end path section and middle part ladder section
At front end cascaded surface, which is inclined-plane, and rear end cascaded surface is formed between middle part ladder section and rear end major diameter section.
Axis is provided with sealing bar 2 in tubular shell 1, seal rod rear end positioning disk 21 be located at tubular shell 1 after
It holds in major diameter section, rear end major diameter section constitutes the mounting groove installed for sealing bar activity, before the front side of positioning disk 21 is mounted slot
Side channel wall, i.e. rear end cascaded surface block, the rear side of positioning disk 21 are fixedly installed on the gear of the circlip 7 on mounting groove rear inside face
Only, positioning disk 21 is enabled to move between the front side cell wall and circlip 7 of mounting groove along axis guide, circlip composition avoids sealing
The front side cell wall composition of the rear side Stop structure that bar is deviate from from tubular shell rear end, mounting groove avoids sealing bar before tubular shell
Hold the front side Stop structure of abjection.
It is provided with sealing ring 3 between the leading portion inserted terminal and tubular shell 1 of sealing bar 2, is set on the medial surface of tubular shell 1
It is equipped with the first sealing ring mounting groove, is provided in the first sealing ring mounting groove for realizing close between tubular shell 1 and sealing ring 3
First sealing ring 4 of envelope is provided with the second sealing ring mounting groove, the second sealing ring mounting groove on the leading portion inserted terminal of sealing bar 2
In be provided with for realizing the second sealing ring 5 sealed between sealing bar 2 and sealing ring 3, in addition, on the inserted terminal of sealing bar 2
It is additionally provided with the pressure release passage 22 of connection the second sealing ring mounting groove and sealing bar outer end face, in the present embodiment, the pressure release passage
22 be parallel with 2 axis of sealing bar, cell wall and 2 front end face of sealing bar on front side of the second sealing ring mounting groove of connection through-hole.
Pressure spring 6 is arranged in sealing bar 2, which is located between 2 rear alignment disk 21 of sealing bar and sealing ring 3, is used for
Pushing tow sealing ring 3 is stuck in sealing ring 3 between sealing bar 2 and tubular shell 1 opening between sealing bar 2 and tubular shell 1
Gap blocks, and realizes self-sealing.
It is provided on the rear end lateral surface of the sealing ring 3 for cooperating with the front end cascaded surface block on tubular shell 1
And then the annular convex platform for preventing sealing ring 3 from deviating from from the front end of tubular shell 1.The inner hole of sealing ring 3 is small in median pore radius, both ends
The dumbbell shaped that aperture becomes larger, wherein the intermediate path section of sealing ring 3 is for blocking between sealing bar 2 and tubular shell 1
The sealing in import gap cooperates section, and the part that front end aperture becomes larger is that the second sealing ring 5 is supplied when sealing bar 2 is displaced outwardly
Radial distending and then the inside and outside flared section for realizing pressure release of conducting quick coupling female connector under fluid pressure effect.
In actual use, in non-grafting, sealing ring 3 is stuck in the quick coupling female connector by 6 pushing tow of pressure spring
Between sealing bar 2 and tubular shell 1, when the pressure in refrigerating module is at a normal level, 2 rear alignment disk 21 of sealing bar exists
It is contacted under the thrusting action of pressure spring 6 with circlip 7, entire sealing bar is made to be located at most rear side, the second sealing ring 5 of 2 front end of sealing bar
At the sealing cooperation section of sealing ring 3, self-sealing is realized by the second sealing ring 5 between sealing bar 2 and sealing ring 3 at this time.
When the pressure rise in refrigerating module, sealing bar 2 overcomes the elastic force of pressure spring 6 to be moved out under the thrusting action of fluid pressure
It is dynamic, drive the second sealing ring 5 thereon to move at the front end flared section of sealing ring 3, at this point, the second sealing ring 5 is by high pressure liquid
Body struts, and outside is still attached on sealing ring 3, and passage gaps are conceded in inside, so that the second sealing ring mounting groove and pressure release passage
22 are collectively formed the pressure release passage for the liquid outflow in refrigerating module, realize releasing pressure automatically.When the pressure in refrigerating module is extensive
It answers to normal level, sealing bar 2 moves backward under the elastic force of pressure spring 6 again, and the second sealing ring 5 is moved to sealing ring 3
Sealing cooperation fragment position at, realize self-sealing.
Liquid cooling system of the invention, can be by the design adjustment refrigerating module to pressure spring 6 when carrying out releasing pressure automatically
Pressure set points.
Liquid cooling system of the invention, setting has the quick coupling female connector of releasing pressure automatically function on refrigerating module, can
Timely pressure release, prevents refrigerating module from damaging because internal pressure is excessive when pressure increases in refrigerating module, and then improves liquid cooling
The service life of system.Only have in the quick coupling female connector of 3mm in addition, equivalent latus rectum is arranged in pressure relief, both met
User installation space limited problem, and pressure leak process is gentle, avoids and makes because of pressure jump to user's liquid cooling system
At destruction.
A kind of specific embodiment 2 of liquid cooling system of the invention and the difference of specific embodiment 1 are, on the sealing ring
It is not provided with flared section, is also not provided with pressure release passage in sealing bar, increases the axial movement distance of sealing bar, at this point, in cooling mould
The fully extended sealing ring in the front end of sealing bar releases the sealing matching relationship with sealing ring in turn when block inner overpressure, and realization is let out
Pressure.
A kind of specific embodiment 3 of liquid cooling system of the invention and the difference of specific embodiment 1 be, the pressure release passage
22 be the L shape hole for being connected to the second sealing ring mounting groove slot bottom and 2 front end face of sealing bar.
A kind of specific embodiment of quick coupling female connector of the invention, specific structure and a kind of above-mentioned liquid cooling system are each
The structure of quick coupling female connector in embodiment is identical, and details are not described herein again.
Claims (8)
1. a kind of quick coupling female connector, including tubular shell, sealing bar, the inserted terminal of tubular shell are installed in tubular shell
Sealing ring is movably installed between sealing bar, it is characterised in that: the sealing bar is axially mobile to be assemblied in cylindrical case
In vivo, both ends are also equipped in tubular shell to be respectively acting on sealing bar and sealing ring and sealing ring is made to be maintained at closure sealing
Pressure spring at the position in the gap between bar and tubular shell, sealing bar overcome pressure spring when internal fluid pressure is greater than the set value
Active force and be displaced outwardly and then release and the sealing matching relationship of sealing ring.
2. quick coupling female connector according to claim 1, it is characterised in that: be additionally provided with connection thereon close in sealing bar
The pressure release passage of seal mounting groove and sealing bar outer end face is equipped on sealing ring in the front end of the sealing cooperation section with sealing bar
For the sealing ring in sealing bar, quick coupling mother is connected in radial distending in turn under fluid pressure effect when sealing bar is displaced outwardly
The inside and outside flared section for realizing pressure release of connector.
3. quick coupling female connector according to claim 2, it is characterised in that: the pressure release passage be and sealing rod axis
In parallel, the through-hole of communication seals circle mounting groove front side cell wall and sealing bar front end face.
4. quick coupling female connector according to claim 1 or 2 or 3, it is characterised in that: in the rear end of the tubular shell
The mounting groove for sealing bar activity installation is provided on side, the rear end of mounting groove, which is equipped with, avoids sealing bar from tubular shell rear end
The Stop structure of abjection.
5. a kind of liquid cooling system, including refrigerating module, quick coupling female connector is set, the quick coupling mother connects on refrigerating module
Head includes tubular shell, is equipped with sealing bar in tubular shell, is movably installed between the inserted terminal and sealing bar of tubular shell
Sealing ring, it is characterised in that: the sealing bar is axially mobile to be assemblied in tubular shell, is also equipped in tubular shell
Both ends are respectively acting on sealing bar and sealing ring and sealing ring are made to be maintained at the gap blocked between sealing bar and tubular shell
Position at pressure spring, sealing bar overcomes pressure spring active force when internal fluid pressure is greater than the set value and is displaced outwardly and releases
With the sealing matching relationship of sealing ring.
6. liquid cooling system according to claim 5, it is characterised in that: be additionally provided with the sealing ring peace of connection thereon in sealing bar
The pressure release passage of tankage and sealing bar outer end face is equipped in sealing bar on sealing ring in the front end of the sealing cooperation section with sealing bar
For the sealing ring in sealing bar, radial distending is connected in quick coupling female connector in turn under fluid pressure effect when being displaced outwardly
Portion and the external flared section for realizing pressure release.
7. liquid cooling system according to claim 6, it is characterised in that: the pressure release passage be with sealing rod axis it is parallel,
The through-hole of cell wall and sealing bar front end face on front side of communication seals circle mounting groove.
8. according to liquid cooling system described in claim 5 or 6 or 7, it is characterised in that: on the rear inside face of the tubular shell
It is provided with the mounting groove for sealing bar activity installation, the rear end of mounting groove, which is equipped with, avoids sealing bar from deviating from from tubular shell rear end
Stop structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710480744.1A CN109114341B (en) | 2017-06-22 | 2017-06-22 | Liquid cooling system and quick-operation joint female joint thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710480744.1A CN109114341B (en) | 2017-06-22 | 2017-06-22 | Liquid cooling system and quick-operation joint female joint thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109114341A true CN109114341A (en) | 2019-01-01 |
| CN109114341B CN109114341B (en) | 2021-07-30 |
Family
ID=64732732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710480744.1A Active CN109114341B (en) | 2017-06-22 | 2017-06-22 | Liquid cooling system and quick-operation joint female joint thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114341B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750187A (en) * | 2020-07-03 | 2020-10-09 | 中国电子科技集团公司第十四研究所 | Novel blind plug of piston |
| CN113819325A (en) * | 2021-08-23 | 2021-12-21 | 中航光电科技股份有限公司 | Quick connector with pressure relief function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20116899U1 (en) * | 2001-10-15 | 2001-12-13 | Metallwerke Otto Dingerkus Gmb | Flow switch |
| CN202251207U (en) * | 2011-09-29 | 2012-05-30 | 攀钢集团钢铁钒钛股份有限公司 | Hydraulic cylinder |
| CN202834511U (en) * | 2012-10-09 | 2013-03-27 | 宁波乾豪金属制品有限公司 | Pipe connection |
| CN104565638A (en) * | 2014-12-16 | 2015-04-29 | 中航光电科技股份有限公司 | Quick coupling assembly |
| CN204878906U (en) * | 2015-06-25 | 2015-12-16 | 慈溪市美源净水设备有限公司 | A difunctional valve for pressure water storage bucket |
-
2017
- 2017-06-22 CN CN201710480744.1A patent/CN109114341B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20116899U1 (en) * | 2001-10-15 | 2001-12-13 | Metallwerke Otto Dingerkus Gmb | Flow switch |
| CN202251207U (en) * | 2011-09-29 | 2012-05-30 | 攀钢集团钢铁钒钛股份有限公司 | Hydraulic cylinder |
| CN202834511U (en) * | 2012-10-09 | 2013-03-27 | 宁波乾豪金属制品有限公司 | Pipe connection |
| CN104565638A (en) * | 2014-12-16 | 2015-04-29 | 中航光电科技股份有限公司 | Quick coupling assembly |
| CN204878906U (en) * | 2015-06-25 | 2015-12-16 | 慈溪市美源净水设备有限公司 | A difunctional valve for pressure water storage bucket |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750187A (en) * | 2020-07-03 | 2020-10-09 | 中国电子科技集团公司第十四研究所 | Novel blind plug of piston |
| CN113819325A (en) * | 2021-08-23 | 2021-12-21 | 中航光电科技股份有限公司 | Quick connector with pressure relief function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109114341B (en) | 2021-07-30 |
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