CN108758044A - Deck foam system breather valve - Google Patents
Deck foam system breather valve Download PDFInfo
- Publication number
- CN108758044A CN108758044A CN201810826349.9A CN201810826349A CN108758044A CN 108758044 A CN108758044 A CN 108758044A CN 201810826349 A CN201810826349 A CN 201810826349A CN 108758044 A CN108758044 A CN 108758044A
- Authority
- CN
- China
- Prior art keywords
- pressing plate
- positive pressure
- positive
- push piece
- housing part
- 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.)
- Pending
Links
- 239000006260 foam Substances 0.000 title claims abstract description 45
- 238000007789 sealing Methods 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 10
- 238000005498 polishing Methods 0.000 claims description 6
- 235000013351 cheese Nutrition 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
- F16K17/196—Equalising valves predominantly for tanks spring-loaded
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
- A62C13/76—Details or accessories
Abstract
The present invention relates to a kind of deck foam system breather valves, and by the way that deck foam system breather valve is arranged, when foam tank interior negative pressure, external air pressure is more than tank interior air pressure, and negative pressure push piece moves downward, and extraneous air enters foam tank interior；When foam tank interior positive pressure, external air pressure is less than tank interior air pressure, and positive pressure push piece moves upwards, and inner air is discharged from foam tank interior, effectively realizes the pressure balance in foam tank body between outside.
Description
Technical field
The present invention relates to a kind of breathing equipment more particularly to a kind of deck foam system breather valves.
Background technology
Bulk chemicals tanker freight is mostly flammable explosive toxic dangerous material at present, once fire occurs
Explosion, which can occur, to be caused to reveal, and is caused to hull safety, personal safety and marine environment badly damaged therefore existing scattered
Dress chemical liquid freighter is generally fitted provided with fixed deck foam fire extinguishing system, to ensure ship, personnel and marine environment
Safety, thus for deck foam system, internal pressure is excessive, be easy to cause the self-destruction of foam fire-fighting material, no
It can effectively put out a fire, even cause chemical spill when serious, there are security risk, internal-internal pressure is too small, and foam cannot
Play the role of fire extinguishing by pressure ejection, effect failure of putting out a fire.Therefore need setting one kind that can automatically adjust foam system in real time
The respiratory regulation device of system external and internal pressure.
Invention content
The technical problem to be solved by the present invention is to：For the deficiencies in the prior art and defect, a kind of deck is provided
Foaming system breather valve.
The technical solution adopted by the present invention to solve the technical problems is：
Deck foam system breather valve, it is characterised in that：The breather valve includes shell, and the shell is in semi-enclosed cylinder
Tubular, cylindrical tube shape are circumferentially equidistantly uniformly provided with several gaps, and the shell includes being connected to one from top to bottom
The upper housing part of body, middle shell portion and lower housing part, the outer diameter and internal diameter of the upper housing part are both greater than the outer diameter and internal diameter of the lower housing part,
The outer diameter in the middle shell portion is identical as the outer diameter of the upper housing part, the internal diameter phase of the internal diameter and the lower housing part in the middle shell portion
Together；Be provided with installation bulge loop below the outer wall of the lower housing part, the shell by install bulge loop, lower housing part outer wall and
It is abutted with foam tank body on the downside of the outer wall in middle shell portion；It is provided with card slot above the inner wall of the upper housing part, positive pressure pressing plate is located at institute
Upper housing part inner upper is stated, the outer wall of the positive pressure pressing plate is circumferentially provided with strip, and the card slot cooperates with the strip
To realize that positive pressure pressing plate is fixed inside housings；Sleeve is placed on positive pressure pressing plate center inside through-hole and can be opposite
Positive pressure pressing plate is axially moved, and cheese head screw is threaded with above sleeve inner, sleeve inner lower section is by hex nut and bears
Pressure push piece is fixedly connected, and the negative pressure push piece includes being connected with each other the interconnecting piece, middle part and pressing portion being integrated from top to bottom,
Positioned at the periphery of the pressing portion and positioned at the middle shell portion outer wall on the downside of be provided with positive pressure push piece, the positive pressure pressing plate with
It is fixedly installed positive pressing spring between the positive pressure push piece, be fixed on the periphery of the interconnecting piece and is located at the hex nut
Lower section be provided with negative pressure pressing plate, be fixedly installed negative pressure spring between the negative pressure pressing plate and the positive pressure push piece.
Further, the pressing portion of the negative pressure push piece include radially projecting convex tooth portion and under convex tooth portion, under described
The radial dimension in convex tooth portion is more than the radial radius in the convex tooth portion, the convex tooth portion and under be formed with portion between convex tooth portion
First seal groove of cyclotomy arc is provided with the first sealing ring in first seal groove.
Further, conical through-hole, the pressing portion and first sealing ring position are offered inside the positive pressure push piece
In the inside of the conical through-hole, the upper surface of the positive pressure push piece offers installation annular groove, the lower surface of the positive pressure push piece
The second seal groove is offered, the second sealing ring is provided in second seal groove.
Further, positive pressure pressing plate center offers through-hole and lower cavity, and the upper end of the positive pressing spring is fixed
It is set to lower cavity upper wall, the lower end of the positive pressing spring is fixedly installed in installation annular groove, the upper surface of the positive pressure pressing plate
Offer clamping slot.
Further, the negative pressure pressing plate include it is radial from inside to outside and be molded as one pressing plate end, vertically extend end
And end is protruded horizontally up, it pressing plate end and vertically extends between end and vertically extends end and protrude horizontally up mutually at a right angle between end
And connected using fillet, end is protruded horizontally up positioned at the top at pressing plate end, and pressing plate end center offers pressing plate through-hole.
Further, first sealing ring and second sealing ring select nitrile rubber to make.
Further, it is 6 that the positive pressing spring, which selects number of active coils, the resetting spring that number of total coils is 8, and the positive pressure bullet
Spring is by swirling flows and surface polishing treatment for 24 hours under qualitative processing of shaping, 65 degrees Celsius.
Further, it is 4 that the negative pressure spring, which selects number of active coils, the resetting spring that number of total coils is 6, and the negative pressure bullet
Spring is by swirling flows and surface polishing treatment for 24 hours under qualitative processing of shaping, 65 degrees Celsius.
The beneficial effects of the invention are as follows：
（1）By the way that deck foam system breather valve is arranged, when foam tank interior negative pressure, external air pressure is more than tank body
Internal air pressure, negative pressure push piece move downward, and extraneous air enters foam tank interior；When foam tank interior positive pressure,
External air pressure is less than tank interior air pressure, and positive pressure push piece moves upwards, and inner air is discharged from foam tank interior,
Effectively realize the pressure balance in foam tank body between outside.
（2）Under the radial dimension in convex tooth portion be more than the radial radius in convex tooth portion, with the cone that is opened up inside positive pressure push piece
Shape through-hole, which cooperates, realizes sealing, convex tooth portion and under the close for accommodating first of partial arc shape is formed between convex tooth portion
First seal groove of seal is further ensured that sealing effect, only when tubular body air pressure more than positive pressure threshold value and is less than negative pressure
Gas exchanges are just realized when threshold value；
（3）Conical through-hole is offered inside positive pressure push piece, increases the base surface with tank interior gas, increases air pressure inside mistake
The acting surface being applied to when high on positive pressure push piece, the lower surface of positive pressure push piece offer the second sealing for accommodating the second sealing ring
Slot further realizes sealing effect, and negative pressure push piece moves downward when preventing air pressure inside too low, and extraneous gas enters tank interior
When from positive pressure push piece downside escape.
（4）Positive pressure pressing plate center offers through-hole and lower cavity, and the upper end of positive pressing spring is fixedly installed on lower cavity
The lower end of wall, positive pressing spring is fixedly installed in installation annular groove, so that positive pressing spring is in the environment of a relative closure
It realizes and is axially moved, avoid excessive itself service life of influence of positive pressing spring diameter distortion of image amount, the upper surface of positive pressure pressing plate opens up
There is clamping slot to be convenient for positive pressure pressing plate grip safeguarding to replace conducive to the later stage.
（5）Negative pressure pressing plate include it is radial from inside to outside and be molded as one pressing plate end, vertically extend end and level is stretched
Outlet, pressing plate end and vertically extends between end and vertically extends end and protrude horizontally up mutually at a right angle between end and use fillet
Connection protrudes horizontally up end positioned at the top at pressing plate end, which, can be to avoid outer while ensureing effectively to push negative pressure spring
The radial excessively deformation of the positive pressing spring in portion is to interfere internal negative pressure spring.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of structural schematic diagram of deck foam system breather valve of the present invention；
Fig. 2 is a kind of structural schematic diagram of deck foam system breathing valve housing of the present invention；
Fig. 3 is a kind of structural schematic diagram of the positive pressure pressing plate of deck foam system breather valve of the present invention；
Fig. 4 is a kind of structural schematic diagram of the negative pressure pressing plate of deck foam system breather valve of the present invention；
Fig. 5 is a kind of structural schematic diagram of the positive pressure push piece of deck foam system breather valve of the present invention；
Fig. 6 is a kind of structural schematic diagram of the negative pressure push piece of deck foam system breather valve of the present invention.
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.
As shown in figures 1 to 6, deck foam system breather valve, breather valve include shell 1, and shell 1 is in semi-enclosed cylinder
Tubular, cylindrical tube shape are circumferentially equidistantly uniformly provided with several gaps 1d, and shell 1 includes being connected with each other to be integrated from top to bottom
Upper housing part 1a, middle shell portion 1b and the outer diameter and internal diameter of lower housing part 1c, upper housing part 1a be both greater than the outer diameter and internal diameter of lower housing part 1c,
The outer diameter of middle shell portion 1b is identical as the outer diameter of upper housing part 1a, and the internal diameter of middle shell portion 1b is identical as the internal diameter of lower housing part 1c；Lower housing part
Installation bulge loop 1f is provided with below the outer wall of 1c, shell 1 passes through the outer wall for installing bulge loop 1f, lower housing part 1c and middle shell portion 1b
Outer wall on the downside of abutted with foam tank body 13；It is provided with card slot 1e above the inner wall of upper housing part 1a, positive pressure pressing plate 2 is located at upper housing part
The outer wall of 1a inner uppers, positive pressure pressing plate 2 is circumferentially provided with strip 2c, and strip 2c cooperates with card slot 1e to realize positive pressure
Pressing plate 2 is fixed inside shell 1；Sleeve 4 is placed on 2 center of positive pressure pressing plate inside through-hole 2a and can be with respect to positive pressure pressing plate 2
It is axially moved, 4 inner upper of sleeve is threaded with cheese head screw 3, and 4 lower inside of sleeve is pushed away by hex nut 5 with negative pressure
The thread segment 6d of part 6 achieves a fixed connection, and negative pressure push piece 6 includes being connected with each other the interconnecting piece 6a being integrated, centre from top to bottom
Portion 6b and pressing portion 6c is provided with positive pressure push piece 7, just positioned at the periphery of pressing portion 6c and on the downside of the outer wall of middle shell portion 1b
It is fixedly installed positive pressing spring 10 between pressure pressing plate 2 and positive pressure push piece 7, be fixed on the periphery of interconnecting piece 6a and is located at hexagonal spiral shell
The lower section of mother 5 is provided with negative pressure pressing plate 8, and negative pressure spring 9 is fixedly installed between negative pressure pressing plate 8 and positive pressure push piece 7.
Specifically, the pressing portion 6c of negative pressure push piece 6 include radially projecting convex tooth portion 6e and under convex tooth portion 6f, under convex tooth
The radial dimension of portion 6f is more than the radial radius of convex tooth portion 6e, to cooperate with the conical through-hole opened up inside positive pressure push piece
Realize sealing, convex tooth portion 6e and under the first seal groove 6g of partial arc shape, the first seal groove are formed between convex tooth portion 6f
It is provided with the first sealing ring 11 in 6g, sealing effect is further ensured that, only when tubular body air pressure is more than positive pressure threshold value and low
Gas exchanges are just realized when negative threshold, as a further preference, the first seal groove 6g is 3/4 circular arc, to ensure to stablize
Accommodate the first sealing ring 11.
Specifically, conical through-hole 7a is offered inside positive pressure push piece 7, increases the base surface with tank interior gas, increased
Large inner air pressure is applied to the acting surface on positive pressure push piece when excessively high, pressing portion 6c and the first sealing ring 11 are located at conical through-hole 7a
Inside, the upper surface of positive pressure push piece 7 offers the lower end that installation annular groove 7b is used to install negative pressure spring 9 and positive pressing spring 10,
The lower surface of positive pressure push piece 7 offers in the second seal groove 7c, the second seal groove 7c of partial arc shape and is provided with the second sealing
Circle 12, further realizes sealing effect, negative pressure push piece moves downward when preventing air pressure inside too low, and extraneous gas enters in tank body
It is escaped from positive pressure push piece downside when portion, as a further preference, the second seal groove 7c is 1/2 circular arc, is held with ensureing to stablize
Receive the second sealing ring 12.
Specifically, 2 center of positive pressure pressing plate offers through-hole 2a and lower cavity 2b, the upper end fixed setting of positive pressing spring 10
It is fixedly installed in installation annular groove 7b in the lower end of lower cavity 2b upper walls, positive pressing spring 10, so that positive pressing spring is at one
It realizes and is axially moved in the environment of relative closure, avoid excessive itself service life of influence of positive pressing spring diameter distortion of image amount, positive pressure
The upper surface of pressing plate 2 offers clamping slot 2d, is safeguarded convenient for carrying out gripping to positive pressure pressing plate to be replaced conducive to the later stage.
Specifically, negative pressure pressing plate 8 include it is radial from inside to outside and be molded as one pressing plate end 8a, vertically extend end 8b with
And protrude horizontally up end 8c, pressing plate end 8a and vertically extend end 8b between and vertically extend end 8b and protrude horizontally up end 8c between
It mutually connects at a right angle and using fillet, protrudes horizontally up the top that end 8c is located at pressing plate end 8a, the pressing plate end centers 8a offer pressing plate
Through-hole 8d, the design while ensureing effectively to push negative pressure spring, can to avoid the radial excessively deformation of external positive pressing spring from
And internal negative pressure spring is interfered.
Specifically, the first sealing ring 11 and the second sealing ring 12 select nitrile rubber to make, and heat-resist, wearability is strong,
Cohesive force is strong.
Specifically, it is 6 that positive pressing spring 10, which selects number of active coils, the resetting spring that number of total coils is 8, and positive pressing spring 10 passes through
It shapes qualitative processing, swirling flows and surface polishing treatment for 24 hours under 65 degrees Celsius, to further increase the resistance to compression of spring
Heat resistance.
Specifically, it is 4 that negative pressure spring 9, which selects number of active coils, the resetting spring that number of total coils is 6, and negative pressure spring 9 is by fixed
The qualitative processing of type, swirling flows and surface polishing treatment for 24 hours under 65 degrees Celsius, to which the resistance to compression for further increasing spring is resistance to
Hot property.
By the way that deck foam system breather valve is arranged, when foam tank interior negative pressure, external air pressure is more than tank
Body internal air pressure, extraneous air push cheese head screw 3 to move downward, and cheese head screw 3 drives hex nut 5 by sleeve 4
And negative pressure push piece 6 is synchronized and is moved downward, and compressing negative pressure spring 9 compresses, there are gap between pressing portion 6c and conical through-hole 7a,
Extraneous air enters foam tank interior by the gap；When foam tank interior positive pressure, external air pressure is less than tank body
Internal air pressure, tank interior air push conical through-hole 7a inner walls, positive pressure push piece 7 push up positioned at positive pressure push piece 7 with
Positive pressing spring 10 between positive pressure pressing plate 2 compresses, and positive pressure push piece 7 moves upwards and forms gap, tank body between middle shell portion 1b
Internal air pressure is escaped from the gap, to effectively realize the pressure balance in foam tank body between outside.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (8)
1. deck foam system breather valve, it is characterised in that：The breather valve includes shell（1）, the shell（1）It is sealed in half
The cylindrical tube shape closed, cylindrical tube shape are circumferentially equidistantly uniformly provided with several gaps（1d）, the shell（1）Including from up to
It is lower to be connected with each other the upper housing part being integrated（1a）, middle shell portion（1b）And lower housing part（1c）, the upper housing part（1a）Outer diameter and interior
Diameter is both greater than the lower housing part（1c）Outer diameter and internal diameter, the middle shell portion（1b）Outer diameter and the upper housing part（1a）Outer diameter
It is identical, the middle shell portion（1b）Internal diameter and the lower housing part（1c）Internal diameter it is identical；The lower housing part（1c）Outer wall below
It is provided with installation bulge loop（1f）, the shell（1）By installing bulge loop（1f）, lower housing part（1c）Outer wall and middle shell portion
（1b）Outer wall on the downside of with foam tank body（13）It abuts；The upper housing part（1a）Inner wall above be provided with card slot（1e）, positive pressure
Pressing plate（2）Positioned at the upper housing part（1a）Inner upper, the positive pressure pressing plate（2）Outer wall be circumferentially provided with strip（2c）, institute
State strip（2c）With the card slot（1e）It cooperates to realize positive pressure pressing plate（2）In shell（1）Inside is fixed；Sleeve（4）
It is placed in the positive pressure pressing plate（2）Through-hole on center（2a）It is internal and can be with respect to positive pressure pressing plate（2）It is axially moved, sleeve（4）
Inner upper is threaded with cheese head screw（3）, sleeve（4）Lower inside passes through hex nut（5）With negative pressure push piece（6）It is fixed
Connection, the negative pressure push piece（6）Including being connected with each other the interconnecting piece being integrated from top to bottom（6a）, middle part（6b）And pressing portion
（6c）, it is located at the pressing portion（6c）Periphery and be located at the middle shell portion（1b）Outer wall on the downside of be provided with positive pressure push piece（7）,
In the positive pressure pressing plate（2）With the positive pressure push piece（7）Between be fixedly installed positive pressing spring（10）, it is fixed on the interconnecting piece
（6a）Periphery on and be located at the hex nut（5）Lower section be provided with negative pressure pressing plate（8）, in the negative pressure pressing plate（8）With
The positive pressure push piece（7）Between be fixedly installed negative pressure spring（9）.
2. deck foam system breather valve according to claim 1, it is characterised in that：The negative pressure push piece（6）Push away
Splenium（6c）Including radially projecting convex tooth portion（6e）The convex tooth portion under（6f）, convex tooth portion under described（6f）Radial dimension it is big
In the convex tooth portion（6e）Radial radius, the convex tooth portion（6e）The convex tooth portion under（6f）Between be formed with partial arc
First seal groove of shape（6g）, first seal groove（6g）Inside it is provided with the first sealing ring（11）.
3. deck foam system breather valve according to claim 2, it is characterised in that：The positive pressure push piece（7）It is internal
Offer conical through-hole（7a）, the pressing portion（6c）With first sealing ring（11）Positioned at the conical through-hole（7a）It is interior
Portion, the positive pressure push piece（7）Upper surface offer installation annular groove（7b）, the positive pressure push piece（7）Lower surface offer
Two seal grooves（7c）, second seal groove（7c）Inside it is provided with the second sealing ring（12）.
4. deck foam system breather valve according to claim 3, it is characterised in that：The positive pressure pressing plate（2）Center
Offer through-hole（2a）And lower cavity（2b）, the positive pressing spring（10）Upper end be fixedly installed on lower cavity（2b）Upper wall,
The positive pressing spring（10）Lower end be fixedly installed on installation annular groove（7b）In, the positive pressure pressing plate（2）Upper surface offer
Slot is clamped（2d）.
5. deck foam system breather valve according to claim 1, it is characterised in that：The negative pressure pressing plate（8）Including
It is radial from inside to outside and the pressing plate end that is molded as one（8a）, vertically extend end（8b）And protrude horizontally up end（8c）, pressing plate end
（8a）It is held with vertically extending（8b）Between and vertically extend end（8b）It is held with protruding horizontally up（8c）Between it is mutually at a right angle and use
Fillet connects, and protrudes horizontally up end（8c）Positioned at pressing plate end（8a）Top, the pressing plate end（8a）Center offers pressing plate through-hole
（8d）.
6. deck foam system breather valve according to claim 3, it is characterised in that：First sealing ring（11）With
Second sealing ring（12）Nitrile rubber is selected to make.
7. deck foam system breather valve according to claim 1, it is characterised in that：The positive pressing spring（10）It selects
The resetting spring that number of active coils is 6, number of total coils is 8, and the positive pressing spring（10）By under qualitative processing of shaping, 65 degrees Celsius
Swirling flows and surface polishing treatment for 24 hours.
8. deck foam system breather valve according to claim 1, it is characterised in that：The negative pressure spring（9）It selects
The resetting spring that number of active coils is 4, number of total coils is 6, and the negative pressure spring（9）By under qualitative processing of shaping, 65 degrees Celsius
Swirling flows and surface polishing treatment for 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826349.9A CN108758044A (en) | 2018-07-25 | 2018-07-25 | Deck foam system breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826349.9A CN108758044A (en) | 2018-07-25 | 2018-07-25 | Deck foam system breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108758044A true CN108758044A (en) | 2018-11-06 |
Family
ID=63971559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810826349.9A Pending CN108758044A (en) | 2018-07-25 | 2018-07-25 | Deck foam system breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108758044A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012894A (en) * | 2006-10-19 | 2007-08-08 | 中国北车集团西安车辆厂 | Tank vehicle mounted breathing type safety valve |
| CN200993256Y (en) * | 2006-09-20 | 2007-12-19 | 中国北车集团西安车辆厂 | Respiratory sufety valve |
| CN201028081Y (en) * | 2007-04-29 | 2008-02-27 | 李春爱 | Safety valve of tractor water tank cover |
| CN201739589U (en) * | 2010-07-05 | 2011-02-09 | 浙江佳力科技股份有限公司 | Bidirectional safety valve |
| WO2011157975A1 (en) * | 2010-06-15 | 2011-12-22 | Bright Innovations Limited | Foam pump |
| CN202132564U (en) * | 2011-07-07 | 2012-02-01 | 保一集团有限公司 | Combined type multifunctional safety valve |
| CN103672072A (en) * | 2013-11-27 | 2014-03-26 | 广东万和电气有限公司 | Respiration valve and flat type solar water heater with same |
| CN205956486U (en) * | 2016-06-06 | 2017-02-15 | 温州盛锋流体设备有限公司 | Breather valve |
| CN208619787U (en) * | 2018-07-25 | 2019-03-19 | 江苏华燕船舶装备有限公司 | Deck foam system breather valve |
-
2018
- 2018-07-25 CN CN201810826349.9A patent/CN108758044A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200993256Y (en) * | 2006-09-20 | 2007-12-19 | 中国北车集团西安车辆厂 | Respiratory sufety valve |
| CN101012894A (en) * | 2006-10-19 | 2007-08-08 | 中国北车集团西安车辆厂 | Tank vehicle mounted breathing type safety valve |
| CN201028081Y (en) * | 2007-04-29 | 2008-02-27 | 李春爱 | Safety valve of tractor water tank cover |
| WO2011157975A1 (en) * | 2010-06-15 | 2011-12-22 | Bright Innovations Limited | Foam pump |
| CN201739589U (en) * | 2010-07-05 | 2011-02-09 | 浙江佳力科技股份有限公司 | Bidirectional safety valve |
| CN202132564U (en) * | 2011-07-07 | 2012-02-01 | 保一集团有限公司 | Combined type multifunctional safety valve |
| CN103672072A (en) * | 2013-11-27 | 2014-03-26 | 广东万和电气有限公司 | Respiration valve and flat type solar water heater with same |
| CN205956486U (en) * | 2016-06-06 | 2017-02-15 | 温州盛锋流体设备有限公司 | Breather valve |
| CN208619787U (en) * | 2018-07-25 | 2019-03-19 | 江苏华燕船舶装备有限公司 | Deck foam system breather valve |
Non-Patent Citations (1)
| Title |
|---|
| 周立萍;赵振杰;许洁;信连炜;: "直升机甲板新型泡沫灭火系统的研制", 中国修船, no. 05, 1 October 2017 (2017-10-01) * |
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