CN201810836U - Double-purpose vacuum safety valve - Google Patents
Double-purpose vacuum safety valve Download PDFInfo
- Publication number
- CN201810836U CN201810836U CN2010205291053U CN201020529105U CN201810836U CN 201810836 U CN201810836 U CN 201810836U CN 2010205291053 U CN2010205291053 U CN 2010205291053U CN 201020529105 U CN201020529105 U CN 201020529105U CN 201810836 U CN201810836 U CN 201810836U
- Authority
- CN
- China
- Prior art keywords
- valve plate
- valve
- gas port
- double
- cylindrical shell
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a double-purpose vacuum safety valve which comprises a valve body and a valve plug, wherein the valve body is provided with a columnar shell and a sealing cover plate, a first gas port is formed at the other end of the columnar shell, a second gas port is formed on the side wall of the columnar shell, and a sealing boss is formed on the inner wall of the columnar shell between the two gas ports; thevalve plug consists of a first valve plate assembly and a second valve plate assembly, the first valve plate assembly comprises a first valve plate and a first bias spring, a guide hole and an air vent are formed on the first valve plate, the second valve plate assembly comprises a second valve plate and a second bias spring, and the center of the second valve plate is fixedly connected with a guide post; and the second gas port is positioned on a position close to the edge of the first valve plate. The double-purpose vacuum safety valve has the advantages of being simple in structure and convenient for processing and assembling.
Description
Technical field
The utility model relates to a kind of double-purpose antivoid valve.Specifically a kind of simple in structure, double-purpose antivoid valve of being easy to process.
Background technique
Safety valve be a kind of can be according to the valve body of working pressure automatic on-off, generally be installed on protective system safety on the equipment of locking system or the pipeline.When the equipment of locking system or the pressure in the pipeline surpassed or is lower than specified value, safety valve was in time opened pressure release or pressurization automatically, and assurance equipment and pipeline internal medium pressure try to avert accidents in regulation numerical value.Patent documentation CN2132052Y discloses a kind of vacuum air-channel safety valve, form by threeway, valve rod, bracket, reset spring etc., the two ends in addition of threeway are installed on the gas path pipe respectively, pressure in the controlling plumbing fixtures, when pipeline was blocked the formation negative pressure, ambient air entered pipeline by safety valve, play the effect of vacuum breaker, this model utility is simple in structure, cost is low, and the pipeline pressure in the time of still can only regulating pipe negative pressure does not have the pressure release effect when pipeline pressure is excessive.Patent documentation CN2367853Y discloses a kind of bidirectional relief valve, form valve body by valve seat and valve gap, the inner spool that spool design is made up of internal core print seat, spring and adjustment screw rod by suit in the outer spool of being made up of spool main body, cartridge cover, spring, spring seat is connected to cooperate and is consisted of the combined bidirectional spool, when container inner pressure is excessive, the internal core print seat of spool overcomes spring force and rises mobile, inner spool is opened pressure release, when negative pressure occurring in the container, the spool main body overcomes spring force and moves down outer spool is opened pressurization.This model utility all can be opened when container malleation or negative pressure; collection malleation and negative pressure are protected in one; guarantee that vessel safety stably moves, but the combined bidirectional valve core structure in this model utility form by inner spool and two groups of spools of outer spool, its spool is a piston type; requirement on machining accuracy is higher; in addition, outer spool is a tubular structure, and outer spool upper end is provided with cartridge cover of joining airtight with it; inner spool is arranged at tubular structure inside, and assembling adds the complex process in man-hour.
The model utility content
For this reason; the safety valve function singleness simple in structure that technical problem to be solved in the utility model is to exist in the prior art, bidirectional relief valve assembling processing technology complexity, the high problem of required precision, thereby the double-purpose antivoid valve that provides a kind of simple in structure, the collection malleation that is easy to process and negative pressure to be protected in one.
For solving the problems of the technologies described above, double-purpose antivoid valve of the present utility model, comprise valve body, sealed cover with a cylindrical shell and described cylindrical shell one end of sealing, one first gas port of the other end moulding at described cylindrical shell, on the sidewall of described cylindrical shell, form second gas port, form inwardly outstanding seal boss on the inwall of the described cylindrical shell between described first gas port and described second gas port, the sealing surface of described seal boss is towards an end that is provided with described sealed cover; Spool, form by first valve board assembly and second valve board assembly, it is characterized in that: described first valve board assembly comprise one can along described cylindrical shell endwisely slip and the edge sealably is attached to first valve plate on the described sealing surface of described seal boss and one applies first biasing spring that described sealing surface is pressed at the edge that makes described first valve plate between described first valve plate and described sealed cover, the center of described first valve plate forms a pilot hole, also forms vent on described first valve plate; Described second valve board assembly comprises second valve plate that is arranged between described first valve plate and described first gas port, the center fixation of described second valve plate connects the directional post perpendicular to described second valve plate, described directional post passes described pilot hole slidably, is provided with one between the free end of described first valve plate and described directional post and applies and make described second valve plate be close to second biasing spring of the biasing force of described first valve plate hermetically; Described second gas port is positioned at the position near the described edge of described first valve plate.
Above-mentioned double-purpose antivoid valve, described second gas port is four, is uniformly distributed on the sidewall of described cylindrical shell.
Above-mentioned double-purpose antivoid valve, described first valve plate is provided with the column spring bracket of a upper end open along the edge of its circumference, going to the bottom of described spring bracket contacts with the upper surface of described first valve plate, the sidewall of described spring bracket and the sidewall of described cylindrical shell flexibly connect, and described first biasing spring is arranged between going to the bottom of described spring bracket and the described sealed cover; Described spring bracket sidewall is provided with and the staggered through hole that connects of described second gas port.
Above-mentioned double-purpose antivoid valve, the top of described directional post removably is provided with supporting plate, is provided with described second biasing spring between described supporting plate and described first valve plate.
Above-mentioned double-purpose antivoid valve forms three vents on described first valve plate.
Above-mentioned double-purpose antivoid valve is provided with seal ring between the bottom surface of described seal boss and described first valve plate.
Above-mentioned double-purpose antivoid valve, the upper surface of described second valve plate is provided with annular groove near outer peripheral position, is provided with seal ring in the described annular groove.
Technique scheme of the present utility model has the following advantages compared to existing technology:
Spool described in the utility model is made up of first valve board assembly and second valve board assembly, described first valve board assembly comprise one can along described cylindrical shell endwisely slip and the edge sealably is attached to first valve plate on the described sealing surface of described seal boss and one applies first biasing spring that described sealing surface is pressed at the edge that makes described first valve plate between described first valve plate and described sealed cover, the center of described first valve plate forms a pilot hole, also forms vent on described first valve plate; Described second valve board assembly comprises second valve plate that is arranged between described first valve plate and described first gas port, the center fixation of described second valve plate connects the end perpendicular to the directional post of described second valve plate, described directional post passes described pilot hole slidably, is provided with one between the free end of described first valve plate and described directional post and applies and make described second valve plate be close to second biasing spring of the biasing force of described first valve plate hermetically; The spool main body is made up of valve plate simple in structure, that requirement on machining accuracy is low, and the device that is used for fixing second biasing spring is a directional post, and valve inner is an open space, has simplified the processing technology of valve body greatly.In the utility model, between described first valve plate and described sealed cover, apply the edge that makes described first valve plate and press to first biasing spring of described sealing surface, being provided with one between the free end of described first valve plate and described directional post applies and makes described second valve plate be close to second biasing spring of the biasing force of described first valve plate hermetically, two valve core plates fit tightly when making off working state, have guaranteed this double-purpose antivoid valve excellent sealing performance.
The material of first valve plate described in the utility model is a teflon, even in use abrasion deformation can not influence its sealing effect, long service life yet.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the sectional view of embodiment's 1 double-purpose antivoid valve;
Fig. 2 is the sectional view of embodiment's 2 double-purpose antivoid valves.
Reference character is expressed as among the figure: 1-cylindrical shell, 2-sealed cover, 3-first gas port, 4-second gas port, the 5-seal boss, 6-first valve plate, 7-first biasing spring, the 8-pilot hole, 9-vent, 10-second valve plate, the 11-directional post, 12-second biasing spring, 13-spring bracket, the 14-through hole, 15-supporting plate, 16, the 17-seal ring, 18-positioning cards, 19-annular groove.
Embodiment
Embodiment 1
Double-purpose antivoid valve described in the utility model, comprise valve body as shown in Figure 1, sealed cover 2 with a cylindrical shell 1 and described cylindrical shell one end of sealing, be provided with seal ring between described cylindrical shell 1 and the described sealed cover 2, one first gas port 3 of the other end moulding at described cylindrical shell 1, on the sidewall of described cylindrical shell 1, form second gas port 4, described second gas port 4 is four, be uniformly distributed on the sidewall of described cylindrical shell 1, on the inwall of the described cylindrical shell 1 between described first gas port 3 and described second gas port 4, form inwardly outstanding seal boss 5, the sealing surface of described seal boss 5 is towards an end that is provided with described sealed cover 2, the sealing surface of seal boss 5 described herein is the plane, can be the inclined-plane that makes progress or cambered surface etc. in other embodiments, as long as can realize and the sealing of described first valve plate and prevent that described first valve plate from moving downward.
Spool, form by first valve board assembly and second valve board assembly, described first valve board assembly comprises one first valve plate 6 and one first biasing spring 7, described first valve plate 6 can along described cylindrical shell endwisely slip and the edge sealably is attached on the described sealing surface of described seal boss 5, described first valve plate 6 is provided with the column spring bracket 13 of a upper end open along the edge of its circumference, going to the bottom of described spring bracket 13 contacts with the upper surface of described first valve plate 6, the sidewall of the sidewall of described spring bracket 13 and described cylindrical shell 1 flexibly connects, described first biasing spring 7 is arranged between going to the bottom of described spring bracket and the described sealed cover 2, described spring bracket 13 is gone to the bottom under the effect of the elastic force of described first biasing spring 7 and is tightly propped up the upper surface of first valve plate 6, makes the edge of described first valve plate 6 press to described sealing surface; Described spring bracket 13 sidewalls are provided with and described second gas port, the 4 staggered through holes 14 that connect.Close described second gas port 4 in described first valve plate 6 edges, but not exclusively block described second gas port 4.The center of described first valve plate 6 forms a pilot hole 8, also forms 3 vents 9 on described first valve plate 6.
Described second valve board assembly comprises second valve plate 10 that is arranged between described first valve plate 6 and described first gas port 3, the center fixation of described second valve plate 10 connects the directional post 11 perpendicular to described second valve plate 10, described directional post 11 passes described pilot hole 8 slidably, the free end of described directional post 11 is equipped with the positioning cards 18 of protrusion, thereby the groove of described supporting plate 15 sides and the bump phase-splitting of positioning cards 18 are carved to close and are fixed on the directional post 11, described supporting plate 15 is detachable, described first valve plate 6 is provided with annular groove near the position of center hole, described second biasing spring 12 is installed between the groove of described supporting plate 15 and described first valve plate 6, and the elastic force of described biasing spring 12 makes described second valve plate 10 be close to described first valve plate 6 hermetically.
Be provided with seal ring 16 between the bottom surface of described seal boss 5 and described first valve plate 6, the upper surface of described second valve plate 10 is provided with annular groove near outer peripheral position, be provided with seal ring 17 in the described annular groove, the material of described first valve plate is a teflon.
During use, this double-purpose antivoid valve is loaded on the pipeline, when press surpassing setting pressure in the pipeline, the elastic force that makes second valve plate 10 of spool overcome first biasing spring 7 rises and moves, and the gas in the container is discharged through second gas port 4, thereby plays the effect of pressure release; When forcing down in the pipeline in setting pressure, the elastic force that second valve plate 10 of spool overcomes second biasing spring 12 moves down, form the space between first valve plate 6 and second valve plate 10, gas successively through between vent 9, two valve plates space, first gas port 3 enter container, thereby play the effect of vacuum breaker.
Embodiment 2
Double-purpose antivoid valve described in the utility model, comprise valve body and spool as shown in Figure 2, being provided with of valve body with embodiment 1, spool is provided with first valve board assembly and second valve board assembly equally, different is, first valve plate upper end is not provided with the column spring bracket, but is provided with annular groove 19 in the part that keeps to the side of the first valve plate upper surface, and described first biasing spring is installed between the annular groove 19 on described sealed cover 2 and described first valve plate 6 edges.Be provided with seal ring 16 between the bottom surface of described seal boss 5 and described first valve plate 6.The upper surface of described second valve plate 10 is provided with annular groove near outer peripheral position, is provided with seal ring 17 in the described annular groove.The material of described first valve plate is a teflon.
Double-purpose antivoid valve working method in the present embodiment is identical with embodiment 1, can play the effect of pressure release and vacuum breaker equally.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (7)
1. a double-purpose antivoid valve comprises
Valve body, sealed cover (2) with a cylindrical shell (1) and described cylindrical shell one end of sealing, one first gas port of the other end moulding (3) at described cylindrical shell (1), on the sidewall of described cylindrical shell (1), form second gas port (4), form inwardly outstanding seal boss (5) on the inwall of the described cylindrical shell (1) between described first gas port (3) and described second gas port (4), the sealing surface of described seal boss (5) is towards an end that is provided with described sealed cover;
Spool is made up of first valve board assembly and second valve board assembly,
It is characterized in that:
Described first valve board assembly comprise one can along described cylindrical shell endwisely slip and the edge sealably is attached to first valve plate (6) on the described sealing surface of described seal boss (5) and one applies first biasing spring (7) that described sealing surface is pressed at the edge that makes described first valve plate (6) between described first valve plate (6) and described sealed cover (2), the center of described first valve plate (6) forms a pilot hole (8), also forms vent (9) on described first valve plate;
Described second valve board assembly comprises second valve plate (10) that is arranged between described first valve plate (6) and described first gas port (3), the center fixation of described second valve plate (10) connects a directional post perpendicular to described second valve plate (11), described directional post (11) passes described pilot hole (8) slidably, is provided with one between the free end of described first valve plate (6) and described directional post (11) and applies and make described second valve plate (10) be close to second biasing spring (12) of the biasing force of described first valve plate (6) hermetically;
Described second gas port (4) is positioned at the position near the described edge of described first valve plate (6).
2. double-purpose antivoid valve according to claim 1 is characterized in that: described second gas port (4) is four, is uniformly distributed on the sidewall of described cylindrical shell (1).
3. double-purpose antivoid valve according to claim 1, it is characterized in that: described first valve plate (6) is provided with the column spring bracket (13) of a upper end open along the edge of its circumference, going to the bottom of described spring bracket (13) contacts with the upper surface of described first valve plate (6), the sidewall of the sidewall of described spring bracket (13) and described cylindrical shell (1) flexibly connects, and described first biasing spring (7) is arranged between going to the bottom of described spring bracket and the described sealed cover (2); Described spring bracket (13) sidewall is provided with and the staggered through hole (14) that connects of described second gas port (4).
4. double-purpose antivoid valve according to claim 3 is characterized in that: the free end of described directional post (11) removably is provided with supporting plate (15), is provided with described second biasing spring (12) between described supporting plate (15) and described first valve plate (6).
5. according to any described double-purpose antivoid valve among the claim 1-4, it is characterized in that: form three vents (9) on described first valve plate (6).
6. according to any described double-purpose antivoid valve among the claim 1-4, it is characterized in that: be provided with seal ring (16) between the bottom surface of described seal boss (5) and described first valve plate (6).
7. according to any described double-purpose antivoid valve among the claim 1-4, it is characterized in that: the upper surface of described second valve plate (10) is provided with annular groove near outer peripheral position, is provided with seal ring (17) in the described annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205291053U CN201810836U (en) | 2010-09-13 | 2010-09-13 | Double-purpose vacuum safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205291053U CN201810836U (en) | 2010-09-13 | 2010-09-13 | Double-purpose vacuum safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810836U true CN201810836U (en) | 2011-04-27 |
Family
ID=43893777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205291053U Expired - Fee Related CN201810836U (en) | 2010-09-13 | 2010-09-13 | Double-purpose vacuum safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810836U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943283A (en) * | 2010-09-13 | 2011-01-12 | 上海远安流体设备有限公司 | Dual-use vacuum relief valve |
| CN105257877A (en) * | 2015-11-26 | 2016-01-20 | 北京斯孚笛科技有限公司 | Intelligent pressure relief device |
| CN105736774A (en) * | 2014-12-25 | 2016-07-06 | 爱三工业株式会社 | Flow control valve and fuel vapor processing apparatus |
-
2010
- 2010-09-13 CN CN2010205291053U patent/CN201810836U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943283A (en) * | 2010-09-13 | 2011-01-12 | 上海远安流体设备有限公司 | Dual-use vacuum relief valve |
| CN101943283B (en) * | 2010-09-13 | 2013-04-24 | 上海远安流体设备科技有限公司 | Dual-use vacuum relief valve |
| CN105736774A (en) * | 2014-12-25 | 2016-07-06 | 爱三工业株式会社 | Flow control valve and fuel vapor processing apparatus |
| US10280874B2 (en) | 2014-12-25 | 2019-05-07 | Aisan Kogyo Kabushiki Kaisha | Flow control valve and fuel vapor processing apparatus incorporating the flow control valve |
| CN105736774B (en) * | 2014-12-25 | 2019-08-02 | 爱三工业株式会社 | Flow control valve and evaporated fuel treating apparatus |
| CN105257877A (en) * | 2015-11-26 | 2016-01-20 | 北京斯孚笛科技有限公司 | Intelligent pressure relief device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101943283A (en) | Dual-use vacuum relief valve | |
| CN201810836U (en) | Double-purpose vacuum safety valve | |
| JP5085347B2 (en) | Check valve integrated cut valve | |
| KR20140007904A (en) | Pilot operated pressure reducing valve | |
| KR20030012811A (en) | Diaphragm valve | |
| US4295489A (en) | Pilot-operated back pressure regulator | |
| CN211117827U (en) | Self-sealing pressure reducing valve | |
| JP4694353B2 (en) | Exhaust valve | |
| JP5102384B2 (en) | Diaphragm pressure regulator | |
| WO2023098596A1 (en) | Explosion-proof valve | |
| CN201391656Y (en) | Pressure valve | |
| JP3811839B2 (en) | Air valve | |
| CN109139931B (en) | Gate valve with steady voltage structure | |
| CN110094559A (en) | A kind of explosion-proof flame-retardant breather valve | |
| KR101207833B1 (en) | Pilot valve actuator and pilot operated safety valve including the same | |
| US2982297A (en) | Fluid pressure regulating valve | |
| CN210566499U (en) | Fluid pressure stabilizing valve | |
| CN208417651U (en) | A kind of safety valve with redundancy back-pressure balance device | |
| KR101952500B1 (en) | A Valve Assembly with a Structure of Removing a Open-Close Module | |
| CN209354665U (en) | Switching valve and faucet device including the switching valve | |
| US9279508B1 (en) | Insert for a fluidic valve assembly | |
| GB1395739A (en) | Vent valve for an oil-tanker storage tank | |
| CN218543297U (en) | Gas self-closing valve shell assembly and self-closing valve with same | |
| CN212564563U (en) | Check valve with pressure release protection function | |
| CN219300053U (en) | Float valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20130913 |