CN205663950U - Safety valve - Google Patents
Safety valve Download PDFInfo
- Publication number
- CN205663950U CN205663950U CN201620543564.4U CN201620543564U CN205663950U CN 205663950 U CN205663950 U CN 205663950U CN 201620543564 U CN201620543564 U CN 201620543564U CN 205663950 U CN205663950 U CN 205663950U
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- China
- Prior art keywords
- valve
- main valve
- main
- valve core
- auxiliary
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a hydrovalve among the hydraulic component, concretely relates to safety valve, including valve body, main valve core, main valve stem, main spring, valve gap, the main spring cover is on the main valve stem, be equipped with import, export on the valve body, main valve core connects secondary valve element in the below, main valve core with the secondary valve element cooperation of sliding each other, main valve core with be equipped with the elastic component between the secondary valve element, the elastic component has the messenger secondary valve element with the pulling force of main valve core end face seal laminating, the last through -hole that is equipped with of main valve core, the through -hole make the export with end face seal communicates with each other and is located end face seal's inboard, main valve core's diameter is more than or equal to the internal diameter of import, secondary valve element's diameter is less than the internal diameter of import, the export communicates with each other with the atmosphere. The utility model discloses can guarantee that the pressure in container or the pipeline can too not be lighter than the atmospheric pressure for a long time, can play protected container or pipeline and safety valve's main valve core's effect.
Description
Technical field
This utility model relates to the hydraulic valve in Hydraulic Elements, is specifically related to a kind of relief valve.
Background technology
Relief valve is that opening and closing element is in normally off by under External Force Acting, when the pressure medium in equipment or pipeline rises superb
When crossing setting, prevent pressure medium in pipeline or equipment from exceeding the particular usage valve of specified value by discharge medium outside system
Door.Relief valve belongs to automatic valve class, is mainly used on boiler, pressure vessels and pipes, controls pressure and is less than setting, to people
Body safety and equipment have run important protective effect.
When environment changes, as the pressure in temperature, container or pipeline may diminish, and existing relief valve is often
Can only play pressure release prevents hypertonia from setting off an explosion, and but can not tackle pressure the asking less than ambient pressure in container or pipeline
Topic, when the lengthy pressure in container or pipeline differs with ambient pressure less than the pressure in ambient pressure or container or pipeline
Time bigger, container or pipe deforming can be caused even to rupture.
Summary of the invention
This utility model provides a kind of relief valve for the problems referred to above.
Technical solution adopted in the utility model is as follows: a kind of relief valve, including valve body, main valve plug, main valve stem, main bullet
Spring, valve gap, described main spring is enclosed within main valve stem, and described valve body is provided with import, outlet, auxiliary connection valve below described main valve plug
Core, the sliding mutual with described auxiliary valve core of described main valve plug coordinates, and is provided with elastic component, institute between described main valve plug and described auxiliary valve core
Stating elastic component and have the pulling force making described auxiliary valve core with described main valve plug end face seal laminating, described main valve plug is provided with through hole, institute
State through hole make outlet communicate with described end face seal and be positioned at the inner side of described end face seal, the diameter of described main valve plug more than or
Equal to the internal diameter of described import, the diameter of described auxiliary valve core is less than the internal diameter of described import, and described outlet communicates with air.
Described main valve plug cross section is T-shaped, is provided with groove below described main valve plug, and described auxiliary valve core cross section is T-shaped, described pair
Spool upper end is positioned at described groove.
Described elastic component is positioned at described groove, and described elastic component is auxiliary spring, and the upper end of described auxiliary valve core is fixed with
Jump ring, the upper end of described elastic component withstands on the lower end of described jump ring, and described main valve plug lower end is fixing connects cock, described cock position
Between described main valve plug and auxiliary valve core, the lower end of described elastic component is against cock upper end.
The position that described auxiliary valve core is fitted in itself and described main valve plug end face seal is provided with O RunddichtringO.
Described main valve stem passes described valve gap, is provided with bearing between described main valve stem and valve gap.
Described main valve stem for threadeding, described main valve stem is fixed with spring base with main valve plug, described main spring
Lower end withstands on described spring base, is provided with bearing block below described bearing, and the upper end of described main spring is connected with bearing block.
Described main spring is extruded with main valve plug by described valve gap between described valve gap and main valve plug, described valve gap and valve body
Connect for screw connection manner.
The lower end of described valve gap is fixedly connected with and cap.
The beneficial effects of the utility model are as follows: the medium below described auxiliary valve core is less than secondary valve to the pressure of auxiliary valve core
During the pressure that medium above core applies, pressure reduction promotes auxiliary valve core to move down, air from outlet through hole through main valve plug with
And until two-way pressure balance in the gap between auxiliary valve core and valve body enters container or pipeline, elastic component hauls auxiliary valve core upwards
Mobile until auxiliary valve core fits tightly with described main valve plug, described outlet communicates with air, it is ensured that in container or pipeline
Pressure will not the most excessively be less than atmospheric pressure, can play the effect of the main valve plug of protection container or pipeline and relief valve.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of relief valve.
In figure, 1, valve body；101, import；102, outlet；2, main valve plug；201, through hole；202, groove；3, main valve stem；4,
Main spring；5, valve gap；6, spring base；7, bearing；8, bearing holder (housing, cover)；9, bearing block；10, and cap；11, the first sealing ring；12, secondary valve
Core；13, elastic component；14, jump ring；15, cock；16, O RunddichtringOs；7, nut；18, sealing shroud.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, this utility model can be better described.
A kind of relief valve, including valve body 1, main valve plug 2, main valve stem 3, main spring 4, valve gap 5, described main spring 4 is enclosed within master
On valve rod 3, described valve body 1 is provided with import 101, outlet 102, auxiliary connection spool 12 below described main valve plug 2, described main valve plug
2 coordinate with the described mutual sliding of auxiliary valve core 12, are provided with elastic component 13, described bullet between described main valve plug 2 and described auxiliary valve core 12
Property part 13 have the pulling force making described auxiliary valve core 12 with described main valve plug 2 end face seal laminating, described main valve plug 2 is provided with through hole
201, described through hole 201 makes outlet 102 communicate with described end face seal and is positioned at the inner side of described end face seal, described main valve plug
The diameter of 2 is more than or equal to the internal diameter of described import 101, and the diameter of described auxiliary valve core 12 is less than the internal diameter of described import 101, institute
State outlet 102 to communicate with air.
When pressure at described import 101 is less than or equal to the thrust of described main spring 4, described main valve plug 2 lower end with
Described valve body 1 fits tightly and makes its block input port 101, and the pressure at described import 101 is more than the thrust of described main spring 4
Time, described main valve plug 2 and described import 101 from, described import 101 communicates with outlet 102.
When medium below described auxiliary valve core 12 is less than atmospheric pressure to the pressure of auxiliary valve core 12, atmospheric pressure promotes auxiliary valve core
12 move down, and air gap between outlet 102 through hole and auxiliary valve core 12 and the valve bodies through main valve plug 2 enters container
Or in pipeline.When medium below described auxiliary valve core 12 is equal to atmospheric pressure to the pressure of auxiliary valve core 12, auxiliary spring hauls secondary valve
Core is move upwardly until auxiliary valve core 12 and fits tightly with described main valve plug 2.Can ensure that the air pressure in container or pipeline is not less than
Atmospheric pressure.
Described main valve plug 2 cross section is T-shaped, is provided with groove 202 below described main valve plug 2, and described auxiliary valve core 12 cross section is T
Type, described auxiliary valve core 12 upper end is positioned at described groove 202.Structure tightly promotees, easy for installation.
Described elastic component 13 is positioned at described groove 202, and described elastic component 13 is auxiliary spring, the upper end of described auxiliary valve core 12
Being fixed with jump ring 14, the upper end of described elastic component 13 withstands on the lower end of described jump ring 14, and described main valve plug 2 lower end is fixing to be connected
Cock 15, described cock 15 is between described main valve plug 2 and auxiliary valve core 12, and the lower end of described elastic component 13 is against in cock 15
End.Auxiliary spring, under jump ring 14 and cock 15 mutually extrude, has a thrust upwards, thus has auxiliary valve core 12 jump ring 14
One thrust gone up mutually, makes described auxiliary valve core 12 and the end face seal of described main valve plug 2
The position that described auxiliary valve core 12 is fitted in itself and described main valve plug 2 end face seal is provided with O RunddichtringO 16.Make end face
The sealing effectiveness sealed is more preferable.
Described main valve stem 3, through described valve gap 5, is provided with bearing 7 between described main valve stem 3 and valve gap 5.Make on main valve stem 3
Under more clear and more coherent.
Described main valve stem 3 for threadeding, described main valve stem 3 is fixed with spring base 6, described main bullet with main valve plug 2
The lower end of spring 4 withstands on described spring base 6, is provided with bearing block 9, the upper end of described main spring 4 and bearing block below described bearing 7
9 connect.Main valve plug 2 need to overcome the thrust of main spring 4 just can upwards sliding, play the effect of pressure release.
Described valve gap 5 is connected for screw connection manner with valve body 1.Existing various pressure relief valve device, because of its safe pressure
Pressure release value is non-adjustable, thus cannot require and pressure release according to the difference of force value in container or pipeline.When environment changes, as
Pressure voltage required by temperature, container or pipeline can change, if relief valve device cannot regulate its pressure voltage accordingly, easily makes appearance
Device or pipeline may be in the unsafe factor of supertension, the danger that even set off an explosion.Valve gap and valve body are the side of being spirally connected
Formula connects, and turn valve gap is close to or away from valve body, thus regulates the thrust size of main spring, corresponding regulation safety valve resistance to
Pressure value.
The lower end of described valve gap 5 is fixedly connected with and cap 10.Turn valve can be carried out with the instrument such as spanner adaptive with also cap
Lid.
Described valve gap 5 is connected for screw connection manner with valve body 1.The lower end of described valve gap 5 is fixedly connected with and cap 10.Can use
The instrument such as spanner adaptive with also cap carrys out turn valve gap.
The position that described main valve plug 2 lower end and described valve body 1 fit tightly is provided with the first sealing ring 11.Strengthen main valve plug 2
And the sealing between described valve body 1.
Wherein valve body 1 includes being provided with import 101, the lower valve body 103 of outlet 102, and be provided with main valve stem 3 and with valve gap 5
The upper valve body 104 connected, described lower valve body 103 is connected with upper valve body 104 nut 17, described lower valve body 103 and upper valve body 104
Between be provided with sealing shroud 18, be so easily installed.
It is provided with the second sealing ring 19 between described main valve plug 2 and upper valve body 104 and sealing shroud 18, only medium and master can be put
Valve rod contacts with main spring, affects its operation and occupation mode.
The container of installation relief valve described in the present embodiment or pipeline, its safe pressure scope is that air is depressed into relief valve
Pressure voltage, and the pressure voltage of relief valve can be adjusted by turn valve gap and cap within the specific limits, is adapted for mount on
Comprise environment than the container of more sensitive medium (when environmental change such as temperature, the pressure of medium changes greatly) or pipeline
On, and medium therein can be with air contact.
The foregoing is only a kind of embodiment of the present utility model, be not used for limiting protection domain of the present utility model；
Protection domain of the present utility model is limited by the claim in claims, and every equivalence made according to utility model
Change and amendment, all within the protection domain of this utility model patent.
Claims (8)
1. a relief valve, including valve body (1), main valve plug (2), main valve stem (3), main spring (4), valve gap (5), its feature exists
In: described main spring (4) is enclosed within main valve stem (3), and described valve body (1) is provided with import (101), outlet (102), described main valve
Core (2) lower section auxiliary connection spool (12), described main valve plug (2) coordinates with described auxiliary valve core (12) mutually sliding, described main valve plug
(2) and be provided with elastic component (13) between described auxiliary valve core (12), described elastic component (13) makes described auxiliary valve core (12) with described
The pulling force of main valve plug (2) end face seal laminating, described main valve plug (2) is provided with through hole (201), and described through hole (201) makes outlet
(102) communicating and be positioned at the inner side of described end face seal with described end face seal, the diameter of described main valve plug (2) is more than or equal to
The internal diameter of described import (101), the diameter of described auxiliary valve core (12) is less than the internal diameter of described import (101), described outlet (102)
Communicate with air.
Relief valve the most according to claim 1, it is characterised in that: described main valve plug (2) cross section is T-shaped, described main valve plug
(2) lower section is provided with groove (202), and described auxiliary valve core (12) cross section is T-shaped, and described auxiliary valve core (12) upper end is positioned at described groove
(202) in.
Relief valve the most according to claim 2, it is characterised in that: described elastic component (13) is positioned at described groove (202),
Described elastic component (13) is auxiliary spring, and the upper end of described auxiliary valve core (12) is fixed with jump ring (14), described elastic component (13)
Upper end withstands on the lower end of described jump ring (14), and described main valve plug (2) lower end is fixing connects cock (15), and described cock (15) is positioned at
Between described main valve plug (2) and auxiliary valve core (12), the lower end of described elastic component (13) is against cock (15) upper end.
Relief valve the most according to claim 1, it is characterised in that: described auxiliary valve core (12) at it with described main valve plug (2)
The position of end face seal laminating is provided with O RunddichtringO (16).
Relief valve the most according to claim 1, it is characterised in that: described main valve stem (3) passes described valve gap (5), described
Bearing (7) it is provided with between main valve stem (3) and valve gap (5).
Relief valve the most according to claim 5, it is characterised in that: described main valve stem (3) and main valve plug (2) they are that screw thread connects
Connecing, described main valve stem (3) is fixed with spring base (6), the lower end of described main spring (4) withstands on described spring base (6), institute
Stating bearing (7) lower section and be provided with bearing block (9), the upper end of described main spring (4) is connected with bearing block (9).
Relief valve the most according to claim 1, it is characterised in that: described main spring (4) is at described valve gap (5) and main valve plug
(2) being extruded with main valve plug (2) by described valve gap (5) between, described valve gap (5) is that screw connection manner is connected with valve body (1).
Relief valve the most according to claim 7, it is characterised in that: the lower end of described valve gap (5) is fixedly connected with and cap
(10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620543564.4U CN205663950U (en) | 2016-06-07 | 2016-06-07 | Safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620543564.4U CN205663950U (en) | 2016-06-07 | 2016-06-07 | Safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205663950U true CN205663950U (en) | 2016-10-26 |
Family
ID=57156466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620543564.4U Withdrawn - After Issue CN205663950U (en) | 2016-06-07 | 2016-06-07 | Safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205663950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937640A (en) * | 2016-06-07 | 2016-09-14 | 温州天悦流体设备科技有限公司 | Safety valve |
-
2016
- 2016-06-07 CN CN201620543564.4U patent/CN205663950U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937640A (en) * | 2016-06-07 | 2016-09-14 | 温州天悦流体设备科技有限公司 | Safety valve |
| CN105937640B (en) * | 2016-06-07 | 2018-04-03 | 温州天悦流体设备科技有限公司 | A kind of safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161026 Effective date of abandoning: 20180403 |