CN205534431U - Relief valve is breathed to screw thread formula - Google Patents
Relief valve is breathed to screw thread formula Download PDFInfo
- Publication number
- CN205534431U CN205534431U CN201620242652.0U CN201620242652U CN205534431U CN 205534431 U CN205534431 U CN 205534431U CN 201620242652 U CN201620242652 U CN 201620242652U CN 205534431 U CN205534431 U CN 205534431U
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- CN
- China
- Prior art keywords
- valve
- pressure disc
- flap
- hole
- spring
- 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
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Abstract
The utility model relates to a relief valve is breathed to screw thread formula, a serial communication port, including the valve body, the valve body bottom is equipped with the threaded connection mouth, and the valve body inner chamber is equipped with pressure disc and valve clack, pressure disc installs on the bearing surface of the round annular table rank of valve body inner chamber, and pressure disc is sealed with the step bearing surface by the round O type circle of its bottom surface, pressure disc's center is equipped with the valve clack hole, valve clack and the cooperation of valve clack hole, the valve clack O type circle on its outer wall is sealed with the valve clack hole, the valve clack top is connected with the valve rod, has concatenated spring holder and lower spring holder on the valve rod, and the top of going up the spring holder has the self -locking nut axial that connects soon in the valve rod spacing, and the edge of lower spring holder supports in pressure disc's last top surface, the extrusion has the spring between the spring holder from top to bottom, install the valve gap on the top surface of valve body, the extrusion has the spring between valve gap and pressure disc, the last venthole that is equipped with of pressure disc.
Description
Technical field
This utility model relates to a kind of relief valve, is specifically related to a kind of screw-type and breathes relief valve.
Background technology
Breathing relief valve is to safeguard that cartridge gas pressure balances, reduce the energy-saving safe product of medium volatilization, breather valve makes full use of the bearing capacity of storage tank itself to reduce media discharge, and its principle is that the weight utilizing positive/negative-pressure valve disc is to control aerofluxus malleation and the intake negative-pressure of storage tank.When in tank, the pressure of medium operates within pressure limit in the control of breather valve, breather valve does not works, and keeps the seal of oil tank；When supplementing medium in tank, making the pressure of the tank internal upper part gas compartment raise, when reaching the operation malleation of breather valve, pressure valve is backed down, and gas escapes from breather valve expiratory port, makes pressure inside the tank not continue to increase；When extracting medium out outside tank; the pressure making the tank internal upper part gas compartment declines; when reaching the operation negative pressure of breather valve; the negative pressure valve disc backing down breather valve is backed down by the air outside tank; ambient atmos is made to enter in tank; the pressure in tank is made not continue to decline, the air pressure balance outside making tank interior with tank, protect the safety device of storage tank.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in construction, it is simple to the safe breather valve of maintenance.
The technical scheme that this utility model is taked is:
A kind of screw-type breathes relief valve, including valve body, body base asks threaded mouth, and body cavity is provided with pressure disc and flap, described pressure disc is installed on a circle ring-shaped step bearing-surface of body cavity, and pressure disc is sealed with step bearing-surface by a circle O of its bottom surface；The center of pressure disc is provided with flap hole, and described flap coordinates with flap hole, and flap O on its outer wall seals with flap hole；Flap top connects valve rod, and valve rod is serially connected with upper spring seat and lower spring cup, and the self-locking nut axial limiting being rotatably connected in valve rod is arranged at the top of upper spring seat, and the edge bearing of lower spring cup is extruded with spring between the upper end face of pressure disc, described upper lower spring cup；Being provided with valve gap on the end face of described valve body, be extruded with spring between described valve gap and pressure disc, described pressure disc is provided with venthole.
Further, the flap hole of described pressure disc is inverted cone shape, and flap is in the inverted cone shape with flap hole corresponding matching.
After taking above technical scheme, the beneficial effects of the utility model are: utilize the pressure disc being coaxially arranged concentrically and flap respectively as breathing equipment, supported by ring-shaped step bearing-surface bottom pressure disc, top and valve cover chamber extrusion spring, when container inner pressure is excessive, pressure disc is by jack-up；Flap cooperatively form sealing with pressure disc, spring base is installed at flap top, and spring base bottom support is in pressure disc, and in container inner pressure deficiency, extraneous air extrusion spring seat promotes flap air-breathing.This quick detachable maintenance of breathing relief valve, simple in construction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further described:
As shown in the figure, a kind of screw-type breathes relief valve, including valve body 1, threaded mouth 2 it is provided with bottom valve body 1, valve body 1 inner chamber is provided with pressure disc 3 and flap 4, described pressure disc 3 is installed on a circle ring-shaped step bearing-surface 5 of body cavity, and pressure disc 3 is sealed with step bearing-surface 5 by a circle O 6 of its bottom surface；The center of pressure disc 3 is provided with flap hole 7, and described flap 4 coordinates with flap hole 7, and flap hole 7 is in inverted cone shape, and flap 4 is in the inverted cone shape with flap hole 7 corresponding matching.The flap 4 O 8 on its outer wall seals with flap hole；Flap 4 top connects valve rod 9, upper spring seat 10 and lower spring cup 11 it is serially connected with on valve rod 9, the top of upper spring seat 10 is by self-locking nut 12 axial limiting being rotatably connected in valve rod 9, the edge bearing of lower spring cup 11 is in the upper end face of pressure disc 3, being provided with spring 13 between described upper and lower spring base, spring 13 is placed on valve rod 9；Being provided with valve gap 14 on the end face of described valve body 1, be extruded with spring 15 between described valve gap 14 and pressure disc 3, described pressure disc 3 is provided with venthole.
Claims (2)
1. a screw-type breathes relief valve, it is characterised in that include valve body, body base is provided with threaded mouth, body cavity is provided with pressure disc and flap, and described pressure disc is installed on a circle ring-shaped step bearing-surface of body cavity, and pressure disc is sealed with step bearing-surface by a circle O of its bottom surface；The center of pressure disc is provided with flap hole, and described flap coordinates with flap hole, and flap O on its outer wall seals with flap hole；Flap top connects valve rod, and valve rod is serially connected with upper spring seat and lower spring cup, and the self-locking nut axial limiting being rotatably connected in valve rod is arranged at the top of upper spring seat, and the edge bearing of lower spring cup is extruded with spring between the upper end face of pressure disc, described upper lower spring cup；Being provided with valve gap on the end face of described valve body, be extruded with spring between described valve gap and pressure disc, described pressure disc is provided with venthole.
A kind of screw-type the most according to claim 1 breathes relief valve, it is characterised in that the flap hole of described pressure disc is inverted cone shape, and flap is in the inverted cone shape with flap hole corresponding matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620242652.0U CN205534431U (en) | 2016-03-28 | 2016-03-28 | Relief valve is breathed to screw thread formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620242652.0U CN205534431U (en) | 2016-03-28 | 2016-03-28 | Relief valve is breathed to screw thread formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205534431U true CN205534431U (en) | 2016-08-31 |
Family
ID=56785352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620242652.0U Expired - Fee Related CN205534431U (en) | 2016-03-28 | 2016-03-28 | Relief valve is breathed to screw thread formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205534431U (en) |
-
2016
- 2016-03-28 CN CN201620242652.0U patent/CN205534431U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20200328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |