CN204961945U - Breathe relief valve - Google Patents
Breathe relief valve Download PDFInfo
- Publication number
- CN204961945U CN204961945U CN201520717560.9U CN201520717560U CN204961945U CN 204961945 U CN204961945 U CN 204961945U CN 201520717560 U CN201520717560 U CN 201520717560U CN 204961945 U CN204961945 U CN 204961945U
- Authority
- CN
- China
- Prior art keywords
- valve
- negative pressure
- flap
- spring
- pressure
- 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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- Safety Valves (AREA)
Abstract
The utility model relates to a breathe relief valve, including valve body, disk seat, valve clack, pressure setting spring, valve gap, mainly be the pressure setting spring mounting between the valve gap and the valve clack back, the valve gap is installed outside the valve body on the face of cylinder by the screw, the pressure setting spring adopts coaxial arrangement's outer spring and inner spring to constitute, the cooperation of piston structure is connected between the outer periphery of valve clack and the valve body inner chamber wall, and the valve body lateral wall system that exports at the disk seat has the discharge orifice, have a negative pressure disk seat in the inboard system of valve clack sealing washer, the system has the suction hole in the inboard valve clack plane of negative pressure disk seat, valve clack center installation negative pressure valve clack, this negative pressure valve clack by the negative pressure spring mounting in the center of valve clack department, be equipped with in the plane on the negative pressure valve clack with the mutual complex O type sealing washer of negative pressure valve seat seal facial features. Improve adjacent distance and the pressure mass rate of emission between two rings of spring, simultaneously through the screw -thread fit state between rotatory valve gap and the valve body, and the set pressure regulation is convenient. Be applicable to high pressure vessel's positive negative pressure overpressure protection valve.
Description
Technical field
The utility model belongs to valve field, particularly about a kind of breathing relief valve.The utility model is applicable to the positive/negative-pressure overpressure protection valve of high-pressure bottle.
Background technique
Breathe safety valve to be generally made up of valve body, positive/negative-pressure flap, positive/negative-pressure valve seat, positive/negative-pressure spring, when malleation exceedes setup pressure value, the elastic force that forward pressure medium overcomes forward spring pushes the pressure release of malleation flap open; When in pressurized container, negative pressure exceedes setting value, the elastic force that negative pressure overcomes negative pressure spring inhales dynamic negative pressure flap unlatching, sucks extraneous gas.Its major defect is under high pressure operating mode, and the spring diameter of section of employing is large, and make the spacing between two adjacent rings spring very near, the contour projector of positive pressing spring is very little, makes the Lift of malleation flap very low, and mass rate of emission is slow, and pressure setting regulates trouble.
Summary of the invention
The purpose of this utility model is the shortcoming existed for prior art, provides the breathing safety valve that a kind of Set pressure is easy to adjust, Lift is high, mass rate of emission is fast.
The technical solution of the utility model comprises valve body, valve seat, flap, pressure setting spring, valve gap, flap is equipped with the seal ring cooperatively interacted with sealing surface of seat; Mainly pressure setting spring fitting is between valve gap and the flap back side, and valve gap is arranged on valve body external cylindrical surface by screw thread; Pressure setting spring adopts coaxial mounted outer spring and inner spring composition; Between flap outer peripheral surface and body cavity wall, piston structure is connected, and is shaped with discharge orifice at the body wall of valve seat outlet; Negative pressure valve seat is shaped with inside valve clack sealing ring, suction port is shaped with in flap plane inside negative pressure valve seat, negative pressure flap is installed at flap center, this negative pressure flap is by the center position of negative pressure spring fitting at flap, and on negative pressure flap, plane is built with the O RunddichtringO cooperatively interacted with negative pressure valve seat sealing surface.
The utility model has the advantages that pressure setting spring adopts outer spring inner spring composition, the distance between spring two adjacent rings is improved under high pressure operating mode, improve flap Lift and pressure vent speed, simultaneously by the screw-thread fit state between rotary valve cover and valve body, the i.e. Set pressure value of adjustable pressure setting spring, its Set pressure is easy to adjust.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1 valve body, 2 negative pressure flaps, 3O RunddichtringO, 4 seal rings, 5 flaps, 6 negative pressure springs, 7 inner springs, 8 outer springs, 9 glands, 10 set screw nuts, 11 valve gaps, 12 dust-proof cover, 13 pads, 14 lead sealing screws, 15 lead sealings, 16 suction ports, 17 discharge orifices.
Embodiment
Breathing safety valve as described in Figure 1, comprises valve body 1, valve seat, flap 5, pressure setting spring, valve gap 11, and flap 5 is provided with the seal ring 4 cooperatively interacted with sealing surface of seat; Pressure setting spring fitting is between valve gap 11 and flap 5 back side, and valve gap 11 is arranged on valve body 1 external cylindrical surface by screw thread, by the rotary valve cover 11 i.e. decrement of adjustable pressure setting spring, regulates Set pressure value; Pressure setting spring adopts coaxial mounted outer spring 8 and inner spring 7 to form, and reduces the diameter of section of spring, increases the span between two adjacent rings spring, improves the Lift of flap 5; For piston structure is connected between flap 5 outer peripheral surface and valve body 1 internal chamber wall, when flap 5 is opened and closed, play leading role, be shaped with discharge orifice 17 at valve body 1 sidewall of valve seat outlet; Flap 5 is shaped with negative pressure valve seat inside seal ring 4, suction port 16 is shaped with in flap 5 plane inside negative pressure valve seat, negative pressure flap 2 is installed at flap 5 center, this negative pressure flap 2 is arranged on the center position of flap 5 by negative pressure spring 6, namely the guide rod of negative pressure flap 2 passes the pilot hole at flap 5 center, negative pressure spring 6 is arranged between gland 9 outside guide rod and flap 5 by set screw nut 10, and on negative pressure flap 2, plane is built with the O RunddichtringO 3 cooperatively interacted with negative pressure valve seat sealing surface.
Install dust-proof cover 12 outside valve gap 11 and valve body 1, this dust-proof cover 12 is fixedly mounted on valve gap 11 by lead sealing screw 14.Pad 13 is set between dust-proof cover 12 and valve gap 11, lead sealing 15 is installed between valve gap 11 and lead sealing screw 14, the locking position of valve gap 11 on valve body 1.
Claims (1)
1. a breathing safety valve, comprises valve body (1), valve seat, flap (5), pressure setting spring, valve gap (11), and flap (5) is provided with the seal ring (4) cooperatively interacted with sealing surface of seat; It is characterized in that pressure setting spring fitting is between valve gap (11) and flap (5) back side, valve gap (11) is arranged on valve body (1) external cylindrical surface by screw thread; Pressure setting spring adopts coaxial mounted outer spring (8) and inner spring (7) composition; For piston structure is connected between flap (5) outer peripheral surface and valve body (1) internal chamber wall, be shaped with discharge orifice (17) at valve body (1) sidewall of valve seat outlet; Negative pressure valve seat is shaped with in upper seal ring (4) inner side of flap (5), suction port (16) is shaped with in flap (5) plane inside negative pressure valve seat, negative pressure flap (2) is installed at flap (5) center, this negative pressure flap (2) is arranged on the center position of flap (5) by negative pressure spring (6), the upper plane of negative pressure flap (2) is built with the O RunddichtringO (3) cooperatively interacted with negative pressure valve seat sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717560.9U CN204961945U (en) | 2015-09-14 | 2015-09-14 | Breathe relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717560.9U CN204961945U (en) | 2015-09-14 | 2015-09-14 | Breathe relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961945U true CN204961945U (en) | 2016-01-13 |
Family
ID=55057014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520717560.9U Expired - Fee Related CN204961945U (en) | 2015-09-14 | 2015-09-14 | Breathe relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961945U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838392A (en) * | 2017-04-06 | 2017-06-13 | 南通四方罐式储运设备制造有限公司 | A kind of bulk container or packing material pressure relief device |
| CN108591554A (en) * | 2018-07-19 | 2018-09-28 | 中交西安筑路机械有限公司 | A kind of pressure balance safety valve |
| CN108916427A (en) * | 2018-09-25 | 2018-11-30 | 远大阀门集团有限公司 | A kind of adjusting integrated check valve and the pipe power valve with the adjusting integrated check valve |
| CN109488798A (en) * | 2017-09-11 | 2019-03-19 | 徐州德胜石油机械有限公司 | A kind of novel anti-rollover overflow breather valve |
| CN111322439A (en) * | 2020-03-10 | 2020-06-23 | 昆山巨元升机械设计有限公司 | Pressure balance valve |
| CN112128442A (en) * | 2020-09-23 | 2020-12-25 | 中车西安车辆有限公司 | Breathing type safety valve |
| CN112539289A (en) * | 2020-11-16 | 2021-03-23 | 江苏南极机械有限责任公司 | Two-way pressure release valve disc of PV valve |
-
2015
- 2015-09-14 CN CN201520717560.9U patent/CN204961945U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838392A (en) * | 2017-04-06 | 2017-06-13 | 南通四方罐式储运设备制造有限公司 | A kind of bulk container or packing material pressure relief device |
| CN109488798A (en) * | 2017-09-11 | 2019-03-19 | 徐州德胜石油机械有限公司 | A kind of novel anti-rollover overflow breather valve |
| CN108591554A (en) * | 2018-07-19 | 2018-09-28 | 中交西安筑路机械有限公司 | A kind of pressure balance safety valve |
| CN108916427A (en) * | 2018-09-25 | 2018-11-30 | 远大阀门集团有限公司 | A kind of adjusting integrated check valve and the pipe power valve with the adjusting integrated check valve |
| CN111322439A (en) * | 2020-03-10 | 2020-06-23 | 昆山巨元升机械设计有限公司 | Pressure balance valve |
| CN112128442A (en) * | 2020-09-23 | 2020-12-25 | 中车西安车辆有限公司 | Breathing type safety valve |
| CN112539289A (en) * | 2020-11-16 | 2021-03-23 | 江苏南极机械有限责任公司 | Two-way pressure release valve disc of PV valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20210914 |