CN2093290U - Built-in valve and safety valve type gas pressure relief device - Google Patents
Built-in valve and safety valve type gas pressure relief device Download PDFInfo
- Publication number
- CN2093290U CN2093290U CN 90213995 CN90213995U CN2093290U CN 2093290 U CN2093290 U CN 2093290U CN 90213995 CN90213995 CN 90213995 CN 90213995 U CN90213995 U CN 90213995U CN 2093290 U CN2093290 U CN 2093290U
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- valve
- safety valve
- safety
- valve body
- gas pressure
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Abstract
The utility model relates to a gas pressure reducing device which is provided with a valve and a safety valve inside and is composed of a regulating handle, a rear cover, a safety valve, an air outlet connection nozzle, a valve body, a low pressure meter head, a high pressure meter head, an air inlet joint, a valve, etc. A valve and the safety valve are arranged in the pressure reducing device. The utility model which has novel structure and strong manufacturability enables various valve bodies of the pressure reducing device to be interchanged and universally used. The utility model has favorable practicability and marked economical benefit.
Description
The utility model belongs to the gas pressure reduction structure that reaches the laboratory gas cylinder in gas cutting and the welding procedure, is a kind of interior dress valve and safety valve formula gas pressure reducer.
General gas pressure reducer in present gas cutting and welding and the laboratory, its safety valve is installed in decompressor valve body outside.And valve can screw form parts such as valve are installed in decompressor valve body bottom.This kind decompressor complex structure, processing technology are difficult, are difficult for installing, and also can not guarantee the interchangeability of multiple gases decompressor valve body.
The requirement that deficiency that exists according to prior art and product are drawn close international standard.The utility model its objective is that to gas pressure reducer designs a kind of new structure reach structural integrity, processing technology is simple, stable performance, and make decompressor can adapt to multiple dielectric gas, promptly valve body has interchangeability.
Structure of the present utility model and technology contents be as shown in Figure 1: be by regulate handgrip (1), bonnet (2), safety valve (5), giving vent to anger connects mouth (8), valve body (9), low pressure gauge outfit (10), high pressure gauge outfit (12), air input joint (13), valve formations such as (14).Small cushion block (3) big spring (4) and safety valve (5) are housed in the bonnet (2).Intracardiac chamber (11) and the air outlet hole (7) of being provided with in the valve body (9).Bonnet (2) and valve body (9) threaded joint constitute frame of the present utility model, its inner low-pressure chamber (6) that forms.Safety valve (5) and valve (14) are housed in the low-pressure chamber (6).Safety valve (5) is positioned at bonnet (2) and uses with big spring (4) is equipped.Its valve (14) is positioned at valve body (9) center cavity (11), and the upper end engages with safety valve (5).Regulate handgrip (1) and be positioned at bonnet (2) top, contact with small cushion block (3) and big spring (4), promote the switch knob that safety valve (5) and valve (14) upper end push rod (25) becomes valve (14) by the silk hole.Air input joint (13) is equipped with high pressure gauge outfit (12), gives vent to anger by the equipped low pressure gauge outfit (10) of mouth (8), lays respectively at the both sides of valve body (9) and form gas circuit with valve body (9) central lumen (11) and air outlet hole (7).
Safety valve (5) is as shown in Figure 2: by housing (21), regulate spiral shell and order (19), spring (20).Air outlet hole (23), valve parts such as (22) constitute housing (21) and are fitted in the big spring (4).Its inside is provided with adjusting screw (19), spring (20), valve (22) successively.Housing (21) lower end contacts with push rod (25), valve (14), emergency valve nut (15) fixedly elastomer diaphragm (16) and big cushion block (17) on housing (21), and be tightened in the bonnet (2) by valve body (9), housing (21) bottom be provided with two oblique vents (24) and with housing (21) in and adjusting screw (19) center hole (23) to bonnet (2) side opening (18) the formation gas circuit of giving vent to anger.
Valve (14) is as shown in Figure 3: by valve seat (27), spool (29) spool supporter (29).Little spring (30) constitutes.Valve is sat (27) and is tightened on valve body (9) center cavity top, the centre is provided with push rod (25), the top contacts with safety valve housing (21), below contact spool (28), spool (28) is fitted in valve body (9) center cavity, remain with valve seat (27) by the holding power of supporter (29) by little spring (30) and to contact closed condition, thereby form plenum chamber (6), its valve seat (27) upper end is provided with two ventilation inclined holes (26) from plenum chamber (11) to low-pressure chamber (6).
Fig. 1, the utility model structural representation:
1-regulate handgrip, 2-bonnet, 3-small cushion block, 4-big spring, 5-safety valve, 6-low-pressure chamber, 7-air outlet hole, 8-give vent to anger connect mouth,, 9-valve body, 10-low pressure gauge outfit, 11-plenum chamber, 12-high pressure gauge outfit, 13-air input joint, 14-valve, 15-emergency valve nut, 16-diaphragm, 17-big cushion block, 18-air outlet hole, 25-push rod.
Fig. 2: the utility model safety valve schematic representation
19-safety valve adjusting screw, 20-spring, 21-housing, 22-valve, 23-air outlet hole, 24-inlet hole
Fig. 3, the utility model valve mechanism schematic representation
25-push rod, 26-air outlet hole, 27-valve seat, 28-spool, 29-spool supporter.The 30-little spring
Narrate the utility model working principle below by example:
Referring to Fig. 1, when pressurized gas enter plenum chamber (11) by air input joint (13), high pressure gauge outfit (12) shows numerical value, handgrip (1) is regulated in dextrorotation, by small cushion block (3), compression big spring (4), safety valve (5) promotes push rod (25), drive spool (28), make spool (28) lift off a seat (27) form the gap, at this moment plenum chamber (11) gas is just gone up inclined hole (26) by valve seat (27) all around from spool (28) and is flowed into low-pressure chamber (6), gas from plenum chamber (11) to low-pressure chamber (6) obtains suddenly expanding because of volume increases and causes gas pressure to descend, and so just realizes decompression of the present utility model.The gas that connects mouth (8) output of giving vent to anger can be regulated gas pressure by regulating handgrip (1), to satisfy the needs of real work.
Under usual condition (referring to Fig. 2), valve (22) is subjected to the effect of spring (4) all the time and presents closed condition, when gas pressure reaches the critical pressure value of safety valve setting in the low-pressure chamber (6), gas will be by pore (24) pressuring spring (20), open valve (22), flow out through air outlet hole (23) and bonnet air outlet hole (18).When the pressure of local plenum chamber was lower than the critical pressure of the former setting of safety valve, because spring (20) effect, safety valve valve (22) can be closed, thereby plays the safety control effect.
The utlity model has novel structure, manufacturability is strong, is convenient to I﹠M.Can make multiple decompressor valve body exchange and general.This product has outstanding practicability and tangible economic benefit.
Claims (3)
1, dress valve and safety valve formula gas pressure reducer in a kind of, be by regulate handgrip (1), bonnet (2), safety valve (5), giving vent to anger connects mouth (8), valve body (9), low pressure gauge outfit (10), high pressure gauge outfit (12), air input joint (13), formation such as valve (14) part of etc.ing.The structure that it is characterized in that it is that safety valve (5) and valve (14) are loaded in the low-pressure chamber (6) that is made up of valve body (9) and bonnet (2) in all, safety valve (5) is positioned at bonnet (2) ghost, be provided with spring (4), small cushion block (3) and regulate handgrip (1) and contact the push rod (25) of following contact valve (14) upper end.Valve (14) is positioned at the position of valve body (9) central lumen, and valve seat (27) is tightened on the top of valve body (9) center cavity.Spool (29) in valve seat (27) contact, forms plenum chamber (11) in the valve body center cavity.
2, according to claim 1, described interior dress valve and safety valve formula gas pressure reducer is characterized in that described safety valve (5) housing (21) bottom is provided with two oblique vents (24) that can form the gas circuit of giving vent to anger with air outlet hole (23) and (18).
3, interior dress valve according to claim 1 and safety valve formula gas pressure reducer is characterized in that described valve (14) is provided with two oblique vents (26) that can make plenum chamber (11) form gas circuit in low-pressure chamber (6) in valve seat (27) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90213995 CN2093290U (en) | 1990-06-20 | 1990-06-20 | Built-in valve and safety valve type gas pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90213995 CN2093290U (en) | 1990-06-20 | 1990-06-20 | Built-in valve and safety valve type gas pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2093290U true CN2093290U (en) | 1992-01-15 |
Family
ID=4893422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90213995 Pending CN2093290U (en) | 1990-06-20 | 1990-06-20 | Built-in valve and safety valve type gas pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2093290U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727306A (en) * | 2013-12-05 | 2014-04-16 | 常熟市中凯仪表有限公司 | Pressure reducer |
| CN108506538A (en) * | 2018-03-28 | 2018-09-07 | 沈阳航天新光集团有限公司 | A kind of low-pressure gas safety monitoring device |
| CN109323027A (en) * | 2018-11-28 | 2019-02-12 | 北京控制工程研究所 | A kind of capsule stack and absolute pressure formula pressure reducer |
-
1990
- 1990-06-20 CN CN 90213995 patent/CN2093290U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727306A (en) * | 2013-12-05 | 2014-04-16 | 常熟市中凯仪表有限公司 | Pressure reducer |
| CN108506538A (en) * | 2018-03-28 | 2018-09-07 | 沈阳航天新光集团有限公司 | A kind of low-pressure gas safety monitoring device |
| CN109323027A (en) * | 2018-11-28 | 2019-02-12 | 北京控制工程研究所 | A kind of capsule stack and absolute pressure formula pressure reducer |
| CN109323027B (en) * | 2018-11-28 | 2020-07-14 | 北京控制工程研究所 | Diaphragm capsule subassembly and absolute pressure formula pressure reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |