CN2519072Y - Air valve - Google Patents
Air valve Download PDFInfo
- Publication number
- CN2519072Y CN2519072Y CN 01256869 CN01256869U CN2519072Y CN 2519072 Y CN2519072 Y CN 2519072Y CN 01256869 CN01256869 CN 01256869 CN 01256869 U CN01256869 U CN 01256869U CN 2519072 Y CN2519072 Y CN 2519072Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- valve body
- utility
- gas
- 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 relates to a gas valve which belongs to the improvement of the mini optic charge and discharge device. The utility model is characterized in that the valve base(3) is closely connected with the device; the gas pipe connector(1) is helix connected with the valve base(3); the valve body(5) can horizontally slide in the valve cavity(3); the gas passage(9) on the valve body(5) is connected or disconnected with the venting holes(8) on the valve base(3). The utility model has the advantages of rational structure and design, simple and convenient process technics, small product size, good sealing capability, changeable use of the charge and discharge valve and wide temperature range.
Description
Technical field
The utility model is a kind of novel air valve, belong to the compact optical instrument dry with fill, the improvement of bleed valve structure.
Background technique
When optical instrument is operated in the very high environment of humidity, must regularly pass to dry air to instrument internal, for this reason instrument need be provided with fill, bleed valve.For strengthening drying effect, instrument internal air pressure is greater than external environment condition air pressure, and general difference is 20Kpa-40Kpa, needs to show in case difference is excessive with the barometer prison, damages optical instrument.The contemporary optics instrument structurally trends towards miniaturization, and volume is little, in light weight; Its Environmental Conditions requires more abominable, and operating temperature range reaches-40～+ 60 ℃.Correspondingly to fill, bleed valve also proposed to carve severe requirement, promptly volume is little, is fit to bad working environment.
Now Chang Yong gas charging valve, bleed valve physical dimension are all relatively large, and can't connect inner with the extraneous draught head of barometer optical viewer, fill, bleed valve can not exchange use; The big and serviceability temperature of the longitudinal size of fine setting vacuum valve is-5～+ 80 ℃, and low temperature is not enough, can not satisfy use, and adapter and valve seat can not throw off, and influences air-tightness.
Summary of the invention:
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art and a kind of novel air valve is provided, and to satisfy the air-tightness requirement of Modern Small optical instrument, volume miniaturization, available barometer prison show, adapt to the rugged environment requirement
The purpose of this utility model can reach by following measure: novel air valve, constitute by valve seat, valve body, airtight circle and spring, valve seat and instrument are to be closely connected, gas-tpe fitting is threaded with valve seat, valve body can move horizontally at valve base cavity, and air vent on the valve body and the vent on the valve seat are connected (or disconnection).
The purpose of this utility model can also reach by following measure: there is trim ring on the valve seat top, and airtight circle is all arranged on valve body and the gas-tpe fitting.
The utility model has following advantage compared to existing technology:
1, structural design is simple, and processing technology is easy, and product size is little, and with the supporting use of optical instrument, air-tightness is good: pressure decline≤10Kpa/30min, fill, the use of bleed valve has interchangeability; Bleed valve can connect barometer, at any time inner the and ambient pressure difference of optical viewer.
2, increase the temperature using scope, hot operation temperature+50 ℃; Storing temperature+75 ℃; Temperature variability: (0.7～1) ℃/min, temperature stabilization time: 2h; Operating time: 1h; Memory time: 12h.Low-temperature working temperature-43 ℃; Storing temperature-45 ℃; Temperature variability: (0.7～1) ℃/min, temperature stabilization time: 2h; Operating time: 1h; Memory time: 12h.
3, air-tightness is good.Detecting method: dry gas is charged in the instrument, make the pressure gauge indication reach 20Kpa, stop inflation, observe 30min, the pressure gauge indicated pressure descends should be less than 10Kpa.Testing result :≤2Kpa/30min
Description of drawings:
Fig. 1 is the utility model structural drawing
Fig. 2 is the utility model working state structure figure
Mode of execution:
The utility model is further described below in conjunction with accompanying drawing:
As shown in Figure 1: air valve by fill, exhaust tube joint, airtight circle, valve seat, valve body, spring and trim ring form.Valve seat 3 and instrument 10 are to be closely connected, and binding site is coated with vacuum silicone rubber with anti-gas-leak.Gas-tpe fitting 1 is threaded with valve seat 3, promote simultaneously by the valve body 5 that spring 6 supports move horizontally at valve seat 3 inner chambers, air vent 9 on the valve body 5 connects (or disconnection) with the vent 8 on the valve seat 3.There is trim ring 7 on valve seat 3 tops, and airtight circle 4,2 is arranged on valve body 5 and the gas-tpe fitting 1.
As shown in Figure 2: when instrument needs drying, one end of gas tube joint 1 connects dry tracheae 11, the other end is threaded, promotes simultaneously valve body 5 and airtight circle 4 and moves horizontally at valve seat 3 inner chambers with valve seat 3, air vent 9 on the valve body 5 is connected with the vent 8 on the valve seat 3, dry gas enters instrument internal, and instrument is carried out drying.Simultaneously, do the bleed valve time spent, gas-tpe fitting 1 is connected with barometric leg 12, exhaust tube joint 1 is threaded with valve seat 3, promote valve body 5 and airtight circle 4 and move horizontally, the air vent 9 on the valve body 5 is connected with the vent 8 on the valve seat 3, realize observation instrument internal air pressure at valve seat 3 inner chambers.
After the dry end of instrument internal, make fast fill, exhaust tube joint 1 breaks away from valve seat 3, valve body 5 and airtight circle 4 are under the effect of spring 6, move horizontally in the other direction at valve seat 3 inner chambers, air vent 9 and the vent on the valve seat 38 on the valve body 5 are disconnected, thereby realize instrument internal environment and extraneous isolation.
Claims (2)
1, novel air valve, constitute by valve seat, valve body, airtight circle and spring, it is characterized in that: valve seat (3) and instrument are to be closely connected, gas-tpe fitting (1) is threaded with valve seat (3), promote by the valve body (5) that spring (6) supports move horizontally at valve seat (3) inner chamber, air vent (9) on the valve body (5) connects (or disconnection) with the vent (8) on the valve seat (3).
2, novel air valve as claimed in claim 1 is characterized in that there is trim ring (7) on valve seat (3) top, has airtight circle (4), (2) on valve body (5) and the gas-tpe fitting (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256869 CN2519072Y (en) | 2001-12-11 | 2001-12-11 | Air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256869 CN2519072Y (en) | 2001-12-11 | 2001-12-11 | Air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2519072Y true CN2519072Y (en) | 2002-10-30 |
Family
ID=33665738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01256869 Expired - Fee Related CN2519072Y (en) | 2001-12-11 | 2001-12-11 | Air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2519072Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206551A (en) * | 2013-03-14 | 2013-07-17 | 北京工业大学 | Valve element for automatic backlash compensation |
| CN103991523A (en) * | 2014-05-09 | 2014-08-20 | 宁波市成大机械研究所 | Airbag capable of autoinflation underwater |
| CN103991522A (en) * | 2014-05-09 | 2014-08-20 | 宁波市成大机械研究所 | Airbag capable of autoinflation underwater |
| CN103991524A (en) * | 2014-05-09 | 2014-08-20 | 宁波市成大机械研究所 | Gas bag capable of autoinflation underwater |
-
2001
- 2001-12-11 CN CN 01256869 patent/CN2519072Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206551A (en) * | 2013-03-14 | 2013-07-17 | 北京工业大学 | Valve element for automatic backlash compensation |
| CN103991523A (en) * | 2014-05-09 | 2014-08-20 | 宁波市成大机械研究所 | Airbag capable of autoinflation underwater |
| CN103991522A (en) * | 2014-05-09 | 2014-08-20 | 宁波市成大机械研究所 | Airbag capable of autoinflation underwater |
| CN103991524A (en) * | 2014-05-09 | 2014-08-20 | 宁波市成大机械研究所 | Gas bag capable of autoinflation underwater |
| CN103991522B (en) * | 2014-05-09 | 2017-03-08 | 宁波市成大机械研究所 | Can automatic inflating under water airbag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2519072Y (en) | Air valve | |
| CN101266187A (en) | Gas pressure regulator test device | |
| CN207991813U (en) | Gas pressure regulator, governor testboard | |
| CN200955964Y (en) | External electronic pressure, temperature detecting device | |
| CN201421418Y (en) | Gasbag sealing device for water jacket in hydrostatic test with gas cylinder water jacket method | |
| CN209354723U (en) | For detecting the pneumatic pressure transmitter of highly pressurised liquid | |
| CN213147859U (en) | Simple vacuum tank for environmental simulation test | |
| CN100563059C (en) | A kind of cavity body filter test macro and method | |
| CN212432514U (en) | Pressure testing device | |
| CN216669157U (en) | Air tightness test system | |
| CN209589345U (en) | A kind of Novel pressure meter debugging tool | |
| CN109548365A (en) | A kind of liquid cooling system bellows-type draws the integrated liquid feed device of liquid pressurization | |
| CN215323334U (en) | Wide static pressure regulator | |
| CN220268525U (en) | Valve inside and tire assembly | |
| CN109900438A (en) | A kind of precision optical instrument pumping inflation leak test platform | |
| CN219035723U (en) | Electric proportion micro-pressure relief valve with self-pressure relief structure | |
| CN214578050U (en) | Variable-speed jacking cylinder | |
| CN219224071U (en) | Small-volume air bag pressure detection device | |
| CN212779815U (en) | Waterproof testing arrangement of equipment of built-in barometer | |
| CN214998081U (en) | Air source heat pump compressor exhaust protection device | |
| CN219532386U (en) | Cylinder cap seat insert gas tightness detection device | |
| CN215259201U (en) | Nitrogen charging device | |
| CN214334131U (en) | Pressure gauge calibrating device | |
| CN220508353U (en) | Waterproof detection device for secondary water supply equipment | |
| CN219776963U (en) | Main transformer capsule inflation pressure measurement and pressure relief device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |