CN2218862Y - Automatic pressure regulating valve - Google Patents
Automatic pressure regulating valve Download PDFInfo
- Publication number
- CN2218862Y CN2218862Y CN 95204976 CN95204976U CN2218862Y CN 2218862 Y CN2218862 Y CN 2218862Y CN 95204976 CN95204976 CN 95204976 CN 95204976 U CN95204976 U CN 95204976U CN 2218862 Y CN2218862 Y CN 2218862Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- liner
- steel balls
- automatic 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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Abstract
The utility model discloses an automatic pressure regulating valve used for air compressors, comprising a valve body, a pressing screw cap, a regulating bolt, a locating screw cap, springs, a liner, a spring seat, steel balls, etc. Under the function of air pressure, the vertical angle edge of the liner is held by the steel balls to form the back cut seal; under the function of the springs, the vertical angle edge of the valve body is held to form the undercut seal to make the opening and closing of the regulating valve realized. The defect of no seal caused by the clamp of the valve core by the erosion of dust and oil in the prior art is overcome; the utility model has the advantages of good sealing performance, flexible opening and closing, no leakage, easy production by the steel balls as the valve core, convenient repair, energy saving and long service life; the cost of the whole machine is reduced.
Description
The utility model relates to the automatic pressure modulating valve of air compressor.
The automatic pressure modulating valve is that the air compressor gas receiver connects the indispensable critical piece of unloading valve, plays a part the specified gas pressure of automatic adjusting gas receiver.When the gas receiver gas pressure surpassed rated pressure, the automatic pressure modulating valve was just opened, and sends pressed gas, withstand unloading valve, unloading valve cuts out, allow piston be in the no load running state, no longer, gas receiver air pressure is no longer risen, realize the requirement of rated pressure to the gas receiver feeds air under pressure.When gas receiver gas pressure deficiency definite value, the automatic pressure modulating valve just cuts out, allow unloading valve open, send into gas receiver so that there are enough atmosphere gas to supply with Piston Compression, realize the proper functioning of air compressor, therefore this automatic pressure modulating valve not only will have good sealing, and switch flexibly will be arranged.Each other part of known automatic pressure modulating valve adopts iron and two kinds of materials of copper to make, its spool adopts cylindrical biconical surface structure, the spool of bipyramid face and valve body the right angle edge of a knife are up and down formed the keying sealed mouth, requirement because of sealing, must could guarantee both concentricitys through cooperating abrasive machining, realize seal request from face, not only difficulty of processing is big, the processing cost height, and the spool after cooperating processing and valve body must match use, and interchangeability is poor, besides air compressor is in the open-air open work in mine mostly, the corrosion easily of ironware part has a large amount of dusts again in the air compression process, greasy dirt enters gas receiver and encroaches on modulating valve, and modulating valve can not finely be sealed, cause spool to be difficult to by card open and close, also be difficult to after the damage repair, cause entire machine to use, wasted a large amount of energy and financial resources.
The utility model focuses on sealing configuration and the material and is improved at the existing in prior technology defective, a kind of good sealing effect is provided, opens and closes flexibly, is easy to process and repairs automatic pressure modulating valve easily again.
The utility model is achieved by the following scheme: the valve body that has a connecting head with press nut and be connected, the other end that presses nut connects regulates bolt and positioning screw cap, spring is located at the spring seat of liner inner chamber and regulates between the bolt, liner is connected with the valve body close-fitting, the spool of body cavity is a steel ball, and the two right angle edges of a knife with liner, valve body form upper and lower mouthful of sealing respectively.
This automatic pressure modulating valve is compared with known technology, carry out sealing configuration at first emphatically and improve, so the effect of invention has following remarkable advantage: 1. sealability is better, opens and closes flexibly, can long-term work and do not have leakages, do not have the malfunctioning phenomenon of keying, improved the complete machine performance; 2. be convenient to manufacturing, reduce the complete machine cost; 3. it is convenient to repair, and reduces the unnecessary loss of Subscriber Unit, has saved the energy, has improved working life.The utility model also improves aspect the material selecting for use, except that adopting 65Mn steel, steel ball, adopts the highi degree of accuracy Cr12 steel by spring, if all the other all adopt the HPb59-1 copper material to make, the modulating valve overall dimensions can dwindle under the equal effect reaching, so can save copper material 21%.Adopt copper material as fruit part, it is more to save copper material so.
Accompanying drawing 1 provides the utility model structural representation.
Remake by above-mentioned accompanying drawing embodiment and to describe in further detail.
From accompanying drawing 1 as can be known: the connecting head (10) on the valve body of automatic pressure modulating valve (12) is connected and fixed with gas receiver, and cross-drilled hole (8) is connected with unloading valve by copper tube, valve body (12) with press nut (5) and be threaded, the other end and adjusting bolt (1) that press nut, positioning screw cap (4) is threaded, regulate bolt and play the pressure regulating action, nut is tightly pressed in the further assembly of positioning screw cap, spring (2) is located at the spring seat (7) of liner (6) inner chamber and regulates between the bolt (1), is pressed nut with the liner of valve body close-fitting and tightens to push down and make the liner endoporus concentric with the valve body inner bore maintenance.The highi degree of accuracy steel ball (11) of body cavity forms upper and lower mouthful of sealing with the right angle edge of a knife (13) of liner (6), valve body (12), (9) respectively.(not shown) is regulated by the valve pad that liner and valve body end face junction are provided with in the gap of sealing suitable for reading.When bullet Huang (2) pressure during less than the gas receiver gas pressure, steel ball is formed sealing suitable for reading by the right angle edge of a knife (13) on jack-up and the liner, and this moment, pressed gas was exported to cross-drilled hole (8).When spring (2) pressure greater than below the steel ball during this pressure of gas receiver gas, steel ball and the valve right angle edge of a knife (9) on this forms the end opening sealing.
Dynamic structure of the present utility model is as follows: when gas pressure in the gas receiver during less than the rated pressure of adjusted good spring (2), steel ball (11) is pressed on the right angle edge of a knife (9) of valve body (12) by spring through spring seat (7), realize sealing, reach the effect that modulating valve cuts out.When gas pressure in the gas receiver during greater than the rated pressure of adjusted good spring (2), spring is compressed, steel ball (11) by pressed gas jack-up on the right angle edge of a knife (13) of liner (6), realize that through hole (3) does not have leakage, reach the effect that modulating valve is opened, pressed gas from connecting head (10) by steel ball and the formed gap of the valve body right angle edge of a knife (9), lead to unloading valve from cross-drilled hole (8), make it to close, last air compressor is in the no load running state, guarantee that gas pressure is constant in the gas receiver, steel ball (11) allows little pressure gas to discharge from through hole (3) in take-off moment.
Claims (1)
1, a kind of automatic pressure modulating valve, the valve body (12) that has connecting head (10) with press nut (5) and be connected, the other end that presses nut connects regulates bolt (11) and positioning screw cap (4), spring (2) is located at the spring seat (7) of liner (6) inner chamber and regulates between the bolt (1), liner (6) is connected with valve body (12) close-fitting, be provided with spool in the valve body, it is characterized in that described spool is steel ball (11), it forms upper and lower mouthful of sealing with the right angle edge of a knife (3) of liner (6), valve body (12), (9) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204976 CN2218862Y (en) | 1995-04-18 | 1995-04-18 | Automatic pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204976 CN2218862Y (en) | 1995-04-18 | 1995-04-18 | Automatic pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2218862Y true CN2218862Y (en) | 1996-01-31 |
Family
ID=33857327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95204976 Expired - Fee Related CN2218862Y (en) | 1995-04-18 | 1995-04-18 | Automatic pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2218862Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1769749B (en) * | 2004-07-30 | 2010-12-22 | 艾默生电气公司 | Electromagnetic valve for liquid flow |
| CN102825053A (en) * | 2012-09-11 | 2012-12-19 | 绿田机械股份有限公司 | No-load starting high-pressure pipeline pressure relief mechanism of high-pressure cleaning machine |
| CN115285522A (en) * | 2022-08-05 | 2022-11-04 | 广东太力科技集团股份有限公司 | Air valve |
-
1995
- 1995-04-18 CN CN 95204976 patent/CN2218862Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1769749B (en) * | 2004-07-30 | 2010-12-22 | 艾默生电气公司 | Electromagnetic valve for liquid flow |
| CN102825053A (en) * | 2012-09-11 | 2012-12-19 | 绿田机械股份有限公司 | No-load starting high-pressure pipeline pressure relief mechanism of high-pressure cleaning machine |
| CN102825053B (en) * | 2012-09-11 | 2017-02-22 | 绿田机械股份有限公司 | No-load starting high-pressure pipeline pressure relief mechanism of high-pressure cleaning machine |
| CN115285522A (en) * | 2022-08-05 | 2022-11-04 | 广东太力科技集团股份有限公司 | Air valve |
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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 |