CN101469777B - Air pressure adjusting device for gas piping - Google Patents
Air pressure adjusting device for gas piping Download PDFInfo
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- CN101469777B CN101469777B CN2007103044603A CN200710304460A CN101469777B CN 101469777 B CN101469777 B CN 101469777B CN 2007103044603 A CN2007103044603 A CN 2007103044603A CN 200710304460 A CN200710304460 A CN 200710304460A CN 101469777 B CN101469777 B CN 101469777B
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Abstract
The invention relates to a pressure regulating device used for gas pipelines, comprising a valve body of a needle valve, a valve core of the needle valve, an exhaust valve bar, an exhaust valve cap, a compression spring and an O-shaped rubber ring which are coaxially arranged, wherein the valve body of the needle valve is of tube-shaped, and the outer surface of which is provided with screws for connecting with a three-way pipe on the outside gas pipelines; the valve core of the needle valve is approximately of T-shaped and sleeved in the valve body of the needle valve from top to bottom; the exhaust valve bar is of inverse T-shaped and sleeved in the valve core of the needle valve from top to bottom, and the compression spring is sleeved in the gap between valve core of the needle valve and the upper part of the exhaust valve bar; the O-shaped rubber ring is arranged between a flange on the lower end of the exhaust valve bar and a limit end surface contacting with the lower end of the valve core of the needle valve; the exhaust valve cap is connected to the top end of the valve through screws, and the central part on the lower end surface of the exhaust valve cap is provided with a round groove for placing the compression spring, and the lower end surface of the exhaust valve cap is provided with groove in radial direction. The invention is simple in structure, is convenient to be manufactured, and can regulate the pressure singlehandedly.
Description
Technical field
The present invention relates to be applied to the pressure controlled pressure regulation needle-valve of malleation or negative pressure air system and the structure of rapid escape valve, particularly a kind of barometric control unit that is used on the gas piping.
Background technique
Existing a lot of malleation or negative pressure handheld device, the realization of pressure adjusting and fast pressure relief, what most cases adopted is a pressure regulation needle-valve and an outlet valve, and the both is an independent structures, be subjected to the restriction of installation dimension, can be very difficult if operate two valves simultaneously with a hand, quite inconvenience in actual applications.
The structure of existing pressure regulation needle-valve, as depicted in figs. 1 and 2, wherein, the structure when Fig. 1 closes for general pressure regulation needle-valve, comprising: airflow direction is represented in needle-valve spool 1, needle valve body 2 and three-way union 3, arrow; Structure when Fig. 2 opens pressure regulation for general pressure regulation needle-valve, when turn needle-valve spool 1, the annular space is formed on the bottom between needle-valve spool 1, the needle valve body 2, the air-flow of three-way union 3 of flowing through is understood some and is discharged via radially hole on the needle valve body 2, the adjusting of three-way union 3 internal pressures that realize flowing through.
The structure of existing outlet valve, as shown in Figure 3 and Figure 4, wherein, the structure when Fig. 3 is general exhaust valve closure comprises: exhaust bonnet 4, pressure spring 5, exhasut valve stem 6, exhaust valve 7, sealing O type circle 8 and three-way union 3, arrow is represented airflow direction; Structure when Fig. 4 opens for general outlet valve when pressing exhaust bonnet 4, drives exhasut valve stem 6 and moves down with sealing O type circle 8, makes air-flow through the space between exhasut valve stem 6 and the exhaust valve 7, is discharged by the radial hole on the exhaust valve 4.
Summary of the invention
The objective of the invention is, a kind of barometric control unit that is used on the gas piping is provided,, overcome singlehanded difficulty of operating pressure regulation needle-valve and outlet valve simultaneously by the composite structure of a kind of pressure regulation needle-valve and rapid escape valve.
For achieving the above object, a kind of barometric control unit that is used on the gas piping provided by the invention is characterized in that, this device comprises needle valve body, needle-valve spool, exhasut valve stem, exhaust bonnet, pressure spring and the O type rubber ring of coaxial setting; Described needle valve body is cylindrical, and its outer surface is provided with and is used for the screw thread that is connected with three-way pipe on the extraneous gas piping; The lower end of this needle valve body is arranged with O type rubber ring, by compressing the sealing between this O type rubber ring assurance needle valve body and the three-way pipe; Described needle-valve spool is roughly T-shaped, from top to bottom is sheathed in the described needle valve body; The outer surface on described needle-valve spool top and the upper inside surface of described needle valve body are threaded, leave the gap between the outer surface of described needle-valve spool bottom and the lower inner surface of described needle valve body, described needle-valve spool and described needle valve body lower end mouth cooperation place are conical surface; Described needle-valve spool is a hollow, and the internal surface of needle-valve spool bottom is provided with flange, is used for being slidingly matched with exhasut valve stem; Described needle-valve spool bottom also offers two radial holes, and these two radial holes lay respectively at the upside and the downside of flange; Described exhasut valve stem is inverted T-shaped, be sheathed on from the bottom to top in the described needle-valve spool, gap location between needle-valve spool and exhasut valve stem top is arranged with pressure spring, and the lower end of this pressure spring is butted on the formed shoulder hole of flange that the internal surface of needle-valve spool bottom is provided with; Be provided with O type rubber ring between the spacing end face of the following end in contact of the flange of this exhasut valve stem lower end and needle-valve spool; Described exhaust bonnet is by being threaded in the top of exhasut valve stem, and the center portion of the lower end surface of this exhaust bonnet offers the circular groove that is used to be nested with pressure spring, and the lower end surface of this exhaust bonnet radially is provided with groove and is communicated with circular groove.
The top of needle valve body of the present invention and needle-valve spool is to be threaded, counterclockwise turn needle-valve spool when using, can separate relatively in the axial direction between the two, the conical surface place of lower end forms the gap of annular, the distance decision that the size in gap is axially separated by both, the so just adjusting of the pressure of realizing; The needle-valve spool serves as the effect of rapid escape valve body simultaneously.
As a kind of improvement of the present invention, the longitudinal section of the upper end portion of described needle-valve spool is H shape, and its upper-end surface is spacing as the step of exhaust bonnet.
Improve further as the present invention, the lower end surface of described exhaust bonnet groove radially is cross.
The invention has the advantages that, the barometric control unit that is used on the gas piping of the present invention, total is installed on the vacuum suction pipeline by the screw thread on the needle valve body, guarantees sealing with O type rubber ring.When needs are regulated pipeline air pressure, turn needle-valve spool, needle-valve is opened, and ambient atmos enters pipeline via two radial holes on the needle-valve spool; When the quick exhaust of needs, press the exhaust bonnet, drive exhasut valve stem, make O type rubber ring leave the lower end surface of needle-valve spool, realize quick exhaust, unclamp the exhaust bonnet, under the effect of pressure spring, the moving exhasut valve stem of outlet valve hatband resets; And the present invention is simple in structure, compact, is easy to processing, cleaning for convenience detach, and the Pressure Regulation Exhaust action is singlehanded just can be realized.
Description of drawings
Fig. 1 is the structural representation of pressure regulation needle-valve of the prior art when closing;
Fig. 2 is the structural representation of pressure regulation needle-valve of the prior art when opening pressure regulation;
Structural representation when Fig. 3 is an exhaust valve closure of the prior art;
Fig. 4 is the structural representation of outlet valve of the prior art when opening;
Fig. 5 is the cut-away view of barometric control unit structure of the present invention;
Fig. 6 is the three-dimensional exploded view of barometric control unit structure of the present invention;
The structural representation of Fig. 7 a～d needle-valve spool of the present invention;
The structural representation of Fig. 8 a～d exhaust bonnet of the present invention.
The accompanying drawing sign
1, needle-valve spool 2, needle valve body 3, three-way union
4, exhaust bonnet 5, pressure spring 6, exhasut valve stem
7, exhaust valve 8, sealing O type circle
Embodiment
Shown in Fig. 5～8, the barometric control unit that is used on the gas piping of the present invention is a kind of pressure regulation needle-valve and rapid escape valve composite structure, is used for the pressure regulation and the exhaust fast of vacuum suction pipeline.Form by O type rubber ring 8, exhasut valve stem 6, needle-valve spool 1, needle valve body 2, exhaust bonnet 4 and pressure spring 5, exhasut valve stem 6 and exhaust bonnet 4 are by being threaded, pressure spring 5 is enclosed within on the exhasut valve stem 6, pass the endoporus of needle-valve spool 1, O type rubber ring is arranged between exhasut valve stem 6 and the needle-valve spool 1, needle-valve spool 1 and needle valve body 2 are directly by being threaded, the cooperation place, lower end is a conical surface, needle valve body 2 outer surfaces are useful on and the extraneous screw thread of installing, and an end of needle valve body 2 is with O type rubber ring 8.An axial shoulder hole is arranged, two radial holes on the needle-valve spool 1.
And have a following characteristics:
1, keep sealing with O type rubber ring between exhasut valve stem 6 and the needle-valve spool 1, needle valve body 2 and extraneous pipeline guarantee to seal by compressing O type rubber ring 8 by being threaded.Keep sealing by O type rubber ring 8 between needle-valve spool 1 and spacing end face that exhasut valve stem 6 contacts.
2, all parts are assemblied on the same axis.
3, needle-valve spool 1 axially has a shoulder hole, and exhasut valve stem 6 is by this shoulder hole, in the aperture less place both radially slide cooperation, and have step spacing at end face.
4, needle-valve spool 1 has two radial holes, gas was from the gap between needle-valve spool 1 and the needle valve body 2 when system's malleation was regulated, radial hole on needle-valve spool 1 flows out by shoulder hole axial on the needle-valve spool 1 again, and is opposite when gas flow was with malleation when system's negative pressure was regulated.
Adopt said structure, operator can operate barometric control unit of the present invention simultaneously with a hand, have realized flexible pressure regulation and fast pressure relief.In addition, the structure of each part is all very simple in the said structure, convenient processing, and the installation between the part is installed and cleans very convenient all by the realization that is threaded.
Claims (3)
1. a barometric control unit that is used on the gas piping is characterized in that, this device comprises needle valve body, needle-valve spool, exhasut valve stem, exhaust bonnet, pressure spring and the O type rubber ring of coaxial setting;
Described needle valve body is cylindrical, and its outer surface is provided with and is used for the screw thread that is connected with three-way pipe on the extraneous gas piping; The lower end of this needle valve body is arranged with O type rubber ring, by compressing the sealing between this O type rubber ring assurance needle valve body and the three-way pipe;
Described needle-valve spool is roughly T-shaped, from top to bottom is sheathed in the described needle valve body; The outer surface on described needle-valve spool top and the upper inside surface of described needle valve body are threaded, leave the gap between the outer surface of described needle-valve spool bottom and the lower inner surface of described needle valve body, described needle-valve spool and described needle valve body lower end mouth cooperation place are conical surface; Described needle-valve spool is a hollow, and the internal surface of needle-valve spool bottom is provided with flange, is used for being slidingly matched with exhasut valve stem; Described needle-valve spool bottom also offers two radial holes, and these two radial holes lay respectively at the upside and the downside of flange;
Described exhasut valve stem is inverted T-shaped, be sheathed on from the bottom to top in the described needle-valve spool, gap location between needle-valve spool and exhasut valve stem top is arranged with pressure spring, and the lower end of this pressure spring is butted on the formed shoulder hole of flange that the internal surface of needle-valve spool bottom is provided with; Be provided with O type rubber ring between the spacing end face of the following end in contact of the flange of this exhasut valve stem lower end and needle-valve spool;
Described exhaust bonnet is by being threaded in the top of exhasut valve stem, and the center portion of the lower end surface of this exhaust bonnet offers the circular groove that is used to be nested with pressure spring, and the lower end surface of this exhaust bonnet radially is provided with groove and is communicated with circular groove.
2. the barometric control unit that is used on the gas piping according to claim 1 is characterized in that the longitudinal section of the upper end portion of described needle-valve spool is H shape, and its upper-end surface is spacing as the step of exhaust bonnet.
3. the barometric control unit that is used on the gas piping according to claim 1 and 2 is characterized in that, the lower end surface of described exhaust bonnet groove radially is cross.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103044603A CN101469777B (en) | 2007-12-28 | 2007-12-28 | Air pressure adjusting device for gas piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103044603A CN101469777B (en) | 2007-12-28 | 2007-12-28 | Air pressure adjusting device for gas piping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101469777A CN101469777A (en) | 2009-07-01 |
| CN101469777B true CN101469777B (en) | 2011-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007103044603A Active CN101469777B (en) | 2007-12-28 | 2007-12-28 | Air pressure adjusting device for gas piping |
Country Status (1)
| Country | Link |
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| CN (1) | CN101469777B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032441B (en) * | 2010-11-18 | 2012-08-29 | 凯迈（洛阳）气源有限公司 | Cylinder valve |
| CN102562708A (en) * | 2010-12-14 | 2012-07-11 | 海洋王照明科技股份有限公司 | Telescopic cylinder and lighting device comprising same |
| CN103671999B (en) * | 2013-11-21 | 2016-08-24 | 宁波方太厨具有限公司 | Fuel gas plug valve with gapless knob structure |
| CN109139942A (en) * | 2018-09-30 | 2019-01-04 | 苏州普费勒精密量仪有限公司 | A kind of air inlet adjustable valve and pneumatic-to-current converter |
| CN109882610B (en) * | 2019-04-11 | 2024-11-01 | 悟空科学仪器(上海)有限公司 | Evacuation valve and liquid chromatograph |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020096216A1 (en) * | 2001-01-20 | 2002-07-25 | Stanely Gabrel | Gas pressure regulator |
| CN2566080Y (en) * | 2002-07-26 | 2003-08-13 | 冶金工业部建筑研究总院 | Pressure-releasing valve |
| CN2586028Y (en) * | 2002-11-29 | 2003-11-12 | 上海绍丰实验动物设备有限公司 | Regulating valve |
| CN2672406Y (en) * | 2003-12-30 | 2005-01-19 | 徐步光 | Safety valve |
| CN2718332Y (en) * | 2004-07-15 | 2005-08-17 | 高远水 | Hand-operated exhauster |
| CN2823733Y (en) * | 2005-09-22 | 2006-10-04 | 吴培君 | Pressure regulating steam safety valve |
| CN201155597Y (en) * | 2008-01-18 | 2008-11-26 | 北京奥麦特科技有限公司 | Air pressure adjusting device |
-
2007
- 2007-12-28 CN CN2007103044603A patent/CN101469777B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020096216A1 (en) * | 2001-01-20 | 2002-07-25 | Stanely Gabrel | Gas pressure regulator |
| CN2566080Y (en) * | 2002-07-26 | 2003-08-13 | 冶金工业部建筑研究总院 | Pressure-releasing valve |
| CN2586028Y (en) * | 2002-11-29 | 2003-11-12 | 上海绍丰实验动物设备有限公司 | Regulating valve |
| CN2672406Y (en) * | 2003-12-30 | 2005-01-19 | 徐步光 | Safety valve |
| CN2718332Y (en) * | 2004-07-15 | 2005-08-17 | 高远水 | Hand-operated exhauster |
| CN2823733Y (en) * | 2005-09-22 | 2006-10-04 | 吴培君 | Pressure regulating steam safety valve |
| CN201155597Y (en) * | 2008-01-18 | 2008-11-26 | 北京奥麦特科技有限公司 | Air pressure adjusting device |
Non-Patent Citations (2)
| Title |
|---|
| JP昭62-31778A 1987.02.10 |
| JP特开平10-252912A 1998.09.22 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101469777A (en) | 2009-07-01 |
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Owner name: BEIJING HUIFUKANG MEDICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING AOMAITE SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150106 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 100080 HAIDIAN, BEIJING TO: 100176 DAXING, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150106 Address after: 100176 Daxing District Beijing economic and Technological Development Zone, Kangding street, No. 11, building No. 20 Patentee after: Beijing 3H Medical Technology Co., Ltd. Address before: 100080 Beijing City, Haidian District Zhichun Road No. 49 block B 2003 Sigma Patentee before: Beijing Aomaite Science & Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 100176 Daxing District Beijing economic and Technological Development Zone, Kangding street, No. 11, building No. 20 Patentee after: Beijing 3H Medical Technology Co., Ltd. Address before: 100176 Daxing District Beijing economic and Technological Development Zone, Kangding street, No. 11, building No. 20 Patentee before: Beijing 3H Medical Technology Co., Ltd. |
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| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Two street 100176 Beijing economic and Technological Development Zone in 8 Hospital No. 18 building 3 layer 4 layer 5 layer 504-520 room Patentee after: Beijing 3H Medical Technology Co., Ltd. Address before: 100176 Daxing District Beijing economic and Technological Development Zone, Kangding street, No. 11, building No. 20 Patentee before: Beijing 3H Medical Technology Co., Ltd. |
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Effective date of registration: 20210609 Address after: 100176 2nd floor, building 18, yard 8, Liangshuihe 2nd Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: BEIJING ANHEJIABAOER TECHNOLOGY Co.,Ltd. Address before: 100176 room 504-520, 3 / F, 4 / F, 5 / F, building 18, yard 8, Liangshuihe Second Street, Beijing Economic and Technological Development Zone Patentee before: BEIJING 3H MEDICAL TECHNOLOGY Co.,Ltd. |