CN201155597Y - Air pressure adjusting device - Google Patents
Air pressure adjusting device Download PDFInfo
- Publication number
- CN201155597Y CN201155597Y CNU2008200786090U CN200820078609U CN201155597Y CN 201155597 Y CN201155597 Y CN 201155597Y CN U2008200786090 U CNU2008200786090 U CN U2008200786090U CN 200820078609 U CN200820078609 U CN 200820078609U CN 201155597 Y CN201155597 Y CN 201155597Y
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- China
- Prior art keywords
- needle
- valve
- valve spool
- valve body
- described needle
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- 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 - Lifetime
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Abstract
The utility model relates to an atmospheric pressure governing device, comprising a needle valve body, a needle valve plug, an exhaust valve stem, an exhaust valve cap, a compression spring and an O-shaped rubber band which are all arranged coaxially; the needle valve body is a round tubular shape; the outer surface of the needle valve body is provided with a screw thread used to connect with a three-way pipe on an external gas pipeline; the needle valve plug is basically T-shaped and sheathed in the needle valve body from top to bottom; the exhaust valve stem is reverse-T-shaped and sheathed in the needle valve plug form bottom to top; the compression spring is sheathed on the clearance between the needle valve plug and the top of the exhaust valve stem; the O-shaped rubber band is arranged between the limit end surfaces in which the flange on the lower end of the exhaust valve stem is contracted with the lower end of the needle valve plug; the exhaust valve cap is connected with the top end of the exhaust valve stem through the screw thread; the central position of the lower end surface of the exhaust valve cap is provided with a circular groove used for covering the compression spring; the groove is also arranged radially on the lower end surface of the exhaust valve cap. The atmospheric pressure governing device has the advantages of simple structure, easy processing and one-handed pressure regulation.
Description
Technical field
The utility model relates to the pressure controlled pressure regulation needle-valve that is applied to malleation or negative pressure air system and the structure of rapid escape valve, particularly a kind of barometric control unit.
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.
The model utility content
The purpose of this utility model is, a kind of barometric control unit is provided, and by the composite structure of a kind of pressure regulation needle-valve and rapid escape valve, overcomes singlehanded difficulty of operating pressure regulation needle-valve and outlet valve simultaneously.
For realizing above-mentioned model utility purpose, the barometric control unit that the utility model provides 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, is sheathed on from the bottom to top in the described needle-valve spool, and the 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; 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 utility model 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 utility model, 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 utility model, the lower end surface of described exhaust bonnet groove radially is cross.
Advantage of the present utility model is, the barometric control unit that is used on the gas piping of the present utility model, and 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 utility model 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 utility model;
Fig. 6 is the three-dimensional exploded view of barometric control unit structure of the present utility model;
The structural representation of Fig. 7 a～d needle-valve spool of the present utility model;
The structural representation of Fig. 8 a～d exhaust bonnet of the present utility model.
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, barometric control unit of the present utility model 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 utility model 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 kind of barometric control unit 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, is sheathed on from the bottom to top in the described needle-valve spool, and the 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; 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, barometric control unit 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, barometric control unit 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 |
|---|---|---|---|
| CNU2008200786090U CN201155597Y (en) | 2008-01-18 | 2008-01-18 | Air pressure adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200786090U CN201155597Y (en) | 2008-01-18 | 2008-01-18 | Air pressure adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155597Y true CN201155597Y (en) | 2008-11-26 |
Family
ID=40103380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200786090U Expired - Lifetime CN201155597Y (en) | 2008-01-18 | 2008-01-18 | Air pressure adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155597Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469777B (en) * | 2007-12-28 | 2011-03-16 | 北京奥麦特科技有限公司 | Air pressure adjusting device for gas piping |
| CN115288823A (en) * | 2022-08-05 | 2022-11-04 | 山东赛马力发电设备有限公司 | Pressure relief type engine exhaust valve for side wall air outlet |
-
2008
- 2008-01-18 CN CNU2008200786090U patent/CN201155597Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469777B (en) * | 2007-12-28 | 2011-03-16 | 北京奥麦特科技有限公司 | Air pressure adjusting device for gas piping |
| CN115288823A (en) * | 2022-08-05 | 2022-11-04 | 山东赛马力发电设备有限公司 | Pressure relief type engine exhaust valve for side wall air outlet |
| CN115288823B (en) * | 2022-08-05 | 2024-07-19 | 江西维德机械制造有限公司 | Pressure relief type engine exhaust valve for side wall air outlet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING HUIFUKANG MEDICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING AOMAITE SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20141223 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100080 HAIDIAN, BEIJING TO: 100176 DAXING, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141223 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. |
|
| C56 | Change in the name or address of the patentee | ||
| 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. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: In Beijing economic and Technological Development Zone, two street 100176 8 Beijing City 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. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081126 |
|
| CX01 | Expiry of patent term |