CN104696638A - Unidirectional fixed throttle pipe joint - Google Patents
Unidirectional fixed throttle pipe joint Download PDFInfo
- Publication number
- CN104696638A CN104696638A CN201310664775.4A CN201310664775A CN104696638A CN 104696638 A CN104696638 A CN 104696638A CN 201310664775 A CN201310664775 A CN 201310664775A CN 104696638 A CN104696638 A CN 104696638A
- Authority
- CN
- China
- Prior art keywords
- plug
- pipe joint
- valve plate
- throttle valve
- throttle
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
- F16L29/02—Joints with fluid cut-off means with a cut-off device in one of the two pipe ends, the cut-off device being automatically opened when the coupling is applied
Abstract
The invention relates to a unidirectional fixed throttle pipe joint which comprises a pipe joint body, wherein external threads are formed at the two ends of the pipe joint body; the pipe joint body is internally provided with a flow passage; a throttle cavity is arranged in a position, close to an oil inlet end, of the flow passage, and is internally provided with a choke plug; internal threads are formed on the surface of the throttle cavity; external threads matched with the internal threads are formed on the choke plug; the choke plug is internally provided with a guide hole; a step extending to an axis of the flow passage is arranged on the flow passage located below the throttle cavity; a throttling valve plate is arranged in a cavity body formed by the lower surface of the choke plug and the step in a floating manner. The later replacement and maintenance of the joint are convenient, the overall replacement is avoided, and the maintenance cost is lowered.
Description
Technical field
The present invention relates to a kind of throttle pipe joint, particularly the unidirectional fixed restriction pipe joint of one.
Background technique
At present, the lifting of farm machinery upper header reaches the ceding of Taiwan by connection one-way throttle pipe joint on hydraulic jack and rises slow object of falling soon, but narrow and small due to the less and runner in the aperture of throttle orifice on valve block, very easily blocked by the solid foreign materials in fluid, make one-way throttle pipe joint lose due using function.In addition, working long hours of one-way throttle pipe joint, easily makes the borehole enlargement of the throttle orifice on valve block, makes one-way throttle pipe joint reduce the function of throttling.Existing one-way throttle pipe joint manufacturing process is complicated, and cost of production is high, and often needs to carry out integral replacing to one-way throttle pipe joint when keeping in repair.
Summary of the invention
The object of this invention is to provide a kind of structure simple, easy to maintenance, the unidirectional fixed restriction pipe joint that cost is low.
The technological scheme realizing the object of the invention is: the present invention includes two ends and be provided with externally threaded union body, be provided with runner in union body; It is characterized in that: described runner is provided with throttling chamber near oil inlet end, and throttling is provided with plug in chamber; Surface, described throttling chamber is provided with internal thread, and plug is provided with the outside thread with screw-internal thread fit, and the inside of plug is provided with pod apertures; The described runner be positioned at below throttling chamber is provided with the step to runner Axis Extension, and the lower surface of plug becomes floating in cavity and is provided with a throttle valve plate with stepped shape.
The center of above-mentioned throttle valve plate is provided with centromere discharge orifice, and the edge of throttle valve plate is provided with sector notch and the edge throttle orifice of circle distribution; When described throttle valve plate is up to the lower surface of plug, sector notch and edge throttle orifice can be blocked by the lower surface of plug.
The center of above-mentioned throttle valve plate is provided with a centromere discharge orifice, and the edge of throttle valve plate is provided with four sector notch according to 90 degree of circle distribution, and four fins formed by sector notch are equipped with an edge throttle orifice; When described throttle valve plate is up to the lower surface of plug, sector notch and edge throttle orifice are blocked by the lower surface of plug.
The aperture of above-mentioned centromere discharge orifice is φ 0.8mm ~ φ 1.2mm.
The present invention has positive effect: (1) plug of the present invention and throttling chamber adopt screw-thread fit, is convenient to install and later period maintenance, overallly when avoiding later period maintenance replaces the waste caused; (2) the present invention can realize better rising soon to delay falling effect.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of throttle valve plate in the present invention.
Embodiment
See that Fig. 1 and Fig. 2 is known, the present invention includes two ends and be provided with externally threaded union body 1, in union body 1, be provided with runner; Described runner is provided with throttling chamber near oil inlet end, in throttling chamber, is provided with plug 2; Surface, described throttling chamber is provided with internal thread, and plug 2 is provided with the outside thread with screw-internal thread fit, and the inside of plug 2 is provided with pod apertures; The described runner be positioned at below throttling chamber is provided with the step to runner Axis Extension, and the lower surface of plug 2 becomes floating in cavity and is provided with a throttle valve plate 3 with stepped shape.Because throttling chamber and plug 2 adopt screw-thread fit, plug 2 can be taken out during later period maintenance, change throttle valve plate 3, decrease maintenance cost; The center of described throttle valve plate 3 is provided with a centromere discharge orifice 31, and the edge of throttle valve plate 3 is provided with four sector notch 32 according to 90 degree of circle distribution, and four fins formed by sector notch 32 are equipped with an edge throttle orifice 33; When described throttle valve plate 3 is up to the lower surface of plug 2, sector notch 32 and edge throttle orifice 33 are blocked by the lower surface of plug 2; Described centromere discharge orifice 31 aperture is φ 0.8mm ~ φ 1.2mm.
Above-described specific embodiment; object of the present invention, technological scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a unidirectional fixed restriction pipe joint, comprise two ends and be provided with externally threaded union body (1), union body is provided with runner in (1); It is characterized in that: described runner is provided with throttling chamber near oil inlet end, in throttling chamber, is provided with plug (2); Surface, described throttling chamber is provided with internal thread, and plug (2) is provided with the outside thread with screw-internal thread fit, and the inside of plug (2) is provided with pod apertures; The described runner be positioned at below throttling chamber is provided with the step to runner Axis Extension, and the lower surface of plug (2) becomes floating in cavity and is provided with a throttle valve plate (3) with stepped shape.
2. the unidirectional fixed restriction pipe joint of one according to claim 1, it is characterized in that: described throttle valve plate (3) center is provided with centromere discharge orifice (31), the edge of throttle valve plate (3) is provided with sector notch (32) and the edge throttle orifice (33) of circle distribution; When described throttle valve plate (3) is up to the lower surface of plug (2), sector notch (32) and edge throttle orifice (33) can be blocked by the lower surface of plug (2).
3. the unidirectional fixed restriction pipe joint of one according to claim 2, it is characterized in that: the center of described throttle valve plate (3) is provided with a centromere discharge orifice (31), the edge of throttle valve plate (3) is provided with four sector notch (32) according to 90 degree of circle distribution, four fins formed is equipped with an edge throttle orifice (33) by sector notch (32); When described throttle valve plate (3) is up to the lower surface of plug (2), sector notch (32) and edge throttle orifice (33) are blocked by the lower surface of plug (2).
4. the unidirectional fixed restriction pipe joint of one according to claim 3, is characterized in that: the aperture of described centromere discharge orifice (31) is φ 0.8mm ~ φ 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664775.4A CN104696638A (en) | 2013-12-09 | 2013-12-09 | Unidirectional fixed throttle pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664775.4A CN104696638A (en) | 2013-12-09 | 2013-12-09 | Unidirectional fixed throttle pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104696638A true CN104696638A (en) | 2015-06-10 |
Family
ID=53344042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310664775.4A Pending CN104696638A (en) | 2013-12-09 | 2013-12-09 | Unidirectional fixed throttle pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104696638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246421A (en) * | 2017-08-04 | 2017-10-13 | 江苏常发农业装备股份有限公司 | A kind of one-way throttle valve and the tractor of one-way throttle valve is installed suppresses device |
| CN111089091A (en) * | 2019-12-05 | 2020-05-01 | 上海航天控制技术研究所 | Micro-flow controller and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4105147A (en) * | 1977-02-07 | 1978-08-08 | Stubbe Paul L | Extruder screw valve |
| CN2562015Y (en) * | 2002-07-16 | 2003-07-23 | 王原 | Permanent-magnet one way valves |
| CN101290071A (en) * | 2006-11-24 | 2008-10-22 | 谢夫勒两合公司 | Plate valve for tensioining systems for traction means |
| CN201628032U (en) * | 2010-03-28 | 2010-11-10 | 董玉芬 | One-way non-return pipe joint |
| CN201884823U (en) * | 2010-12-27 | 2011-06-29 | 东风汽车公司 | Throttle pipe joint |
| CN202176731U (en) * | 2011-07-16 | 2012-03-28 | Tcl空调器(中山)有限公司 | Multifunctional stop valve |
| CN202719308U (en) * | 2012-07-11 | 2013-02-06 | 宁波嘉诚液压有限公司 | Pipe joint capable of preventing backflow |
| JP2013096553A (en) * | 2011-11-04 | 2013-05-20 | Smc Corp | Check valve |
| CN203686432U (en) * | 2013-12-09 | 2014-07-02 | 江苏江淮动力股份有限公司 | One-way fixed throttling pipe joint |
-
2013
- 2013-12-09 CN CN201310664775.4A patent/CN104696638A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4105147A (en) * | 1977-02-07 | 1978-08-08 | Stubbe Paul L | Extruder screw valve |
| CN2562015Y (en) * | 2002-07-16 | 2003-07-23 | 王原 | Permanent-magnet one way valves |
| CN101290071A (en) * | 2006-11-24 | 2008-10-22 | 谢夫勒两合公司 | Plate valve for tensioining systems for traction means |
| CN201628032U (en) * | 2010-03-28 | 2010-11-10 | 董玉芬 | One-way non-return pipe joint |
| CN201884823U (en) * | 2010-12-27 | 2011-06-29 | 东风汽车公司 | Throttle pipe joint |
| CN202176731U (en) * | 2011-07-16 | 2012-03-28 | Tcl空调器(中山)有限公司 | Multifunctional stop valve |
| JP2013096553A (en) * | 2011-11-04 | 2013-05-20 | Smc Corp | Check valve |
| CN202719308U (en) * | 2012-07-11 | 2013-02-06 | 宁波嘉诚液压有限公司 | Pipe joint capable of preventing backflow |
| CN203686432U (en) * | 2013-12-09 | 2014-07-02 | 江苏江淮动力股份有限公司 | One-way fixed throttling pipe joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246421A (en) * | 2017-08-04 | 2017-10-13 | 江苏常发农业装备股份有限公司 | A kind of one-way throttle valve and the tractor of one-way throttle valve is installed suppresses device |
| CN107246421B (en) * | 2017-08-04 | 2023-08-15 | 江苏常发农业装备股份有限公司 | One-way throttle valve and tractor forced-compression device provided with same |
| CN111089091A (en) * | 2019-12-05 | 2020-05-01 | 上海航天控制技术研究所 | Micro-flow controller and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |