CN104514886B - A kind of sealing mechanism - Google Patents
A kind of sealing mechanism Download PDFInfo
- Publication number
- CN104514886B CN104514886B CN201410677488.1A CN201410677488A CN104514886B CN 104514886 B CN104514886 B CN 104514886B CN 201410677488 A CN201410677488 A CN 201410677488A CN 104514886 B CN104514886 B CN 104514886B
- Authority
- CN
- China
- Prior art keywords
- sealing device
- sealing
- pipeline
- thread
- flow
- 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.)
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
- F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
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- 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
- F16L17/00—Joints with packing adapted to sealing by fluid pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Architecture (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention is a kind of novel seal mechanism, solve traditional overflowing mechanism and sealing problem occurs along with the increase of flow, the central idea of the present invention is exactly to allow junction sealing between two flow passage components strengthen along with the increase of fluid flow, to solve leakage problem during its big flow.Its operation principle is that sealing device is attached in the form of a bolt with pipeline, when fluid passes through, fluid is to one torque of sealing device, make sealing device rotate to move to junction, and there is rubber ring one end of sealing device, along with the rotary motion of sealing device, sealing device extruding rubber ring, thus play the effect of sealing, and flow is the biggest, and its sealing is the best.
Description
Technical field
The present invention is mainly placed in the parts junction of fluid delivery system, and its sealing is along with the increase of conveying fluid flow
And strengthen, thus solve the leakage problem of the connections such as some pipeline, it is greatly improved security.
Background technology
Keep the necessary environment that machine components normally work.Sealing be prevent fluid or solia particle leak between adjacent faying face with
And prevent introduced contaminants such as dust from invading the parts within machinery equipment or measure with moisture etc., keep machine components normally to work
Necessary environment.Some occasion, the degree of reliability of sealing is particularly important, such as aircraft and spaceborne sealing, poison gas, poison
Liquid storage tank, the sealing of inflammable, explosion hazard gases storage tank etc..That causes leakage underlying reason is that the pressure differential sealed inside and outside position
Or the flowing of concentration official post fluid, and on sealing surface, have gap, make fluid overflow.For different types of sealing, action principle
Different.But we commonly use transport the pipeline of fluid and some cross stream operating mechanism's parts junction often with
The increase of conveying fluid flow and sealing problem occur, leakage occur, some occasion can produce substantial risk.Therefore need badly and set
Count a kind of new sealing mechanism and solve these leakage problems.
Summary of the invention
It is an object of the invention to redesign a kind of brand-new sealing mechanism, solve conventional overcurrent mechanism along with the increase of flow
Sealing problem occur, the central idea of the present invention is exactly to allow the junction of flow passage components etc. along with its sealing of increase of fluid flow
Strengthen therewith, to solve leakage problem during its big flow.
The present invention is a kind of sealing mechanism, and its operation principle is that sealing device is attached in the form of a bolt with pipeline, works as fluid
By time, fluid, to one torque of sealing device, makes sealing device rotate thus moves to junction, and one end of sealing device
There is rubber ring, along with the rotary motion of sealing device, sealing device extruding rubber ring, thus play the effect of sealing, Er Qieliu
Measuring the biggest, its sealing is the best.
The present invention is mainly by pipeline (1), rubber ring (2), and sealing device (3) forms.This sealing device has outer spiral shell on (3)
There is internal thread line and pipeline (1) one end, use thread forms to connect；This sealing device (3) and the thread segment of pipeline (1)
Shape uses rectangular thread, trapezoidal thread or buttless thread；Use the form of multi start thread, generally (2～4 line)；Its screw thread liter
Angle θ selects θ=(0.90-0.99) arctan (μ), can meet self-locking property, wherein μ be sealing device (3) and pipeline (1) it
Between threaded coefficient of friction；One end of this sealing device (3) is equipped with rubber ring (2), this rubber ring (2) half part
Being embedded in sealing device (3), half part is outside；Rubber ring (2) diameter maximum D of exposed portionxSlightly larger than sealing device
(3) diameter Dm, i.e. Dm=Dx+ (0.5～4.0) mm；This sealing device (3) is internal helical blade, and the number of blade is big
In equal to 2, it is uniformly distributed in sealing device (3), and its hand of spiral is identical with the thread rotary orientation of sealing device (3),
Width h=(0.05～the 0.15) D of its helical bladem；Length L=(0.2-1.0) D of this sealing device (3)m；Pipeline (1)
Interior inside lead is more than the lead of sealing device (3)；Pipeline (1) is near port distance L1=(0～0.1) DmPlace
Non-threaded, sealing device (3) is near port distance L2=(0.9～1.0) L1Place's non-threaded, sealing device port diameter is Dm。
Contrast prior art, beneficial effects of the present invention: this sealing mechanism uses brand-new design, improves traditional overflowing mechanism
Sealing problem occur along with the increase of flow, this sealing mechanism is strengthened the most therewith along with its sealing of increase of fluid flow, can
To solve leakage problem during big flow.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram that the present invention installs；
Fig. 2 is the tomograph of the present invention；
Fig. 3 is the overall structure schematic diagram of sealing mechanism of the present invention；
Fig. 4 is the partial enlarged drawing of pipeline of the present invention；
Detailed description of the invention
Referring to the drawings shown in 1, being arranged on pipeline by sealing mechanism and work, be attached with thread forms, sealing mechanism is complete
It is arranged in pipeline, and pipeline (4) internal diameter is less than or equal to sealing mechanism internal diameter.
Referring to the drawings shown in 1,3,4, this sealing mechanism is mainly by pipeline (1), rubber ring (2), and sealing device (3) forms.
This sealing device (3) and pipeline (1) connect with thread forms, this sealing device (3) and the thread segment shape of pipeline (1)
Shape uses rectangular thread, trapezoidal thread or buttless thread；Use the form of multi start thread, generally (2～4 line)；Its lead angle
θ selects θ=(0.98) arctan (μ) (μ is coefficient of friction threaded between sealing device (3) and pipeline (1)), can
Meet self-locking property；One end of this sealing device (3) is equipped with rubber ring (2), and this rubber ring (2) half is partially embedded at sealing
In device (3), half part is outside；Rubber ring (2) diameter maximum D of exposed portionxSlightly larger than sealing device (3)
Diameter Dm, select Dm=Dx+2mm；This sealing device (3) is internal helical blade, and the number of blade is more than or equal to 2, selects leaf
Sheet number is 3, and it is uniformly distributed in sealing device (3), and its hand of spiral is identical with the thread rotary orientation of sealing device (3),
The width h=0.15D of its helical bladem；The a length of L of this sealing device (3), takes L=0.6Dm；Interior in pipeline (1)
Lead is more than the lead of sealing device (3)；Pipeline (1) is near port distance L1=0.05DmPlace's non-threaded, its
A diameter of Dm；Sealing device (3) is near port distance L2=0.9L1Place's non-threaded, sealing device port diameter is Dm。
Claims (2)
1. a sealing mechanism, it is mainly by pipeline (1), rubber ring (2), and sealing device (3) forms, is primarily characterized in that:
This sealing device (3) and pipeline (1) connect with thread forms, and the screw thread of sealing device (3) and pipeline (1) uses rectangle
Screw thread, trapezoidal thread or buttless thread, use the form of multi start thread, lead angle θ=(0.90-0.99) arctan μ；Seal dress
Putting (3) inside and be provided with helical blade, the number of blade is more than or equal to 2, and it is uniformly distributed in sealing device (3), its spiral side
To identical with the thread rotary orientation of sealing device (3), width h=(0.05～the 0.15) D of its helical bladem, sealing device port
External diameter is Dm, μ is coefficient of friction threaded between sealing device (3) and pipeline (1).
2. sealing mechanism as claimed in claim 1, it is characterised in that: the inside lead in pipeline (1) is more than sealing device (3)
Lead；Pipeline (1) is near port distance L1=(0～0.1) DmSection non-threaded, sealing device (3) near port away from
From L2=(0.9～1.0) L1Section non-threaded, sealing device port outside diameter is Dm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677488.1A CN104514886B (en) | 2014-11-21 | 2014-11-21 | A kind of sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410677488.1A CN104514886B (en) | 2014-11-21 | 2014-11-21 | A kind of sealing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104514886A CN104514886A (en) | 2015-04-15 |
| CN104514886B true CN104514886B (en) | 2016-09-07 |
Family
ID=52790601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410677488.1A Active CN104514886B (en) | 2014-11-21 | 2014-11-21 | A kind of sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104514886B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202962U (en) * | 1985-07-16 | 1986-05-07 | 张新强 | Pipes joint |
| CN2050522U (en) * | 1989-03-20 | 1990-01-03 | 王建东 | Sealed tensile pipe coupling |
| JPH08285153A (en) * | 1995-04-13 | 1996-11-01 | Nippon Steel Corp | Sealing ring to be used in oil well pipe joint |
| CN2328845Y (en) * | 1998-03-03 | 1999-07-14 | 吉林铁路分局科技开发公司 | Pipe fitting for water central heating |
| CN2388459Y (en) * | 1999-08-02 | 2000-07-19 | 张胜 | Internal screw compressed water supply and drain pipe fittings |
-
2014
- 2014-11-21 CN CN201410677488.1A patent/CN104514886B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104514886A (en) | 2015-04-15 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |