CN205483450U - Sealing mechanism of inboard leak hunting of PE three way connection - Google Patents
Sealing mechanism of inboard leak hunting of PE three way connection Download PDFInfo
- Publication number
- CN205483450U CN205483450U CN201620253942.5U CN201620253942U CN205483450U CN 205483450 U CN205483450 U CN 205483450U CN 201620253942 U CN201620253942 U CN 201620253942U CN 205483450 U CN205483450 U CN 205483450U
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- China
- Prior art keywords
- end cover
- supervisor
- bottom end
- assembly
- wall sealing
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Abstract
The utility model discloses a sealing mechanism of inboard leak hunting of PE three way connection relates to sealing performance test machine field, includes upper end cover subassembly, bottom end cover subassembly, clamping ring subassembly and end cover actuating mechanism at least. The utility model discloses a solve large -scale three way connection and adopt the exit shutoff, inside cavity is great, the baroceptor is difficult for the problem that the judgement was revealed a little, proposes one kind and stretches into the inside leak hunting of PE three way connection, dwindles the sealing mechanism who tests the cavity, carries the high atmospheric pressure transducer sensitivity.
Description
Technical field
This utility model relates to sealing performance testing machine field, particularly relates to the sealing mechanism of leak detection inside a kind of PE three way cock.
Background technology
Three way cock, as pipe fitting, conduit coupling, is commonly used in main pipeline and wants at branched pipe, for medium shunt.The mouth pipe of industrial PE (polyethylene) three way cock forms typically by pipe fitting welding, and weld leakage situation may occur because of reasons such as fusion temp, docking out-of-flatnesses, and three way cock reveals and is concentrated in weld.And it is as the important conduit coupling of gas ductwork, occur that leakage has bigger potential safety hazard, require before therefore using to carry out experiments of sealing performance with compressed gas for medium.
At present, three way cock carries out experiments of sealing performance and generally uses blister method and baroceptor monitoring method, use baroceptor monitoring method, often three outlets of three way cock are blocked, internal cavities is pressurized to pressurize after preset value, changed by baroceptor monitoring air pressure inside, it is judged that whether cavity internal gas pressure reduces, and whether threeway leaks.But some three way cock's volume is relatively big, if only blocked in three exits of three way cock, internal cavities can be relatively big, and minute leakage is less on the impact of air pressure inside, and baroceptor is susceptible to erroneous judgement.
Utility model content
This utility model uses exit to block to solve big model three way cock, internal cavities is bigger, baroceptor is difficult to judge the problem of micro-leakage, proposes the internal leak detection of a kind of PE of stretching into three way cock, reduces test cavity, the sealing mechanism of raising baroceptor sensitivity.
To achieve these goals, this utility model by the following technical solutions: inside a kind of PE three way cock leak detection sealing mechanism, at least include upper end cover assembly, bottom end cover assembly, pressure ring assembly and end cap drive mechanism；Described upper end cover assembly is divided into upper end cover and connecting shaft, and described upper end cover and connecting shaft are all in cylinder and central axes, along central axis section view in " T " font；Described bottom end cover assembly is followed successively by bottom end cover, connecting portion and supervisor's inner wall sealing block from top to bottom, bottom end cover is and the cylinder of the external diameters such as upper end cover, bottom end cover lower surface is connected by the upper surface of connecting portion with supervisor's inner wall sealing block, supervisor's inner wall sealing block is overall in cylinder, upper surface is to be responsible for the cambered surface that inwall mates with three way cock, and bottom end cover and supervisor's inner wall sealing block central axes, it is I-shaped along central axis section view；At least one test gas channels it is additionally provided with on described supervisor's inner wall sealing block；Described bottom end cover assembly runs through along central axis and is provided with the through hole that the connecting shaft with upper end cover assembly mates, connecting shaft is from top to bottom through the central through hole of bottom end cover assembly, and fix with one piece of connecting plate, bottom end cover assembly is limited between upper end cover and connecting plate slidably；Being designed with oblique outer edge on described upper end cover and bottom end cover opposite face, two oblique outer edges form the spacing extruding groove of sealing ring, are provided with a mouth seal of tube circle in spacing extruding groove；Offer an annular sealing ring locating slot around central axis on the upper surface of described supervisor's inner wall sealing block, in sealing ring locating slot, be provided with supervisor's inner wall sealing circle；Described supervisor's inner wall sealing block outer sheath is provided with pressure ring assembly, on the downside of described pressure ring assembly, upside-down mounting has some plugs to play bolt, plug is beaten bolt-through connecting plate and is fixed with pressure ring assembly, connecting plate and plug are beaten and are slidably connected between bolt, and the plug between connecting plate and pressure ring assembly is beaten and is arranged with spring on bolt；Described bottom end cover assembly is connected with end cap drive mechanism through connecting plate by some connecting rods, and end cap drive mechanism is positioned in the gripper shoe of delivery device.
As preferably, described pressure ring assembly upper surface is to be responsible for the cambered surface that inwall mates with three way cock, and in not test mode, pressure ring assembly upper surface is higher than supervisor's inner wall sealing block upper surface.
As preferably, the oblique outer edge on described upper end cover and bottom end cover opposite face is all the chamfering of 45 °.
As preferably, described end cap drive mechanism is all cylinder.
Therefore, this utility model has the advantages that 1, can reduce test cavity, improves measuring accuracy；2, automatic operation, testing efficiency height；3, structure linkage is strong, and cost of manufacture is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of another angle of this utility model.
Fig. 3 is front view of the present utility model.
Fig. 4 is the sectional view before this utility model uses.
Fig. 5 is sectional view during this utility model use.
Fig. 6 is the structural representation that this utility model uses state.
1: upper end cover assembly；2: bottom end cover assembly；3: pressure ring assembly；4: end cap drive mechanism；5: supervisor's inner wall sealing block；6: connecting plate；7: upper end cover；8: a mouth seal of tube circle；9: bottom end cover；10: connecting shaft；11: supervisor's inner wall sealing circle；12: spring；13: bolt played by plug；14: connecting rod；15: test gas channels；16: three way cock；17: a mouth pipe；18: weld；19: seal cavity.
Detailed description of the invention
With specific embodiments, this utility model is further described below in conjunction with the accompanying drawings.
The sealing mechanism of leak detection inside a kind of PE three way cock, as shown in Figures 1 to 5, described sealing performance testing machine structure 3 at least includes upper end cover assembly 1, bottom end cover assembly 2, pressure ring assembly 3 and end cap drive mechanism 4.
Described upper end cover assembly 1 is divided into upper end cover 7 and connecting shaft 10, and described upper end cover 7 and connecting shaft 10 are all in cylinder and central axes, along central axis section view in " T " font.
Described bottom end cover assembly 2 is followed successively by bottom end cover 9, connecting portion and supervisor's inner wall sealing block 5 from top to bottom, bottom end cover 9 is and the cylinder of upper end cover 7 external diameter such as grade, bottom end cover 9 lower surface is connected by the upper surface of connecting portion with supervisor's inner wall sealing block 5, supervisor's inner wall sealing block 5 entirety is cylinder, upper surface is to be responsible for, with three way cock 16, the cambered surface that inwall mates, and bottom end cover 9 and supervisor's inner wall sealing block 5 central axes, it is I-shaped along central axis section view；Two test gas channels 15 it are additionally provided with, it is possible to be used for inflating, exitting, be connected with outside gas path test system on described supervisor's inner wall sealing block 5.
Described bottom end cover assembly 2 runs through along central axis and is provided with the through hole that the connecting shaft 10 with upper end cover assembly 1 mates, connecting shaft 10 is from top to bottom through the central through hole of bottom end cover assembly 2, and fix with one piece of connecting plate 6, bottom end cover assembly 2 is limited between upper end cover 7 and connecting plate 6 slidably.
The oblique outer edge of chamfering at 45 ° it is designed with on described upper end cover 7 and bottom end cover 9 opposite face, two oblique outer edges form the spacing extruding groove of sealing ring, a mouth seal of tube circle 8 it is provided with in spacing extruding groove, therefore, in separation trend between upper end cover 7 and bottom end cover 9, fit with connecting plate 6 on the downside of bottom end cover assembly 2；Offer an annular sealing ring locating slot around central axis on the upper surface of described supervisor's inner wall sealing block 5, in sealing ring locating slot, be provided with supervisor's inner wall sealing circle 11.
Described supervisor's inner wall sealing block 5 outer sheath is provided with pressure ring assembly 3, described pressure ring assembly 3 upper surface is the cambered surface mated with threeway supervisor's inwall, in not test mode, pressure ring assembly 3 upper surface is higher than supervisor's inner wall sealing block 5 upper surface, on the downside of pressure ring assembly 3, upside-down mounting has four plugs to play bolt 13, bolt 13 played by plug, and to run through connecting plate 6 fixing with pressure ring assembly 3, connecting plate 6 and plug are beaten and are slidably connected between bolt 13, and the plug between connecting plate 6 and pressure ring assembly 3 is beaten and is arranged with the spring 12 compressed on bolt 13.
Described bottom end cover assembly 2 is connected with end cap drive mechanism 4 through connecting plate 6 by four connecting rods 14, and described end cap drive mechanism 4 is twin shaft cylinder, and the cylinder body of cylinder is positioned in the gripper shoe of delivery device.
During test, see Fig. 4 to Fig. 6, first pass through delivery device and this utility model is moved to the positive downside of a mouth pipe 17 within three way cock 16.Start end cap drive mechanism 4, end cap drive mechanism 4 promotes all parts on the upside of connecting plate 6 and connecting plate 6 to move toward a mouth pipe orifice direction, upper end cover 7 and bottom end cover 9 first stretch into mouth pipe 17 endoporus, end cap drive mechanism 4 continues to push, when pressure ring assembly 3 rises to be responsible for inwall laminating with three way cock 16, stopping moves, owing to there being compression spring 12 to connect between pressure ring assembly 3 and connecting plate 6, fixing connection again between connecting plate 6 and upper end cover assembly 1, upper end cover 7 also stops upper shifting；Bottom end cover 9 continues upper shifting, and with upper end cover 7 extruding mouth seal of tube circle 8, a mouth seal of tube circle 8 is expanded, with a mouth pipe 17 inwall gluing, sealing, if processing is accurately, now, supervisor's inner wall sealing circle 11 of supervisor inner wall sealing block 5 upper surface is the most just fitted with three way cock 16 inwall crush seal；If the deviation of being machined with, upper end cover 7 and bottom end cover 9 have been fitted or cannot extrude expansion mouth seal of tube circle 8 again, supervisor's inner wall sealing circle 11 is not fitted with three way cock 16 inwall, then end cap drive mechanism 4 may proceed to push, now, bottom end cover 9 and upper end cover 7 move on another, and connecting plate 6 also will be shifted up the spring 12 compressed between pressure ring assembly 3, the crush seal until supervisor's inner wall sealing circle 11 of supervisor inner wall sealing block 5 upper surface and three way cock 16 inwall are fitted.When a mouth seal of tube circle 8 and a mouth inside pipe wall gluing, sealing, supervisor's inner wall sealing circle 11 and three way cock 16 inwall gluing, sealing, just define one between two sealing rings and seal cavity 19, and the weld 18 of three way cock 16 is exactly in this and seals on cavity 19 wall, so, just toward sealing the interior pressurization of cavity 19, pressure release, weld 18 can be carried out experiments of sealing performance by two test gas channels 15 on supervisor's inner wall sealing block 5.
Claims (4)
1. the sealing mechanism of leak detection inside a PE three way cock, it is characterised in that: at least include upper end cover assembly (1), bottom end cover assembly (2), pressure ring assembly (3) and end cap drive mechanism (4)；Described upper end cover assembly (1) is divided into upper end cover (7) and connecting shaft (10), and described upper end cover (7) and connecting shaft (10) are all in cylinder and central axes, along central axis section view in " T " font；Described bottom end cover assembly (2) is followed successively by bottom end cover (9), connecting portion and supervisor's inner wall sealing block (5) from top to bottom, bottom end cover (9) is and the cylinder of the external diameters such as upper end cover (7), bottom end cover (9) lower surface is connected by the upper surface of connecting portion with supervisor's inner wall sealing block (5), supervisor's inner wall sealing block (5) is overall in cylinder, upper surface is the cambered surface mated with three way cock (16) supervisor's inwall, and bottom end cover (9) with supervisor inner wall sealing block (5) central axes, be I-shaped along central axis section view；At least one test gas channels (15) it is additionally provided with on described supervisor's inner wall sealing block (5)；Described bottom end cover assembly (2) runs through along central axis and is provided with the through hole that the connecting shaft (10) with upper end cover assembly (1) mates, connecting shaft (10) is from top to bottom through the central through hole of bottom end cover assembly (2), and fix with one piece of connecting plate (6), bottom end cover assembly (2) is limited between upper end cover (7) and connecting plate (6) slidably；Being designed with oblique outer edge on described upper end cover (7) and bottom end cover (9) opposite face, two oblique outer edges form the spacing extruding groove of sealing ring, are provided with mouth seal of tube circle (8) in spacing extruding groove；Offer an annular sealing ring locating slot around central axis on the upper surface of described supervisor's inner wall sealing block (5), in sealing ring locating slot, be provided with supervisor's inner wall sealing circle (11)；Described supervisor's inner wall sealing block (5) outer sheath is provided with pressure ring assembly (3), described pressure ring assembly (3) downside upside-down mounting has some plugs to play bolt (13), bolt (13) played by plug, and to run through connecting plate (6) and pressure ring assembly (3) fixing, connecting plate (6) and plug are beaten and are slidably connected between bolt (13), and the plug between connecting plate (6) and pressure ring assembly (3) is beaten and is arranged with spring (12) on bolt (13)；Described bottom end cover assembly (2) is connected with end cap drive mechanism (4) through connecting plate (6) by some connecting rods (14), and end cap drive mechanism (4) is positioned in the gripper shoe of delivery device.
The sealing mechanism of leak detection inside a kind of PE three way cock the most according to claim 1, it is characterized in that: described pressure ring assembly (3) upper surface is the cambered surface mated with three way cock (16) supervisor's inwall, in not test mode, pressure ring assembly (3) upper surface is higher than supervisor's inner wall sealing block (5) upper surface.
The sealing mechanism of leak detection inside a kind of PE three way cock the most according to claim 1, it is characterised in that: the oblique outer edge on described upper end cover (7) and bottom end cover (9) opposite face is all the chamfering of 45 °.
4. according to the sealing mechanism of leak detection inside a kind of PE three way cock described in any claim in claims 1 to 3, it is characterised in that: described end cap drive mechanism (4) is all cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253942.5U CN205483450U (en) | 2016-03-30 | 2016-03-30 | Sealing mechanism of inboard leak hunting of PE three way connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620253942.5U CN205483450U (en) | 2016-03-30 | 2016-03-30 | Sealing mechanism of inboard leak hunting of PE three way connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205483450U true CN205483450U (en) | 2016-08-17 |
Family
ID=56648846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620253942.5U Expired - Fee Related CN205483450U (en) | 2016-03-30 | 2016-03-30 | Sealing mechanism of inboard leak hunting of PE three way connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205483450U (en) |
-
2016
- 2016-03-30 CN CN201620253942.5U patent/CN205483450U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180330 |