CN106340316A - Disk drive with air filling port by means of valve with cup-shaped far end - Google Patents

Abstract

The invention discloses a disk drive with an air filling port by means of a valve with a cup-shaped far end. The disk drive is provided with the air filling port which comprises a valve receiving channel that penetrates through the housing of the disk drive. Furthermore the valve receiving channel is provided with an inner annular seat surface. An air flowing channel is intersected with the valve receiving channel at a channel intersection point. The channel intersection point is arranged at a position which is farer than the inner annular seat surface to the inner space of the housing. A filling end valve comprises an outer threaded part which engages the inner threaded part of the valve receiving channel. The far end of the filling port valve comprises a central cup-shaped recessed part and an outer surrounding ridge which surrounds the central cup-shaped recessed part. The outer surrounding ridge selectively contacts with the inner annular seat surface of the valve receiving channel, and furthermore selectively forms a continuous annular sealing part for the inner annular seat surface of the valve receiving channel, thereby blocking air flow between the air flowing channel and the inner space.

Description

There is the disc driver inserting port using the gas of the valve with cup-shaped distal

Background technology

The printing electricity that traditional hard disk drive includes cephali disc assembly (hda) and is attached to the disc driver substrate of hda Road version assembly (pcba).Hda generally includes at least one disk of shell and such as disk, magneto-optic disk or CD.Hda is also usual Including for the spindle motor of spinning disk be attached to shell and the head pile component (hsa) in inside the shell.Pcba includes electricity Sub- device and firmware, for controlling the rotation of spindle motor and the position for controlling hsa, and are used for providing disk drive Data transmission channel between device and its main frame.

Hsa generally includes actuator, at least one suspension module (hga) and flexible cable assembly.Drive in operation disk During dynamic device, pcba provides and controls the moment of torsion flowing through the electric current of actuator coil and leading to be applied to actuator.Moment of torsion By actuator rotation with the information needed magnetic track on disk by hga positioning.

Each hga is included for reading data and the magnetic head writing data to disk from disk.In magnetic recording application, magnetic Head generally includes slide block and the magnetic transducer comprising write device and read element.In optical recording application, magnetic head can include instead Penetrate mirror and for the object lens extremely on magnetic disk surface by laser focusing.Slide block passes through gas lubrication film from magnetic disc separation, this gas Body lubricating film is commonly referred to as " air bearing ".Term " air bearing " is common, because generally lubrication gas is only Air.However, because noble gases can be not as oxygen degradation lubricant and protection carbon film so fast, air bearing slider Have been designed to use in the disk drive housing containing helium.

Helium can be used in disk drive housing, for example, because it has the heat conductivity higher than air, And therefore can improve disc driver cooling.Further, since air bearing thickness depends on gas viscosity and density, so Assume that all other condition is identical, with respect in the air, helium can advantageously reduce air bearing thickness.This Outward, if disk drive housing is helium insert rather than air insert (for example due to helium have lower than air close Degree), then induced gas stream is rotated by disk and can not impact the component in disc driver as much as possible.This improvement By reducing track error registration and track following ability can be improved and promote the higher density of data storage.

Open led to the disk drive housing containing gas rather than air (or in addition to air) in the prior art It is often gas-tight seal, to prevent unacceptable released gas rate.Although some negligible quantities of gas leakage are to keep away Exempt from, but be because that it can change the thickness of gas lubrication film between magnetic head and disk and thus affect the property of magnetic head Can, so the amount of can not ignore of gas leakage is undesirable.Because it can change the tribochemistry of head disk interface, can Reliability degradation, head crash and related data loss can be led to, so the amount of can not ignore of gas leakage is also undesirable.

Traditional hard disk drive, especially contains the hard disk drive of gas in addition to air, can have by outer To introduce gas, its middle port is sealed after inserting for the port of shell.If however, disc driver is lost due to leakage Gas, and leak and be repaired, then disc driver can need again to be inserted gas.This can present inserts port and is The no problem that easily or with putting into practice can not be switched on again and/or reseal.

For example, a conventional method inserting port for sealing disc driver is by forcing polishing stainless steel ball In the slightly smaller cylinder bore in disk drive housing.Interference fit between ball and hole can seal disc driver Interior gas.However, if gas leaks out after a while and disc driver needs again to be inserted, ball must be by pressing Ball until disc driver inside (and then ask open disc driver to fetch this ball) or open disc driver with By pressure ball until outside is removed.Select generally undesirably to be asked drive lid to be removed or substitute, Request manufacturer is followed the tracks of release and relatively small ball component.

Previously disclosed some gases were inserted port organization and were depended on screw, and this screw is included by screw itself Passage or hole.However, this design can be undesirably expensive for manufacturing.In other, previously disclosed gas is inserted The hole of disk drive base plate in the design of port, can be intentionally pressed through by the mobile surface of rustless steel sealing screw Internal sharp aluminum edge, the surface of this rustless steel sealing screw is tightened with it and rotates.However, this arrangement can be led Cause undue wear and therefore produce the risk that the debris particle excessive to disc drive applications generates.Disc driver should With generally having to the low-down toleration of pollution.

Therefore, exist in prior art and raising is used for inserting, again inserts, seal or reseal outside disc driver The gas of shell inserts the demand of port organization, the cost of this risk that can reduce fragment generation or manufacture.

Brief description

Fig. 1 is the perspective view of the disc driver that can include embodiments of the present invention.

Fig. 2 is that gas according to the embodiment of the present invention inserts port profile perspective in the open position.

Fig. 3 is that the gas of Fig. 2 inserts port cross-sectional view strength in a closed position.

Fig. 4 is that gas according to another implementation of the invention is inserted port transverse section in a closed position and regarded Figure.

Fig. 5 is that gas according to another implementation of the invention is inserted port transverse section in a closed position and regarded Figure.

Fig. 6 is that gas according to another implementation of the invention is inserted port transverse section in a closed position and regarded Figure.

Specific embodiment

Fig. 1 is the perspective view of the disc driver 100 that can include embodiments of the present invention.Disc driver 100 wraps Include disc driver substrate 102 and disc driver lid (not shown, so that internal disc drive components are better described), this magnetic Disk drive base 102 forms disk drive housing together with disc driver lid.At least one disk 104 is by rotatably It is arranged on main shaft 106, this main shaft 106 is attached to disc driver substrate 102.Each disk 104 includes can including using Two primary circular surfaces in one or more data areas of storage write data.Disc driver 100 can also wrap Include for positioning one or more magnetic gimbal elements 114 at the desired location above the major surfaces of disk 104 Magnetic-head actuator 116, to be read by one or more magnetic heads 150 and/or to write data.

Magnetic-head actuator 116 can be pivotally attached to disc driver substrate by actuator pivot bearings 134 102, this actuator pivot bearings 134 is arranged in the bore 132 of magnetic-head actuator 116.Voice coil motor 112 makes magnetic head Actuator 116 can rotate around actuator pivot bearings 134, and this voice coil motor 112 includes and flows through on magnetic-head actuator 116 Conductive coil the synergistic permanent magnet of electric current.Disc driver 100 can include stopping suddenly and/or breech lock (latch) 120 to protect and/or to prevent extreme the or unwanted rotation of magnetic-head actuator 116, for example, to protect magnetic head Gimbal assembly 114 or magnetic head 150 mechanical impact or vibration.

Each magnetic head 150 can include magnetic resistance and read transducer and can be called " reading magnetic head ".But read Magnetic head 150 can also include the structure of function in addition to only reading data for the execution (for example, for writing the inductance write of data Device, for fine data track following micro-actuator, be used for the detached heater of dynamic control head-disk (heater) Deng).From magnetic head 150 read signal or write a signal to magnetic head 150 and can be carried by flexible cable 122, this flexible cable 122 It is attached to magnetic-head actuator 116 and extend to adapter 124.

In the embodiment of figure 1, disc driver 100 can include recirculating filter 108, to help control for example The entrance magnetic causing during disk drive components and/or by the internals in its during the operation disc driver 100 Any pollutant of disk drive 100.Disc driver 100 can also be sealed to prevent external contaminants from entering, and enter one Step can be with gas-tight seal to retain gas (for example, helium, nitrogen, methane, air, argon, neon etc.) besides air, should Gas can be to required for operation and/or test disc driver 100.If the inside of disk drive housing comprises greatly This gas of amount concentration, then disc driver 100 will be considered " being inserted " this gas.For example, if outside disc driver Then the inside of shell comprise the helium of a large amount of concentration, then disc driver 100 will be considered as to insert helium.

In fact, the concentration relative surpluses air of the gas (for example, helium) of sealing initially will be less than 100%, and by Reveal in non-zero, therefore the whole service life of expected disc driver 100 is declined.In some applications, to helium atmosphere At least 70% can be desired, at least the 70% of helium atmosphere is sealed initially, with the disk in described gas-tight seal Sealing is kept after 10 years service lifes of driver.In addition, in the case of helium, as long as it continues to seal a large amount of concentration Helium atmosphere, then disc driver 100 may be considered that running through its service life inserts helium.It is further noted that helium 1.0 atmospheric pressure disc driver 100 be considered to seal helium and/or be that to insert helium is not required.For example, fill out The disk drive housing entering helium preferably can primitively seal the helium with air partial pressure between 0.3 to 1.0, and The air with air partial pressure between 0 to 0.7 can also be sealed.

In the embodiment of figure 1, disc driver substrate 102 has gas and inserts port 106.Alternatively, this gas Inserting port 106 can be through disc driver lid.In either case, disk drive housing can be opened inserting port Mouth 160 nearby selectively partly thickens, for example, to guarantee that inserting port openings 160 has sufficient length to adapt to insert Some features (this feature is disclosed and described in subsequent paragraph herein) of port openings 160.In some embodiment party In formula, disk drive housing can have the neighbouring thickness inserting port openings 160, this thickness preferably at least 3mm.

Fig. 2 is that gas according to the embodiment of the present invention inserts port 200 profile perspective in the open position.Figure 3 is that gas inserts port 200 viewgraph of cross-section in a closed position.Referring now to Fig. 2 and 3, gas is inserted port 200 and is included wearing Cross the valve receiving channel 210 that crust of the device 202 (aluminum soleplate of such as disk drive housing) extends.It is noted that for certain The feature of a little numeral marks and readable clear for the sake of, in Fig. 2 and Fig. 3, labeled region 202 is not drawn with reticule Shade, even if they represent the cross section of crust of the device.Valve receiving channel 210 includes inner threaded portion 214 and inner annular Seating face 216.

In the embodiment of Fig. 2 and Fig. 3, gas flow channel 240 and valve receiving channel 210 are in channel intersection 242 Place is intersecting.In the embodiment of Fig. 2 and Fig. 3, gas flow channel 240 is in fluid communication with the outside 206 of crust of the device.In figure In 2 and Fig. 3 embodiment, channel intersection 242 and inner threaded portion 214 are configured and inner annular seating face 216 compare distance means inner space 204 (for example, the inside of disk drive housing) farther.

In the embodiment of Fig. 2 and Fig. 3, insert port valve 230 and be arranged in valve receiving channel 210.In some realities Apply in mode, insert port valve 230 and can preferably comprise steel (for example, rustless steel).Insert port valve 230 to include receiving with valve The external threaded portion 234 of inner threaded portion 214 engagement of passage 210.Insert part valve 230 and include far-end 232, this far-end 232 include central cup-shaped recess 250 and the peripheral ridge 252 around central cup-shaped recess 250.Embodiment in Fig. 2 and Fig. 3 In, peripheral ridge is annular.Insert port valve 230 and include the near-end 239 relative with far-end 232, and in some embodiment party In formula, near-end 239 includes moment of torsion and receives recess 238.

In the embodiment of Fig. 2 and Fig. 3, central cup-shaped recess 250 is the concave surface of the shape with part sphere.As figure Shown in 3, part sphere limits spherical radius r.In some embodiments, spherical radius r is preferably to insert port valve 230 0.75 to 1.5 times of the diameter d of far-end 232 in the range of.In some disc drive applications, insert port valve 230 The diameter of far-end 232 is preferably in the range of 1.2mm to 3mm.In some embodiments, insert the configuration of port 200 Insert the gas-tight seal of port 200 or reseal with advantageously facilitating to the above-mentioned size limitation inserting port valve 230, Wherein reduce the risk that extreme wear or chip generate.

For example, in the position shown in Fig. 3, the inner annular seating face 216 of peripheral ridge 252 and valve receiving channel 210 Selective contact, and it is formed selectively the continuous circular shape sealing with the inner annular seating face 216 of valve receiving channel 210, So that inserting port valve 230 to stop the gas flowing between gas flow channel 240 and inner space 204.Fig. 2's and Fig. 3 In embodiment, this be selected to by moment of torsion receive recess 238 apply moment of torsion realize, with respect to valve receiving channel 210 inner annular seating face 216 promotes or postpones to insert port valve 230.In some embodiments, moment of torsion receives recess 238 are preferably configured to receive the moment of torsion (for example, not being disc drive components) from not being the instrument of the part of device. In open position shown in Fig. 2, the gas flowing between gas flow channel 240 and inner space 204 is not received in end Mouth valve 230 stops.

Fig. 4 is that gas according to another implementation of the invention inserts port 400 cross section in a closed position View.The gas of Fig. 4 is inserted port 400 and is included extending through crust of the device 402 (for example, aluminum soleplate of disk drive housing) Valve receiving channel 410.It is noted that for the sake of the feature of some numeral marks and the clear of readability, labeled in Fig. 4 The shade that do not drawn with reticule of region 402, even if they represent the cross section of crusts of the device.Valve shown in Fig. 4 receives Passage 410 is to include inner threaded portion 414 and inner annular seating face 416.

In the embodiment illustrated in fig. 4, gas flow channel 440 and valve receiving channel 410 phase at channel intersection 442 Hand over.In the embodiment illustrated in fig. 4, gas flow channel 440 and the outside 406 of crust of the device are in fluid communication.Embodiment party in Fig. 4 In formula, passage intersect cross point 442 and inner threaded portion 414 be configured compared with inner annular seating face 416 away from Farther from the inner space 404 (for example, the inside of disk drive housing) of device.

In the embodiment illustrated in fig. 4, insert port valve 430 to be configured in valve receiving channel 410.In some embodiments In, insert port valve 430 and can preferably include steel (for example, rustless steel).Insert port valve 430 to include and valve receiving channel The external threaded portion 434 of 410 inner threaded portion 414 engagement.Insert port valve 430 and include far-end 432, this far-end 432 Peripheral ridge 452 including central cup-shaped recess 450 with around central cup-shaped recess 450.In the embodiment illustrated in fig. 4, periphery Spine is annular.Insert port valve 430 and include the near-end 439 relative with far-end 432, and in some embodiments, closely End 439 includes moment of torsion and receives recess 438.

In closed position shown in Fig. 4, peripheral ridge 452 has selectively been forced into valve receiving channel 410 Inner annular seating face 416, is stopped so that inserting port valve 430 with its continuous circular shape sealing with being thus formed selectively Air flow between gas flow channel 440 and inner space 404.In the embodiment illustrated in fig. 4, can be by connecing to moment of torsion Receive recess 438 and apply moment of torsion and complete this optionally to force (forcing), with the inner loop with respect to valve receiving channel 410 Shape seating face 416 promotes or postpones to insert port valve 430.In some embodiments, moment of torsion receives recess 438 and is preferably joined It is set to the moment of torsion (for example, not being disc drive components) receiving from not being the instrument of the part of device.In some embodiment party In formula, the said structure inserting port 400 can be advantageously reduced at the risk that the extreme wear of during the operation or chip generate.

Fig. 5 is that gas according to another implementation of the invention inserts port 500 cross section in a closed position View.The gas of Fig. 5 is inserted port 500 and is included extending through crust of the device 502 (for example, aluminum soleplate between disc driver) Valve receiving channel 510.Valve receiving channel 510 includes inner threaded portion 514 and inner annular seating face 516.

In the embodiment of Fig. 5, gas flow channel 540 and valve receiving channel 510 phase at channel intersection 542 Hand over.In the embodiment of Fig. 5, gas flow channel 540 is in fluid communication with the outside 506 of crust of the device.Embodiment party in Fig. 5 In formula, channel intersection 542 is configured distance dress compared with inner annular seating face 516 with inner threaded portion 514 The inner space 504 (for example, the inside of disk drive housing) put is farther.

In the embodiment of Fig. 5, insert port valve 530 and be configured in valve receiving channel 510.In some embodiments In, insert port valve 530 and can preferably include steel (for example, rustless steel).Insert port valve 530 to include and valve receiving channel The external threaded portion 534 of 510 inner threaded portion 514 engagement.Insert port valve 530 and include far-end 532, this far-end 532 Peripheral ridge 552 including central cup-shaped recess 550 with around central cup-shaped recess 550.In the embodiment of Fig. 5, periphery Spine 552 can be annular.Insert port valve 530 and include the near-end 539 relative with far-end 532, and in some embodiment party In formula, near-end 539 includes moment of torsion and receives recess 538.

In the embodiment of Fig. 5, central cup-shaped recess 550 have by peripheral ridge 552 around recessed central plane (land)556.The inwall 554 of peripheral ridge 552 is circular cone and forms the cup-shaped angle of inner valve with respect to central plane 556 (180°-a).In some embodiments, the cup-shaped angle of inner valve (180 ° of-a) is preferably in the range of 105 ° to 170 °.? In the embodiment of Fig. 5, the outer wall of peripheral ridge 552 is shown as that (labelling 532 points to from inserting port valve 530 by vertebra angle b Outer cylinder surface) outer cylinder surface conically taper inward.In some embodiments, vertebra angle b is preferably It is in the range of 0 ° to 45 °.

In the embodiment of Fig. 5, peripheral ridge 552 limits valve distal flat surface (parallel to plane), and inner annular Seating face 516 is coning tilted by inclination angle c with respect to valve distal flat surface.In some embodiments, inclination angle c is preferred Ground is in the range of 0 ° to 45 °.In some embodiments, above-mentioned insert the structure of port 500 and limit and insert end The above-mentioned preferred angle of mouth valve 530 and inner annular seating face 516 can favorably promote to insert the gas-tight seal of port 500 or weight Novel sealing, wherein reduces the risk that extreme wear or chip generate.

In Figure 5 in shown closed position, the peripheral ridge 552 optionally inner annular with valve receiving channel 510 Seating face 516 contacts, and is formed selectively close with the continuous circular shape of the inner annular seating face 516 of valve receiving channel 510 Envelope stops the air flow between gas flow channel 540 and inner space 504 so that inserting port valve 530.Reality in Fig. 5 Apply in mode, this selection can be completed by receiving recess 538 applying moment of torsion to moment of torsion, with respect to valve receiving channel 510 Inner annular seating face 516 promote or postpone to insert port valve 530.In some embodiments, moment of torsion receives recess 538 quilt It is preferably configured to receive the moment of torsion (for example, not being disc drive components) from not being the instrument of the part of device.

Fig. 6 is that gas according to another implementation of the invention inserts port 600 cross section in a closed position View.The gas of Fig. 6 is inserted port 600 and is included extending through crust of the device 602 (for example, aluminum soleplate of disk drive housing) Valve receiving channel 610.It is noted that for the sake of the feature of some numeral marks and the clear of readability, labelling in Fig. 6 Region 602 does not draw shade with reticule, even if they represent the cross section of crust of the device.Valve receiving channel shown in Fig. 6 610 to include inner threaded portion 614 and inner annular seating face 616.

In the embodiment of fig. 6, gas flow channel 640 and valve receiving channel 610 phase at channel intersection 642 Hand over.In the embodiment of fig. 6, gas flow channel 640 selectively can be in fluid communication with the outside 606 of crust of the device.? In the embodiment of Fig. 6, channel intersection 642 and inner threaded portion 614 are configured and inner annular seating face 616 The inner space 604 (for example, the inside of disk drive housing) comparing distance means is farther.

In the embodiment of fig. 6, insert port valve 630 to be configured in valve receiving channel 610.In some embodiments In, insert port valve 630 and can preferably include steel (for example, rustless steel).Insert port valve 630 to include and valve receiving channel The external threaded portion 634 of 610 inner threaded portion 614 engagement.Insert port valve 630 and include far-end 632, this far-end 632 Peripheral ridge 652 including central cup-shaped recess 650 with around central cup-shaped recess 650.In the embodiment of fig. 6, periphery Spine can be annular.Insert port valve 630 and include the near-end 639 relative with far-end 632, and in some embodiments In, near-end 639 includes moment of torsion and receives recess 638.

In figure 6 in shown closed position, the peripheral ridge 652 optionally inner annular with valve receiving channel 610 Seating face 616 contacts, and is formed selectively close with the continuous circular shape of the inner annular seating face 616 of valve receiving channel 610 Envelope stops the air flow between gas flow channel 640 and inner space 604 so that inserting port valve 630.Reality in Fig. 6 Apply in mode, this selection can be completed by receiving recess 638 applying moment of torsion to moment of torsion, with respect to valve receiving channel 610 Inner annular seating face 616 promote or postpone to insert port valve 630.In some embodiments, moment of torsion receives recess 638 quilt It is preferably configured to receive the moment of torsion (for example, not being disc drive components) from not being the instrument of the part of device.At certain In a little embodiments, the said structure inserting port 600 can favorably reduce extreme wear during operation or chip generates Risk.

In the above specification, describe the present invention with reference to specific illustrative embodiment, but those skilled in the art will Recognize and the invention is not restricted to these.It is contemplated that the various features of the present invention and aspect can be by individually or joint Ground and possibly use different environment or application in.Therefore, this specification and drawings will be considered as illustrative and show Example property rather than restricted.For example, word " preferably " and phrase " preferably, but not necessarily, " are used synonymously Herein consistently to include " unnecessarily " or the meaning selectively."comprising", " comprising " and " having " are intended to as opening Put formula term.

Claims (20)

1. a kind of disc driver, described disc driver includes:

Disk drive housing, its sealed inner；

Disk, it is rotationally mounted to described disk drive housing in described inner space；And

Gas inserts port, and described gas is inserted port and included:

Valve receiving channel, it passes through described disk drive housing to extend, and has inner threaded portion and internal annular seat Surface；And

Gas flow channel, it is intersected at channel intersection with described valve receiving channel；

Wherein, described channel intersection is set compared with described inner annular seating face apart from institute with described inner threaded portion State inner space farther；And

Insert port valve,, in described valve receiving channel, described port valve of inserting includes for it

External threaded portion, it is engaged with the described inner threaded portion of described valve receiving channel, and

Far-end, it includes central cup-shaped recess and the peripheral ridge around described central cup-shaped recess, and described peripheral ridge selects Property ground contact with the described inner annular seating face of described valve receiving channel, and be formed selectively and described valve receiving channel Described inner annular seating face continuous circular shape sealing, to stop between described gas flow channel and described inner space Gas flows.

2. disc driver according to claim 1, wherein, described peripheral ridge is circular.

3. disc driver according to claim 1, wherein, the outer wall of described peripheral ridge passes through 0 ° to 45 ° of scope Interior cone angle is from the described outer cylinder surface conically taper inward inserting port valve.

4. disc driver according to claim 1, wherein, described peripheral ridge limits valve distal flat surface, and described Inner annular seating face is conically tilted with respect to described valve distal flat surface by the inclination angle in the range of 0 ° to 45 °.

5. disc driver according to claim 1, wherein, central cup-shaped recess be have part sphere shape recessed Face.

6. disc driver according to claim 5, wherein, described part sphere limits spherical radius, described sphere half Footpath is in the range of 0.75 to 1.5 times of the diameter of the described described far-end inserting port valve.

7. disc driver according to claim 6, wherein, the described diameter of the described described far-end inserting port valve exists In the range of 1.2mm to 3mm.

8. disc driver according to claim 1, wherein, central cup-shaped recess have by described peripheral ridge around Recessed central plane.

9. disc driver according to claim 8, wherein, the inwall of described peripheral ridge be circular cone and with respect to Described central plane forms the cup-shaped angle of internal valve, and the cup-shaped angle of described internal valve is in the range of 105 ° to 170 °.

10. disc driver according to claim 1, wherein, described port valve of inserting includes the near of relatively described far-end End, described near-end includes moment of torsion and receives recess, and described moment of torsion receives recess and be configured to reception to be derived from not is described disk drive The moment of torsion of the instrument of the part of device.

11. disc drivers according to claim 1, wherein, described disk drive housing inserts helium.

12. disc drivers according to claim 1, wherein, described disk drive housing includes disc driver base Bottom and be attached to the disc driver lid of described disc driver substrate, and wherein, described gas insert port pass through described Disc driver base extension.

13. disc drivers according to claim 1, wherein said disk drive housing has neighbouring described gas and fills out The thickness of inbound port, described thickness is at least 3mm.

A kind of 14. devices, described device includes:

Crust of the device, its sealed inner；And

Gas inserts port, and described gas is inserted port and included

Valve receiving channel, it passes through described device shell to extend, and it has inner threaded portion and inner annular seating face； And

Gas flow channel, it is intersected at channel intersection with described valve receiving channel；

Wherein, described channel intersection is configured compared with described inner annular seating face apart from institute with described inner threaded portion State inner space farther；And

Insert port valve,, in described valve receiving channel, described port valve of inserting includes for it

External threaded portion, it is engaged with the described inner threaded portion of described valve receiving channel, and

Far-end, it includes central cup-shaped recess and the peripheral ridge around described central cup-shaped recess, and described peripheral ridge selects Property ground contact with the described inner annular seating face of described valve receiving channel, and be formed selectively and described valve receiving channel Described inner annular seating face continuous circular shape sealing, to be blocked between described gas flow channel and described inner space Gas flowing.

15. described devices according to claim 14, wherein, the outer wall of described peripheral ridge is by the range of 0 ° to 45 ° Cone angle is inwardly conically tapered from the described outer cylinder surface inserting port valve.

16. described devices according to claim 14, wherein, described peripheral ridge limits valve distal flat surface, and described inside Annular seating surface is conically tilted with respect to described valve distal flat surface by the inclination angle in the range of 0 ° to 45 °.

17. described devices according to claim 14, wherein, described port valve of inserting includes the near-end relative with described far-end, Described near-end includes moment of torsion and receives recess, and described moment of torsion receives recess and is configured to receive the part from not being described device The moment of torsion of instrument.

18. described devices according to claim 14, wherein, central cup-shaped recess is the concave surface of the shape with part sphere.

19. described devices according to claim 14, wherein, central cup-shaped recess have by described peripheral ridge around depression Central plane.

20. devices according to claim 19, wherein, the inwall of described peripheral ridge is circular cone, and with respect to institute State the cup-shaped angle of internal valve that central plane formation is in the range of 105 ° to 170 °.