CN1114780C

CN1114780C - Method and sealing valve unit for controlling fluid flow through passage

Info

Publication number: CN1114780C
Application number: CN97180471A
Authority: CN
Inventors: 小沃伦·E·许斯勒; 雷·G·巴克莱斯; 叶菲姆·V·萨尔波瓦; 史蒂文·J·内格尔
Original assignee: International Marketing Inc
Current assignee: International Marketing Inc
Priority date: 1996-12-09
Filing date: 1997-12-02
Publication date: 2003-07-16
Anticipated expiration: 2017-12-02
Also published as: AU5367498A; EP0941436A4; PL336630A1; CN1251644A; BR9714137A; CA2272288A1; HK1026016A1; KR20000057460A; TW462927B; WO1998026204A1; EP0941436A1; CA2272288C; AU720237B2

Abstract

A sealing valve unit (27) for controlling the flow of fluid through a passage (33) defined by the interior surface of a tubular casing (25) comprises a valve body (205) having a longitudinal bore therethrough. The valve body (205), a sealing assembly (211) and a filter element (71) are so constructed that they are held in assembly with one another independent of the tubular casing (25) so that they can be simultaneously installed in and removed from the passage (33) as a single unit.

Description

Fluid flows in the control channel method and sealing valve unit

Background of invention

The present invention relates generally to be used for to control method and sealing valve unit that the fluid of the passage that is surrounded by the tubular shell internal surface flows, particularly relate to the bulk material that is used for stoping fluid the operation of sealing control valve unit is produced dysgenic method and sealing valve unit.

For balance turbine assembly under the loading condiction that changes with reduce in this wheel assembly radially the improvement of the method that changes with transverse force, be included in the granular or pulverulent material of packing in the tire as recently.One of them this method is by U. S. Patent 5,073, and No. 217 disclosed, and this patent here as a reference.Bulk material mixes with compressed fluid (for example air) and is ejected into this wheel assembly by suitable injection apparatus through this tire valve rod, and this injection apparatus for example has U. S. Patent 5,386, No. 857 and 5,472, No. 023 shown and narrate devices, this patent here also as a reference.A kind of famous grain package material is the polymeric plastic material of being sold with trade mark " EQUAL " by international market company.

This bulk material is ejected in do not have spool in the valve rod tire (for example the new tire before spool is installed or remove the old tire of spool from this valve rod) of wheel assembly of (for example seal valve), to allow this material freely flow to this tire.When this tire sprays this material, this tire has generally filled gas or has filled gas to small part.After having sprayed this material, spool is installed to this valve rod and this tyre inflation is arrived the inflation pressure of expectation to this tire.

This spool is to be used for the standard seal valve that the control channel fluid flows, and this passage is surrounded by the internal surface of tubular shell, for example is the valve stem passage of this valve rod.Open and the sealing of fixed valve base in the relative passage of valve portion of this spool is flowed with the fluid of controlling in this passage.The very important point is that this valve valve seat place relevant with it does not have bulk material for the operation of this spool.Yet, when opening this valve when discharging compressed fluid from this tire or checking the pressure of this tire, thereby above-mentioned bulk material might be fallen into this spool this valve hole part is produced harmful effect, such as hindering this valve fully in this valve seat closure, thereby causes fluid constantly to leak from this tire.In addition, this tire also may contain other bulk material, for example dust, scrap or the rubber grain that falls down from the inner edge of this tire in this wheel assembly process of use.Thereby these particles also may be inhaled into the operation generation harmful effect of this spool to this valve hole part.

In order to reduce this risk, knownly adopt a kind of valve rod with movable filter core, this filter core permanently is surrounded in this valve rod between the inside of this spool and this tire, so that allow this fluid this filter core of flowing through simultaneously bulk material being remained in this tire and stop it to arrive at this spool.For example, U. S. Patent 5,479, the valve rod that No. 975 (here as a reference) illustrates and narrate comprises such filter core.Though this valve rod is very useful, but bulk material for example the user of EQUAL may wish a kind of removably fixedly filter core to be installed to be the standard valve rod the common of industrial use, rather than change this valve rod with the valve rod that filter permanently has been installed.

Use spool or other similar seal valve to control technology that the fluid in the shell channel flows also for known to other industry.For example, with spool control utility line, automobile, family expenses and business air conditioner device, soda machine, and other fluid that need control in the device that fluid flows in the housing flow.For the spool operation in these application, maintaining valve and relative valve seat place do not have bulk material of equal importance yet.

Summary of the invention

A plurality of purpose of the present invention and being characterised in that: a kind of sealing valve unit is provided, and wherein, seal valve and filter core have can be installed to tubular shell and the structure from wherein removing simultaneously; A kind of sealing valve unit is provided, wherein, need not removes or put back to that this tubular shell can be installed to filter core this tubular shell passage or from wherein removing; A kind of sealing valve unit is provided, and the sealing control valve unit can reduce misoperation, falls down and lose the risk of this filter core; A kind of sealing valve unit is provided, wherein, in this passage, does not need other structure filter to be remained in this passage; A kind of sealing valve unit is provided, and the sealing control valve unit is easy to install in this passage; A kind of sealing valve unit is provided, and the sealing control valve unit is easy to assemble with the seal valve that can purchase now of standard; And provide a kind of sealing valve unit, sealing control valve unit can stop bulk material to flow to the valve portion of sealing valve.

A plurality of purpose of the present invention and feature also are: a kind of instrument is provided, and this instrument can be effectively and is inserted filter core reliably in tire and do not need from this tire to throw off this valve rod; A kind of instrument is provided, and this instrument is used for the assembled valve assembly, and this valve assembly can stop bulk material to flow to seal valve; A kind of instrument is provided, and the mechanism of this instrument is simple; A kind of instrument is provided, and this instrument can also allow bulk material to enter tire before filter core is inserted into this valve rod, and need not throw off this instrument from this valve rod; A kind of instrument is provided, and this instrument can also allow to this valve rod seal valve to be installed after filter core is inserted into this valve rod, and need not throw off this instrument from this valve rod.

A plurality of purpose of the present invention and feature also are: a kind of method is provided, and this method is used to stop bulk material to escape through the valve assembly of turbine assembly; A kind of method is provided, and this method is used for to inserting filter to the tire valve rod, and can implement fast and simply; A kind of method is provided, and this method allows to import bulk material and insert this filter in this tire in this valve rod with individual tool; A kind of method is provided, and this method allows with individual tool this spool to be installed in this valve rod after inserting this filter.

Other purpose and feature will partly become clear and definite and partly be pointed out in the explanation of back.

The simple declaration of accompanying drawing

Fig. 1 is the perspective view that is connected to the instrument of the present invention of turbine assembly valve rod;

Fig. 2 is the perspective view of instrument among Fig. 1;

Fig. 3 A-D is in 4 different phases of tool operation partial cross sectional view along Fig. 2 center line 3-3;

Fig. 4 is the partial cross sectional view along Fig. 2 center line 4-4;

Fig. 5 is the sectional elevation of valve assembly;

Fig. 6 is the perspective view that is connected with the seal valve of the present invention of filter core;

Fig. 7 is the perspective view of seal valve among Fig. 6, and the seal arrangement of sealing valve moves on to the open position, has removed the part of this filter core for the end that the sealing device is shown;

Fig. 8 is the schematic representation of the seal valve similar to seal valve among Fig. 6, and this filter core illustrates with section;

Fig. 9 is the schematic representation that is installed on the seal valve of the Fig. 8 in the valve rod, and this filter core and valve rod illustrate with section;

Figure 10 is the 2nd embodiment's of a seal valve of the present invention schematic representation, is connected with filter assemblies thereon, and this filter assemblies illustrates with section;

Figure 11 is the 3rd embodiment's of a seal valve of the present invention schematic representation, is connected with filter assemblies thereon, and this filter assemblies illustrates with section;

Figure 12 is the schematic representation that is installed on the seal valve of the Figure 10 in the valve rod, and this filter assemblies and valve rod illustrate with section;

Figure 13 is the schematic representation that is installed on the seal valve of the Figure 11 in the valve rod, and this filter assemblies and valve rod illustrate with section;

Figure 14 is the enlarged perspective of seal valve of the valve assembly of Fig. 5;

Figure 15 is seal valve the 4th embodiment's of the present invention partial schematic diagram, and this filter assemblies and valve rod illustrate with section;

Figure 16 is seal valve the 5th embodiment's of the present invention partial schematic diagram, and this filter assemblies illustrates with section;

Figure 17 is the partial schematic diagram that is installed on the seal valve that is shown in Figure 16 in the valve rod, and this filter assemblies and valve rod illustrate with section; And

Figure 18 wherein has filter assemblies for seal valve the 6th embodiment's of the present invention partial schematic diagram, and sealing valve and filter assemblies are installed on valve rod, and this valve rod illustrates with section.

In whole accompanying drawings, corresponding part marks with corresponding label.

Most preferred embodiment

In Fig. 1, the instrument that is used for filter core is inserted into tyre assembly is represented with label 21 on the whole.This instrument 21 links to each other with the turbine assembly, and this turbine component table is shown w, and it comprises wheel rim R and the pneumatic tire T that is installed on this wheel rim.This wheel rim R and pneumatic tire T surround inner space V at this wheel assembly W, to keep compressed fluid.The valve assembly of representing with label 23 links to each other with this wheel assembly W and is communicated with this inner space V, can allow compressed fluid to flow to or flows out this inner space this tire T is inflated and exit.

In each accompanying drawing of the present invention, valve assembly 23 generally is expressed as vertical direction, for the present invention shown in the accompanying drawing is described, with " on " and D score each parts and the operation of this valve assembly are described.Yet, need to prove that this valve assembly 23 can be on the direction beyond the vertical direction, and the parts of this valve assembly and operation can be distinguished generally and use " outward " and " interior " to illustrate.

This valve assembly 23 (Fig. 5) comprises the valve rod represented with label 25 and is arranged in the seal valve of representing with label 27 of this valve rod, for example spool.This valve rod 25 is roughly tubular shell, and it has continuous with wheel assembly W is that underpart 29 be upper end portion 31 with the 2nd end that can contact from the wheel assembly outside with the 1st end that is communicated with inner space V.The end 29,31 of this valve rod 25 is an open state, so the internal surface of this bar surrounds valve stem passage 33, this valve stem passage 33 and this inner space V of this tire pass to mutually and allow compressed fluid to flow to or flow out this wheel assembly W.As shown in Figure 5, this valve stem passage has central longitudinal axis X.The upper end portion 31 of this valve rod 25 externally has and is used for the screw thread that engages with closing lid (not shown) or other suitable connector, has in inside to be used for engaging with the screw thread at this spool of bar internal fixation with spool 27.

This valve rod 25 has interior annular flange flange near its lower end, forms filter seat 35, and its function will be explained below.Yet the valve rod of this filter seat 35 does not belong to scope of the present invention yet.In addition, the invention is not restricted to any specific stem material, shape, size or the method that links to each other with wheel assembly, and, under the situation that does not exceed the scope of the invention, this valve rod 25 generally can be used for motorcycle tire, automobile tire, light-duty and heavy truck tire, aero tyre and other common tire that uses valve rod.

As shown in figure 14, seal valve 27 of the present invention (being spool) has underpart 201 and upper end portion 203, can be inserted into this valve stem passage 33 (inserting the underpart earlier) by downward direction.This spool 27 comprises the fixed valve body of representing with label 205 with longitudinal axis X '.This valve body 205 207 is provided with screw thread in the upper end portion, is used for and being connected that valve rod 25 carries out throwing off, and is along the longitudinal movement with respect to this valve rod to stop this valve body 205.This valve body 205 has along vertical hole 209 of its longitudinal axis X ' extension.This valve body 205 is connected in this valve rod 25 coaxially with this valve stem passage 33, so that the longitudinal axis X ' of this valve body is consistent with the center longitudinal axis X of this valve stem passage (Fig. 5).

The underpart that centers on the valve body 205 in this vertical hole 209 surrounds ring-shaped valve seats 37, and this valve seat 37 is positioned at this valve stem passage 33 coaxially.Lip ring 39 around this valve body 205 can engage with this valve rod 25, so that the fluid that flows in this valve stem passage 33 flows through in this vertical hole 209.The threaded upper end portion 207 of this valve body 205 is the other parts of this valve body rotation relatively preferably, and it also has the outer surface that forms reaction plan 47, and its reason will be explained below.

This spool 27 also comprises the black box of representing with label 211, and it can vertically move by relative valve body 205 in valve stem passage 33, with control fluid flowing in vertical hole 209 of this valve body.Sealing assembly 211 comprises seal arrangement and the actuator pin of representing with label 213, and for example valve pin 43.Sealing device 213 can move between close encapsulation position and open position along the longitudinal axis X of valve stem passage 33, sealing station sealing device in this sealing is bonded on this valve seat 37 hermetically to stop flowing in the vertical hole 209 at valve body 205, leaves this valve seat to allow compressed fluid flow through this vertical hole at this open position sealing device.This valve pin 43 links to each other with seal arrangement, is used for the sealing device is moved to its open position.The spring (not shown) that is configured in valve body 205 applies power on the direction of its close encapsulation position to sealing device 213.

As shown in figure 14, seal arrangement 213 comprises best Sealing 215 by rubber or other suitable material, and sealing part 215 is placed on the seal carriage 217 that is generally cup-shaped.Form from what this carriage extended downwards with seal carriage 217 and to tighten part 220.This valve pin 43 extends beyond the threaded upper end portion 207 of this valve body from vertical hole 209 that seal arrangement 213 passes valve body 205.The upper end portion 221 of valve pin 43 can contact, so that can revolt the relative valve body 205 of the elastic force of spring and valve rod 25 with its downward pushing, thereby seal arrangement 213 is moved to its open position.

The bottom 42 of this pin 43 is (not shown in Figure 14, but shown in Figure 8 its extends beyond the situation of constriction 220) extend through seal carriage 217 and constriction 220 downwards, the bottom of this pin and this constriction totally one terminal also constitute the axle of expressing with label 219 with underpart 223 together.This constriction 220 is preferably tightened by suitable compression device (not shown), forming firm engaging with the bottom 42 of valve pin 43, thereby control valve unit 213 is connected to valve pin, constitutes valve assembly 211.Shown in Fig. 8 and 9, the bottom 42 of valve pin 43 also can extend beyond the end of constriction 220 substantially downwards, so that axle 219 further extends downwards from carriage 217.

Shown in Fig. 2 and 3A, instrument of the present invention comprises that body 21 with handle 53, the valve rod connector by label 55 expressions, fluid inlet 57, filter insert import 59, the filter represented with label 61 is laid assembly, spool insertion import 63, the plunger assembly of being represented by label 65 and the selector valve of being represented by label 67.This selector valve 67 is installed on the body, is used for optionally constituting this instrument to finish various operations when this instrument links to each other with valve rod 25.For example the instrument 21 of most preferred embodiment is used for injecting granular or pulverulent material to the inner space of wheel assembly W V, inserts filter core 71 to valve rod 25, to this valve rod spool 27 is installed then.In the instrument 21 in being shown in Fig. 2, it is approximately 6.965 inches along handle and body length measured, and the thickness of measuring along valve rod connector and plunger assembly is 9.325 inches, and width is 1 inch.Yet these sizes can change according to the wheel assembly W of application tool 21 and the particular type of valve rod 25.

Body 51 is preferably made single-piece by suitable materials such as plastics, brass, aluminium or steel, but also can be made and belonged to scope of the present invention by a plurality of parts or other material.Handle 53 stretches out from body 51, and the device that is used to hold this instrument 21 when this instrument being connected in valve rod 25 and carry out various operation is provided.Handle 53 preferably constitutes so that make the operator of instrument 21 can cosily hold this handle by human engineering.Body 51 has being generally of horizontal expansion opening 69 cylindraceous, is used to accommodate selector valve 67, and its purpose will be explained below.Various passages (Fig. 3 A-D), for example fluid passage 75, filter passage 77, plunger channel 79, valve core channel 81 and outlet passage 83 (being called " outlet " substantially), opening 69 from the body 51 of this instrument 21 stretches out, to allow this opening to communicate with each parts that is positioned at this body and handle 53 peripheries, this will be explained below.

When instrument 21 linked to each other with valve rod 25, the outlet passage 83 in this body (Fig. 3 A-D) alignd with the central longitudinal axis X of valve stem passage 33 as the crow flies, so that opening 69 and this valve stem passage in the body 51 are connected.This valve connector 55 preferably allows the quick disengagement connector that engages of quick disengagement instrument 21 and valve rod 25.This connector 55 comprises trigger piece 87, and this trigger piece 87 is to be pivotally connected to instrument 21 and to separate spacing with this handle 53, so that available the same hand of holding the handle of this instrument pushes this trigger piece.Connect suitable spring clip 89 at this trigger piece 87, this spring clip 89 can engage releasably instrument 21 is connected in this bar with valve rod 25 through operation.For example, extruding trigger piece 87 is removed spring clip 89 from valve rod 25, to allow placing this above valve rod connector 55.Throw off this trigger piece 87 and allow spring clips 89 under the effect of the spring force of himself, to move to engage, thereby releasably instrument 21 is connected in this bar with valve rod 25.The making of this connector and operation are as U. S. Patent 4,276, and No. 898 disclosed such, have been that here narration only is for a kind of method that connects this instrument and tire valve assembly is provided known to the public as prior art.Other connecting means for example connects the method for the supply pipeline of gas or liquid in the prior art for being used to known to the public, also can be applied and do not depart from the scope of the present invention.

As seeing clearly from Fig. 3 A-D, extend so that the opening 69 in the body is connected with fluid inlet 57 in body 51 and handle 53 fluid passage 75.Connector 91 links to each other in the end of fluid inlet 57 with handle 53, to link to each other with fluid source.Fluid is defined as the mixture of gas (for example air, nitrogen or other are commonly used to the suitable gas to the tyre inflation of wheel assembly), liquid or the gas under pressure or liquid and granular or pulverulent material here.This bulk material preferably is used under various load-up conditions stabilizer assembly W and reduces the fine powder that wheel assembly radially changes with transverse force, and for example U. S. Patent 5,073, No. 217 (here with it as a reference) described materials.A kind of such bulk material wherein is the polymeric plastic material of being sold down at trade mark " EQUAL " by international market company.This fluid source preferably mixes pressurized gas and bulk material and sprays the injection apparatus of this mixture to the inner space of wheel assembly W V, for example by U. S. Patent 5,386, No. 857 and 5,472, No. 023 shown and narrate injection apparatus (here also as a reference) with it.Yet, be appreciated that under the condition that does not break away from the scope of the invention connector 91 also can link to each other with other fluid source, no matter whether be shot-like particle.

This filter passage 77 makes the opening 69 of body 51 be connected with filter insertion import 59, and its size can be accommodated filter core 71.Guide pipe 101 stretches out and inserts import with filter from body 51 and aligns, suitably filter core is directed to the filter passage.The net that filter core 71 preferably is made into by suitable materials such as stainless steel, cloth or nylon, and the bulk material (the big normal running that must be enough to disturb spool 27) that has among the inner space W that can stop wheel assembly W enters into valve stem passage 33, and hardly the flowing velocity of fluid in this valve stem passage is exerted an influence.For example, the size of this mesh is relatively good between about 5 microns to 100 microns, as then better at about 40-50 micron.Shown in Fig. 3 A-D, filter core 71 is generally cup-shaped (for example, the hollow round column of band closed end 93), and closed end flows through on the route of valve stem passage 33 at fluid.The diameter of filter core 71 is slightly smaller than the diameter of valve stem passage 33, so that this filter core is placed on the filter seat 35 in this passage tightly.Because mesh size is little, keep its shape must be enough in being inserted into valve rod 25 time so the rigidity of this filter core 71 is big.

Filter core 71 preferably is pre-formed into cup-shaped, but also can be shaped when being inserted in the body 51 by filter insertion import 59 it.In addition, filter core 71 also can not use net type filter core, but is widely used in the porous medium of filter particulate material by agglomerated material (for example sintered stainless steel, sintering magnesium, sintering manganese and other agglomerated material that adopts known powder metallurgy process to form) or other.The shape that filter core 71 also can be spherical, discoid or other is suitable and not departing from the scope of the present invention.In addition, it is also understood that, as the general is illustrated in the back, filter core 71 also can be fixed on spool 27 with bonding or other suitable method, constitute a sealing valve unit with filter core and spool by this combination, the sealing control valve unit will be inserted into filter and insert import 59 to supply to the opening 69 of body 51 by filter passage 77.

Shown in Fig. 3 A-D, filter is laid assembly 61 and can be removed to allow by filter insertion import 59 filter core 71 being placed to filter passage 77 from body 51.Can on body 51, lay assembly 61 then again and push filter core 71 with the opening in body 69.This assembly 61 comprises and has the columniform lid 95 of being generally of a closure tip and an open bottom.Helical spring 97 pushing contacts in the lid 95 are at the seat 99 adjacent with the open end of this lid, and this seat 99 can contact with guide pipe 101.This 99 and the size of guide pipe 101 cover 95 for a short time slightly than this this seat and guide pipe are made telescopic slide relatively so that allow this lid.When will covering 95 when pushing away downwards at this seat and guide pipe, guide pipe 101 as the reaction surface of seat 99 with pressure spring 97.Connect the push rod 103 that extends to body 51 middle filtrator passages 77 by seat 99 and guide pipe 101 at the top of this lid 95, these push rod 103 long enoughs during with convenient pressure spring 97 free end 104 of this push rod positively reach the opening 69 of body.This 99 can with the flange engages of push rod 103, be arranged in this lid 95 to keep this seat and spring 97 and this push rod to form assembly ground.

In most preferred embodiment, the diameter of the free end 104 of push rod 103 is slightly smaller than the diameter of filter core 71, so that this push rod is in the open end of this cup-shaped filter core, the opening 69 in body 51 pushes this filter core.Can understand, also can use being used for of other, and not depart from the scope of the present invention by the device of this passage 77 to the opening 69 propelling movement filter cores 71 of body 51.

Plunger channel 79 is communicated with the opening 69 of body 51 with plunger assembly 65, and aligns with the central longitudinal axis X of valve stem passage 33.Shown in Fig. 3 A-D, this plunger assembly 65 comprises guide pipe 105 and plunger 107, this guide pipe 105 links to each other with body 51 and stretches out from this body alignedly with plunger channel 79, this plunger 107 can move back and forth in guide pipe 105 by working stroke and reverse stroke, in this working stroke, the working end of this plunger is that head 109 moves in the opening 69 of body 51 and enters into valve stem passage 33 by outlet passage 83, in this reverse stroke, the head of this plunger is pulled back to plunger channel or enters into guide pipe fully.These plunger 107 best long enoughs are to extend into valve stem passage 33 when mobile in its working stroke.Be equipped with at the top of guide pipe 105 and cover 117, be used for fixing this plunger 107 at this pipe.Be appreciated that under the condition that does not break away from the scope of the invention this plunger assembly 65 also can be flexible, so that this plunger assembly needn't align with the central longitudinal axis X of valve stem passage 33, as long as the head 109 of plunger 107 can move to valve stem passage.

The size of the head 109 of plunger 107 diameter than filter core 71 slightly is little, being in the cup-shaped open end of this filter core, thereby this filter core is pushed valve stem passage 33.This head 109 is preferably formed as to forked so that match with the plane 47 of spool plug-in unit 45.Plunger 107 can be around the revolution of its axis, with spool 27 precession valve rods 25.For the ease of operation and control plunger, hold 113 discoidal knob 111 is installed at opposite (tail) of plunger 107.Connect annular stop 114 at plunger 107, in guide pipe 105, to move.The opening of the guide pipe 105 that the size of this stop member 114 is extended therein greater than plunger 107, so that enter working stroke in the valve stem passage 33 by this plunger of this stop limits, thus the insertion depth of restriction filter core 71 in this passage.The suitable seal circle 115 that is placed in the circular groove of this stop member 114 forms sealing between this stop member and this guide pipe 105, escape from the inner space V of wheel assembly W with prevention compressed fluid when using plunger 107, thus the pressure in the maintenance wheel assembly.

Though illustrated and illustrated the situation that the opening 69 of this plunger channel 79 in body 51 extends, but can understand, this plunger channel also can extend in this body, so that this plunger channel aligns as the crow flies with valve stem passage, this filter passage also can align as the crow flies with this plunger channel, directly is placed to this plunger channel and is pushed into this valve stem passage by this plunger through this plunger channel so that be contained in the filter core of this filter passage.

Valve core channel 81 inserts import 63 with opening in the body 51 69 and spool and is communicated with to provide spool 27 to this opening.As needs, can lay assembly 61 with above-mentioned filter and push spool 27 to this opening 69.Be appreciated that under the condition that does not break away from the scope of the invention spool 27 also can be housed in filter passage 77 rather than be housed in valve core channel 81.

As shown in Figure 4, selector valve 67 (put it briefly, be " shifter " and " mobile filter core 71 make that it aligns with plunger channel 79 and valve stem passage 33 device ") is installed in the opening 69 of body 51 pivotally, to select to finish the various operations of instrument 21.Selector valve 67 is generally cylindric, and preferably adopt two amalgamations structures that have cylindrical core 119 and be centered around this core sleeve 121 on every side, this cylindrical core 119 is made by brass or other proper metal, and this sleeve 121 is made of politef (Te Fulong) or other suitable seal, low-friction material.The diameter of selector valve 67 is slightly smaller than the diameter of the opening 69 of body 51, so that this selector valve tightly is engaged in this opening.For example, the diameter of selector valve shown in Figure 4 is approximately 1.25 inches.Yet the diameter of selector valve 67 can change according to the diameter of the opening 69 of the size of instrument 21 and body 51.Politef sleeve 121 is sealed in body with this selector valve and allows selector valve 67 around relative body 51 revolutions of rotational axis Y, and this rotational axis Y is along the horizontal expansion of body.Shown in Fig. 3 D, this axis Y departs from apart from D from the longitudinal axis X of valve stem passage 33, yet can understand, and selector valve 67 can intersect with this longitudinal axis of this valve stem passage and not depart from the scope of the present invention.

Selector valve 67 is fixed on by snap ring 123 (Fig. 4) in the opening 69 of body 51, and this snap ring 123 matches with the annular slot 125 of body 51 in the both sides of selector valve.Between each snap ring 123 (generally being made of metal) and selector valve 67, settle non-metallic gasket 127, grind mutually with this snap ring with the core that prevents this valve when this valve turns round.Yet can understand, under the condition that does not break away from the scope of the invention, also can be without snap ring 123 and packing ring 127, but come pivotally in the opening 69 of body 51 fixedly selector valve 67 with other device, as long as this valve can be freely around its rotational axis Y this opening revolution relatively.The revolution of selector valve 67 between the precalculated position in the opening 69 of body 51 is subjected to the influence of lever 129, and this lever 129 is engaged on the minor axis of stretching from an epitaxial lateral overgrowth of this selector valve 131.

2 passages are that hole 133,135 extends through selector valve 67, and, when this selector valve of revolution between different desired location (Fig. 3 A-D), can selectively align with a plurality of

passages

75,77,79,81,83 that in body 51, extend.This body 51 or this selector valve 67 can be provided with the appropriate location that stop position-limit mechanism (not shown) guarantees that valve opening 133,135 aligns with

passage

75,77,79,81,83.Shown in Fig. 3 A-D, select valve opening 133,135 to be separated from each other fully, be not communicated with between these holes.The direction that this hole 133,135 is gone back angulation each other and pointed to the string of selector valve 67 is not so that extend along the rotational axis Y of selector valve in any hole.For example, in most preferred embodiment, these holes 133,135 approximately become the angle of 45-50 degree mutually.Yet this relative angle can change according to the position of a plurality of

passages

75,77,79,81,83 in the body.

Referring now to the operation of accompanying drawing 3A-D explanation according to the instrument 21 of method of the present invention.Adjust the pressure in the inner space of wheel assembly W, tire T (no matter be newly or old) is carried out the part inflation, for example, be charged to half of its rated pressure.As shown in Figure 3A, hold the trigger piece 87 of handle 53 and squeeze valve rod connector 55, on valve rod, place this connector, discharge this trigger piece then and carry out the position that engages that to throw off to allow spring clip 89 to be moved to valve rod in the effect of himself spring force, so that instrument 21 is fixed on the valve rod 25, thereby this instrument 21 is releasably engaged with this valve rod 25.At first plunger 107 is being regained, be recovered to guide pipe 105 or plunger channel 79 with head 109 with this plunger, selector valve 67 is in the 1st desired location, aligns so that valve stem passage 33 is communicated with fluid source with the outlet passage 83 and the fluid passage 75 of body 51 in the 1st hole 133 of the 1st this selector valve of desired location.Then, the mixture of bulk material and pressurized gas sprays into this fluid inlet 57 and flows through the 75, the 1st hole 133, fluid passage and outlet passage 83, thereby sprays the inner space V that enters into wheel assembly W by valve stem passage 33.After bulk material was ejected into inner space V, pressurized gas entered into fluid inlet 57 and enters into the inner space V of wheel assembly W through valve stem passage 33, tire R is inflated to the pressure of expectation.

Being at selector valve 67 under the state of the 1st desired location, aligns with filter passage 77 in the 2nd hole 135 of this selector valve.Filter is laid assembly 61 remove, insert import 59 through filter and in this passage, lay filter core 71 from body 51.Then this assembly 61 is placed to this import 59 again, makes the free end 104 of push rod 103 extend into filter passage 77 and be in the open end of this cup-shaped filter core 71.Push away down on guide pipe 101 to the lid 95 of body 51, thereby filter core 71 is pushed the 2nd hole 135 in the selector valve 67 by push rod 103 with this assembly 61.Should cover 95 and push away downwards compressed helical spring 97 when guide pipe 101, and make this lid away from body 51 thus, like this, when discharging this lid, this push rod 103 withdraws from from the 2nd hole 135.The other end in the 2nd hole 135 is made filter core 71 remain on like that in this hole as shown in Figure 3A always and is turned back to another desired location up to selector valve 67 by body 51 sealings.

Be placed in the 2nd hole 135 of selector valve 67 under the state at this filter core 71, forward this selector valve to the 2nd desired location with lever 129, as finding out from Fig. 3 B, at the 2nd desired location, no longer align with the fluid passage 75 and the outlet passage 83 of body 51 in the 1st hole 133, thereby prevention gas is escaped out through this fluid passage from the inner space V of wheel assembly W, and, lay the 2nd of filter core 71 therein and select valve opening 135 to align with the central longitudinal axis X of valve stem passage 33, this valve stem passage 33 is alignd with plunger channel 69 and outlet passage 83.At this desired location, the head 109 of plunger 107 is preferably faced in the open end of cup-shaped filter core 71.Forward plunger 107 is pushed guide pipe 105, move on to the 2nd hole 135, be placed in the open end of cup-shaped filter core 71 with head 109 with this plunger.Further forward the motion of plunger 107 promotes filter core 71 and enters into valve stem passage 33 in the outlet passage 83 of this alignment, contact with filter seat 35 in the valve rod 25 up to this filter core.By return stroke plunger 107 is retracted then, move back to plunger channel 79 (or getting back to guide pipe 101) with head 109 with this plunger.There is not filter seat 35 as valve rod 25, then can understand, the working stroke of plunger 107 will be limited in the top of guide pipe 105, limit the degree of depth that filter core 71 is inserted into valve stem passage 33 thus, so this filter core is fixed on this filter core in this valve stem passage the closely cooperating of inside of this valve rod.

Next step is with lever 129 selector valve 67 to be rotated to the 3rd desired location (Fig. 3 C), and at the 3rd desired location, align with valve core channel 81 in the 2nd hole 135.Shown in Fig. 3 C, spool 27 is inserted import 63 through spool and is placed to valve core channel 81, and is pushed into the 2nd hole 135 in the selector valve 67.As needs, can in valve core channel 81, use filter to lay assembly 61 spool 27 is pushed into the 2nd hole.The opposite end in the 2nd hole 135 is by body 51 sealings, spool 27 is remained on the 2nd hole up to selector valve 67 is moved to different desired locations always.

Shown in Fig. 3 D, under the state in the 2nd hole 135 that spool 27 is placed in selector valve 67, with lever 129 with this valve rotate back to its 2nd desired location so that align again in the 2nd hole outlet passage 83 and plunger channel 79.Then by its working stroke mobile plunger 107 to shift spool 27 onto valve stem passage 33.This plunger 107 should be moved enough distances so that the fork-shaped head 109 of this plunger is engaged in the plane 47 of the threaded plug-in unit 45 of spool 27, this the point, around its axis rotary plunger 107 with this spool of turn, its internal thread with the upper end 31 of valve rod 25 is engaged, thereby this core is fixed on valve stem passage 33.By spool 27 and the filter core 71 installed by this method, can prevent bulk material among the inner space V of wheel assembly W, that have the size that to disturb the spool normal running valve stem passage 33 of flowing through with this filter core, and can allow other fluid under pressure to flow through this passage.Then, by the trigger piece 87 of squeeze valve rod connector 55 once more, mobile spring folder 89 is thrown off itself and the engaging of this valve rod, this instrument is pulled away from from this bar, thereby with this instrument 21 from valve rod 25 disengagements.

Though the situation with artificial operation tool 21 here has been described, but can understand, a plurality of functional units of this instrument, comprise that lever 129 and selector valve 67, valve rod connector 55, filter lay assembly 61 and plunger 107, also can operate automatically, be inserted into speed in the wheel assembly to improve filter core.In addition, only the outlet passage in the body 51 83 needs central longitudinal axis X alignment along valve stem passage 33.Under the condition that does not break away from the scope of the invention,

remaining passage

75,77,79,81 and parts can be positioned at body 51 rather than as described herein.In addition, though shown here with narrated selector valve 67 and in body 51, turned round and had the situation of the rotational axis Y vertical with this body, but the embodiment that can understand a plurality of other selector valves also belongs to scope of the present invention, as in the plane of this body, having the selector valve of rotational axis, in the operating process of other tool component, as long as this valve allows the fluid passage to enter valve stem passage 33 when moving to the 1st position and stop the fluid passage to pass in and out this valve stem passage when moving to the another location.

Provide the filter passage 77 that separates with plunger channel 79 to allow filter core 71 to be installed to valve stem passage 33 and need not also need not to remove this plunger 107 from valve rod 25 disengagement instruments 21 from its guide pipe 105, therefore can reduce the danger of losing plunger, the pressure loss among the inner space V of minimizing wheel assembly W, and can be provided in valve stem passage 33, inserting the effective of filter core 71 and reliable instrument.The mesh size of filter core 71 can prevent that bulk material from entering into valve stem passage 33 and potentially to the operation generation harmful effect of spool 27, therefore, can reduce the danger of gas from the inner space V leakage of wheel assembly W.

In addition, provide fluid passage 75, valve core channel 81 and selector valve 67 to allow the user not throwing off under the state of this instrument from this valve rod, optionally will be in fluid jet under the pressure in the inner space V of wheel assembly W, filter core 71 is inserted into valve stem passage 33, spool 27 is installed, thereby is improved the efficient of this instrument 21.This manufacturing for new tire (spool 27 is not installed this moment) is particularly useful.

As mentioned above, can understand, filter core 71 can link to each other with spool 27, as single sealing valve unit (representing at Fig. 6-13 usefulness label 72) spool and filter core be installed to valve stem passage 33 or remove from it.Fig. 6-9 illustrates the 1st embodiment of sealing valve unit of the present invention.The lower end 223 of the axle 219 of seal arrangement 213 is extended, this lower end 223 is preferably the have rounded bottom frustoconical of (Fig. 7), or be roughly sphere (Fig. 8 and 9), or other shape, for example: with flat frustoconical, hemisphere or dome shape, cylindrical, disc or other suitable shape.This end 223 that has enlarged is fixed to axle 219 by suitable fastening, the end clips that for example this has been enlarged is tightened to this axle guaranteeing its joint, yet, can understand, this end that has enlarged also can form as one with this axle.This expansion of 219 the maximum transversal diameter of lower end 223 enough bigger than this diameter, but than the diameter of valve stem passage 33 sufficiently little with the expansion that allows this end freely in this passage the central longitudinal axis X along this valve stem passage move.

Filter core 71 fine mesh wire that suitable material is made of preferably serving as reasons as explained above.In this embodiment, filter core 71 is roughly balloon-like, has the circular body 301 of expansion and tiny neck 303.Filter core 71 is open at its neck 303, and can be engaged in the seal arrangement 213 of 223 tops, end that are positioned at axle 219 expansion so that the body of this filter core 301 around this expansion the end and this filter core neck around this expansion the part of axle outside of end.The diameter of this neck 303 is preferably less than the maximum transversal diameter of the body 301 of filter core 71, but greater than the diameter of axle 219.As shown in Figure 9, the expansion of filter core 71 body 301 have sidepiece 307 and filter end 305, this sidepiece 307 can engage with the internal surface of valve rod 25, valve stem passage 33 extensions are crossed in this filtration end 305 below the sidepiece 307 of this filter core.When discharging the body 301 of filter core 71, it has the maximum diameter greater than valve stem passage 33, when in this passage spool 27 being installed, makes the sidepiece 307 of this filter core frictionally engage in the internal surface of valve rod 25.Filter core 71 is enough soft, can adapt to the internal surface of valve rod 25 when filter core frictionally engages within the internal surface of this valve rod fully.

As shown in Figure 6, filter core 71 is connected in the axle 219 of seal arrangement 213 by the fixing device of representing with label 311, the neck 303 of filter core is fixed in such position, in this position, the diameter of this neck fully less than the expansion of axle 219 the maximum transversal diameter of end 223.This fixing device 311 is preferably by what metal or plastics were made and is with 313, and this centers on the neck 303 of filter core 71 this filter core is remained on the axle 219 with 313.This with 313 diameter can be adjusted fully less than the expansion of axle 219 the maximum transversal diameter of end 223.Thereby, filter core 71 can not be from the expansion of axle 219 end 223 slippages, filter core is maintained at seal arrangement 213, removes from this valve rod simultaneously thereby allow valve body 205, black box 211 and filter core 71 to be installed to valve rod 25 simultaneously and to allow.In the described embodiment of Fig. 6-9, filter core 71 and with 313 filter assemblies that constitute substantially together by label 70 expressions.

Preferably only adjusting to 313 of this filter assemblies 70 makes filter core 71 loosely be connected in the diameter of seal arrangement 213, rather than is sandwiched in the there tightly.This frictionally is engaged in the end 223 that allows axle 219 during the internal surface of valve rod 25 and enlarged accordingly and vertically moves with respect to filter core 71 at filter core.Though filter core 71 general deformables, its rigidity is enough to relative valve rod 25 and remains on fixing position when seal arrangement 213 is mobile between its open and closing position.The expansion of filter core 71 body 301 look and be enough to allow axle 219 in filter core, to move, when moving to its open position with convenient seal arrangement 213, as shown in Figure 7, axle 219 expansion end 223 adjacent with the filtration end 305 of this filter core, at closing position, this expansion the end and the neck 303 of this filter core adjacent.Yet, can understand, under the condition that does not break away from the scope of the invention, filter core 71 also can clip to seal arrangement 213 tightly so that together move with this axle in this passage 33.

Though be shown in the axle 219 that the filter core 71 of Fig. 6 remains on seal arrangement 213, can understand, this filter core also can remain on seal carriage 217, to be surrounded this whole axle by this filter core.In addition, under the condition that does not break away from the scope of the invention, filter core 71 also can remain on the valve body 205, so that seal carriage 217 and axle 219 can move in this filter core.Can also understand, also can be used for filter core 71 is remained on seal arrangement 213 with the device beyond 313, for example the flexible steel wire (not shown) is passed net with the filter core of its neck 303 adjacency, draw with strength with neck 303 to bind around axle 219, or the some parts of the neck 303 of filter core 71 folded into the other parts of this neck and these parts are welded together for good and all to reduce the diameter of this neck filter core.In addition, under the condition that does not break away from the scope of the invention, the diameter of the neck 303 of filter core 71 also can equal the maximum transversal diameter of the body 301 of this filter core at first, with this filter core that slides on the end 223 that has been easy in the expansion of axle 219, as long as this filter core is a balloon-like when the diameter of the neck of this filter core reduces and remained in position by fixing device 311.

As shown in Figure 9, spool 27 is installed in this passage by the form of suitable setting tool (for example above-mentioned instrument 21) with single sealing valve unit 72 with the filter core 71 that links to each other.For example, when this instrument 21 of use, with spool relevant mode is installed, spool 27 (comprising valve body 205, black box 211 and the filter core 71 that links to each other) is placed to plunger channel 79 (laying filter core earlier) as single assembly with above-mentioned.When sealing valve unit 72 being pushed down into valve stem passage 33 by plunger 107, axle 219 expansion end 223 contact filter cores 71 expansion the filtration end 305 of body 301, so that this filter core is pushed valve stem passage 33 downwards.The flexibility of this filter core 71 allow filter core 71 expansion the sidepiece 307 of body 301 adapt to the internal surface of valve rod 33 in the mode of frictional engagement so that must the flow through filtration end 305 of filter core 71 of the fluid of all valve stem passage 33 of flowing through basically.In case this device 72 is installed to valve stem passage 33 fully, then with valve pin 43 moving sealing device 213 between its opening and close encapsulation portion.When between and the close encapsulation portion open at it during moving sealing device 213, the frictional engagement of filter core 71 and the internal surface of valve rod 25 remains on fixed position in the passage 33 with filter core 71.So, axle 219 expansion end 223 in fixing filter core 71, be along the longitudinal movement.

In order to remove filter core 71, throw off valve body 205 from valve rod 25, and this passage upwards draws spool 27 relatively from valve stem passage 33.When the expansion of axle 219 end 223 when valve stem passage 33 upwards shifts out, what it abutted against filter core 71 is with 313 and neck 303, thereby draws this band and this filter core with valve body 205 and black box 211 from this valve rod.

Figure 10 and 12 illustrates the 2nd embodiment of sealing valve unit 72.Generally comprise spring seat 423 and the filter core 71 that links to each other with the lower end 223 of the axle 219 of seal arrangement 213 by the filter assemblies of label 70 expressions.As shown in figure 10, the spring seat 423 of filter assemblies 70 is generally cylindric, generally has closed end 424 and is suitable for being sitting in the open lower 426 of the interior annular flange flange 35 of valve rod 25.The part 428 of the formation otch of spring seat 423 has promoted fluid flowing in valve stem passage 25.The closed upper end 424 of spring seat 423 has the opening that axle 219 extends therein.Axle 219 lower end 223 is expanded the size enough bigger than this opening to, so that spring seat 423 can be from this lower end slippage, thereby filter assemblies 70 is remained on this axle.

Filter core 71 constitutes frusto-conical, has roomy open end 415, sidepiece 407 and narrow filtration end 405.The roomy open end 415 best valve bodies 25 of filter core 71 towards spool 27.When discharging filter core 71, the sidepiece 407 of this filter core has the maximum diameter bigger than the diameter of valve stem passage 33, the internal surface frictional engagement of it and valve rod 25 when being installed on spool 27 in this passage with box lunch.The filtration end 405 of filter core 71 comprises the part that is in the filter core 71 of sidepiece below 407 that engages with the internal surface of valve rod 25.And be suitable for general horizontal expansion in valve stem passage 33.Filter core 71 is enough soft positively to adapt to the internal surface of valve rod 25 when this filter core frictionally engages in the internal surface of valve rod.

Filter core 71 is preferably formed by the annular mesh screen (not shown) along its radius cutting initial, is configured in the upper end of spring seat 423 around the axle 219 of seal arrangement 213 to allow this filter core.Will be by the loose end of the filter core 71 that constitutes of cutting radially overlapping slightly and soldering together so that filter core can not removed from axle 219, thereby this filter core is remained on the seal arrangement 213.Be further appreciated that filter core 71 can be pre-formed into the frusto-conical with central opening (not shown), so that before spring seat 423 is connected to this axle, this filter core can be coupled to axle 219.

Between the upper end 424 of seal carriage 217 and spring seat 423, to be used for seal arrangement 213 applies elastic force towards its close encapsulation position spring 421 is loosely remained on the axle 219 of sealing device, thereby between this spring and this spring seat, filter core 71 will be fixed on the sealing device by clamping.The spring (not shown) that is configured in valve body 25 works with the spring 421 1 that remains on axle 219, and further pushing seal arrangement 213 to its closing position, yet the spring in this valve body also can save and not depart from the scope of the present invention.As shown in figure 12, when the sealing device moves to its open position, spring 421 also applies elastic force to spring seat 423 and filter core 71 downwards in this valve stem passage, so that the contact of this spring seat is in the interior annular flange flange 35 of valve rod 25 and be maintained fixed (with filter core).Be appreciated that under the condition that does not break away from the scope of the invention filter core 71 can remain between seal carriage 217 and the spring 421 on the axle 219.

With further reference to Figure 12, the instrument 21 for example above-mentioned by suitable setting tool is installed in valve stem passage 33 with sealing valve unit 72.For example, in the process of this instrument 21 of use, as stated above this device 72 is laid into plunger channel 79 (laying filter assemblies earlier).When this device 72 advanced valve stem passage 33 downwards by plunger 107, the filter core 71 that remains between spring seat 423 and this spring 421 was further advanced this passage downwards.

The flexibility of filter core 71 allows sidepiece 407 positively to adapt to the internal surface of valve rod 25 when frictional engagement, so that the fluid of all these passages of flowing through must be through the filtration end 405 of this filter core basically.This device 72 is pushed downwards valve stem passage 33 into engages these valve rods up to the threaded upper end 207 that spring seat 423 engages the interior annular flange flange 35 of valve rods 25 and valve body 205 internal thread.In case sealing valve unit 72 is installed in valve stem passage 33 fully, then uses valve pin 43 that seal arrangement 213 is moved between its opening and close encapsulation position.

When seal arrangement 213 moved to its open position, the axle 219 relative spring seats 423 and the filter core 71 of sealing device moved down.Seal carriage 217 is compressed the spring 421 between this carriage and spring seat 423, so that this spring seat is applied spring force downwards by being biased in the valve stem passage 33 of this spring, thereby keeps the interior annular flange flange 35 of spring seat and valve rod 25 to join.Therefore, when seal arrangement 213 moved to its open position, filter core 71 was maintained fixed, and the axle 219 of seal arrangement 213 longitudinally moves the opening in the upper end 424 of the filtration end 405 of fixing filter core 71 and spring seat 423.

For removing filter core 71 from valve stem passage 33, valve body 205 is thrown off from valve rod 25, this passage upwards draws sealing valve unit 72 relatively.Axle 219 the expansion of seal arrangement 213 lower end 223 contacts in the upper end 424 of spring seat 423 so that this spring seat and filter core 71 are upwards pulled out valve stem passage 33, thereby remove this filter core with valve body 205 and black box 211 from valve rod 25.

Figure 11 and 13 illustrates 3rd embodiment similar to the 2nd embodiment of sealing valve unit 72 of the present invention.The filter core 71 of filter assemblies 70 is generally cup-shaped, has to be generally columnar sidewall 507 or sidepiece, open end 515 and by the filtration end 505 that constitutes with this open end end wall in opposite directions.Filter core 71 is adapted to fit on the spring seat 423, (comprise sidewall 507 and filter end 505) around spring seat 423 so that the body of this filter core 501, a part that is positioned at the spring seat top of surrounding the spring 421 that remains on the axle 219 with the neck 503 of this filter core of its open end 515 adjacency.In the time of in being installed in valve stem passage 33, the filtration end 505 of filter core 71 engages with the interior annular flange flange 35 of valve rod 25, and by this spring seat 423 this filter core is remained on the fixed position.This filtration end 505 is suitable for crossing generally speaking valve stem passage 33 extends, so that the fluid of all these passages of flowing through all passes through the filtration end of filter core 71 basically.

Filter assemblies also comprises and generally is expressed as 511 holding device, filter core 71 is connected to the axle 219 of seal arrangement 213.Holding device 511 is fixed on such position with the neck 503 of filter core 71, and in this position, the diameter of this neck is less than the maximum diameter of spring seat 423.In shown embodiment, holding device 511 is for to be with 513 by what metal or plastics were made, and this filter core is remained on the axle 219, this can adjust to the diameter enough littler than the maximum diameter of spring seat 423 with 513 with 513 necks 503 that surround filter core 71 for this.Therefore, filter core 71 can not make this filter core remain on the seal arrangement 213 from spring seat 423 slippages, to allow valve body 205, black box 211 and filter core 71 to be installed on valve rod 25 simultaneously and to remove from this valve rod simultaneously.

This is preferably only adjusted to 513 and makes filter core 71 loosely be connected in the diameter of seal arrangement 213, rather than is sandwiched in the there tightly.Like this, when this filter core remains in fixed position in the valve stem passage 33 between the interior annular flange flange 35 of spring seat 423 and valve rod 25, allow axle 219 to vertically move with spring 421 relative filter cores 71 and spring seat 423.

Filter core 71 shown in Figure 11 remains in the axle 219 of seal arrangement 213, but can understand, and under the condition that does not break away from the scope of the invention, this filter core also can remain on the valve body 205, so that seal carriage 217 and axle 219 can move in this filter core.Can also understand, also can be used for filter core 71 is remained on seal arrangement 213 with the device beyond 513, for example the flexible steel wire (not shown) is passed net with the filter core of its neck 503 adjacency, draw with strength so that the neck of filter core is bound around spring 421, maybe the some parts of the neck of this filter core is folded into the other parts of this neck and these parts are welded together for good and all to reduce the diameter of this neck.

As shown in figure 13, the 3rd embodiment's sealing valve unit 72 can be by being installed in valve stem passage 33 with the 2nd embodiment's similar methods and removing from it.When sealing valve unit 72 is pushed into valve stem passage 33, the filtration end 505 that spring seat 423 presses against filter core 71 to be pushing this passage with this filter core, engages with the interior annular flange flange of this valve rod and the threaded upper end 207 of valve body 205 engages with the internal thread of valve rod 25 up to it.

Figure 15 illustrates the 4th embodiment of sealing valve unit 72 of the present invention.The 4th embodiment is similar to the 3rd embodiment basically, and different just filter cores 71 directly link to each other with spring seat 423 by welding or other suitable connecting means.

Figure 16 and 17 illustrates the 5th embodiment of sealing valve unit 72, and it is similar to the 2nd, 3 and 4 embodiments, and different just filter assemblies 70 comprises filter housings 651 that links to each other with the lower end 223 of axle 219 and the filter core 71 that is configured in this housing.This filter housings 651 is generally cylindrical shape and has the passage 653 that extends between the upper end 624 of this housing and lower end 626.The size of the lower end 626 of filter housings 651 makes and can be on the interior annular flange flange 35 of valve rod 25 when this device 72 is installed in the valve stem passage 33, so that all debouch the fluid of this tire T through the passage 653 in this filter housings by this valve stem passage basically.In described embodiment, filter housings passage 653 enlarges in the position of the lower end 626 of contiguous this housing 651, so that its diameter is a bit larger tham the diameter of valve stem passage 33 at interior annular flange flange 35 places of valve rod 25.This filter housings passage 653 narrows down when to 624 extensions of the upper end of housing 651 fully, thereby constitutes the interior annular flange flange 655 of this shell.

Filter core 71 is generally disc and its size part that made the expansion that can be coupled to shell channel 653, so that generally be in the interior annular flange flange 655 of filter housings 651.Filter core 71 frictionally engages within the internal surface of filter housings 651 so that this filter core is fixed on this housing.In the expansion of shell channel 653 part insert and have the retaining ring 657 that can carry out the size of frictional engagement with the internal surface of filter housings 651, between the interior annular flange flange 655 of this ring and this housing, this filter core is fixed on this passage.Be appreciated that under the condition that does not break away from the scope of the invention, also can filter core 71 be fixed in this housing 651, for example filter core is welded on the internal surface of this housing or adopts other suitable method with this method of encircling beyond 657.

As shown in figure 17, filter housings 651 is enough littler than the diameter of valve stem passage 33, so as between the internal surface of filter head housings external surface and valve rod 25 looping gap 659.Outer annular groove 661 communicates around this filter housings extension and with this gap 659.The opening 663 of filter housings 651 crosses housing 653 extensions and passes to the annular space 659 that is communicated with filter housings passage and valve stem passage 33 mutually with outer annular groove 661.This opening 663 is positioned at the position that filter core 71 tops separate big spacing, so as the fluid that flows out from this tire T before flowing out this housing 651 and flowing to sealing device 213 through this filter element filtering.

Filter shell channel 653 and radially forming tapering near these 624 places, housing 651 upper ends inwardly and up, constitute the opening 665 that diameter has reduced with upper end at this housing.Axle 219 extends and enters in this opening 665 has been filter shell channel 653.Axle 219 lower end 223 is expanded the enough big size of diameter than the opening 665 at 624 places, upper end of housing 651 to, so that this housing can be from this lower end slippage, thereby this housing is connected to this axle.Yet, axle 219 expansion lower end 223 have size less than the diameter of filter housings passage 653, when mobile allow this axle in housing 651 be along the longitudinal movement at it between the open and closing position with convenient seal arrangement 213.

Spring 421 on this extends between the upper end 624 of seal carriage 217 and filter housings 651,223 pairs of these filter housings in lower end towards axle 219 apply spring force, are maintained fixed on the interior annular flange flange 35 of this housing at this valve rod when mobile between the open and close encapsulation position at it with convenient seal arrangement 213.This spring 421 is also pushed seal arrangement 213 to its closing position.In the illustrated embodiment, spring 421 loosely is on filter housings 651 and the carriage 217, but can expect, under the condition that does not break away from the scope of the invention, this spring also can be fixed on this housing and/or the sealing part carriage.The spring that is disposed at this valve body 205 is also shifted sealing device 213 onto its closing position, yet under the condition that does not break away from the scope of the invention, this spring also can save.

As shown in figure 17, sealing valve unit 72 is installed in the valve stem passage 33 by for example above-mentioned instrument 21 of suitable setting tool.For example, when this instrument 21 of use,, sealing valve unit 72 (comprising valve body 205, black box 211 and filter assemblies 70) is placed to plunger channel 79 (laying filter assemblies earlier) as single assembly in above-mentioned mode.This device 72 is engaged the internal thread of these valve rods by plunger 107 to the threaded upper end 207 that valve stem passage 33 pushes the interior annular flange flange 35 that engages valve rods 25 up to the lower end 626 of filter housings 651 and valve body 205.In case sealing valve unit 72 is installed to valve stem passage 33 fully, then with valve pin 43 moving sealing device 213 between its opening and close encapsulation position.

When seal arrangement 213 moved to its open position, the axle 219 of sealing device moved relative to filter housings 651 downwards in valve stem passage 33, and move in this housing the lower end 223 of this axle.Seal carriage 217 is pressure spring 421 between the upper end 624 of this carriage 217 and this housing 651, contacts with the interior annular flange flange 35 of valve rod 25 regularly to keep this housing so that the elastic force of this spring pushes this filter housings downwards in valve stem passage 33.The fluid that flows out from this tire T flows to the filter housings passage 653 with lower end 626 adjacency of housing 651, and the filter core 71 that is configured in this housing filters.Fluid after the filtration this filter housings passage 653 of upwards flowing through then flows out housings 651 by opening 663, and flows into the valve stem passage 33 at 659 places, gap between this filter housings and valve rod 25 internal surfaces.Then, this fluid flows out valve rod 25 by common mode.Through the defluent fluid of this valve rod along opposite passage for example by these opening 663 inflow filter housings 651, to dirty, enter tire T through shell channel 653 and filter core 71 again.

In order to remove filter assemblies 70, throw off valve body 205 from valve rod 25, and this passage upwards draws sealing valve unit 72 relatively from valve stem passage 33.Axle 219 the expansion of seal arrangement 213 lower end 223 engage the upper end 624 of filter housings 651 and upwards pull out this housing and filter core 71 from valve stem passage 33, thereby remove this filter core with valve body 205 and black box 211 from valve rod 25.

Figure 18 illustrates 6th embodiment similar to the 5th embodiment, and in the 5th embodiment, filter assemblies 70 comprises filter housings 651 and is configured in the filter core 71 of filter housings.In the 6th embodiment, saved this circular groove 661 and opening 663 (Figure 16 and 17), eliminated demand to the gap 659 between filter housings 651 and valve rod 25 internal surfaces.Therefore, though the external diameter of filter housings 651 shown in Figure 180 is less than the diameter of valve stem passage 33, but under the condition that does not break away from the scope of the invention, the outer diameter of this filter housings can increase, as long as this filter housings can move in this valve stem passage 33 to engage with the interior annular flange flange 35 of valve rod 25.

In order to replace circular groove 651 and the opening 653 among the 5th embodiment, the 6th embodiment's filter housings 651 has and its a pair of relative plane 781 of 624 adjacency, upper end and the opening 783 that extends between this pair of planar, so that filter housings passage 653 is communicated with fluid between the valve stem passage 33.The upper end 624 of filter housings 651 is generally the plane, and comprises the opening 665 that axle 219 extends therein.This spring 421 loosely is on the upper end 624 of filter housings 651.

When the 6th embodiment's seal arrangement 213 moved to its open position, the axle 219 of sealing device relative filter housings 651 in valve stem passage 33 moved down, and move in this housing the lower end 223 of this axle.Seal carriage 217 is pressure spring 421 between the upper end 624 of this carriage 217 and this housing 651, so that the elastic force of this spring pushes filter housings downwards in valve stem passage 33, thereby keeps this housing to contact with the interior annular flange flange 35 of valve rod 25 regularly.The fluid that flows out from tire T flows to the filter housings passage 653 of lower end 626 adjacency of this housing 651 and by the filter core 71 that is disposed at this housing and filters.Fluid after the filtration filter housings passage 653 of upwards flowing through then, and through and the plane 781 of upper end 624 adjacency of this housing between the opening 783 that extends flow out these housings 651 (and entering valve stem passage 33).This fluid flows out in common mode then.The fluid of this valve rod flow through downwards along opposite channel flow, for example enter filter housings 651, flow downward and enter tire T through shell channel 653 and filter core 71 through opening 783.

Though illustrate and narrated the situation that fluid that sealing valve unit 72 with Fig. 6-17 is used for being controlled at the valve rod 25 of turbine assembly W flows, but be appreciated that, under the condition that does not break away from the scope of the invention, these devices can be used for any amount of other tubular shell with the internal surface that constitutes the fluid passage.For example, with spool control utility line, automobile, family expenses and business air conditioner device, soda machine, and other need control the device that the fluid in the housing flows.The spool that now is used for these devices can be replaced by present sealing valve unit.The passage that is made of these devices is generally very little, and therefore spool and the filter core that is installed in these passages must be also correspondingly little.For example, be shown in the diameter that filter core in the embodiment of the invention preferably has the 0.1-0.2 inch.Yet by using the disclosed mesh size of this filter core, the speed that the fluid in this passage flows generally is not subjected to the installation influence of this filter core in this passage.

Find out by above-mentioned, filter core 71 is fastened or connected to spool 27 can satisfies various purpose of the present invention and obtain other favourable result.For example, because filter core 71 can be used as single assembly and spool 27 is installed simultaneously, adopt filter to insert the filter inserting step of separating in the said method of instrument so can omit.Corresponding therewith, the filter of filter passage 77 and this instrument is laid assembly 61 and also can be omitted, thereby simplifies the structure and the operation of this instrument.In addition, spool 27 and filter core 71 can be removed and be changed from valve stem passage 33, and need not add surcharge and the effort relevant with changing valve rod 25.

Because filter core 71 remains on spool 27, so fall down and lose the risk minimizing of filter core 71.Allow simultaneously to remove filter core 71 and spool 27 also no longer needs independent filter core to remove instrument from valve stem passage 33.In addition, because the parts with this valve assembly are fastened on a fixing position with filter core, for example by filter core 71 being frictionally engaged within the internal surface of valve rod 25, or shift this filter onto fixed position by spring 421, so the structure that need not add in the valve rod (or other tubular shell) or mechanical device are installed to this filter core valve rod and this filter core is remained on fixed position in this passage 33, thereby make and be easy in this passage, install spool 27 and filter core.

Particularly the 1st embodiment's (Fig. 6-9) sealing valve unit 72 can be installed to the mobile any passage of fluid that needs in the control channel, wherein, the spring (not shown) of spool 27 is housed in the valve body 205, so that do not need spring seat and the inward flange 35 that is used to place this spring seat.

Owing to can in said structure and method, make numerous variations under the condition that does not break away from the scope of the invention, so all are contained in above-mentioned explanation and all should are illustrative and not restrictive by the content shown in the accompanying drawing.

Claims

1. sealing valve unit, the flowing of fluid that is used for control channel, this passage is surrounded by the internal surface of tubular shell, and the sealing control valve unit has the inner and outer end and is suitable for inserting the passage that is inserted into this tubular shell earlier along direction inwardly innerly, and described sealing valve unit comprises:

Have longitudinal axis and pass the valve body in vertical hole wherein, when the longitudinal shaft that this valve body is inserted into the passage of this tubular shell and arrives this valve body during usually with the coaxial position of this passage, described valve body is releasably connected to this tubular shell;

Valve seat on this valve body;

Black box, comprise and be suitable for the seal arrangement that engages with this valve seat, the sealing device can move to the open position from the close encapsulation position along relative this valve seat of direction inwardly, in this close encapsulation position, the sealing device engages this valve seat hermetically and flows through hole in this valve body to stop fluid, in this open position, sealing device and this valve seat partition distance flow through in this hole to allow fluid; And

In abutting connection with the filter core of sealing control valve unit the inner, the particulate matter that its structure can stop size to be enough to disturb the sealing device to move to its close encapsulation position really passes through;

The structure of described valve body, black box and filter core can make it be independent of this tubular shell ground and be held in assembly mutually, is installed on the tubular shell passage simultaneously and can be used as single device and side by side remove from this tubular shell passage so that they can be used as single device.

2. sealing valve unit as claimed in claim 1 is characterized in that: described filter core is connected to the sealing device.

3. sealing valve unit as claimed in claim 1 is characterized in that: when described seal arrangement was mobile between its opening and closing position, the sealing device can move relative to this filter core.

4. sealing valve unit, the fluid that is used for controlling the passage of the tubular shell with inward flange flows, and the sealing control valve unit has inner and outer end and being suitable for along the slotting earlier passage that inserts this tubular shell of direction inwardly innerly, and described sealing valve unit comprises:

Valve seat on this valve body;

Black box, comprise and be suitable for the seal arrangement that engages with this valve base sealing, the sealing device can move to the open position from the close encapsulation position along relative this valve seat of direction inwardly, in this close encapsulation position, the sealing device engages this valve seat hermetically and flows through hole in this valve body to stop fluid, in this open position, sealing device and this valve seat partition distance flow through in this hole to allow fluid; And

Filter assemblies in abutting connection with sealing control valve unit the inner, it has the size and the structure of the inward flange that can engage this housing, so that the fluid of all these passages of flowing through is by this filter assemblies basically, this filter assemblies comprises filter core, and the particulate matter that the structure of this filter core can stop size to be enough to disturb the sealing device to move to its close encapsulation position really passes through;

The structure of described valve body, black box and filter assemblies can make it be independent of this tubular shell ground and be held in assembly mutually, is installed on the tubular shell passage simultaneously and can be used as single device and side by side remove from this tubular shell passage so that they can be used as single device.

5. sealing valve unit as claimed in claim 4, it is characterized in that: this filter assemblies comprises filter core and the spring seat that links to each other with the sealing device, this spring seat is suitable for fixing this filter core between the inward flange of this spring seat and this housing when the sealing valve is installed to this passage, this filter core remained on when mobile fixed position in this passage between the open and closing position at it when the sealing device, this filter core has the filtration end, this filtration end have can engage with the inward flange of this passage size and structure so that all fluids that flow through this passage are by the filtration end of this filter core basically.

6. sealing valve unit as claimed in claim 4, it is characterized in that: this filter core has the filtration end that is suitable for crossing this passage extension, and have the size and the structure that can engage this housing, so that the fluid of all these passages of flowing through is by the filtration end of this filter core basically.

7. sealing valve unit as claimed in claim 4, it is characterized in that: this filter assemblies comprises filter core and filter housings, this filter housings is suitable for engaging with the inward flange of this tubular shell, so that the fluid of all these passages of flowing through all passes through this filter housings basically, this filter core generally is configured in this filter housings.

8. one kind is used to prevent the method for bulk material through the valve assembly effusion of turbine assembly, described wheel assembly forms the inner space that is used to hold compressed fluid that is surrounded, described valve assembly is included in wherein channelled valve rod, to allow that compressed fluid is directed to described inner space, described passage has and can said method comprising the steps of from the entrance point of wheel assembly outside contact and the outlet end of the described inner space of adjacency:

When this valve rod links to each other with this wheel assembly, in this valve stem passage, insert filter core, the structure of described filter core can allow compressed fluid by the time stop bulk material to pass through; And

After inserting this filter core, in this valve stem passage, seal valve is installed, the sealing valve can be mobile between the open position that allows compressed fluid to flow through described passage and close encapsulation position, and between the entrance point and filter of this passage, thereby this filter positively stops the seal closure that disturbs the sealing valve from the bulk material of this wheel assembly inner space.

9. one kind is used to prevent the method for bulk material through the valve assembly effusion of turbine assembly, described wheel assembly forms the inner space that is used to hold compressed fluid that is surrounded, described valve assembly has valve rod, this valve rod has passage therein, to allow that compressed fluid is directed to described inner space, described passage has and can said method comprising the steps of from the entrance point of wheel assembly outside contact and the outlet end of the described inner space of adjacency:

Filter core is fixed on the sealing valve; And

The sealing valve is installed to this valve stem passage with the filter core that is fixed thereon, the sealing valve can move between the open position that allows compressed fluid to flow through described passage and close encapsulation position, and the structure of this filter core can positively stop the seal closure from the bulk material interference sealing valve of this wheel assembly inner space.

10. the method that is used to prevent that bulk material from overflowing through the valve assembly of turbine assembly as claimed in claim 9 is characterized in that: when this valve rod links to each other with this wheel assembly and this inner space when having held compressed fluid, the sealing valve is installed to this valve stem passage.

11. valve assembly, be used for the turbine assembly combined, this turbine assembly comprises the circular rim of the turned round wheel hub that is connected to vehicle and is connected to the annular tire of this wheel rim, this wheel rim and tire surround and can pressurize to support this vehicle inside space, this valve assembly allows fluid to enter described inner space and optionally stop fluid to flow out from described wheel assembly, and this valve assembly comprises:

Valve rod, this valve rod has inner passage therein and is used for this valve rod is connected to the device of this wheel assembly, the inner space that this inner passage is used to be communicated with this wheel assembly passes in and out this wheel assembly and has entrance point and outlet end to allow fluid, so that this entrance point of described passage can be from this wheel assembly outside contact, the outlet end of this passage is in abutting connection with the inner space of this wheel assembly;

Seal valve, sealing valve are arranged in this valve stem passage so that mobile between the open position that allows compressed fluid to flow through described passage and close encapsulation position; And

Filter core, this filter core are fixedly located in this valve stem passage, and the particulate matter that the structure of this filter core can stop size to be enough to disturb the sealing valve to move to its close encapsulation position really passes through.

12. valve assembly as claimed in claim 11 is characterized in that: this filter core is fixed to the sealing valve.