CN1306196C

CN1306196C - Rotary operated air valves

Info

Publication number: CN1306196C
Application number: CNB011438622A
Authority: CN
Inventors: 巫新财
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-12
Filing date: 2001-12-12
Publication date: 2007-03-21
Anticipated expiration: 2021-12-12
Also published as: CN1424523A

Abstract

The present invention relates to an air valve operated in a rotary mode. The air valve comprises a valve seat, an air tube, a flange, a rotary sleeve which is movably connected with and arranged in the air tube, and a plug glidingly arranged on the inner edge of the rotary sleeve; the inner end and the external end of the air tube are respectively provided with a sealing component and a spacing component, the inner end of the rotary sleeve is provided with a rotary connecting component rotating on the same plane under the constraint of the spacing component, the peripheral wall of the rotary sleeve is provided with an actuating component, the inner end of the plug is provided with a ventilation component for the ingress and the egress of gas flows via objects to be inflated, and the external end of the plug is provided with an inflation port communicated with the ventilation component, the peripheral wall of the plug is provided with an actuated component which can be driven by the actuating component to enable the plug to axially move relatively to the rotary sleeve, and the ventilation component is sealed just by the sealing component when the plug is positioned in an innermost side position.

Description

Rotary operated air valve

(1) technical field

The present invention relates to a kind of air valve, refer to a kind of rotary operated air valve especially.

(2) background technique

A kind of existing inflatable packer as shown in Figure 1 is to be installed on an inflatable packer 92 specific places, and is also sealed for the inflation back with air valve 91.This air valve 91 comprises that one is incorporated into the hollow valve seat 93 of these inflatable packer 92 openings, and connects via a connecting piece 94, and the spiral cover 95 that can borrow its internal female 951 and valve seat 93 outside threads 931 to screw togather screws spiral cover 95 to prevent that gas from releasing after inflation.But in actual mechanical process, when inflatable packer 92 is inflated to suitable pressure, need earlier air compressor (figure does not show) outlet line and the valve seat 93 of supplied with pressure air to be separated, just can further spiral cover 95 be tightened in valve seat 93, in inflatable packer 92, release again so have part air neutral gear between this two action, inflatable packer 92 actual inflation pressures are slightly reduced and inflate poor effect.On the contrary, if will avoid the leakage of gas in the said process as far as possible, operator's action must be very fast and the shortening time, and this restriction again will be to being unfamiliar with operator's build-up of pressure and puzzlement.

(3) summary of the invention

The object of the present invention is to provide and a kind ofly operate facility and inflate respond well rotary operated air valve.

For achieving the above object, technological scheme of the present invention is as follows: a kind of rotary operated air valve, comprise: a valve seat, has a tracheae and radially enlarging to be incorporated into a flange of this object to be inflatable from this tracheae edge, one activity is arranged in a rotation set of this tracheae, and an embolism that is slidedly arranged on this rotation set inner edge, be characterized in: the inner that this tracheae is positioned at this object to be inflatable inside is provided with a driving fit portion, and the outer end then is provided with a limited part; This rotation set the inner is provided with one and is subjected to the constraint of this limited part and this limited part portion that spins of rotating relatively on same radial plane, then is provided with at least one actuation part in this rotation set perisporium; This embolism is tied and only allows in this rotation set inner edge along inside and outside axial displacement, but this embolism the inner is provided with air feed stream by to pass in and out the ventilating part of this object to be inflatable inside, the outer end then is provided with an inflation inlet that is communicated with this ventilating part, and be provided with in this embolism perisporium and driven by this at least one actuation part and make this embolism along inside and outside axially movable at least one operand, and when this embolism was positioned at wherein the inner terminal position, this ventilating part was sealed by the driving fit portion of this tracheae just and stops air communication to cross this object to be inflatable inside of turnover.

Whereby, the present invention can close gas flowing path fast really with simple turn mode of operation, and can prevent further that gas partly releases when inflation inlet is separated with pressurization inflatable tool pipeline in the inflatable substrate.

For further specifying above-mentioned purpose of the present invention, structural feature and effect, the present invention is described in detail below with reference to accompanying drawing.

(4) description of drawings

Fig. 1 is an existing inflatable packer air valve schematic perspective view.

Fig. 2 is a preferred embodiment three-dimensional exploded view of the present invention.

Fig. 3 is the stereogram that preferred embodiment of the present invention is installed in an inflatable packer.

Fig. 4 is the sectional view of preferred embodiment of the present invention in inflated condition.

Fig. 5 is the sectional view of preferred embodiment of the present invention in closed condition.

Fig. 6 is the stereogram that another embodiment of the present invention is installed in an inflatable packer.

(5) embodiment

As shown in Figures 2 and 3, the preferred embodiment of the rotary operated air valve 1 of the present invention is to be installed in an air cushion 2 appropriate locations and to use for 2 inflations of this air cushion, but also can be applicable on the object to be inflatable of other kind.This air valve 1 comprises: a valve seat 3, and have a tracheae 31 and radially enlarge with a flange 32 that is incorporated into air cushion 2 corresponding openings 21, the rotation set 4 that an activity is arranged in this tracheae 31 from these tracheae 31 peripheries, and an embolism 5 that is slidedly arranged on these rotation set 4 inner edges.

This tracheae 31 is to be short pipe shape, it is positioned at the inner 311 chimeric driving fit portions 33 of fixing of air cushion 2 inside, this driving fit portion 33 is made by the material of rubber sheet gasket or the good airtight effect of other tool, comprise a medial flange 331, an outboard flanges 332, and be positioned at a ring wall 333 of 332 of medial flange 331 and outboard flanges, and be embedded in an edge clipping 312 of tracheae 31 inner 311 inside radial projection with this ring wall 333.Tracheae 31 outer end peripheries protrude out the limited part 313 of circular groove shape in, flange 32 then radially enlarges extension and slightly is opening bowl-type outwardly in the inboard slightly from limited part 313, and borrows heat fusion or other suitable mode to be incorporated on air cushion 2 corresponding opening 21 clothes with flange 32 peripheries.

Rotation set 4 outer rims are interval with concavo-convex staggered striped 41, be convenient to the user and grip turn, its radial inner end cooperates the limited part 313 of tracheae 31 to be provided with the portion 42 that spins, this portion 42 that spins comprises and is located at interval rotation set 4 inner peripheries in the present embodiment, and most sheet flanges 421 of the rotation of can sliding in the circular groove of this limited part 313 make the portion of spinning 42 can only rotate on same radial plane along this limited part 313 together with rotation set 4 integral body are subjected to limited part 313 constraints whereby.Rotation set 4 inwalls and the radially inside actuation part 43 that protrudes out two nose bar shapes relatively.

But embolism 5 the inners are provided with air feed stream by to pass in and out the ventilating part 51 of these air cushion 2 inside, the outer end then is provided with an inflation inlet 52 that is communicated with this ventilating part 51, and pressurize inflatable tool (as a compressor with this inflation inlet 52 and, figure does not show) the outlet line linking, superheated steam is forced to send into air cushion 2 inside.Ventilating part 51 comprises most ring-type through holes 511 being located at this embolism 5 inner close radial outside places in the present embodiment, and be positioned at these through hole 511 radially inner sides and the protruding neck 512 that inwardly protrudes out, and this protruding neck 512 can insert ring wall 333 inner edges of tracheae 31 driving fit portions 33 in operation, and intermarginal formation one prevents the airtight effect that gas passes through in protruding neck 512 outer rims and ring wall 333.These embolism 5 perisporiums also reach simultaneously the operand 53 that circumferencial direction tilts to offer two chute-like vertically, and can each establish in it for the nose bar cunning of rotation set 4 actuation part 43.Embolism 5 is near inner place's outer rim and be provided with a planar surface portion 54, can fasten with another planar surface portion 314 parallel sliding of tracheae 31 downside inner edges, and retraining embolism 5 whereby can only can't rotate along axial displacement inside and outside it.

Operation of the present invention, when this air cushion 2 needs inflation or venting, earlier as shown in Figure 4, there is the certain interval place in the driving fit portion 33 that makes the ventilating part 51 of embolism 5 the inners be located at from tracheae 31 the inners 311, and it is inner or oppositely discharge air cushion 2 to make air can enter air cushion 2 through ring wall 333 inner edges of the through hole 511 of ventilating part 51 and driving fit portion 33.And when needing the occluded air circulation path, then counterclockwise rotate rotation set 4, because rotation set 4 is subject to limited part 313 and can only rotates on same plane, and borrow the effect of only revolving of 54,314 of above-mentioned two planar surface portion and the induced effect of actuation part 43 and operand 53, make embolism 5 integral body vertically to intrinsic displacement relatively, insert ring wall 333 inner edges of the inner driving fit of tracheae 31 portion 33 up to the protruding neck 512 of its inner terminal ventilating part 51 as shown in Figure 5, and in protruding neck 512 outer rims and ring wall 333 intermarginal formation one airtight effect, discharge to stop the gases in the air cushion 2.

In addition, in another embodiment shown in Figure 6, more can the less tubular joint 54 ' of a sheathed diameter in the cock 5 ' inflation inlet 52 ', and be connected with the more small-bore outlet line of this connected member 54 ' and a pressurization inflatable tool (figure does not show), make the present invention have higher application elasticity, and the connected member 54 ' of other size or shape equally also can optionally adopt.

Whereby, the present invention is with simple turn mode of operation, can close gas fast and really and pass in and out the circulation path of object to be inflatable through air valve, especially work as object to be inflatable and be inflated to enough pressure, and cock 5 inflation inlets 52 are when still being connected with a pressurization inflatable tool outlet line, can rotate cock 5 earlier to close the gas passageway, again inflation inlet 52 and pressurization inflatable tool outlet line are separated, to prevent that further gas partly releases in the inflatable substrate when inflation inlet 52 is separated with pressurization inflatable tool outlet line.In other words, the present invention has tangible innovation progress than existing apparatus manipulating on convenience and the actual inflation effect.

Certainly, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention the above embodiment's variation, modification.

Claims

1. rotary operated air valve, for object to be inflatable inflation, this air valve comprises: a valve seat, has a tracheae and radially enlarging to be incorporated into a flange of this object to be inflatable from this tracheae edge, one activity is arranged in a rotation set of this tracheae, and an embolism that is slidedly arranged on this rotation set inner edge, it is characterized in that: the inner that this tracheae is positioned at this object to be inflatable inside is provided with a driving fit portion, and the outer end is provided with a limited part; This rotation set the inner is provided with one and is subjected to the constraint of this limited part and this limited part portion that spins of rotating relatively on same radial plane, is provided with at least one actuation part in this rotation set perisporium; This embolism is tied and only allows in this rotation set inner edge along inside and outside axial displacement, but this embolism the inner is provided with air feed stream by to pass in and out the ventilating part of this object to be inflatable inside, the outer end is provided with an inflation inlet that is communicated with this ventilating part, and be provided with in this embolism perisporium and driven by this at least one actuation part and make this embolism along inside and outside axially movable at least one operand, and when this embolism was positioned at wherein the inner terminal position, this ventilating part was sealed by the driving fit portion of this tracheae just and stops air communication to cross this object to be inflatable inside of turnover.

2. rotary operated air valve as claimed in claim 1, it is characterized in that: this ventilating part comprises is located at several through holes of the inner close radial outside place of this embolism, and being positioned at these through hole radially inner sides and an inside protruding neck that axially protrudes out, the driving fit portion of this tracheae comprises that one can be nested in this protruding neck periphery and the pad of tool airtight effect.

3. rotary operated air valve as claimed in claim 2 is characterized in that: this pad is to be made by rubber.

4. rotary operated air valve as claimed in claim 1 is characterized in that: this limited part is included in the circular groove that this tracheae outer end periphery forms, and this portion of spinning comprises and is located at the inner periphery of this rotation set and can be along slide at least one flange of rotation of this circular groove.

5. rotary operated air valve as claimed in claim 1, it is characterized in that: this at least one operand is for reaching simultaneously the chute that circumferencial direction tilts to offer vertically in this embolism perisporium, and this at least one actuation part is for radially inwardly protruding out a nose bar that is slidedly arranged in this chute from this rotation set perisporium.

6. rotary operated air valve as claimed in claim 1 is characterized in that: this tracheae inner edge and this embolism perisporium outer rim respectively are provided with a planar surface portion that slides over each other and fasten, and only allow in this rotation set inner edge along inside and outside axial displacement to retrain this embolism whereby.