CN2182757Y - Device for inflating wheel tyre - Google Patents

Abstract

The utility model relates to a device for inflating a tire, comprising an air cylinder, a bidirectional air charging piston, two one-way valves, a piston pole and an air valve joint device, wherein, the bidirectional air charging piston is engaged with cylinder inner wall of the air cylinder hermetically and the side ring surface of which is provided with an air charging hole which runs through a radial direction; the two one-way valves which are arranged on both ends of the air cylinder separately can lead the air to enter the air cylinder in one direction; an axial hollow air passage is arranged in the piston pole and one end of which runs through a one-way valve to pivot with the piston in order to lead the hollow air passage to communicate with the air charging hole; the air valve joint device which is arranged on the other end of the piston pole connects with the hollow air passage in order to pivot with an air mouth of the tire.

Description

Device for inflating wheel tyre

The relevant a kind of Tire Inflation System that must promote inflation of tire efficient of the utility model.

Press, the Tire Inflation System of commonly using lies in a unidirectional admission port and unidirectional air extractor duct is set respectively in the cylinder, during the piston feeding air pressure in the cylinder contracted and inject in the tire, during return piston stroke, the state that utilizes air pressure to reduce makes ambient atmos enter cylinder via this admission port, gas must be squeezed into tire during feeding once more in order to piston, so piston is in reciprocating travel as can be known, have only single stroke work done that gas is injected tire, for a long time, charge efficiency continuity person always so, do not change, for the charge efficiency that makes tire increases to some extent to save the inflationtime of tire, the creator concentrates on studies at above-mentioned disappearance, so that has the utility model to produce.

The utility model purpose is to provide a kind of Tire Inflation System that can promote inflation of tire efficient.

Below enumerate a preferred embodiment now and cooperate diagram to describe in detail, make feature and the effect of understanding the present invention more, wherein:

Fig. 1 is the block diagram of the utility model preferred embodiment.

Fig. 2 is the exploded perspective part sectional view of the utility model preferred embodiment.

Fig. 3 is that the utility model preferred embodiment is in the 3-3 of Fig. 1 section-drawing.

Fig. 4 is that the utility model preferred embodiment is in the 4-4 of first figure section-drawing.

Fig. 5 is the state that the utility model preferred embodiment is sheathed on cranked tire valve.

Fig. 6 is the action scheme drawing of the utility model, shows that first handle is to the cranked tire valve direction application of force.

Fig. 7 generally is same as Fig. 6, shows that first handle is to the cranked tire valve reversing sense application of force.

See also Fig. 1 to 5, a kind of Tire Inflation System of the utility model includes:

One cylinder 10 is hollow cylindrical, respectively is provided with a negative thread 12 in its two ends tube wall.

One first handle 14 is a hollow cylinder, and its right-hand member is established an annular lip 16, and this first handle 14 is to be placed in the right-hand member of this cylinder 10 and to utilize this annular lip 16 to be stuck in the right side of this cylinder 10.

One first check valve 20, include one and be hemispherical plate body 21 and from these plate body 21 end faces cylinder dish threaded portion 22 that one of stretches out, these plate body 21 end faces are provided with two uniformly-spaced radial indentation 23, the anchor ring of this threaded portion 22 is provided with four axial guide grooves 24, and distribute corresponding to this two radial indentation 23 with two guide grooves 24 respectively, this check valve 20 is multiple from these threaded portion 22 end faces column flange 25 that stretches out, one taper seal ring 26, its circumference ecto-entad dwindles, system is located at this column flange 25, this first check valve 20 is to be bolted in screw thread 12 within these cylinder 10 right-hand members with this threaded portion 22, and the flange 16 of this first handle 14 is limited between this board 21 and this cylinder 10 right sides, taper seal ring 26 is sealed engagement casing wall within cylinder 10.

One two-way air inlet piston 30, please cooperate and consult Fig. 4, its anchor ring predetermined position is established an induction opening 32 that runs through radially, it is positioned on the anchor ring of these induction opening about 32 two sides establishes an annular groove 33 respectively, 34 and form the first shoulder face 331 and the second shoulder face 341,33,34 microscler flanks 35 that formed of this two annular groove are in to should admission port 32 2 ends and establish a breach 36 respectively, and the piston left side is established an axis hole 37 in addition and communicated with this induction opening 32.One first and one second elasticity seal ring 38,39 is to be located at this two annular groove 33,34 respectively; This piston system is located in this cylinder 10, makes this cylinder interior form first space 11 and second space 13, and this two elasticity seal ring 38,39 be with this cylinder within the casing wall sealed engagement.

One piston rod 40, its inside establish one axially among air course 43, its two end is respectively established a ring-type lines 44, is the axis hole 37 that is fixedly arranged on this piston 30 with its right-hand member.

One second check valve 50, have a column body 52 and a threaded portion 53 from these body body 52 1 end face extensions, and with one the perforation 54 run through this body body 52 and threaded portion 53 axial, this 54 walls system of boring a hole establishes a circular groove 55 and forms one the 3rd shoulder face 56, in these circular groove 55 1 lateral margins and establish the protuberance 57 at fourth class interval, and form four breach in 57 of these protuberances; One the 3rd elasticity seal ring 58 is to be located at this circular groove 55; One seal ring 59 is to be located between this body body 52 and this threaded portion 53; This check valve 50 is to be arranged in this piston rod 40 with this perforation 54, this seal ring 58 and these piston rod 40 side faces of sealed engagement, and check valve 50 also is fixed at this cylinder 10 left ends with this threaded portion 53, keeps airtight with this seal ring 59.

One second handle 60, system comprises one of one-body molded a cylinder 62 and an accommodating body 63, and in these cylinder 62 inside establish one axially among hollow round column 65, please cooperate and consult Fig. 5, in order to the other end of affixed this piston rod 40, these accommodating body 63 tops two sides respectively upwards a left side stretch a lug 66, a cylindrical air chamber 67 that runs through is established in inside, and this air chamber 67 is also established a guide hole 671 and is communicated with a bottom spare 68 with this hollow circuit cylinder 65, a through hole 69 is established at its center, and this bottom spare 68 is fixed at this accommodating body 63 bottom surfaces.

One air valve piecing devices 70 are to be located in this air chamber 67, include:

One flexible connector 71 is cylindric, establishes one in the center and runs through axial open-work 72, and this joint 71 is to be located in this air chamber 67 inside, restrained by this bottom spare 68.

One disk is compeled sheet 73, and its center of circle is extended downwards one and compeled pin 74, and it is positioned at this end face of compeling pin 74 peripheries and is provided with the fourth class at interval and the gas port 75 of saturating sky, and it is to be covered on this joint 71 to hold that this disk is compeled sheet 73; This is compeled pin 74 and convexedly stretches in the open-work 72 of this joint 71.

One valve body 76, be cylindric, its anchor ring upper limb is established an annular groove 77, its side ring surface central authorities establish an annular guide channel 78, its lower surface is established two and is run through radially microscler air flue 79 and be communicated with this guide groove 78, one elasticity seal ring 80 is to be located at this annular groove 77, and this valve body 86 is to be located at these urgent sheet 73 upper ends should compel sheet 73 in order to restrain, and this elasticity seal ring 80 is that sealed engagement is in these air chamber 67 inwalls.

One depression bar 90, be hubbed at this second handle 60 with a trunnion this to lug 66, this depression bar 90 front ends system forms a pressing part 92, it is long to the length of depression bar 92 bottom surfaces that this pressing part 92 articulates position apart from this length system that articulates the position than this.

During use these air valve piecing devices 70 are sheathed on this cranked tire valve 94, open-work 72 internal diameters of this flexible connector 71 are slightly larger than this cranked tire valve 94 external diameters, and this disk is compeled 74 valve rod 96 tops that just are positioned at this cranked tire valve 94 of urgent pin of sheet 73.

See also Fig. 5 again, during the desire inflation, utilize these these air valve piecing devices 70 of pressing part 92 compressings to do a downward displacement with pulling on this depression bar 90, then this flexible connector 71 suffer oppression and in this bottom spare 60 elastic deformation, the circle footpath that makes this open-work 72 dwindle and closely bundle be encapsulated in footpath outside this cranked tire valve 94, this valve rod 96 of pin 74 roof pressures of compeling that should compel sheet 73 simultaneously moves down, and makes Tyre air valve form the negotiable state of air-flow.

See also Fig. 6 again, the direction of first handle 14 towards this cranked tire valve 94 moved, make this bidirection air intake piston 30 compressions first space 11, because of taper seal ring 26 sealed engagement of this first check valve 20 in these cylinder 10 walls, its leak-stopping effect make by compression high pressure gas outwards wash with watercolours rush down, high pressure gas and then oppress this first elasticity seal ring 33, because its position corresponding to this breach 36 is held, so stress deformation and form a runner air feed stream and pass through, this second elasticity seal ring 34 is urged toward this second shoulder face 341 by high pressure gas simultaneously, be subjected to this second shoulder face 341 well to hold not distortion and driving fit cylinder 10 walls, block high pressure gas and enter this second space 13, in here high pressure gas promptly all enter this microscler induction opening 32 after flowing through the first elasticity seal ring 35, be guided to air course 42 in this again and enter this air chamber 67, as shown in Figure 5, seal ring 80 sealed air chamber 67 walls because of this valve body 76, high pressure gas are flowed downward, import these microscler air flues 79 by this annular guide channel 78, form the open-work 72 of a powerful airflow passes flexible connector 71 and inject cranked tire valve 94 and make inflation of tire through four gas ports 75 that should compel sheet 73.Volume in this second space 13 simultaneously in these piston 30 these first spaces 11 of compression increases, make its interior air pressure less than the external world, so atmosphere enters via this perforation 54 of this second check valve 50, and logical the 3rd elasticity seal ring 58 of pressure, make its gap portions elastic deformation in 57 of corresponding these protuberances, form a runner, make and be so incensed that to enter second space 13 greatly, remain normality in order to do its air pressure inside.

See also Fig. 7, when with the time away from direction pull first handle 14 of this cranked tire valve 94, this piston 30 compressions second space 13, the 3rd seal ring 58 of this second check valve 50 is to be subjected to the 3rd shoulder face 56 to hold sealed engagement in piston rod 40 side faces, make high pressure gas outwards wash with watercolours rush down and compress this second elasticity seal ring 34 and make its position elastic deformation in corresponding these breach 36, pass through to form a runner air feed stream, this moment, this first elasticity seal ring 33 was subjected to this first shoulder face 331 to hold the nothing distortion, and sealed engagement cylinder 10 walls block high pressure gas and enter first space 11; This second elasticity seal ring 34 enters this microscler induction opening 32 so high pressure gas are flowed through, and conducts to air course 42 in this again and injection Tyre air valve 94; When the interior air pressure in this first space 11 is caused in this piston 30 compressions second space 13 less than barometric pressure, it relatively produces a suction, air is entered via this two radial indentation 23 of this first check valve 20, import through replying by this four guide groove 24, compress this first taper seal ring 26 and make it elastic deformation, be so incensed that to enter first space 11 greatly in order to do allowing, make these space 11 interior gas continue to keep normal pressure.

By this, in reciprocal arbitrary stroke, first and second space 11,13 of its alternate compression all can produce high pressure gas and conduct to air course 42 in this with reaching the same goal by different routes this bidirection air intake piston 30 in this cylinder 10.

When not putting on the air, the non-return of this two check valve 20,50 acts on to such an extent that avoid the interior air pressure of tire to leak.

After inflation of tire is finished, this depression bar 90 is moved down, make these air valve piecing devices 70 no longer be subjected to pressing part 92 apical graftings, and by the elastic recovery of joint 71, return back to the initial position of Fig. 3, no longer bundle envelope Tyre air valve 94 can take off this gas filled device.

The great advantage of a kind of Tire Inflation System of the utility model enters in the cylinder for two check valves of being located at these cylinder two ends make gas unidirectional, compressible gas and with in the gas inject tire all when this bidirection air intake piston is made reciprocating stroke with respect to cylinder, really increase the efficient of inflation of tire, save time.

Claims (5)

1, a kind of Tire Inflation System is characterized in that being to include:

One cylinder is hollow cylindrical;

One two-way air inlet piston, cylindrical, its anchor ring is provided with an induction opening that runs through radially, and respectively be provided with an annular groove on the anchor ring of these induction opening two sides, and form the one first shoulder face and the second shoulder face, and two leakproof elements system is located at this two annular groove respectively, and this piston system is located in this cylinder, and be divided into first space and second space, this two leak-stoppings ring system sealed engagement wall within this cylinder;

Two check valves are two ends that are hubbed at this cylinder respectively, make the gas must be by unidirectional the entering of two ends of this cylinder;

One piston rod, it axially establishes air course in, and one end system runs through a check valve center and is articulated in one of this piston end face and makes that air course communicates with this induction opening in this;

One handle is the other end that articulates this piston rod with its axial predetermined position, and its predetermined position is established an air chamber in order to communicate with air course among this piston rod;

One air valve piecing devices, be located in this air chamber and sealed engagement in this air chamber inwall, in order to articulate the air valve of tire;

One depression bar is the air chamber top of being located at this handle, articulates Tyre air valve in order to oppress this air valve piecing devices sealing.

2, a kind of according to claim 1 Tire Inflation System, it is characterized in that: this first check valve system includes a plate body, one of this plate body end face is provided with majority radial indentation uniformly-spaced, and certainly this end face extend a cylinder in order to be articulated in casing wall within this cylinder so that this plate body is fitted one of this cylinder end face, this cylinder anchor ring is provided with most to axial channel that should radial indentation, and its end face is also established an articulated section, and a taper leak-stopping ring system is hubbed at this articulated section with casing wall within this cylinder of sealed engagement; Its second check valve has an one body and a cylinder from this body body one end face extension, one perforation, system run through this body body and this cylinder axis to, this perforation side face is established a circular groove, and form one the 3rd shoulder face, multiple be provided with uniformly-spaced protuberance in another lateral margin, in the breach of numbers such as these protruding and formation with respect to the 3rd shoulder face in this circular groove inside; One the 3rd leakproof element is to be located in this circular groove, and this second check valve system is located at this cylinder other end with this cylinder in airtight mode, and this perforation system wears for this piston rod, and the 3rd leakproof element and sealed engagement are in this piston rod side face.

3, a kind of according to claim 1 Tire Inflation System is characterized in that this air valve piecing devices system includes:

One flexible connector is cylindric, is to be installed in this air chamber, and its center is established one and run through axial open-work;

One disk is compeled sheet, is to be covered on this flexible connector upper end, and its center of circle is extended one downwards and compeled pin, and is provided with majority in this end face of compeling pin periphery and runs through uniformly-spaced gas port axially;

One valve body, be cylindric, system is installed in this air chamber and pastes this disk and compels the sheet top, its anchor ring upper limb is established an annular groove, its anchor ring central authorities establish an annular guide channel, its lower surface is established the consistent at least radially microscler air flue of diabolo and is communicated with this annular guide channel, and this microscler air flue must be communicated with this annular guide channel in this air chamber, and this ring is convinced groove by patient analysis and must be communicated with these gas ports; One elasticity leak-stopping ring system is located at the hole wall of this annular groove and this air chamber of sealed engagement.

4, a kind of according to claim 1 Tire Inflation System is characterized in that, this depression bar front end has a pressing part, in order to oppress this air valve joint.

5, a kind of according to claim 1 Tire Inflation System is characterized in that, more includes one second handle, is to be located at this cylinder outer rim.

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